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IT1128748B - Perfezionamento negli apparecchi idraulici di sollevamento ed abbassamento di carichi - Google Patents

Perfezionamento negli apparecchi idraulici di sollevamento ed abbassamento di carichi

Info

Publication number
IT1128748B
IT1128748B IT5052179A IT5052179A IT1128748B IT 1128748 B IT1128748 B IT 1128748B IT 5052179 A IT5052179 A IT 5052179A IT 5052179 A IT5052179 A IT 5052179A IT 1128748 B IT1128748 B IT 1128748B
Authority
IT
Italy
Prior art keywords
improvement
hydraulic lifting
lowering loads
loads
lowering
Prior art date
Application number
IT5052179A
Other languages
English (en)
Other versions
IT7950521A0 (it
Inventor
Robert Smilges
Original Assignee
Abex Corp
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 Abex Corp filed Critical Abex Corp
Publication of IT7950521A0 publication Critical patent/IT7950521A0/it
Application granted granted Critical
Publication of IT1128748B publication Critical patent/IT1128748B/it

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2544—Supply and exhaust type
    • Y10T137/2554—Reversing or 4-way valve systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7784—Responsive to change in rate of fluid flow
    • Y10T137/7787—Expansible chamber subject to differential pressures
    • Y10T137/7788—Pressures across fixed choke

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Servomotors (AREA)
IT5052179A 1979-01-15 1979-10-10 Perfezionamento negli apparecchi idraulici di sollevamento ed abbassamento di carichi IT1128748B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/003,165 US4244275A (en) 1979-01-15 1979-01-15 Counterbalance valve

Publications (2)

Publication Number Publication Date
IT7950521A0 IT7950521A0 (it) 1979-10-10
IT1128748B true IT1128748B (it) 1986-06-04

Family

ID=21704497

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5052179A IT1128748B (it) 1979-01-15 1979-10-10 Perfezionamento negli apparecchi idraulici di sollevamento ed abbassamento di carichi

Country Status (9)

Country Link
US (1) US4244275A (it)
AU (1) AU5088379A (it)
BR (1) BR7907549A (it)
DE (1) DE2945902A1 (it)
ES (1) ES8101211A1 (it)
FR (1) FR2446396A1 (it)
GB (1) GB2040402A (it)
IT (1) IT1128748B (it)
SE (1) SE7907869L (it)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404891A (en) * 1980-08-18 1983-09-20 Paccar Inc. Brake valve for a hydraulically powered winch
US4622884A (en) * 1981-04-10 1986-11-18 Buchl Andrew F Floating piston depth control apparatus
DE3140266A1 (de) * 1981-10-10 1983-04-28 Mannesmann Rexroth GmbH, 8770 Lohr "vorrichtung zum steuern eines hydromotors"
US4466336A (en) * 1982-02-08 1984-08-21 Lakeland Hydraulics, Inc. Control valve for hydraulic motor apparatus
FR2531175B1 (fr) * 1982-07-27 1986-04-04 Bennes Marrel Valve pilotee pour le freinage ou la limitation de vitesse dans un circuit hydraulique
CH656687A5 (de) * 1982-08-30 1986-07-15 Elektrowatt Ag Regelventil mit einem stetig wirkenden elektromagnetischen stellantrieb.
JPS6262002A (ja) * 1985-09-10 1987-03-18 Toyoda Autom Loom Works Ltd 流量制御機構付き方向制御弁
US4720975A (en) * 1986-05-15 1988-01-26 Ramsey Winch Company Control valve
DE3733679A1 (de) * 1987-10-05 1989-04-13 Rexroth Mannesmann Gmbh Steuerschaltung fuer einen mit einer verstellpumpe betriebenen hydraulischen kraftheber
DE3733677A1 (de) * 1987-10-05 1989-04-13 Rexroth Mannesmann Gmbh Lastunabhaengige steuereinrichtung fuer hydraulische verbraucher
US4836089A (en) * 1987-10-16 1989-06-06 Allied-Signal Inc. Series spool pressure regulator arrangement for a double-acting hydraulic actuator
DE3800188A1 (de) * 1988-01-07 1989-07-20 Danfoss As Hydraulische sicherheitsbremsventilanordnung
FR2627838B1 (fr) * 1988-02-25 1991-01-11 Bennes Marrel Valve de securite pour recepteur hydraulique et circuit hydraulique la comportant
JPH0471801U (it) * 1990-10-26 1992-06-25
AT402334B (de) * 1991-03-20 1997-04-25 Hoerbiger Gmbh Hydraulische zylinder/kolben-anordnung
DE4207803A1 (de) * 1991-05-14 1992-11-19 Bosch Gmbh Robert Druckhalteventil
DE4420682A1 (de) * 1994-06-14 1996-01-04 Rexroth Mannesmann Gmbh Hydrauliksteuerung für eine teilende Werkzeugmaschine
JPH08114202A (ja) * 1994-09-30 1996-05-07 Samsung Heavy Ind Co Ltd ホールディングチェックコントロールバルブ
DE19528981C1 (de) * 1995-08-07 1996-10-02 Heilmeier & Weinlein Verfahren zum Steuern eines Hydroverbrauchers und hydraulische Steuervorrichtung zur Durchführung des Verfahrens
US5676169A (en) * 1996-01-24 1997-10-14 Power Team Division Of Spx Corporation Counterbalance valve
US5875811A (en) * 1997-04-17 1999-03-02 Dana Corporation Counterbalance valve with improved relief pressure setting arrangement
DE19922866C2 (de) * 1999-05-19 2002-11-14 Sauer Danfoss Holding As Nordb Hydraulische Leitungskupplung
WO2003100264A1 (de) * 2002-05-24 2003-12-04 Metso Lindemann Gmbh Hydraulische steuerung in einem hydraulischen system, insbesondere für den betrieb einer schrottschere
US7886831B2 (en) 2003-01-22 2011-02-15 Enventure Global Technology, L.L.C. Apparatus for radially expanding and plastically deforming a tubular member
NL1023583C2 (nl) * 2003-06-02 2004-12-03 Actuant Corp Hydraulische bedieningsinrichting.
US7712522B2 (en) 2003-09-05 2010-05-11 Enventure Global Technology, Llc Expansion cone and system
GB2432866A (en) 2004-08-13 2007-06-06 Enventure Global Technology Expandable tubular
US20080265199A1 (en) * 2007-04-24 2008-10-30 Sauer-Danfoss Inc. Zero leakage balance valve system
US8262058B2 (en) * 2008-08-28 2012-09-11 Kot Norbert J Balanced pilot operated check valve
US8091355B2 (en) * 2008-10-23 2012-01-10 Clark Equipment Company Flow compensated restrictive orifice for overrunning load protection
CA2816701C (en) * 2010-10-05 2018-06-19 Sko Flo Industries, Inc. Flow rate controller for high flow rates and high pressure drops
US9611871B2 (en) 2013-09-13 2017-04-04 Norbert J. Kot Pneumatic valve assembly and method
EP3680067B1 (en) * 2017-12-07 2021-10-06 Maxell Izumi Co., Ltd. Electrically powered tool

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1074657A (fr) * 1951-11-27 1954-10-07 Borg Warner Perfectionnements relatifs aux installations de commande de l'énergie hydraulique
US2881793A (en) * 1954-12-22 1959-04-14 Keelavite Co Ltd Flow control valves and apparatus embodying such valves
US3072107A (en) * 1961-03-16 1963-01-08 Flowmatic Controls Inc Hydraulic lift control system and valve therefor
DE1817822C3 (de) * 1968-12-09 1973-09-27 Vickers Gmbh, 6380 Bad Homburg Hauptstromregelventil, insbeson dere zur Lastabsenkung fur Hubzylinder Ausscheidung aus 1813500
US4008731A (en) * 1971-03-08 1977-02-22 I-T-E Imperial Corporation Counterbalance valve
US4172582A (en) * 1977-04-21 1979-10-30 Rexnord Inc. Reverse differential holding valve

Also Published As

Publication number Publication date
ES485293A0 (es) 1980-04-16
DE2945902A1 (de) 1980-07-24
ES8101211A1 (es) 1980-04-16
BR7907549A (pt) 1980-10-14
US4244275A (en) 1981-01-13
IT7950521A0 (it) 1979-10-10
FR2446396A1 (fr) 1980-08-08
SE7907869L (sv) 1980-07-16
AU5088379A (en) 1980-07-24
GB2040402A (en) 1980-08-28

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