Patent US3784715A successfully refreshed from Google Patents.
US3572831A
Expired / Lapsed
US
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Assignee: American Seating Co
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Filing: 1969-04-21
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Granted: 1971-03-30
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Expires: 1989-04-21
Abstract
Abstract A planetarium chair convertible to a lecture room chair which includes a chair having a back and seat mounted on a pedestal wherein the chair can both swivel and tilt, the chair being equipped with a headrest with means interconnecting the chair back and headrest for moving the headrest from a head-supporting position to a stowed position.
Inventors
- 👤 Chester J Barecki
- 👤 Arthur J Hogan Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:02
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/38; A47C3/00; A47C3/02; A47C3/025; A47C3/026
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
93 words
A headrest equipped seating unit comprising a chair having a back portion, a support frame on saId back portion, a pair of relatively elongated tubes slidably supported in said support frame and adapted to project above said chair portion, a headrest equipped with a pair of brackets extending therefrom, said brackets being pivotally interconnected to said tubes, first latch means interposed between said brackets and tubes for fixing said headrest in head-supporting and stowed positions, and second latch means interposed between said support frame and post for maintaining said tubes in projected condition.
Claim 2
Dependent Claim
93 words
A headrest equipped seating unit comprising a chair having a back portion, a support frame on saId back portion, a pair of relatively elongated tubes slidably supported in said support frame and adapted to project above said chair portion, a headrest equipped with a pair of brackets extending therefrom, said brackets being pivotally interconnected to said tubes, first latch means interposed between said brackets and tubes for fixing said headrest in head-supporting and stowed positions, and second latch means interposed between said support frame and post for maintaining said tubes in projected condition.
Claim 3
Dependent Claim
52 words
The unit of claim 1 in which each of said brackets is equipped with slots, said tubes being equipped with pins received in said slots to provide the pivotal interconnection therebetween, each tube being equipped with a latch pin for engagement with recesses on said brackets to constitute said first latch means.
Claim 4
Dependent Claim
63 words
The unit of claim 1 in which said second latch means comprises a notch in each of said tubes, latching elements on said frame for engagement with said notches, said support frame being equipped with elongated openings for receiving said tubes whereby said tubes are movable to disengage said latching element from said notches, spring means urging said tubes into latch element contact.
Claim 5
Dependent Claim
28 words
The unit of claim 3 in which said support frame is equipped with a pair of bushings slidably mounted in said elongated openings and ensleeved about said tubes.
Claim 6
Dependent Claim
73 words
A headrest equipped seating unit, comprising a chair having a back portion, a support frame on said back portion, a post slidably carried by said support frame, a headrest equipped with a bracket extending therefrom, said bracket being pivotally interconnected to said post for movement to a head-supporting position and to a stowed position, and latch means on said bracket, post and support frame for fixing said headrest in head-supporting and stowed positions.
Claim 7
Dependent Claim
73 words
A headrest equipped seating unit, comprising a chair having a back portion, a support frame on said back portion, a post slidably carried by said support frame, a headrest equipped with a bracket extending therefrom, said bracket being pivotally interconnected to said post for movement to a head-supporting position and to a stowed position, and latch means on said bracket, post and support frame for fixing said headrest in head-supporting and stowed positions.
Claim 8
Dependent Claim
32 words
The structure of claim 5 in which said chair is provided with a base on which it is rotatably mounted and with spring means for rotating the chair to a predetermined position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |