US3902205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic bed frame
Assignee: Individual
•
Filing: 1974-03-14
•
Granted: 1975-09-02
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Expires: 1994-03-14
Abstract
Abstract A stabilized bed frame comprising an upper frame member supported by a plurality of hydraulic stabilizers mounted on a lower frame member. A plurality of criss-crossed flexible slats is provided as a support on the upper member, for placing a mattress thereon. The corners of the frames are provided with pulleys through which extend cables for holding the mattress spring. The cable ends are secured to hydraulic shock absorbers or to springs located under the upper member.
Inventors
- 👤 Edward Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:05
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/12; A47C23/14; A47C23/15
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
A stabilized bed spring frame comprising a lower frame member, an upper frame having corner portions, stabilizing means mounted on said lower frame member for supporting said upper frame member and having corner portions, a flexible bed spring displaceable on said upper frame member, and means mounted on said upper and lower frame members for stabilizing said bed spring, said stabilizing means for supporting said upper frame member being hydraulic shock absorber cylinders, said stabilizing means comprising a first set of twin pulleys mounted on said corner portions of said lower frame member, cables extending over said first and second sets of twin pulleys, said cables having end portions secured to said stabilizing means, guide means for said cables slidably secured said bed spring to said cables, said guide means slidably securing said bed spring to said cables being tubular members formed with enlarged conical ends, said tubular members being fixedly secured to said upper frame members.
Claim 2
Dependent Claim
157 words
A stabilized bed spring frame comprising a lower frame member, an upper frame having corner portions, stabilizing means mounted on said lower frame member for supporting said upper frame member and having corner portions, a flexible bed spring displaceable on said upper frame member, and means mounted on said upper and lower frame members for stabilizing said bed spring, said stabilizing means for supporting said upper frame member being hydraulic shock absorber cylinders, said stabilizing means comprising a first set of twin pulleys mounted on said corner portions of said lower frame member, cables extending over said first and second sets of twin pulleys, said cables having end portions secured to said stabilizing means, guide means for said cables slidably secured said bed spring to said cables, said guide means slidably securing said bed spring to said cables being tubular members formed with enlarged conical ends, said tubular members being fixedly secured to said upper frame members.
Claim 3
Dependent Claim
20 words
The device as claimed in claim 1, wherein said means for stabilizing said bed spring are hydraulic shock absorber cylinders.
Claim 4
Dependent Claim
38 words
The device as claimed in claim 2, wherein said guide means slidably securing said bed spring to said cables are tubular members formed with enlarged conical ends, said tubular members being fixedly secured to said upper frame members.
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) | 1978-09-01 | 1979-03-03 | 1979-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-01 | 1983-03-03 | 1983-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-01 | 1987-03-03 | 1987-09-02 | $7700.00 | Window Closed / Lapsed |