Patent US3693200A successfully refreshed from Google Patents.
US3693200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beds
Assignee: Individual
•
Filing: 1970-12-28
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Granted: 1972-09-26
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Expires: 1990-12-28
Abstract
Abstract This invention concerns a bed frame comprising a platform and a supporting structure therefor, the said supporting structure comprising rigid uprights between which the platform is supported or is adapted to be supported, the said platform having carrying members for slideable engagement with the said uprights and the said platform being suspended or adapted to be suspended from the said uprights by at least one flexible elongated suspension member which passes or is adapted to pass beneath the said platform, a first operating means being provided for shortening or lengthening the or each said suspension member to effect raising and lowering of the said platform which respect to the said supporting structure and second operating means being provided for shortening and lengthening the or those of the suspension members necessary to effect tilting of the platform.
Inventors
- 👤 John Neville Stafford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:46
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/002; A61G7/012; A61G7/015
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
175 words
An adjustable bed frame comprising: a platform; a supporting structure comprising a plurality of rigid uprights between which said platform is supportable; said platform having a plurality of carrying means for slidable engagement with said uprights; said carrying means including: roller means slidably received by said uprights, bushing means, and bracket means rotatably carrying said bushing means; flexible elongate suspension means directly connected to said uprights and passable at least partially beneath said platform for flexibly suspending said platform from said uprights; first operating means for adjusting the length of said flexible suspension means so as to effect raising and lowering of said platform with respect to said supporting structure; said first operating means being operable to effect raising and lowering of said platform with said platform in a plurality of inclined positions relative to said supporting structure; and said second operating means being operable to effect a change in inclination of said platform relative to said supporting structure with said platform in a plurality of raised or lowered positions relative to said supporting structure.
Claim 2
Dependent Claim
175 words
An adjustable bed frame comprising: a platform; a supporting structure comprising a plurality of rigid uprights between which said platform is supportable; said platform having a plurality of carrying means for slidable engagement with said uprights; said carrying means including: roller means slidably received by said uprights, bushing means, and bracket means rotatably carrying said bushing means; flexible elongate suspension means directly connected to said uprights and passable at least partially beneath said platform for flexibly suspending said platform from said uprights; first operating means for adjusting the length of said flexible suspension means so as to effect raising and lowering of said platform with respect to said supporting structure; said first operating means being operable to effect raising and lowering of said platform with said platform in a plurality of inclined positions relative to said supporting structure; and said second operating means being operable to effect a change in inclination of said platform relative to said supporting structure with said platform in a plurality of raised or lowered positions relative to said supporting structure.
Claim 3
Dependent Claim
22 words
An adjustable bed frame according to claim 1, wherein at least one of said first and second operating means comprises hydraulic means.
Claim 4
Dependent Claim
29 words
An adjustable bed frame according to claim 1, and including a head rest which may be tilted by raising and lowering said head rest with respect to said platform.
Claim 5
Dependent Claim
38 words
An adjustable bed frame according to claim 3, wherein means by which said head rest may be raised and lowered are linked with said second operating means so that tilting said head rest causes inclination of said platform.
Claim 6
Dependent Claim
43 words
An adjustable bed frame according to claim 1 wherein at least one of said first and second operating means comprises roller means for rollably receiving said flexible elongate suspensions means and operable to selectively adjust the length of said flexible elongate suspensions means.
Claim 7
Dependent Claim
23 words
An adjustable bed frame according to claim 1 wherein at least one of said first and second operating means comprises screw adjustment means.
Claim 8
Dependent Claim
130 words
An adjustable bed frame according to claim 1, wherein said bed frame includes a head rest compriSing: head supporting means having a frame for supporting a surface in raised position in relation to said platform; two support arms for each of a side edge of said head supporting means; a first end of each of said two support arms being slidably engaged in slots provided in said rigid upright; a second end of each of two support arms being pivotally connected to each other; at least one of said two support arms being connected to said side edge of said head support means; and pivot locking means for securing said support arms so as to permit said head supporting means to be raised to a desired position and locked thereat.
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |