GB1439278A – Headrests
– Google Patents
GB1439278A – Headrests
– Google Patents
Headrests
Info
Publication number
GB1439278A
GB1439278A
GB4271473A
GB4271473A
GB1439278A
GB 1439278 A
GB1439278 A
GB 1439278A
GB 4271473 A
GB4271473 A
GB 4271473A
GB 4271473 A
GB4271473 A
GB 4271473A
GB 1439278 A
GB1439278 A
GB 1439278A
Authority
GB
United Kingdom
Prior art keywords
link
shafts
engagement
splines
sept
Prior art date
1972-09-11
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
GB4271473A
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.)
American Optical Corp
Original Assignee
American Optical 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.)
1972-09-11
Filing date
1973-09-11
Publication date
1976-06-16
1973-09-11
Application filed by American Optical Corp
filed
Critical
American Optical Corp
1976-06-16
Publication of GB1439278A
publication
Critical
patent/GB1439278A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
A47C7/38—Support for the head or the back for the head
A—HUMAN NECESSITIES
A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
A61G15/10—Parts, details or accessories
A61G15/12—Rests specially adapted therefor, e.g. for the head or feet
A61G15/125—Head-rests
Abstract
1439278 Adjustable head rests AMERICAN OPTICAL CORP 11 Sept 1973 [11 Sept 1972] 42714/73 Heading A4J An adjustable head rest comprises an arm 10 pivotally mounted on one end of a link 12 having its other end pivotally mounted on a bracket 15 adapted for attachment to a chair, the head rest being locked in the adjusted position by the engagement of teeth on the ends of two shafts 25 slidably mounted in the link 12 with splines on bearings 13, 14 forming the pivotal connections of the link with the arm and bracket. The teeth are moved into engagement with the splines by a manually rotatable cam 50 placed between the two shafts and biased out of engagement by two sprigs 30, (30′) Fig. 2 (not shown) connected between the shafts 25, and link 12.
GB4271473A
1972-09-11
1973-09-11
Headrests
Expired
GB1439278A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US28819672A
1972-09-11
1972-09-11
Publications (1)
Publication Number
Publication Date
GB1439278A
true
GB1439278A
(en)
1976-06-16
Family
ID=23106150
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4271473A
Expired
GB1439278A
(en)
1972-09-11
1973-09-11
Headrests
Country Status (8)
Country
Link
US
(1)
US3761128A
(en)
JP
(2)
JPS4968589A
(en)
CA
(1)
CA981175A
(en)
CH
(1)
CH555178A
(en)
DD
(1)
DD104428A5
(en)
DE
(1)
DE2326255A1
(en)
FR
(1)
FR2199258A5
(en)
GB
(1)
GB1439278A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4335920A
(en)
*
1979-08-09
1982-06-22
Sybron Corporation
Headrest for a dental chair
Families Citing this family (15)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3885831A
(en)
*
1974-01-24
1975-05-27
Keith O Rasmussen
Close-coupled articulating headrest
US4159093A
(en)
*
1978-05-26
1979-06-26
American Optical Corporation
Adjustable support for a headrest
JPH034263Y2
(en)
*
1987-09-28
1991-02-04
US5427436A
(en)
*
1994-05-26
1995-06-27
Lloyd; John T.
Adjustable headrest
US6397414B1
(en)
2000-06-21
2002-06-04
John T. Lloyd
Adjustable face rest
US7040705B2
(en)
*
2000-09-20
2006-05-09
Robert Clough
Seat headrest
US7055909B2
(en)
*
2004-06-22
2006-06-06
Comfordy Co., Ltd.
Structure of a chair pillow
US8037884B2
(en)
*
2006-10-02
2011-10-18
Allen Medical Systems, Inc.
Modular system for patient positioning during medical procedures
DE102007006045B4
(en)
*
2007-02-02
2009-02-12
Sirona Dental Systems Gmbh
Headrest assembly
US7832803B2
(en)
*
2007-04-17
2010-11-16
Terry Cassaday
Headrest linkage
US8641147B2
(en)
*
2007-06-29
2014-02-04
Midmark Corporation
Procedure chair with interchangeable headrests
DE102008008961A1
(en)
*
2008-02-13
2009-08-20
Interstuhl Büromöbel GmbH & Co. KG
Head and / or neck support
US7549704B1
(en)
*
2008-02-20
2009-06-23
Kuo-Ching Chou
Headrest adjusting structure for a seat
WO2010051303A1
(en)
2008-10-28
2010-05-06
Allen Medical Systems, Inc.
Prone and laterally angled surgical device and method
WO2010093360A1
(en)
*
2009-02-11
2010-08-19
Dental Equipment, Llc, Dba Pelton & Crane
Biarticulated headrest for chair
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2672917A
(en)
*
1950-05-19
1954-03-23
American Optical Corp
Adjustable chair
FR1334460A
(en)
*
1962-06-27
1963-08-09
Improvements to headrests adaptable to chairs or other devices used, in particular, in dentistry, medicine or surgery
US3572835A
(en)
*
1968-10-23
1971-03-30
Kees Surgical Specialty Co
Surgical head rest
JPS512348Y2
(en)
*
1971-04-20
1976-01-23
JPH03497U
(en)
*
1989-05-26
1991-01-07
1972
1972-09-11
US
US00288196A
patent/US3761128A/en
not_active
Expired – Lifetime
1973
1973-05-21
DE
DE2326255A
patent/DE2326255A1/en
active
Pending
1973-05-24
CH
CH746773A
patent/CH555178A/en
not_active
IP Right Cessation
1973-06-06
FR
FR7321564A
patent/FR2199258A5/fr
not_active
Expired
1973-06-06
CA
CA173,541A
patent/CA981175A/en
not_active
Expired
1973-06-28
DD
DD171911A
patent/DD104428A5/xx
unknown
1973-09-07
JP
JP48100418A
patent/JPS4968589A/ja
active
Pending
1973-09-11
GB
GB4271473A
patent/GB1439278A/en
not_active
Expired
1981
1981-05-08
JP
JP1981065726U
patent/JPS5748925U/ja
active
Pending
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4335920A
(en)
*
1979-08-09
1982-06-22
Sybron Corporation
Headrest for a dental chair
Also Published As
Publication number
Publication date
JPS5748925U
(en)
1982-03-19
CH555178A
(en)
1974-10-31
DD104428A5
(en)
1974-03-12
FR2199258A5
(en)
1974-04-05
US3761128A
(en)
1973-09-25
DE2326255A1
(en)
1974-03-21
JPS4968589A
(en)
1974-07-03
CA981175A
(en)
1976-01-06
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Improvements in and relating to an adjustable arm-chair
Legal Events
Date
Code
Title
Description
1976-10-27
PS
Patent sealed [section 19, patents act 1949]
1979-04-11
PCNP
Patent ceased through non-payment of renewal fee
