GB947849A - Improvements in or relating to seating structures - Google Patents

Improvements in or relating to seating structures

Info

Publication number
GB947849A
GB947849A GB38738/62A GB3873862A GB947849A GB 947849 A GB947849 A GB 947849A GB 38738/62 A GB38738/62 A GB 38738/62A GB 3873862 A GB3873862 A GB 3873862A GB 947849 A GB947849 A GB 947849A
Authority
GB
United Kingdom
Prior art keywords
seat
ring
post
reservoir
post structure
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
Application number
GB38738/62A
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.)
VACUDENT Manufacturing CO
Original Assignee
VACUDENT Manufacturing 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
Priority claimed from US144980A external-priority patent/US3147946A/en
Application filed by VACUDENT Manufacturing CO filed Critical VACUDENT Manufacturing CO
Publication of GB947849A publication Critical patent/GB947849A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/14—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats of asymmetrical shape
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/18—Chairs or stools with rotatable seat
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/30—Chairs or stools with vertically-adjustable seats with vertically-acting fluid cylinder
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/402—Support for the head or the back for the back adjustable in height
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/60—Supports for surgeons, e.g. chairs or hand supports

Abstract

947,849. Hydraulically adjustable seats. VACUDENT MANUFACTURING CO. Oct. 12, 1962 [Oct. 13, 1961 (2); July 3, 1962], No. 38738/62. Heading B8J. [Also in Division A4] A stool comprises a platform base 13, a seat 10, extendible and retractable post structure 11, 12 rising from the base centrally thereof and supporting the seat 10, power means for extending the post to raise the seat, means such as a valve 34 controlling operation of the power means, and means for actuating the control means, the actuating means having a foot-operated portion 44 at least partially surrounding the post structure 11, 12 above the surface of the base 13. The post structure consists of a post 11 and tube 12 which together form an hydraulic assembly. A sleeve 15 is secured to the upper end of the tube 12. As shown in Fig. 4, the footoperated part of the actuating means consists of a ring 44 encircling the post structure. The actuating means also consists of a lever comprising a pair of rods 45 depending slidably through the base 13 from the ring 44, a bearing ring 47 slidable along the lower end of the post structure (Fig. 5) and a working arm 48 projecting from the ring 47. The arm 48 is secured to another lever arm 49 provided as part of valve 34 and pivoted at 50 to operate a spring-loaded plunger 35. The valve 34 is opened by pressure on the ring 44. This permits entrapped compressed air in a reservoir 32 to expand and force hydraulic fluid from this reservoir 32 into tube 12 to raise the seat 10 when the user takes his weight off the seat. A non-return valve 37 prevents fluid flow in the cylinder-reservoir direction. A bleeder passage 51 provides for gradual return of fluid to the reservoir 32 and thus a gradual lowering of the seat under the weight of the user when pressure is applied to the foot ring 44. The post is made in two parts 11, 11-1 so that the seat 10 can be raised independently of the power system. An abdominal rest 17 is provided which may be adjusted vertically, horizontally and rotatably relatively to the seat 10 by means of members 23, 21 and 29 respectively.
GB38738/62A 1961-10-13 1962-10-12 Improvements in or relating to seating structures Expired GB947849A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US144980A US3147946A (en) 1961-10-13 1961-10-13 Utility stool
US144862A US3145053A (en) 1961-10-13 1961-10-13 Stool for dentists
US207209A US3179369A (en) 1961-10-13 1962-07-03 Power-operated utility stool

Publications (1)

Publication Number Publication Date
GB947849A true GB947849A (en) 1964-01-29

Family

ID=27386177

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38738/62A Expired GB947849A (en) 1961-10-13 1962-10-12 Improvements in or relating to seating structures

Country Status (5)

Country Link
US (2) US3145053A (en)
DE (1) DE1429442A1 (en)
FR (1) FR1335964A (en)
GB (1) GB947849A (en)
SE (1) SE324219B (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339873A (en) * 1965-10-21 1967-09-05 Dean H Hale Stool with vertically movable seat
US3342528A (en) * 1965-12-13 1967-09-19 Bostrom Corp Sidewardly adjustable seat back
US3466411A (en) * 1968-04-17 1969-09-09 Martin Brothers Electric Co Th Foot-operated switch
US3854772A (en) * 1973-05-25 1974-12-17 All Steel Inc Backrest height adjustment device for office furniture chairs
DE2630483A1 (en) * 1976-07-07 1978-01-12 Suspa Federungstech HEIGHT-ADJUSTABLE CHAIR OR TABLE BASE
US4195882A (en) * 1977-08-19 1980-04-01 Alexander C. Daswick Adjustable convertible furniture for supporting one or more persons
DE3635811A1 (en) * 1986-10-22 1988-05-05 Ver Spezialmoebel Verwalt Chair with a chair frame composed of profile sections
US4852941A (en) * 1988-07-22 1989-08-01 Midmark Corporation Adjustable debris tray assembly for podiatry chairs
US4896916A (en) * 1988-08-03 1990-01-30 Kaemark, Inc. Chair for cutting children's hair
IL97364A (en) * 1991-02-26 1994-07-31 Ramot Arie Chair
US5366275A (en) * 1993-06-16 1994-11-22 L & P Property Management Company Gas operated foot stool
US7025367B2 (en) * 2002-10-08 2006-04-11 Mckinnon Paul G Adjustable air cushion bicycle seat
US7090303B2 (en) * 2003-06-05 2006-08-15 William Kropa Rehabilitation training and exercise chair
US7922134B2 (en) * 2004-10-19 2011-04-12 Gasser Chair Company, Inc. Objects including gaming stools with an easy rolling support base
CA2664911C (en) * 2006-04-20 2014-09-02 Distribution Gablex Inc. Abdominal support swivel chair
US8651569B2 (en) 2010-09-07 2014-02-18 InkBed, Inc. Apparatus for support during tattooing
US9084486B1 (en) 2014-01-09 2015-07-21 InkBed, Inc. Tattoo stools and chairs and methods using the same
CN112932124A (en) 2014-01-09 2021-06-11 墨床有限公司 Stool, chair and method of using stool, chair
US10524573B2 (en) 2014-01-09 2020-01-07 InkBed, Inc. Stools, chairs, and methods using the same
CN104490552A (en) * 2015-01-06 2015-04-08 哈尔滨市海江科技开发有限公司 Medical clinical specimen transport rack
US10973332B2 (en) 2018-02-13 2021-04-13 InkBed, Inc. Chairs with adjustable back supports
WO2019161124A1 (en) 2018-02-14 2019-08-22 InkBed, Inc. Stools and chairs with translatable armrests
US20200121089A1 (en) * 2018-10-21 2020-04-23 Deborah June Mary Rucci Torso support chair
US11589678B2 (en) 2019-01-17 2023-02-28 Hni Technologies Inc. Chairs including flexible frames
US20240065444A1 (en) * 2022-08-23 2024-02-29 Godfrey Kigonya Posture-enforcing seat

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US597991A (en) * 1898-01-25 Swing
US1005542A (en) * 1911-03-23 1911-10-10 Ada Harmer Stand and gage for dress-fitters.
GB298795A (en) * 1927-11-17 1928-10-18 J W & C J Phillips Ltd Improvements in or relating to stands for tea-pots and the like
DE559853C (en) * 1931-05-07 1932-09-24 Anton Lorenz Seating made of curved, resilient material
US2136852A (en) * 1937-05-28 1938-11-15 Fifine O Knauth Adjustable chair
US2231631A (en) * 1938-11-10 1941-02-11 Maina Joseph Pneumatically counterbalanced support
US2218963A (en) * 1938-12-13 1940-10-22 Jay G Stephenson Fluid supported stool
US2244650A (en) * 1940-08-02 1941-06-03 James M Curran Chair for aerial tramways
US2400630A (en) * 1943-01-26 1946-05-21 Roy A Cramer Chair
US2620863A (en) * 1949-07-26 1952-12-09 John E Cooper Dental stool extension for feet and motor control support
US2780277A (en) * 1952-06-27 1957-02-05 Ritter Co Inc Vertically adjustable pedestal stool
DE1144891B (en) * 1954-06-18 1963-03-07 Mauser Kg Chair that can be used in different sitting directions
US2836080A (en) * 1955-05-12 1958-05-27 Bradley Waschfontaenen Foot control valve mechanism for washfountains
US2935120A (en) * 1956-07-05 1960-05-03 Glen L Naus Seat and backrest for a locomotive seat

Also Published As

Publication number Publication date
DE1429442A1 (en) 1969-05-22
US3179369A (en) 1965-04-20
US3145053A (en) 1964-08-18
SE324219B (en) 1970-05-25
FR1335964A (en) 1963-08-23

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