US7125080B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable armrest for chair
Assignee: Electric Mobility Corp
•
Filing: 2002-10-23
•
Granted: 2006-10-24
•
Expires: 2022-10-23
Abstract
Abstract A retractable armrest is disclosed for a foldable chair. The chair has a seat and a backrest with the backrest being pivotably mounted to the seat by a chair pivot for movement between an operating position and a folded position. A link pivotably operates between armrest and the seat for enabling the armrest to be rotated into the retracted position when the backrest is in the operating position. The link rotates the armrest from the extended position to the retracted position upon the backrest being moved from the operating position to the folded position. The foldable chair is suitable for use on a personal mobility vehicle such as a scooter, a power wheel chair, a foldable personal mobility vehicle or any other suitable chair.
Inventors
- 👤 Stephen Jarema, III
- 👤 Edward J. Dwyer, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:35
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/24; B60N2/30; B60N2/3002; B60N2/3004; B60N2/3009; B60N2/3011; A; A61; A61G; A61G5/00; A61G5/10; A61G5/12; A61G5/125; B60N2/3038; B60N2/3063; B60N2/3065; B60N2/3088; B60N2/309; B60N2/75; B60N2/753
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
260 words
A foldable chair comprising a seat and a backrest, the seat having a front end and a back end with the backrest having a lower end and an upper end and with a chair pivot pivotably mounting the lower end of the backrest to the back end of the seat for enabling the backrest to be pivoted between an operating position and a folded position, the improvement comprising: an armrest having a first and a second end; an armrest pivot for pivoting said armrest relative to the backrest; said armrest pivot located between said first and second ends of said armrest for pivotably mounting said armrest for rotational movement between an extended position and a retracted position; said armrest pivot positioned between the lower end and the upper end of the backrest; a first pivot located on said armrest and positioned closer to said first end of said armrest than said armrest pivot; said second end of said armrest providing an arm support for an occupant of the chair; a second pivot located on the seat and positioned closer to said back end of the seat than the chair pivot; a link operating between said first pivot and said second pivot for enabling said armrest to be rotated independently on said armrest pivot between said extended position and said retracted position when said backrest is in the operating position; and said link rotating said armrest on said armrest pivot from said extended position to said retracted position when the backrest is moved from the operating position to the folded position.
Claim 2
Dependent Claim
260 words
A foldable chair comprising a seat and a backrest, the seat having a front end and a back end with the backrest having a lower end and an upper end and with a chair pivot pivotably mounting the lower end of the backrest to the back end of the seat for enabling the backrest to be pivoted between an operating position and a folded position, the improvement comprising: an armrest having a first and a second end; an armrest pivot for pivoting said armrest relative to the backrest; said armrest pivot located between said first and second ends of said armrest for pivotably mounting said armrest for rotational movement between an extended position and a retracted position; said armrest pivot positioned between the lower end and the upper end of the backrest; a first pivot located on said armrest and positioned closer to said first end of said armrest than said armrest pivot; said second end of said armrest providing an arm support for an occupant of the chair; a second pivot located on the seat and positioned closer to said back end of the seat than the chair pivot; a link operating between said first pivot and said second pivot for enabling said armrest to be rotated independently on said armrest pivot between said extended position and said retracted position when said backrest is in the operating position; and said link rotating said armrest on said armrest pivot from said extended position to said retracted position when the backrest is moved from the operating position to the folded position.
Claim 3
Dependent Claim
21 words
A foldable chair as set forth in claim 1 , wherein the foldable chair is located on a personal mobility vehicle.
Claim 4
Dependent Claim
23 words
A foldable chair as set forth in claim 1 , wherein the foldable chair is located on a scooter type personal mobility vehicle.
Claim 5
Dependent Claim
25 words
A foldable chair as set forth in claim 1 , wherein the foldable chair is located on a power wheel chair type personal mobility vehicle.
Claim 6
Dependent Claim
21 words
A foldable chair as set forth in claim 1 , wherein the foldable chair is located on a power wheel chair.
Claim 7
Dependent Claim
38 words
A foldable chair as set forth in claim 1 , wherein said link extends between a first and a second end; and said first and second pivots pivotably connected to said first and second ends of said link.
Claim 8
Dependent Claim
341 words
A foldable chair comprising a seat and a backrest, the seat having a front end and a back end with the backrest having a lower end and an upper end and with a chair pivot pivotably mounting the lower end of the backrest to the back end of the seat for enabling the backrest to be pivoted between an operating position and a folded position, the improvement comprising: an armrest having a first and a second end; an armrest pivot for pivoting said armrest relative to the backrest; said armrest pivot located between said first and second ends of said armrest for pivotably mounting said armrest for rotational movement between an extended position and a retracted position; said armrest pivot positioned between the lower end and the upper end of the backrest; a first pivot located on said armrest and positioned closer to said first end of said armrest than said armrest pivot; said second end of said armrest providing an arm support for an occupant of the chair; a second pivot located on the seat and positioned closer to said back end of the seat than the chair pivot; a link operating between said first pivot and said second pivot for enabling said armrest to be rotated independently on said armrest pivot into said retracted position when said backrest is in the operating position; said link having a first and a second end; a link aperture located in one of said first and second ends of said link; a link slot located in the other of said first and second ends of said link; said first pivot pivotably connecting one of said link aperture and said link slot for pivotably connecting said link to said armrest; said second pivot pivotably connecting the other of said link aperture and said link slot for pivotably connecting said link to the seat; and said link rotating said armrest on said armrest pivot from said extended position to said retracted position when the backrest is moved from the operating position to the folded position.
Claim 9
Dependent Claim
341 words
A foldable chair comprising a seat and a backrest, the seat having a front end and a back end with the backrest having a lower end and an upper end and with a chair pivot pivotably mounting the lower end of the backrest to the back end of the seat for enabling the backrest to be pivoted between an operating position and a folded position, the improvement comprising: an armrest having a first and a second end; an armrest pivot for pivoting said armrest relative to the backrest; said armrest pivot located between said first and second ends of said armrest for pivotably mounting said armrest for rotational movement between an extended position and a retracted position; said armrest pivot positioned between the lower end and the upper end of the backrest; a first pivot located on said armrest and positioned closer to said first end of said armrest than said armrest pivot; said second end of said armrest providing an arm support for an occupant of the chair; a second pivot located on the seat and positioned closer to said back end of the seat than the chair pivot; a link operating between said first pivot and said second pivot for enabling said armrest to be rotated independently on said armrest pivot into said retracted position when said backrest is in the operating position; said link having a first and a second end; a link aperture located in one of said first and second ends of said link; a link slot located in the other of said first and second ends of said link; said first pivot pivotably connecting one of said link aperture and said link slot for pivotably connecting said link to said armrest; said second pivot pivotably connecting the other of said link aperture and said link slot for pivotably connecting said link to the seat; and said link rotating said armrest on said armrest pivot from said extended position to said retracted position when the backrest is moved from the operating position to the folded position.
Claim 10
Dependent Claim
64 words
A foldable chair as set forth in claim 1 , wherein said link extends between a first and a second end; a link aperture located in said first end of said link; a link slot located in said second end of said link; said first pivot being pivotably connected to said link aperture; and said second pivot being pivotably connected to said link slot.
Claim 11
Dependent Claim
15 words
A foldable chair as set forth in claim 1 , wherein said link is flexible.
Claim 12
Dependent Claim
40 words
A foldable chair as set forth in claim 1 , wherein said chair pivot and said second pivot are fixed relative to said seat of the chair; and said first pivot being moveable relative to said seat of the chair.
Claim 13
Dependent Claim
318 words
A foldable chair of a personal mobility vehicle, the chair comprising a seat and a backrest, the seat having a front end and a back end with the backrest having a lower end and an upper end and with a chair pivot pivotably mounting the lower end of the backrest to the back end of the seat for enabling the backrest to be pivoted between an operating position whereat the backrest is in a position generally perpendicular to the seat and a folded position whereat the backrest is in a position generally parallel to the seat, the improvement comprising: an armrest having a first and a second end; an armrest pivot for pivoting said armrest relative to the backrest; said armrest pivot located between said first and second ends of said armrest for mounting said armrest to the backrest for rotating said armrest between an extended position whereat said armrest is located generally perpendicular to the backrest and a retracted position whereat said armrest is located generally parallel to the backrest; said armrest pivot positioned between the lower end and an upper end of the backrest; said second end of said armrest providing an arm support for an occupant of the chair; a first pivot located at said first end of said armrest and positioned closer to said first end of said armrest than said armrest pivot; a second pivot located on the seat and positioned closer to said back end of the seat than the chair pivot; a link operating between said first pivot and said second pivot for enabling said armrest to be rotated independently on said armrest pivot between said extended position and said retracted position when said backrest is in the operating position; and said link rotating said armrest on said armrest pivot from said extended position to said retracted position when the backrest being moved from the operating position to the folded position.
Claim 14
Dependent Claim
318 words
A foldable chair of a personal mobility vehicle, the chair comprising a seat and a backrest, the seat having a front end and a back end with the backrest having a lower end and an upper end and with a chair pivot pivotably mounting the lower end of the backrest to the back end of the seat for enabling the backrest to be pivoted between an operating position whereat the backrest is in a position generally perpendicular to the seat and a folded position whereat the backrest is in a position generally parallel to the seat, the improvement comprising: an armrest having a first and a second end; an armrest pivot for pivoting said armrest relative to the backrest; said armrest pivot located between said first and second ends of said armrest for mounting said armrest to the backrest for rotating said armrest between an extended position whereat said armrest is located generally perpendicular to the backrest and a retracted position whereat said armrest is located generally parallel to the backrest; said armrest pivot positioned between the lower end and an upper end of the backrest; said second end of said armrest providing an arm support for an occupant of the chair; a first pivot located at said first end of said armrest and positioned closer to said first end of said armrest than said armrest pivot; a second pivot located on the seat and positioned closer to said back end of the seat than the chair pivot; a link operating between said first pivot and said second pivot for enabling said armrest to be rotated independently on said armrest pivot between said extended position and said retracted position when said backrest is in the operating position; and said link rotating said armrest on said armrest pivot from said extended position to said retracted position when the backrest being moved from the operating position to the folded position.
Claim 15
Dependent Claim
18 words
A foldable chair as set forth in claim 11 , wherein the personal mobility vehicle is a scooter.
Claim 16
Dependent Claim
20 words
A foldable chair as set forth in claim 11 , wherein the personal mobility vehicle is a power wheel chair.
Claim 17
Dependent Claim
21 words
A foldable chair as set forth in claim 11 , wherein the personal mobility vehicle is a foldable personal mobility vehicle.
Claim 18
Dependent Claim
25 words
A foldable chair as set forth in claim 11 , wherein said armrest pivot is located between said first and second end of said armrest.
Claim 19
Dependent Claim
30 words
A foldable chair as set forth in claim 11 , wherein said armrest pivot is located in closer proximity to said first end than said second end of said armrest.
Claim 20
Dependent Claim
364 words
A foldable chair of a personal mobility vehicle, the chair comprising a seat and a backrest, the seat having a front end and a back end with the backrest having a lower end and an upper end and with a chair pivot pivotably mounting the lower end of the backrest to the back end of the seat for enabling the backrest to be pivoted between an operating position whereat the backrest is in a position generally perpendicular to the seat and a folded position whereat the backrest is in a position generally parallel to the seat, the improvement comprising: an armrest having a first and a second end; an armrest pivot for pivoting said armrest relative to the backrest; said armrest pivot located between said first and second ends of said armrest for mounting said armrest to the backrest for rotating said armrest between an extended position whereat said armrest is located generally perpendicular to the backrest and a retracted position whereat said armrest is located generally parallel to the backrest; said second end of said armrest providing an arm support for an occupant of the chair; said armrest pivot positioned between the lower end and an upper end of the backrest; a first pivot located at said first end of said armrest and positioned closer to said first end of said armrest than said armrest pivot; a second pivot located on the seat and positioned closer to said back end of the seat than the chair pivot; a link having a first and a second end; a link aperture located in said first end of said link and a link slot located in said second end of said link; said first and second pivots pivotably connected to said link aperture and said link slot of said link; said link operating between said first pivot and said second pivot for enabling said armrest to be rotated independently on said armrest pivot into said retracted position when said backrest is in the operating position; and said link rotating said armrest on said armrest pivot from said extended position to said retracted position when the backrest being moved from the operating position to the folded position.
Claim 21
Dependent Claim
364 words
A foldable chair of a personal mobility vehicle, the chair comprising a seat and a backrest, the seat having a front end and a back end with the backrest having a lower end and an upper end and with a chair pivot pivotably mounting the lower end of the backrest to the back end of the seat for enabling the backrest to be pivoted between an operating position whereat the backrest is in a position generally perpendicular to the seat and a folded position whereat the backrest is in a position generally parallel to the seat, the improvement comprising: an armrest having a first and a second end; an armrest pivot for pivoting said armrest relative to the backrest; said armrest pivot located between said first and second ends of said armrest for mounting said armrest to the backrest for rotating said armrest between an extended position whereat said armrest is located generally perpendicular to the backrest and a retracted position whereat said armrest is located generally parallel to the backrest; said second end of said armrest providing an arm support for an occupant of the chair; said armrest pivot positioned between the lower end and an upper end of the backrest; a first pivot located at said first end of said armrest and positioned closer to said first end of said armrest than said armrest pivot; a second pivot located on the seat and positioned closer to said back end of the seat than the chair pivot; a link having a first and a second end; a link aperture located in said first end of said link and a link slot located in said second end of said link; said first and second pivots pivotably connected to said link aperture and said link slot of said link; said link operating between said first pivot and said second pivot for enabling said armrest to be rotated independently on said armrest pivot into said retracted position when said backrest is in the operating position; and said link rotating said armrest on said armrest pivot from said extended position to said retracted position when the backrest being moved from the operating position to the folded position.
Claim 22
Dependent Claim
73 words
A foldable chair as set forth in claim 11 , wherein said link extends between a first and a second end; a link aperture located in one of said first and second ends of said link; a link slot located in the other of said first and second ends of said link; said first pivot being pivotably connected to said link aperture; and said second pivot being pivotably connected to said link slot.
Claim 23
Dependent Claim
64 words
A foldable chair as set forth in claim 11 , wherein said link extends between a first and a second end; a link aperture located in said first end of said link; a link slot located in said second end of said link; said first pivot being pivotably connected to said link aperture; and said second pivot being pivotably connected to said link slot.
Claim 24
Dependent Claim
33 words
A foldable chair as set forth in claim 11 , wherein said first pivot extends outwardly from said first end of said armrest; and said second pivot extending outwardly from said the seat.
Claim 25
Dependent Claim
15 words
A foldable chair as set forth in claim 11 , wherein said link is flexible.
References Cited (Backward Citations)
US333321A
Cited
US792566A
Cited
US1104615A
Cited
US1420924A
Cited
US1997767A
Cited
US1953855A
Cited
US2085836A
Cited
US2480812A
Cited
US3004619A
Cited
US3025106A
Cited
US3213957A
Cited
US3369629A
Cited
US3580348A
Cited
US4010499A
Cited
US4026573A
Cited
US4073538A
Cited
US4067613A
Cited
US4400033A
Cited
JPS56112332A
Cited
US4351562A
Cited
US4466664A
Cited
US4432561A
Cited
JPS58224818A
Cited
US4549629A
Cited
US4496190A
Cited
US4573549A
Cited
US4570739A
Cited
US4570739B1
Cited
DE3539258A1
Cited
US4621864A
Cited
US4825971A
Cited
US4750578A
Cited
US4947955A
Cited
US4909525A
Cited
US5036938A
Cited
US5020624A
Cited
US5238082A
Cited
US5150762A
Cited
US5277267A
Cited
US5328238A
Cited
USRE37043E1
Cited
US5275465A
Cited
US5265695A
Cited
US5395160A
Cited
US5366276A
Cited
US5312126A
Cited
US5695021A
Cited
US6186252B1
Cited
US6183002B1
Cited
US5950755A
Cited
US6176337B1
Cited
US5823624A
Cited
US6003947A
Cited
US6076890A
Cited
US5979921A
Cited
US6047444A
Cited
US6220616B1
Cited
US6361114B1
Cited
US6428103B1
Cited
US6776457B2
Cited
US6739669B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-10-23 | 2010-04-24 | 2010-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-10-23 | 2014-04-24 | 2014-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-10-23 | 2018-04-24 | 2018-10-24 | $7700.00 | Window Closed / Lapsed |