US3873153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Movable audience chair
Assignee: Individual
•
Filing: 1973-08-14
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Granted: 1975-03-25
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Expires: 1993-08-14
Abstract
Abstract An audience chair is movable between a seating position and a push-back position by means of link members interconnecting the seat bottom with a seat support. The link members are spaced, inclined forwardly and slightly inclined toward one another thereby permitting the chair to be moved initially upwardly and slightly rearwardly about the pivotal connections of the link members whereupon the seat bottom remains in a substantially horizontal position. The chair may continue to be moved rearwardly about such pivotal connections whereupon the seat bottom is placed in a downwardly inclined position.
Inventors
- 👤 Charles Mackintosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:34
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/002; A47C1/00; A47C1/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
235 words
An audience chair arrangement movable between a seating position and a pushed-back position, comprising: a seat bottom interconnected with a seat back; chair support means supporting the chair; a pair of spaced link members pivotally connected at one end thereof to said seat bottom and pivotally connected at the other end thereof to said support means, said link members being inclined toward the forward edge of said seat bottom and being slightly inclined toward each other in the seating position of the chair, said link members lying in planes intersecting forwardly and slightly upwardly of said forward edge, one of said link members being disposed forwardly of the other thereof toward said forward edge, and the length of said one link member between its ends being shorter than the length of said other link member between its ends; and said support means including a bracket plate on which a first of said link members rests for horizontally supporting said seat bottom in the seating position of the chair; whereby the chair is movable upwardly and rearwardly about said liNk member pivotal connections from its seating position to an intermediate position during which said seat bottom remains horizontal, and whereby the chair is further movable rearwardly about said link member pivotal connections from its intermediate position to its pushed-back position, said seat bottom gradually moving downwardly at its forward end between the intermediate and pushed-back positions.
Claim 2
Dependent Claim
235 words
An audience chair arrangement movable between a seating position and a pushed-back position, comprising: a seat bottom interconnected with a seat back; chair support means supporting the chair; a pair of spaced link members pivotally connected at one end thereof to said seat bottom and pivotally connected at the other end thereof to said support means, said link members being inclined toward the forward edge of said seat bottom and being slightly inclined toward each other in the seating position of the chair, said link members lying in planes intersecting forwardly and slightly upwardly of said forward edge, one of said link members being disposed forwardly of the other thereof toward said forward edge, and the length of said one link member between its ends being shorter than the length of said other link member between its ends; and said support means including a bracket plate on which a first of said link members rests for horizontally supporting said seat bottom in the seating position of the chair; whereby the chair is movable upwardly and rearwardly about said liNk member pivotal connections from its seating position to an intermediate position during which said seat bottom remains horizontal, and whereby the chair is further movable rearwardly about said link member pivotal connections from its intermediate position to its pushed-back position, said seat bottom gradually moving downwardly at its forward end between the intermediate and pushed-back positions.
Claim 3
Dependent Claim
47 words
The audience chair according to claim 1 further comprising spring means disposed between a first of said link members and said seat bottom for urging said link members and said seat bottom apart thereby facilitating easier upward movement of the chair between its seating and intermediate positions.
Claim 4
Dependent Claim
237 words
An audience chair arrangement movable between a seating position and a pushed-back position, comprising: a seat bottom interconnected with a seat back; chair support means supporting the chair; a pair of spaced link members pivotally connected at one end thereof to said seat bottom and pivotally connected at the other end thereof to said support means, said link members being inclined toward the forward edge of said seat bottom and being slightly inclined toward each other in the seating position of the chair, said link members lying in planes intersecting forwardly and slightly upwardly of said forward edge, one of said link members being disposed forwardly of the other thereof toward said forward edge, and the length of said one link member between its ends being shorter than the length of said other link member between its ends; and said support means including a support element secured to said other link member and on which said seat bottom rests for horizontally supporting it in the seating position of the chair; whereby the chair is movable upwardly and rearwardly about said link member pivotal connections from its seating position to an intermediate position during which said seat bottom remains horizontal, and whereby the chair is further movable rearwardly about said link member pivotal connections from its intermediate position to its pushed-back position, said seat bottom gradually moving downwardly at its forward end between the intermediate and pushed-back positions.
Claim 5
Dependent Claim
237 words
An audience chair arrangement movable between a seating position and a pushed-back position, comprising: a seat bottom interconnected with a seat back; chair support means supporting the chair; a pair of spaced link members pivotally connected at one end thereof to said seat bottom and pivotally connected at the other end thereof to said support means, said link members being inclined toward the forward edge of said seat bottom and being slightly inclined toward each other in the seating position of the chair, said link members lying in planes intersecting forwardly and slightly upwardly of said forward edge, one of said link members being disposed forwardly of the other thereof toward said forward edge, and the length of said one link member between its ends being shorter than the length of said other link member between its ends; and said support means including a support element secured to said other link member and on which said seat bottom rests for horizontally supporting it in the seating position of the chair; whereby the chair is movable upwardly and rearwardly about said link member pivotal connections from its seating position to an intermediate position during which said seat bottom remains horizontal, and whereby the chair is further movable rearwardly about said link member pivotal connections from its intermediate position to its pushed-back position, said seat bottom gradually moving downwardly at its forward end between the intermediate and pushed-back positions.
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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |