Patent US4192031A successfully refreshed from Google Patents.
US4192031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waterbed mattress
Assignee: CLASSIC CORP
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Filing: 1979-01-16
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Granted: 1980-03-11
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Expires: 1999-01-16
Abstract
Abstract A waterbed mattress construction includes baffle means for dampening water wave action. The dampening means comprises one or more flexible plastic strips welded to the interior bottom surface of the mattress and flotation means welded to the other end of the strips. The flexible strips may be in the form of an open box with approximately the same configuration as the waterbed mattress. The flotation means is a single piece of foam or other material which causes the plastic strips to float to the top of the water in the mattress.
Inventors
- 👤 Isaac Fogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:27
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/08; A47C27/088; A47C27/085
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
152 words
A waterbed mattress having dampening means for substantially eliminating water wave action comprising: a. a top sheet, a bottom sheet, and peripheral vertical walls wherein the top sheet and the bottom sheet are joined to the peripheral vertical walls on their peripheral edges to form a sealed envelope; and b. dampening means in the waterbed mattress, the dampening means being affixed to the interior surface of the bottom sheet and having flotation means for extending the dampening means vertically, the dampening means being positioned in the waterbed mattress to prevent continuous water wave action; c. the dampening means comprising: (1) a box, open on the bottom, of flexible, water-impervious, sheet-like material, the open box having the approximate shape of the waterbed mattress; (2) a plurality of openings located in two opposite vertical sides of the open box; and (3) flotation means attached to the underside of the top of the open box.
Claim 2
Dependent Claim
152 words
A waterbed mattress having dampening means for substantially eliminating water wave action comprising: a. a top sheet, a bottom sheet, and peripheral vertical walls wherein the top sheet and the bottom sheet are joined to the peripheral vertical walls on their peripheral edges to form a sealed envelope; and b. dampening means in the waterbed mattress, the dampening means being affixed to the interior surface of the bottom sheet and having flotation means for extending the dampening means vertically, the dampening means being positioned in the waterbed mattress to prevent continuous water wave action; c. the dampening means comprising: (1) a box, open on the bottom, of flexible, water-impervious, sheet-like material, the open box having the approximate shape of the waterbed mattress; (2) a plurality of openings located in two opposite vertical sides of the open box; and (3) flotation means attached to the underside of the top of the open box.
Claim 3
Dependent Claim
26 words
The waterbed mattress of claim 1 wherein a plurality of openings are located in all four vertical sides of the open box forming the dampening means.
Claim 4
Dependent Claim
27 words
The waterbed mattress of claim 1 wherein the dampening means maintains a substantially constant wiping contact with the interior of the top wall of the waterbed mattress.
Claim 5
Dependent Claim
16 words
The waterbed mattress of claim 1 wherein the flotation means is a single piece of foam.
Claim 6
Dependent Claim
19 words
The waterbed mattress of claim 4 wherein the foam has approximately the same horizontal dimensions as the waterbed mattress.
References Cited (Backward Citations)
US3736604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-11 | 1983-09-10 | 1984-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-11 | 1987-09-10 | 1988-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-11 | 1991-09-10 | 1992-03-11 | $7700.00 | Window Closed / Lapsed |