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US3408436A - Method for making composite die - Google Patents

Method for making composite die Download PDF

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Publication number
US3408436A
US3408436A US268031A US26803163A US3408436A US 3408436 A US3408436 A US 3408436A US 268031 A US268031 A US 268031A US 26803163 A US26803163 A US 26803163A US 3408436 A US3408436 A US 3408436A
Authority
US
United States
Prior art keywords
recess
die
die member
soap
panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US268031A
Other languages
English (en)
Inventor
Cubitt Robert Bruce
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Colgate Palmolive Co
Original Assignee
Colgate Palmolive Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Colgate Palmolive Co filed Critical Colgate Palmolive Co
Priority to US268031A priority Critical patent/US3408436A/en
Priority to DE19641479026 priority patent/DE1479026C/de
Priority to CH309264A priority patent/CH486553A/de
Priority to GB10782/64A priority patent/GB994017A/en
Priority to FR967524A priority patent/FR1385287A/fr
Priority to BE645364D priority patent/BE645364A/xx
Priority to DK148064AA priority patent/DK117240B/da
Priority to MY196699A priority patent/MY6600099A/xx
Priority to US711820*A priority patent/US3522633A/en
Application granted granted Critical
Publication of US3408436A publication Critical patent/US3408436A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/022—Moulds for compacting material in powder, granular of pasta form
    • B30B15/024—Moulds for compacting material in powder, granular of pasta form using elastic mould parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/065—Press rams
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D13/00—Making of soap or soap solutions in general; Apparatus therefor
    • C11D13/14—Shaping
    • C11D13/16—Shaping in moulds

Definitions

  • This invention relates to a method of making dies for the pressing of soap or like relatively soft material into bars, cakes or any desired compact form, and particularly to dies of this type having a specially formed design bearing section, and to methods and apparatus for making the same.
  • the invention is concerned with a method of making dies for pressing large numbers of small bars of soap of standard size such as the individual cakes supplied in each room by hotels, motels and the like. These establishments have recently required that a name or some other distinct legend or shape be formed on the soap bar to identify the same and as a form of advertising.
  • the present invention provides a solution for this problem by making composite soap die members containing accurately molded panel inserts in a speedy inexpensive manner.
  • Another object of the invention is to provide a method of making a novel soap pressing die structure wherein part of the internal soap contacting and forming surface of the die is a specially formed plastic panel for providing a desired design on the pressed soap bar.
  • a further object of this invention is to provide a novel method of making a soap die member having a soap contacting and forming surface wherein an insert panel or the like is formed as by molding or casting into a recess in said surface, said panel having an exposed surface which except fer a design is essentially a continuation of said die pressing surface, and wherein the incorporated panel is removable for molding or casting a substitute panel.
  • a further object of the invention is to provide a method of making a rigid soap pressing die having a smooth soap contacting surface such as metal formed with a recess, and a design forming insert panel of moldable plastic in said recess.
  • Another object of the invention is to provide a method of utilizing an apparatus for making a soap die having a molded plastic panel in a recess in its soap contacting and forming surface wherein the die member is clamped over a master design bearing blank that closes the recess during molding.
  • FIGURE 1 is a top plan view of a metal soap pressing die upper member according to a preferred form of the invention
  • FIGURE 2 is a section on line 2-2 of FIGURE 1, showing the soap pressing surface recess for receiving the panel;
  • FIGURE 3 is a section on line 3-3 of FIGURE 2;
  • FIGURE 4 is a bottom plan view of the soap die member of FIGURE 1 showing the panel recess;
  • FIGURE 5 is a section similar to FIGURE 2, but showing the insert panel in the recess;
  • FIGURE 6 is a bottom plan view of the die member of FIGURE 5 showing the panel surface design
  • FIGURE 7 is a generally exploded view partly in section showing the parts in position for carrying out the method of the invention.
  • FIGURE 8 shows the parts of FIGURE 7 in operative assembly and after the plastic material has been introduced to form the insert
  • FIGURE 9 is a top plan view of the jig base showing the master panel recess.
  • the soap die assemblies comprise a die box 10 and associated upper and lower die members 11 and 12, which are relatively separable vertically for the introduction of a body of soap into the cavity 13 therebetween to pressed and compacted into the shape and size of the cavity.
  • die box and die member arrangements are the same as disclosed in United States Letters Patent to Sweet et al. No. 2,965,946, issued Dec. 27, 1960, to which reference is made for further detail.
  • Lower die member 12 has recessed therein a smooth soap contacting surface 14, and upper die member 11 has recessed therein a smooth recessed soap contacting surface 15.
  • die members 11 and 12 may be hard wear resistant steel blocks usually of stain less steel, and the recessed forming surfaces 14 and 15 are smooth without abrupt corners.
  • the size and shape of cavity 13 are the size and shape of the desired soap bar.
  • the upper die member 11 has a continuous sharp edge 16 around its lower circumference surrounding recess 15, and lower die member 12 has a similar continuous sharp edge 17 around its upper circumference surrounding recess 14.
  • the metal die member 11 has surface 15 recessed to form a panel mounting recess 18.
  • This recess is generally rectangular with rounded circumferential corners and having a flat bottom face 19 parallel to the medial portion of die surface 15.
  • the sides 21 and 22 of recess 18 are preferably flat and intersect face 19 at right angles.
  • Completely filling recess 18 is a panel 23 of relatively hard plastic material (FIGURES 5 and 6) which has an exposed smooth fiat surface 24 at the same level as, and substantially a continuation of, die surface 15.
  • Integrally formed on panel surface 24 is a design 25 shown here in relief to project within cavity 13, and adapted to impress an intaglio design into the compacted soap bar.
  • the design 25 could be intaglio, or even a combination of intaglio and relief,
  • the panel 23 is secured tightly in place, either by its mode of assembly as will appear, or by separate locking elements as also will appear, or a combination of both.
  • the metal die member 11 is formed with three bores 26 leading from the top to open into recess 18, as shown in FIGURE 2.
  • the die member of FIGURE 2 is placed in a jig comprising a rigid supporting base 27 formed with a central opening 28 surrounded by an annular recessed shoulder 29. Stepped at a higher level than the horizontal planar bottom of shoulder 29 is a further annular flat horizontal shoulder 31 having a planar bottom parallel to that of shoulder 29.
  • a master blank 32 of hard non-deformable plastic which circumferentially fills the shouldered recess at 29 and projects above it.
  • the flat upper horizontal surface 33 of blank 32 is formed at 34 in reverse intaglio with the design eventually desired to be formed on the panel insert 23.
  • Die member 11 which circumferentially fills shouldered recess 31, is mounted over the blank 32 with the die surface engaging the upper side of blank 32 and the die is held tightly thereby posts 35 upstanding from holes 36 in the base 27, clamps 37 extending over its upper end, and nuts 38 tightening down on the clamps on the threaded upper ends of posts 35.
  • blank 32 is clamped between the die 11 and base 27.
  • blank 32 The entire upper surface of blank 32 is coated with a parting compound, to prevent it sticking to die surface 15 or the molded insert panel to be described.
  • a suitable moldable material is poured or injected through the central bore 26 until cavity 18 is at least entirely filled and preferably until the material rises to a certain level in all three bores 26.
  • air from cavity 18 escapes through the two outer bores 26.
  • This material of course fills the design inscription 34 on blank surface 33.
  • this material is preferably a synthetic resin or non-metallic plastic that will set, cure or otherwise harden satisfactorily in the cavity 18.
  • the insert 23 provided by the material is now in place with the design projecting into recess 15, and the die member is ready for use in soap pressing apparatus as in FIGURE 5.
  • the anchoring of panel 23 in place may be assured by providing in one or more outer bores 26 suitable fasteners such as screws 39 that have their threaded ends 41 embedded in the plastic material in the lower part of the bore and their enlarged heads 42 seated in countersinks 43 at the upper ends of the bores.
  • the die member 11 is usually hard metal or plastic resistant to corrosion by acids in the soaps and by moisture.
  • the illustrated die member 11 is one such as heretofore used for replaceable panels inserted into recess 18.
  • the master blank 32 can be an inscribed plate of any suitable material, and I have found it very satisfactory to use a hard tough machineable plastic such as the polymerized methyl methacrylate resin known as Lucite, which is resistant to heat, water and the soap components and may be easily cleanly molded or machined to provide the desired design.
  • a hard tough machineable plastic such as the polymerized methyl methacrylate resin known as Lucite, which is resistant to heat, water and the soap components and may be easily cleanly molded or machined to provide the desired design.
  • a suitable parting compound such as a silicone wax mold release is coated over surface 33, dried and polished. Care is taken not to fill the design inscription. This plate must be such as not to deform when the resin curing requires heat.
  • This parting compound is also spread over the entire surface of recess 18 and the interior of bores 26, so that when it is desired to replace insert panel 23 by one having a different inscription the entire hardened plastic body may be knocked as a unit out of die 11.
  • the material of panel 23 must be one that is capable of being reduced to fluent condition for pouring or injecting into bore 26 and occupying the cavity including the design spaces on plate 32, and then curing in situ with substantially no shrinkage to preserve surface continuity with the die.
  • the panel material is a thermo setting material that exhibits the following properties, although thermoplastic materials may also be used. It must have low viscosity during pouring to allow the escape of air bubbles. It must have minimum shrinkage during curing or otherwise hardening, preferably a maximum of 1 to 2 percent and certainly well under 5 percent. It must not expand appreciably during hardening, to avoid cracking the die member or undesired distortion.
  • the heat required for hardening should be well below the heat distortion temperature of the die member or plate 32. In fact it is preferable to provide a resin which will harden within a reasonable time at room temperature.
  • the preferred panel material is a thermo setting resin such as one of the epoxy resins.
  • a thermo setting resin such as one of the epoxy resins.
  • One of these epoxy resins found quite satisfactory is that known as Shell Epon 815, and its viscosity is suitably adjusted by introduction of a diluent such as a suitable glycerol based resin. While this resin will attain a suitable hardened condition at room temperature. I have been able to accelerate hardening somewhat by overnight storage in a F. oven. It must be appreciated that higher temperatures of hardening may introduce unwanted stresses due to differences in thermal expansion of the die member and the insert 23.
  • the fasteners 39 which are used in each of bores 24 and 25 are inserted while the resin is still plastic, and when the resin hardens the assembly is locked together permanently.
  • the foregonig provides an improved method of incorporating insert panels in soap die members which is not only speedy and inexpensive but results in a superior die member wherein the cast insert surface 24 is a substantially smooth continuation of die surface 25.
  • This insert may be speedily and efficiently replaced by another simply by knocking out the hardened insert panel and incorporating a new one by the method described above.
  • a method of producing a composite die part having a design panel insert in a recess in the forming surface of a metal die member and being adapted for the pressing of soap or like relatively soft material into a desired solid compact form which comprises the steps of mounting said die member having a plurality of bores leading from the top of said member to said recess in a fixture wherein said recess is closed by a rigid blank that has its inner face extending across said recess substantially continuous with said die forming surface of the die member and formed with the desired design in reverse facing into said recess, introducing a fluent moldable synthetic resin plastic material through a bore in said die member to at least fill said closed recess, allowing said material to harden in said recess and removing the completed composite die part having the molded panel insert fixedly incorporated therein from said fixture, said insert surface being a substantial continuation of said die member forming surface.
  • a method of producing a composite die part having a design bearing plastic panel insert in a recess in the forming surface of a rigid metal die member and being adapted for the pressing of soap or like relatively soft material into a desired solid compact form which comprises the steps of mounting said die member having a plurality of bores leading from the top of said member to said recess in a fixture wherein said recess is closed by a relatively rigid blank of non-metallic plastic that is resistant to deformation when heated and has its inner face extending across said recess substantially continuous with said die forming surface of said die member and formed with the desired design in reverse facing into said recess, introducing thermosetting synthetic resin material through a bore in said die member to at least fill said recess, allowing said material to harden in said recess and separating the completed composite die part having the molded panel insert fixedly incorporated therein from said fixture and said blank, said insert surface being a substantially smooth continuation of the die member forming surface.
  • a method of producing a composite die part having a design bearing plastic panel insert in a recess in the forming surface of a rigid die member and being adapted for the pressing of soap or like relatively soft material into a desired solid compact form which comprises the steps of mounting said die member having a plurality of bores leading from the top of said member to said recess in a fixture wherein said recess is closed by a rigid blank that has its inner face extending across said recess substantially continuous with said die surface and formed with the desired design in reverse facing into said recess, pouring fluent moldable synthetic resin plastic material through a bore in said die member to at least fill said recess, introducing a fastener into one of said bores to be partially embedded in said material and interlocked with said die member, allowing said material to harden and separating the completed composite die part having the locked molded panel insert fixedly incorporated therein from said fixture and said blank, said insert surface being a substantially smooth continuation of the die member forming surface.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Food-Manufacturing Devices (AREA)
US268031A 1963-03-26 1963-03-26 Method for making composite die Expired - Lifetime US3408436A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US268031A US3408436A (en) 1963-03-26 1963-03-26 Method for making composite die
DE19641479026 DE1479026C (de) 1963-03-26 1964-03-04 Verfahren zum Herstellen eines mehr teihgen Preßstempels
CH309264A CH486553A (de) 1963-03-26 1964-03-10 Verfahren und Vorrichtung zur Herstellung eines Prägeeinsatzes für eine zusammengesetzte Stanzform und nach dem Verfahren hergestellter Prägeeinsatz
GB10782/64A GB994017A (en) 1963-03-26 1964-03-13 Dies, and method and apparatus for making them
FR967524A FR1385287A (fr) 1963-03-26 1964-03-16 Moule, procédé et appareil pour sa fabrication
BE645364D BE645364A (xx) 1963-03-26 1964-03-18
DK148064AA DK117240B (da) 1963-03-26 1964-03-24 Matrice samt fremgangsmåde til fremstilling af samme.
MY196699A MY6600099A (en) 1963-03-26 1966-12-31 Dies, and method and apparatus for making them
US711820*A US3522633A (en) 1963-03-26 1968-01-15 Composite die member

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US268031A US3408436A (en) 1963-03-26 1963-03-26 Method for making composite die
US71182068A 1968-01-15 1968-01-15

Publications (1)

Publication Number Publication Date
US3408436A true US3408436A (en) 1968-10-29

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ID=26952835

Family Applications (2)

Application Number Title Priority Date Filing Date
US268031A Expired - Lifetime US3408436A (en) 1963-03-26 1963-03-26 Method for making composite die
US711820*A Expired - Lifetime US3522633A (en) 1963-03-26 1968-01-15 Composite die member

Family Applications After (1)

Application Number Title Priority Date Filing Date
US711820*A Expired - Lifetime US3522633A (en) 1963-03-26 1968-01-15 Composite die member

Country Status (7)

Country Link
US (2) US3408436A (xx)
BE (1) BE645364A (xx)
CH (1) CH486553A (xx)
DK (1) DK117240B (xx)
FR (1) FR1385287A (xx)
GB (1) GB994017A (xx)
MY (1) MY6600099A (xx)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474498A (en) * 1967-04-05 1969-10-28 Nat Latex Products Co The Interchangeable indicia-forming device for blow-molded plastic articles
US3530022A (en) * 1966-01-17 1970-09-22 Gen Tire & Rubber Co Method of making interchangeable medallions for plastic mat-forming molds
US3548050A (en) * 1967-04-28 1970-12-15 Delta Pattern & Model Co Method of making resin faced metal molding dies
US3871060A (en) * 1971-12-29 1975-03-18 Ladney M Jr Method of constructing mold for forming plastic foam parts
USRE28826E (en) * 1974-01-30 1976-05-25 Method of constructing mold for forming plastic foam
US4091068A (en) * 1976-05-13 1978-05-23 Motorola Inc. Method of immobilizing a printed circuit board
US4350486A (en) * 1979-12-04 1982-09-21 Laeis-Werke Ag Press for ceramic moldings
US4793959A (en) * 1987-01-26 1988-12-27 Lever Brothers Company Process for stamping a detergent bar
US4946637A (en) * 1989-01-17 1990-08-07 Masciarelli Jr Victor J Molding method
US5269997A (en) * 1992-04-30 1993-12-14 The Procter & Gamble Company Method and apparatus for stamping plastic articles such as soap bars using elastomeric sheet separators
WO1999058320A1 (en) * 1998-05-12 1999-11-18 Fuisz Technologies Ltd. Improved die punch and tip assembly for forming compression dosage units
WO1999062699A1 (en) * 1998-06-05 1999-12-09 Aylward Enterprises, Inc. Apparatus for forming a compression-molded product
US6007751A (en) * 1992-09-09 1999-12-28 M&R Marking Systems, Inc. Method for preparing pre-inked impression members for marking devices
US6439874B1 (en) * 1996-12-27 2002-08-27 Leverbrothers Company, Division Of Conopco, Inc. Die especially for stamping detergent bars
US7651652B1 (en) * 2006-07-18 2010-01-26 Robert Cameron Print pad and method of manufacture

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743463A (en) * 1970-09-21 1973-07-03 Union Carbide Corp Mold construction having thermal baffle for molding articles without distortion such as plastic printing plates and the like
US4781564A (en) * 1987-06-11 1988-11-01 Cerrone Carmen J Apparatus for reforming soap bars
EP1105284A1 (de) * 1998-08-21 2001-06-13 Henkel Kommanditgesellschaft auf Aktien Presswerkzeug mit antihafteigenschaften
US6780362B1 (en) 2000-05-10 2004-08-24 Unilever Home & Personal Care, Usa Division Of Conopco, Inc. Modular mold and die assembly
JP2002240098A (ja) * 2001-02-15 2002-08-28 Sony Corp 成形用金型、成形用金型の製造方法及び成形用金型によって成形された成形品

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677151A (en) * 1951-11-03 1954-05-04 Socony Vacuum Oil Co Inc Method of casting wax slabs
US2679663A (en) * 1950-02-01 1954-06-01 Goodrich Co B F Marking of molded articles
US2709278A (en) * 1951-11-03 1955-05-31 Greer J W Co Method of moulding wax
US2860947A (en) * 1954-06-14 1958-11-18 Western Electric Co Method of casting phenolic resins in a tin-plated mold
US2965946A (en) * 1958-10-02 1960-12-27 Colgate Palmolive Co Apparatus and process for pressing detergent bars and cakes
US3054145A (en) * 1956-04-23 1962-09-18 Naimer H L Method of manufacturing nuts and mold for use in manufacturing the nuts
US3100318A (en) * 1959-04-07 1963-08-13 Firestone Tire & Rubber Co Mold identification plug
US3114174A (en) * 1962-09-12 1963-12-17 Lawrence S Kunetka Mold for making flexible printing plates for corrugated board
US3121258A (en) * 1960-11-09 1964-02-18 Western Electric Co Molding apparatus
US3124092A (en) * 1964-03-10 Plastic mating dies and metallic holder supports therefor
US3134143A (en) * 1960-08-16 1964-05-26 Continental Gummi Werke Ag Mold for making elastic solid tires, friction wheels and other wheels

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1380919A (en) * 1919-05-14 1921-06-07 Western Vulcanizer Mfg Company Matrix for vulcanizers
US2587297A (en) * 1948-07-16 1952-02-26 Super Mold Corp Matrix for tire treads with lateral traction slits
US2752638A (en) * 1950-12-30 1956-07-03 Gen Aniline & Film Corp Process of polymerizing alpha-chloroacrylic acid esters in contact with a vitreous surface and in the presence of an oily siloxane polymer
US2656570A (en) * 1951-11-15 1953-10-27 Elise F Harmon Plastic matrix for printing resistors
US2751628A (en) * 1953-03-23 1956-06-26 Air Reduction Molded acetylenic polymer and method of production
US2956946A (en) * 1958-07-10 1960-10-18 Exxon Research Engineering Co Process for removing acids with an ethylene glycol monoalkylamine ether
BE581457A (xx) * 1958-08-12

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124092A (en) * 1964-03-10 Plastic mating dies and metallic holder supports therefor
US2679663A (en) * 1950-02-01 1954-06-01 Goodrich Co B F Marking of molded articles
US2677151A (en) * 1951-11-03 1954-05-04 Socony Vacuum Oil Co Inc Method of casting wax slabs
US2709278A (en) * 1951-11-03 1955-05-31 Greer J W Co Method of moulding wax
US2860947A (en) * 1954-06-14 1958-11-18 Western Electric Co Method of casting phenolic resins in a tin-plated mold
US3054145A (en) * 1956-04-23 1962-09-18 Naimer H L Method of manufacturing nuts and mold for use in manufacturing the nuts
US2965946A (en) * 1958-10-02 1960-12-27 Colgate Palmolive Co Apparatus and process for pressing detergent bars and cakes
US3100318A (en) * 1959-04-07 1963-08-13 Firestone Tire & Rubber Co Mold identification plug
US3134143A (en) * 1960-08-16 1964-05-26 Continental Gummi Werke Ag Mold for making elastic solid tires, friction wheels and other wheels
US3121258A (en) * 1960-11-09 1964-02-18 Western Electric Co Molding apparatus
US3114174A (en) * 1962-09-12 1963-12-17 Lawrence S Kunetka Mold for making flexible printing plates for corrugated board

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530022A (en) * 1966-01-17 1970-09-22 Gen Tire & Rubber Co Method of making interchangeable medallions for plastic mat-forming molds
US3474498A (en) * 1967-04-05 1969-10-28 Nat Latex Products Co The Interchangeable indicia-forming device for blow-molded plastic articles
US3548050A (en) * 1967-04-28 1970-12-15 Delta Pattern & Model Co Method of making resin faced metal molding dies
US3871060A (en) * 1971-12-29 1975-03-18 Ladney M Jr Method of constructing mold for forming plastic foam parts
USRE28826E (en) * 1974-01-30 1976-05-25 Method of constructing mold for forming plastic foam
US4091068A (en) * 1976-05-13 1978-05-23 Motorola Inc. Method of immobilizing a printed circuit board
US4350486A (en) * 1979-12-04 1982-09-21 Laeis-Werke Ag Press for ceramic moldings
US4822273A (en) * 1987-01-26 1989-04-18 Lever Brothers Company Apparatus for stamping a detergent bar
US4793959A (en) * 1987-01-26 1988-12-27 Lever Brothers Company Process for stamping a detergent bar
US4946637A (en) * 1989-01-17 1990-08-07 Masciarelli Jr Victor J Molding method
US5269997A (en) * 1992-04-30 1993-12-14 The Procter & Gamble Company Method and apparatus for stamping plastic articles such as soap bars using elastomeric sheet separators
US6007751A (en) * 1992-09-09 1999-12-28 M&R Marking Systems, Inc. Method for preparing pre-inked impression members for marking devices
US6348168B1 (en) * 1992-09-09 2002-02-19 M&R Marking Systems, Inc. Method for preparing pre-inked impression members for marking devices
US6439874B1 (en) * 1996-12-27 2002-08-27 Leverbrothers Company, Division Of Conopco, Inc. Die especially for stamping detergent bars
WO1999058320A1 (en) * 1998-05-12 1999-11-18 Fuisz Technologies Ltd. Improved die punch and tip assembly for forming compression dosage units
WO1999062699A1 (en) * 1998-06-05 1999-12-09 Aylward Enterprises, Inc. Apparatus for forming a compression-molded product
US6106267A (en) * 1998-06-05 2000-08-22 Aylward; John T. Apparatus for forming a compression-molded product
US7651652B1 (en) * 2006-07-18 2010-01-26 Robert Cameron Print pad and method of manufacture

Also Published As

Publication number Publication date
DE1479026A1 (de) 1969-02-06
US3522633A (en) 1970-08-04
MY6600099A (en) 1966-12-31
FR1385287A (fr) 1965-01-08
DE1479026B2 (de) 1972-10-12
CH486553A (de) 1970-02-28
GB994017A (en) 1965-06-02
BE645364A (xx) 1964-09-18
DK117240B (da) 1970-03-31

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