Patent US3766577A successfully refreshed from Google Patents.
US3766577A
Expired / Lapsed
US
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Convertible sofa-bed without integral support structure
Assignee: Individual
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Filing: 1972-05-15
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Granted: 1973-10-23
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Expires: 1992-05-15
Abstract
Abstract A convertible sofa-type bed without an integral support structure which is formed of a cushion structure adapted to be selectively folded against a corner of a floor and a wall, or the like. The cushion structure includes a central core of firm, but yieldable material, an outer layer of resilient, fluffy material such as foam chips, shredded foam, or the like, and an outer fabric covering over the outer layer of resilient fluffy material. Interposed between the core and the outer covering is at least one flexible dividing elements to divide the fluffy material into a plurality of isolated cells.
Inventors
- 👤 J Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:37
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/14; A47C27/20; A47C17/00; A47C17/04; A47C17/16; A47C27/15; Y; Y10; Y10S; Y10S297/00; Y10S297/01
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
144 words
A convertible sofa-bed without an integral support structure, comprising a cushion structure adapted to be selectively folded against a corner of a floor wall, or the like, with a first portion of said cushion in a substantially vertical orientation, and a second portion of said cushion in a substantially horizontal orientation, said cushion structure including: a central core formed of a firm, but yieldable and foldable material and having opposing major, generally flat surfaces; an outer layer of resilient, fluffy material surrounding said central core; an outer flexible sheet material covering surrounding said outer layer of resilient material; and at least one elongated flexible dividing element connected between said central core and said outer sheet material covering and passing through said resilient material in the direction of the thickness of said cushion structure to divide said resilient material into a plurality of separated cells.
Claim 2
Dependent Claim
144 words
A convertible sofa-bed without an integral support structure, comprising a cushion structure adapted to be selectively folded against a corner of a floor wall, or the like, with a first portion of said cushion in a substantially vertical orientation, and a second portion of said cushion in a substantially horizontal orientation, said cushion structure including: a central core formed of a firm, but yieldable and foldable material and having opposing major, generally flat surfaces; an outer layer of resilient, fluffy material surrounding said central core; an outer flexible sheet material covering surrounding said outer layer of resilient material; and at least one elongated flexible dividing element connected between said central core and said outer sheet material covering and passing through said resilient material in the direction of the thickness of said cushion structure to divide said resilient material into a plurality of separated cells.
Claim 3
Dependent Claim
35 words
A structure according to claim 1 wherein said at least one flexible divider is connected to said central core and said outer covering with a slack therein to allow free flexure of said cushion structure.
Claim 4
Dependent Claim
17 words
A structure according to claim 1 wherein said at least one flexible divider is of yieldable material.
Claim 5
Dependent Claim
17 words
A structure according to claim 3 wherein said at least one flexible divider is of elastic material.
Claim 6
Dependent Claim
35 words
A structure according to claim 1 including at least two flexible divider elements connected respectively to each major flat surface of said central core for dividing said resilient material into at least two separated cells.
Claim 7
Dependent Claim
34 words
A structure according to claim 5 including a further flexible divider element interconnecting said at least two flexible divider elements at the ends thereof, and further connected to said outer flexible sheet material covering.
Claim 8
Dependent Claim
20 words
A structure according to claim 6 wherein said flexible divider section elements are comprised of a single integral flexible divider.
Claim 9
Dependent Claim
17 words
A structure according to claim 1 including a flexible sheet material covering directly covering said central core.
Claim 10
Dependent Claim
31 words
A structure according to claim 8 wherein at least one said flexible dividing element is stitched to at least one of said central core covering and said outer sheet material covering.
Claim 11
Dependent Claim
18 words
A structure according to claim 8 wherein said central core covering has dimensions larger than said central core.
Claim 12
Dependent Claim
30 words
A structure according to claim 1 wherein said at least one flexible dividing element is bonded to at least one of said central core and said outer sheet material covering.
Claim 13
Dependent Claim
15 words
A structure according to claim 1 wherein said central core is a solid foam material.
Claim 14
Dependent Claim
23 words
A structure according to claim 1 wherein said resilient, fluffy material comprises at least one of foam chips, shredded foam, or the like.
Claim 15
Dependent Claim
24 words
A structure according to claim 1 wherein said at least one flexible dividing element is substantially perpendicular to the major surface of said core.
Claim 16
Dependent Claim
148 words
A convertible sofa-bed without an integral support structure, comprising a cushion structure adapted to be selectively folded against horizontal and vertical fixed members, with a first portion of said cushion in substantially vertical orientation against said vertical member, and a second portion of said cushion in a substantially horizontal orientation against said horizontal member, said cushion structure including: a layer of resilient, fluffy material; an outer flexible sheet material covering surrounding said resilient, fluffy material and retaining said resilient, fluffy material in a generally slab-shaped configuration, said outer flexible sheet material covering having continuous upper and lower major surfaces; and at least one elongated flexible dividing element connected between opposing major surfaces of said outer flexible sheet material and passing through said resilient fluffy material generally in the direction of the thickness of the slab-shaped configuration to divide said resilient, fluffy material into a plurality of separated cells.
Claim 17
Dependent Claim
148 words
A convertible sofa-bed without an integral support structure, comprising a cushion structure adapted to be selectively folded against horizontal and vertical fixed members, with a first portion of said cushion in substantially vertical orientation against said vertical member, and a second portion of said cushion in a substantially horizontal orientation against said horizontal member, said cushion structure including: a layer of resilient, fluffy material; an outer flexible sheet material covering surrounding said resilient, fluffy material and retaining said resilient, fluffy material in a generally slab-shaped configuration, said outer flexible sheet material covering having continuous upper and lower major surfaces; and at least one elongated flexible dividing element connected between opposing major surfaces of said outer flexible sheet material and passing through said resilient fluffy material generally in the direction of the thickness of the slab-shaped configuration to divide said resilient, fluffy material into a plurality of separated cells.
Claim 18
Dependent Claim
29 words
A structure according to claim 15 wherein said at least one elongated flexible dividing element is substantially perpendicular to said major surfaces of said outer flexible sheet material covering.
Claim 19
Dependent Claim
21 words
A structure according to claim 15 wherein said at least one elongated flexible dividing element is of a substantially inelastic material.
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |