US3810265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Viscosity control additive for water beds and other aqueous-filled furniture
Assignee: Individual
•
Filing: 1971-08-04
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Granted: 1974-05-14
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Expires: 1991-08-04
Abstract
Abstract Unpleasant bouncing or other oscillations resulting from movements upon aqueous filled furniture or other apparatus, e.g., a water bed, is inhibited by filling the furniture with aqueous fluid and additionally a water soluble viscosity increasing agent. Other additives such as preservatives or algicides are preferably incorporated into the aqueous fluid. This increased viscosity imparts a dampening effect to water movement within the furniture for comfort of the user(s) and yet provides the uniform cushioned buoyancy attributable to conventional water filled furniture.
Inventors
- 👤 D Mcgrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:25
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/08; A47C27/085; Y; Y10; Y10S; Y10S5/00; Y10S5/909
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
106 words
In water filled furniture comprising a bladder element for receiving an aqueous fluid buoyant and for support of a person(s), the improvement comprising a water-soluble additive in combination therewith and to be incorporated into said bladder element, said additive selected from the group consisting of cellulosic derivatives, gums and alginates and present in the amount of from about 0.01 to about 10 weight percent of the aqueous fluid buoyant and effective to raise the apparent viscosity of the fluid buoyant to a level sufficient to substantially dampen ''''waves'''' generated by said person(s) causing internal displacement of the fluid buoyant by body movement acting upon the bladder.
Claim 2
Dependent Claim
106 words
In water filled furniture comprising a bladder element for receiving an aqueous fluid buoyant and for support of a person(s), the improvement comprising a water-soluble additive in combination therewith and to be incorporated into said bladder element, said additive selected from the group consisting of cellulosic derivatives, gums and alginates and present in the amount of from about 0.01 to about 10 weight percent of the aqueous fluid buoyant and effective to raise the apparent viscosity of the fluid buoyant to a level sufficient to substantially dampen ''''waves'''' generated by said person(s) causing internal displacement of the fluid buoyant by body movement acting upon the bladder.
Claim 3
Dependent Claim
26 words
A water bed according to claim 1 wherein the resultant apparent viscosity of the fluid buoyant is from about 60 centipoises to about 2 million centipoises.
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) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |