US3987504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knee comfort
Assignee: Lawrence Peska Associates Inc
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Filing: 1975-07-21
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Granted: 1976-10-26
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Expires: 1995-07-21
Abstract
Abstract An adjustable cot is disclosed having an adjustable knee comfort device which comprises a folding planar surface extending in the same direction as the leg supporting portion of the cot and intermediate the ends of the leg supporting portion whereby the knee comfort device is adjusted from a planar configuration to an upwardly projecting configuration substantially in the area of the leg supporting portion of the cot that provides support for the section of the leg under the knee.
Inventors
- 👤 Roslyn Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:31
CPC Classifications
A; A47; A47C; A47C20/00; A47C20/04; A47C20/043
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
227 words
An adjustable support for receiving a reclining human figure comprising torso supporting means having an adjustable back, said torso supporting means comprising first U-shaped frame means with weight supporting means extending across the span of said first U-shaped frame means and secured to said first U-shaped frame means, said torso supporting means connected to leg supporting means comprising second U-shaped frame means having weight supporting means extending across the span of said second U-shaped frame means and being secured to said second U-shaped frame means, said first U-shaped means and said second U-shaped frame means being foldably connected to one another, said second U-shaped frame means having adjustable knee comfort means operatively secured thereto which comprises folding planar surface means extending in the same direction as the plane of said leg supporting means and intermediate the ends of said leg supporting means, said folding planar surface being adjustable from a planar configuration to an upwardly projecting inverted-V configuration substantially in the area of said leg supporting means that provides support for the portion of the leg under the knee, said knee comfort means further comprising foldable U-shaped frame means, weight support means extending across the span of said foldable U-shaped frame means and secured to said foldable U-shaped frame means, said leg supporting means being horizontally planar in the area in front of said knee comfort means.
Claim 2
Dependent Claim
227 words
An adjustable support for receiving a reclining human figure comprising torso supporting means having an adjustable back, said torso supporting means comprising first U-shaped frame means with weight supporting means extending across the span of said first U-shaped frame means and secured to said first U-shaped frame means, said torso supporting means connected to leg supporting means comprising second U-shaped frame means having weight supporting means extending across the span of said second U-shaped frame means and being secured to said second U-shaped frame means, said first U-shaped means and said second U-shaped frame means being foldably connected to one another, said second U-shaped frame means having adjustable knee comfort means operatively secured thereto which comprises folding planar surface means extending in the same direction as the plane of said leg supporting means and intermediate the ends of said leg supporting means, said folding planar surface being adjustable from a planar configuration to an upwardly projecting inverted-V configuration substantially in the area of said leg supporting means that provides support for the portion of the leg under the knee, said knee comfort means further comprising foldable U-shaped frame means, weight support means extending across the span of said foldable U-shaped frame means and secured to said foldable U-shaped frame means, said leg supporting means being horizontally planar in the area in front of said knee comfort means.
Claim 3
Dependent Claim
138 words
The adjustable support according to claim 1 comprising a folding cot, said knee comfort means comprising a foldable U-shaped frame having two arms and at least two hinged joint means on each arm of said foldable U-shaped frame, said joint means positioned opposite one another and joining said first frame and said second frame, support means transverse to and connected to the arms of said foldable U-shaped frame at each of said hinged joints, adjusting means for said foldable U-shaped frame comprising a plurality of notches on the arms of a support frame positioned beneath said second frame and adapted to receive said joint means closest to the end of said foldable U-shaped frame that is hingedly secured to said second frame, said foldable U-shaped frame being adjustable from a flat configuration to an upwardly pointing inverted-V configuration.
Claim 4
Dependent Claim
93 words
The folding cot of claim 2 where said adjustable back comprises third U-shaped frame means hingedly secured at the ends thereof to said first frame, weight support means extending across the span of said third frame and secured to said third frame, adjusting arm means hingedly secured to said third frame, a plurality of notch means on the arm of said first frame adapted to receive said adjusting arm so that said adjustable back is adjustable from a position co-planar with said first frame to an upright angle sufficient to provide back support.
Claim 5
Dependent Claim
71 words
The folding cot of claim 3 where said first frame and said support frame having folding leg means hingedly secured thereto, middle folding leg means hingedly secured to hinge means on either side of said first frame and said support frame for foldably connecting said first frame to said support frame, said middle leg means having a transverse rigid member secured to the bottom of and joining said middle leg means.
References Cited (Backward Citations)
US1075752A
Cited
US893364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |