Patent US3580631A successfully refreshed from Google Patents.
US3580631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Invalid chair
Assignee: Lumex Inc
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Filing: 1969-02-10
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Granted: 1971-05-25
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Expires: 1989-02-10
Abstract
Abstract An invalid chair is disclosed which includes first and second frames between which is removably supported a seat assembly which is longitudinally slidable with respect to the side frames. The chair further includes a table tray which can be moved between a noninterfering or storage position with respect to bodily access to the seat, and a tablelike position by merely aligning a single arm fixed to the table with a a passageway within one of the chair arm rests. Additionally, a foot rest is slidably disposed beneath the seat assembly and movable between a storage position and a forward foot rest, where it is adapted to support an ottoman having bifurcated legs.
Inventors
- 👤 Charles E Murcott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:25
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
153 words
In a chair of the type wherein a seat means and a back means are fastened between a pair of side frame means and a table tray is adapted to move from a storage position alongside a first of said pair of side frame means to a tablelike position before an occupant of said chair, said table tray being detachably coupled to said first side frame means during both said storage and tablelike positions by a U-shaped swingable supporting element mounted to the underside of said table tray, the improvement comprising, a support element rigidly mounted to the underside of said table tray spaced from said U-shaped element and detachably coupled to said first side frame means in said storage position and adapted to engage a second of said pair of said frame means when said table tray is swung on said U-shaped supporting element from said storage position to said tablelike position.
Claim 2
Dependent Claim
153 words
In a chair of the type wherein a seat means and a back means are fastened between a pair of side frame means and a table tray is adapted to move from a storage position alongside a first of said pair of side frame means to a tablelike position before an occupant of said chair, said table tray being detachably coupled to said first side frame means during both said storage and tablelike positions by a U-shaped swingable supporting element mounted to the underside of said table tray, the improvement comprising, a support element rigidly mounted to the underside of said table tray spaced from said U-shaped element and detachably coupled to said first side frame means in said storage position and adapted to engage a second of said pair of said frame means when said table tray is swung on said U-shaped supporting element from said storage position to said tablelike position.
Claim 3
Dependent Claim
76 words
The chair as recited in claim 1 wherein said first side frame means includes a first and second hollow receiving means for telescopically receiving respectively one leg of said U-shaped element and said rigidly mounted table support element when said table tray is in said storage position, and said second side frame means include a single hollow receiving means for receiving said rigidly mounted table support element when said table tray is in said tablelike position.
Claim 4
Dependent Claim
29 words
The chair as recited in claim 2 wherein said leg of said U-shaped eLement received in said first hollow receiving means is longer than said rigidly mounted table-support element.
Claim 5
Dependent Claim
48 words
The chair as recited in claim 2 wherein each of said side frame means include an armrest and wherein the armrest on said first side frame means includes said second hollow receiving means and said armrest on said second side frame means includes said single hollow receiving means.
Claim 6
Dependent Claim
22 words
The chair as recited in claim 1 wherein said seat means is removably connected to said first and second side frame means.
Claim 7
Dependent Claim
22 words
The chair as recited in claim 1 wherein said back means is removably connected to said first and second side frame means.
Claim 8
Dependent Claim
34 words
The chair as recited in claim 1 wherein said seat means comprises a rigid seat support base and a seat portion slidably mounted with respect to said seat support base and said back means.
Claim 9
Dependent Claim
75 words
The chair as recited in claim 7 wherein said rigid seat support base includes at least two spaced-apart rigid bars each connected on respective opposite ends thereof to said first and second side frame means, and said seat portion includes at least one depending bracket which is adapted to loosely sandwich at least one of said rigid bars to said seat portion whereby said seat may slidably travel between the longitudinal ends of said bracket.
Claim 10
Dependent Claim
49 words
The chair as recited in claim 8 further including at least one pair of stop means secured in one of said rigid bars at opposite lateral sides of said depending bracket whereby said depending bracket is sandwiched between said stop means to prevent lateral displacement of said seat portion.
Claim 11
Dependent Claim
41 words
The chair as recited in claim 9 wherein said stop means are adjustable to clamp said depending bracket against one of said rigid bars whereby said seat portion is prevented from moving with respect to said back and side frame means.
Claim 12
Dependent Claim
49 words
The chair as recited in claim 7 further including track means fastened to said seat portion and adapted to slide on said rigid bars when an occupant of said chair desires to change the position of said seat portion with respect to said back means and side frame means.
Claim 13
Dependent Claim
117 words
The chair as recited in claim 1 further including a footrest assembly having at least a first and a second rigid bar between which is supported a foot support platform and wherein said first and second side frame means each include lower hollow receiving means, said first and second rigid bars of said footrest assembly being telescopically and slidably received by said lower hollow receiving means of said first and second side frame means; and further including ottoman means having a cushioned portion and plurality of depending legs each terminating in a bifurcated attaching member, said bifurcated attaching member adapted to frictionally secure said depending legs to said first and second rigid bars of said footrest assembly.
Claim 14
Dependent Claim
97 words
In a chair of the type wherein a seat means and a back means are fastened between a pair of side frame means, the improvement comprising, a rigid seat support base having at least two spaced-apart rigid bars each adapted to have their respective opposite ends coupled to each of said side frame means, and wherein said seat means includes at least one depending bracket which is adapted to loosely sandwich at least one of said rigid bars to said seat means whereby said seat means may slidably travel longitudinally between the ends of the said bracket.
Claim 15
Dependent Claim
97 words
In a chair of the type wherein a seat means and a back means are fastened between a pair of side frame means, the improvement comprising, a rigid seat support base having at least two spaced-apart rigid bars each adapted to have their respective opposite ends coupled to each of said side frame means, and wherein said seat means includes at least one depending bracket which is adapted to loosely sandwich at least one of said rigid bars to said seat means whereby said seat means may slidably travel longitudinally between the ends of the said bracket.
Claim 16
Dependent Claim
49 words
The chair as recited in claim 13 further including at least one pair of stop means secured in one of said rigid bars at opposite lateral sides of said depending bracket whereby said depending bracket is sandwiched between said stop means to prevent lateral displacement of said seat means.
Claim 17
Dependent Claim
41 words
The chair as recited in claim 14 wherein said stop means are adjustable to clamp said depending bracket against one of said rigid bars whereby said seat means is prevented from moving with respect to said back and side frame means.
Claim 18
Dependent Claim
49 words
The chair as recited in claim 13 further including track means fastened to Said seat means and adapted to slide on said rigid bars when an occupant of said chair desires to change the position of said seat means with respect to said back means and side frame means.
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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |