Patent US4297755A successfully refreshed from Google Patents.
US4297755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-planar waterbed
Assignee: Individual
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Filing: 1980-02-15
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Granted: 1981-11-03
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Expires: 2000-02-15
Abstract
Abstract A bed frame, such as for hospital use, includes a part that may be upwardly inclined. A series of transverse slings suspend a series of individual elongated bag elements. The individual bag elements, when filled with water, merge to form a comfortable and conformable surface. A control system determines and maintains optimum pressure in each of the bag elements as well as in the main horizontal portion of the mattress bag.
Inventors
- 👤 Carlos A. Mollura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:41
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/08; A47C27/10; A47C27/085
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
131 words
In a waterbed structure: (a) a waterbed frame including a plurality of sections, at least one of which is inclined, said one frame section having side walls; (b) a series of supports extending across the inclined frame section and defining a series of individual pockets for waterbed bag elements; (c) a series of individual waterbed bag elements in said pockets and supported by said supports; (d) waterbed bag means for the remaining section or sections of said frame; (e) said waterbed bag elements being contiguous with each other to provide an integral substantially flat support surface adjoining said waterbed bag means; (f) each of said supports being structurally connected to said side walls of said frame whereby said supports sustain components of the weight of said bag elements in said pockets.
Claim 2
Dependent Claim
131 words
In a waterbed structure: (a) a waterbed frame including a plurality of sections, at least one of which is inclined, said one frame section having side walls; (b) a series of supports extending across the inclined frame section and defining a series of individual pockets for waterbed bag elements; (c) a series of individual waterbed bag elements in said pockets and supported by said supports; (d) waterbed bag means for the remaining section or sections of said frame; (e) said waterbed bag elements being contiguous with each other to provide an integral substantially flat support surface adjoining said waterbed bag means; (f) each of said supports being structurally connected to said side walls of said frame whereby said supports sustain components of the weight of said bag elements in said pockets.
Claim 3
Dependent Claim
25 words
The waterbed structure as set forth in claim 1 in which said supports are in the form of flexible webs recessed beneath said support surface.
Claim 4
Dependent Claim
141 words
In a waterbed structure: (a) a waterbed frame including a plurality of sections including a head section pivotally connected to another section for angular movement about a substantially horizontal axis to incline said head section; (b) said head section having an end frame element and side frame elements; (c) a series of flexible slings extending across said head section and having ends respectively secured to the said side frame elements of said head section, said slings defining a series of individual elongated spaces for waterbed bag elements; (d) a series of individual waterbed bag elements in said spaces and supported by said slings; (e) waterbed bag means for the rest of said frame; (f) said waterbed bag elements being contiguous with each other to provide an integral substantially flat support surface, said slings having edges recessed beneath the top support surface.
Claim 5
Dependent Claim
141 words
In a waterbed structure: (a) a waterbed frame including a plurality of sections including a head section pivotally connected to another section for angular movement about a substantially horizontal axis to incline said head section; (b) said head section having an end frame element and side frame elements; (c) a series of flexible slings extending across said head section and having ends respectively secured to the said side frame elements of said head section, said slings defining a series of individual elongated spaces for waterbed bag elements; (d) a series of individual waterbed bag elements in said spaces and supported by said slings; (e) waterbed bag means for the rest of said frame; (f) said waterbed bag elements being contiguous with each other to provide an integral substantially flat support surface, said slings having edges recessed beneath the top support surface.
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) | 1984-11-02 | 1985-05-04 | 1985-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-02 | 1989-05-04 | 1989-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-02 | 1993-05-04 | 1993-11-03 | $7700.00 | Window Closed / Lapsed |