US4902072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair with pivotal arm extension
Assignee: Tela Flynt Chancellor
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Filing: 1989-03-15
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Granted: 1990-02-20
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Expires: 2009-03-15
Abstract
Abstract A chair of the type having a pivotal armrest or armrests in which an extension is provided at the end of the pivotal armrest that is attached to the chair back with the extension being substantially perpendicular to the armrest and extending downwardly when the armrest is in a horizontal operative position. When the armrest of the chair is pivoted upwardly to a position alongside the side edge of the back of the chair, the extension on the armrest is oriented in generally a horizontal position. The extension is substantially shorter than the armrest to provide a short armrest for the elbow area of the arm thereby enabling the chair having a pivotal armrest or armrests to be utilized in the normal manner so that the armrest can be pivoted upwardly to an out of the way position alongside the chair back when it is desired to gain access to a desk drawer or the like with the extension providing a support for the elbow area of the arm even when the armrest is pivoted upwardly to the stored or out of the way position.
Inventors
- 👤 Charles W. Chancellor, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:37
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/54; A47C7/543
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
272 words
In an office chair having a seat and backrest supported in rigid relation to each other, a pair of armrests mounted in cantilever fashion on the chair backrest, means pivotally mounting at least one of the armrests from the backrest for movement between an operative generally horizontal position spaced in parallel relation above the seat of the chair to a generally vertical inoperative stored position alongside the side edge of the chair backrest with the end of the armrest remote from the pivotal mounting means being disposed above the pivotal mounting means, the improvement comprising an extension on the end of the pivotal armrest adjacent the pivotal mounting means, said extention being relatively short as compared to the length of the pivotal armrest, being rigid therewith and being generally perpendicular thereto for movement between a generally vertical inoperative position depending from the armrest when the armrest is in said operative position to a generally horizontal operative position extending forwardly from the backrest in cantilever fashion in generally spaced parallel relation above the seat when the armrest is moved to said inoperative stored position to provide a support for the elbow region of an arm forwardly of the backrest while enabling lateral access to be had to a desk driver drawer or other area from the side edge of the chair seat and backrest of the chair with the upwardly extending armrest limiting rearward movement of the elbow region on the extension, said means pivotally mounting the armrest and extension to the side edge of the chair backrest including means positively and releasably retaining the armrest and extension in both of their positions.
Claim 2
Dependent Claim
272 words
In an office chair having a seat and backrest supported in rigid relation to each other, a pair of armrests mounted in cantilever fashion on the chair backrest, means pivotally mounting at least one of the armrests from the backrest for movement between an operative generally horizontal position spaced in parallel relation above the seat of the chair to a generally vertical inoperative stored position alongside the side edge of the chair backrest with the end of the armrest remote from the pivotal mounting means being disposed above the pivotal mounting means, the improvement comprising an extension on the end of the pivotal armrest adjacent the pivotal mounting means, said extention being relatively short as compared to the length of the pivotal armrest, being rigid therewith and being generally perpendicular thereto for movement between a generally vertical inoperative position depending from the armrest when the armrest is in said operative position to a generally horizontal operative position extending forwardly from the backrest in cantilever fashion in generally spaced parallel relation above the seat when the armrest is moved to said inoperative stored position to provide a support for the elbow region of an arm forwardly of the backrest while enabling lateral access to be had to a desk driver drawer or other area from the side edge of the chair seat and backrest of the chair with the upwardly extending armrest limiting rearward movement of the elbow region on the extension, said means pivotally mounting the armrest and extension to the side edge of the chair backrest including means positively and releasably retaining the armrest and extension in both of their positions.
Claim 3
Dependent Claim
233 words
In combination with a pivotal armrest mounted on the backrest of a chair and extending forwardly from the backrest when in operative generally horizontal position with the forward end of the armrest being free for upward swinging movement to an inoperative position alongside the backrest, an extension in rigid, substantially perpendicular relation to the end of the armrest pivotally connected to the chair backrest for movement to a generally horizontal operative position projecting forwardly from the armrest when the armrest is pivoted upwardly to said inoperative position with the extension being substantially shorter than the armrest to provide a support extending forwardly from the armrest and backrest in cantilever fashion for supporting the elbow and adjacent region of the forearm when the extension is in the horizontal operative position thereby enabling an occupant of the chair to reach laterally from the chair in relation to the armrest and backrest while providing a support surface on the upper surface of the extension for the elbow and adjacent region of the forearm with the upwardly extending armrest limiting rearward movement of the elbow on the support surface, said extension also enabling a person occupying the chair to swing laterally from the chair seat when desired with the length of the extension being sufficiently short to enable a person to swing laterally in relation to the chair seat and backrest to which the armrest is connected.
Claim 4
Dependent Claim
233 words
In combination with a pivotal armrest mounted on the backrest of a chair and extending forwardly from the backrest when in operative generally horizontal position with the forward end of the armrest being free for upward swinging movement to an inoperative position alongside the backrest, an extension in rigid, substantially perpendicular relation to the end of the armrest pivotally connected to the chair backrest for movement to a generally horizontal operative position projecting forwardly from the armrest when the armrest is pivoted upwardly to said inoperative position with the extension being substantially shorter than the armrest to provide a support extending forwardly from the armrest and backrest in cantilever fashion for supporting the elbow and adjacent region of the forearm when the extension is in the horizontal operative position thereby enabling an occupant of the chair to reach laterally from the chair in relation to the armrest and backrest while providing a support surface on the upper surface of the extension for the elbow and adjacent region of the forearm with the upwardly extending armrest limiting rearward movement of the elbow on the support surface, said extension also enabling a person occupying the chair to swing laterally from the chair seat when desired with the length of the extension being sufficiently short to enable a person to swing laterally in relation to the chair seat and backrest to which the armrest is connected.
Claim 5
Dependent Claim
28 words
The structure as defined in claim 2 wherein said pivotal armrest and backrest includes a positive lock means to retain the armrest and the extension in both 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) | 1993-02-19 | 1993-08-21 | 1994-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-19 | 1997-08-21 | 1998-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-19 | 2001-08-21 | 2002-02-20 | $7700.00 | Window Closed / Lapsed |