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DE1497556A1 - Anordnung fuer einen transportablen Projektionsschirm - Google Patents

Anordnung fuer einen transportablen Projektionsschirm

Info

Publication number
DE1497556A1
DE1497556A1 DE19661497556 DE1497556A DE1497556A1 DE 1497556 A1 DE1497556 A1 DE 1497556A1 DE 19661497556 DE19661497556 DE 19661497556 DE 1497556 A DE1497556 A DE 1497556A DE 1497556 A1 DE1497556 A1 DE 1497556A1
Authority
DE
Germany
Prior art keywords
support
legs
ring
leg
arrangement according
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.)
Pending
Application number
DE19661497556
Other languages
German (de)
English (en)
Inventor
Cota Glenn Lowell
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.)
Radiant Manufacturing Corp
Original Assignee
Radiant Manufacturing 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 Radiant Manufacturing Corp filed Critical Radiant Manufacturing Corp
Publication of DE1497556A1 publication Critical patent/DE1497556A1/de
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/242—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by spreading of the legs
    • F16M11/245—Members limiting spreading of legs, e.g. "umbrella legs"
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • F16M11/105—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis the horizontal axis being the roll axis, e.g. for creating a landscape-portrait rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/04—Balancing means
    • F16M2200/044—Balancing means for balancing rotational movement of the undercarriage

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
DE19661497556 1965-05-24 1966-04-20 Anordnung fuer einen transportablen Projektionsschirm Pending DE1497556A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US458316A US3315930A (en) 1965-05-24 1965-05-24 Portable projection screen stand

Publications (1)

Publication Number Publication Date
DE1497556A1 true DE1497556A1 (de) 1969-07-10

Family

ID=23820302

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19661497556 Pending DE1497556A1 (de) 1965-05-24 1966-04-20 Anordnung fuer einen transportablen Projektionsschirm

Country Status (4)

Country Link
US (1) US3315930A (da)
DE (1) DE1497556A1 (da)
GB (1) GB1081968A (da)
NL (1) NL6607140A (da)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819457A (en) * 1973-02-26 1974-06-25 Consolidated Novelty Co Ltd Artificial christmas tree having erectable limbs
GB2222516A (en) * 1988-08-22 1990-03-14 Hwang Sheng Chang Supporting structure
GB2244424B (en) * 1990-04-27 1993-01-20 Reckitt & Colman Fine Art & Gr Improvements to adjustable supports
US6102357A (en) * 1998-02-18 2000-08-15 Papadatos; Evangelos A. Multi-positional tree stand
US6923469B2 (en) * 2002-08-09 2005-08-02 Ames True Temper, Inc. Collapsible wheelbarrow
US6851701B2 (en) * 2002-08-09 2005-02-08 Ames True Temper, Inc. Collapsible wheelbarrow and associated method
US6981350B1 (en) 2003-01-24 2006-01-03 Draper, Inc. Projection screen apparatus
US20050087958A1 (en) * 2003-05-07 2005-04-28 Ames True Temper, Inc. Collapsible wheelbarrow
US7832701B2 (en) * 2006-04-11 2010-11-16 Barnes Bobby M Easy open portable easel
CN104730840A (zh) * 2015-04-08 2015-06-24 王静 一种便携式投影屏幕

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899164A (en) * 1959-08-11 Portable tripod stand for projection
US755043A (en) * 1903-11-27 1904-03-22 George W Pike Folding stool.
US1258518A (en) * 1917-08-01 1918-03-05 Louis B Ankovitz Umbrella-holder.
US2825518A (en) * 1956-05-16 1958-03-04 Sr Laurel E Cooley Portable projection screen structure
US2925979A (en) * 1957-03-29 1960-02-23 William P Walker Paint bucket support for use on staging

Also Published As

Publication number Publication date
GB1081968A (en) 1967-09-06
NL6607140A (da) 1966-11-25
US3315930A (en) 1967-04-25

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