US4938534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair with independently collapsible armrest and method of operation
Assignee: Individual
•
Filing: 1989-06-21
•
Granted: 1990-07-03
•
Expires: 2009-06-21
Abstract
Abstract A chair seat is provided with track means and the arm support strut with sliding means for retraction of the armrests from one extended position when the armrests are in use, to one collapsed position conveniently and aesthetically out of the way when the armrests are not in use or to permit easier user access and chair mobility.
Inventors
- 👤 Marta Tornero
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:39
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/54; A47C7/543
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
175 words
In a chair comprising a seat; a back positioned at the rear of said seat; an independent armrest at each side of the seat having a rear end movably connected to and supported by said back; and an arm support strut having an upper end movably connected to the forward end of said armrest and having a lower end movably connected to said seat, the improvement comprising: a track provided on each side of the seat for movable engagement of the lower end of each arm support strut, each of said armrests being independently movable from the other while the back and seat remain fixed and having a generally horizontal support position above the seat wherein the strut supports the forward end of the armrest and the back supports the rear end of the armrest, and each of said armrests having a collapsed position wherein the armrest is in a generally vertical position aligned with the edge of the back and said strut is in a generally horizontal position adjacent the edge of said seat.
Claim 2
Dependent Claim
175 words
In a chair comprising a seat; a back positioned at the rear of said seat; an independent armrest at each side of the seat having a rear end movably connected to and supported by said back; and an arm support strut having an upper end movably connected to the forward end of said armrest and having a lower end movably connected to said seat, the improvement comprising: a track provided on each side of the seat for movable engagement of the lower end of each arm support strut, each of said armrests being independently movable from the other while the back and seat remain fixed and having a generally horizontal support position above the seat wherein the strut supports the forward end of the armrest and the back supports the rear end of the armrest, and each of said armrests having a collapsed position wherein the armrest is in a generally vertical position aligned with the edge of the back and said strut is in a generally horizontal position adjacent the edge of said seat.
Claim 3
Dependent Claim
18 words
The chair of claim 1, wherein the upper ends of said struts are pivotally connected to said armrests.
Claim 4
Dependent Claim
30 words
The chair of claim 1, wherein the upper ends of said struts are pivotally connected to said armrest, and the rear of said armrest are pivotally connected to said back.
Claim 5
Dependent Claim
20 words
The chair of claim 1, wherein said arm support strut lower ends includes means for slidably moving along said tracks.
Claim 6
Dependent Claim
58 words
The chair of claim 1, wherein each of said tracks define a limit slot for preventing horizontal displacement of said arm support strut lower end when the armrest is in an extended position but allowing manual disengagement of said arm support strut lower end from said limit slot for moving said armrest to a collapsed position and viceversa.
Claim 7
Dependent Claim
17 words
The chair of claim 1 wherein said armrests are about equal in length to said support struts.
Claim 8
Dependent Claim
129 words
In a method of moving a chair armrest from a raised generally horizontal position adated to support a chair occupant's arm, to a collapsed position, the armrest hingedly joined to a support strut movably positioned in a track having a limit slot along the chair seat, while maintaining the chair seat and back in a fixed posture the steps comprising: sliding the arm support strut lower end out of the limit slot and along the track to a forward position thereby obtaining a substantially straight alignment between the arm and the support strut and thereafter moving said support strut rearwardly and downwardly to achieve a vertical position of said armrest relative to said back and to position said support strut in a horizontal position relative to said seat edge.
Claim 9
Dependent Claim
129 words
In a method of moving a chair armrest from a raised generally horizontal position adated to support a chair occupant's arm, to a collapsed position, the armrest hingedly joined to a support strut movably positioned in a track having a limit slot along the chair seat, while maintaining the chair seat and back in a fixed posture the steps comprising: sliding the arm support strut lower end out of the limit slot and along the track to a forward position thereby obtaining a substantially straight alignment between the arm and the support strut and thereafter moving said support strut rearwardly and downwardly to achieve a vertical position of said armrest relative to said back and to position said support strut in a horizontal position relative to said seat edge.
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) | 1993-07-02 | 1994-01-01 | 1994-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-02 | 1998-01-01 | 1998-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-02 | 2002-01-01 | 2002-07-03 | $7700.00 | Window Closed / Lapsed |