Patent US3665528A successfully refreshed from Google Patents.
US3665528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable bed
Assignee: TRIOTEAM
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Filing: 1970-07-28
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Granted: 1972-05-30
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Expires: 1990-07-28
Abstract
Abstract The invention relates to an adjustable bed having a bottom resting upon a tripartite, hinged frame, and being provided with means for adjusting the bottom from a neutral, horizontal position to an oblique position with the foot end elevated, and to a folded position, wherein the back-supporting part is oblique or vertical, the two other parts forming a reversed V, the adjustment means being designed so as to be operated by a single mechanism maneuvered by the person occupying the bed.
Inventors
- 👤 Finn Andre Kjellberg
- 👤 Svend E N Lemvig
- 👤 Bent I Kjellberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:47
CPC Classifications
A; A47; A47C; A47C20/00; A47C20/08; A47C20/04; A47C20/041
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
172 words
An adjustable bed comprising: A. a base; B. a tripartite articulated frame including: 1. a back part; 2. an intermediate seat part; 3. a leg supporting part; C. a fixed pivot support for said back part pivotally supporting said back part proximate the end thereof adjacent said seat part; D. an elongate back part adjustment plate pivotally mounted at an end thereof to said base, and including; 1. spaced back part support engaging and supporting means remote from the pivoted end selectively engageable with said back part on pivoting of said plate to different angular positions to pivot said back part about said fixed support; E. a lever arm constituting a rigid extension of said back part beyond said pivot therefor, and being pivotally connected at the end thereof with said seat part; F. a seat part support member spaced inwardly from the pivotally connected end thereof and selectively engageable with said seat part; G. an elongate leg part adjustment plate pivotally mounted at an end thereof to said base, and including:
Claim 2
Dependent Claim
172 words
An adjustable bed comprising: A. a base; B. a tripartite articulated frame including: 1. a back part; 2. an intermediate seat part; 3. a leg supporting part; C. a fixed pivot support for said back part pivotally supporting said back part proximate the end thereof adjacent said seat part; D. an elongate back part adjustment plate pivotally mounted at an end thereof to said base, and including; 1. spaced back part support engaging and supporting means remote from the pivoted end selectively engageable with said back part on pivoting of said plate to different angular positions to pivot said back part about said fixed support; E. a lever arm constituting a rigid extension of said back part beyond said pivot therefor, and being pivotally connected at the end thereof with said seat part; F. a seat part support member spaced inwardly from the pivotally connected end thereof and selectively engageable with said seat part; G. an elongate leg part adjustment plate pivotally mounted at an end thereof to said base, and including:
Claim 3
Dependent Claim
73 words
A spaced leg part engaging and supporting means remote from the pivoted end engaged with said leg part and operable on pivoting in one direction to selectively angularly conjointly pivot said back part, said seat part and said leg support part in alignment about said back part fixed pivot support, and in the opposite direction angularly dispose said back part, said seat part and said leg support part with respect to one another.
Claim 4
Dependent Claim
73 words
A spaced leg part engaging and supporting means remote from the pivoted end engaged with said leg part and operable on pivoting in one direction to selectively angularly conjointly pivot said back part, said seat part and said leg support part in alignment about said back part fixed pivot support, and in the opposite direction angularly dispose said back part, said seat part and said leg support part with respect to one another.
Claim 5
Dependent Claim
4 words
an intermediate seat part;
Claim 6
Dependent Claim
4 words
an intermediate seat part;
Claim 7
Dependent Claim
24 words
An adjustable bed as claimed in claim 1, said seat part support member being horizontally adjustable for varying angular disposition of the seat part.
Claim 8
Dependent Claim
66 words
An adjustable bed as claimed in claim 1, and arms connected respectively to proximate ends of said seat and leg parts converging downwardly towards one another, a pin proximate the lower end of one said arm, an arcuate slot proximate the lower end of the other said arm, said pin engaging in said slot and conjointly therewith defining pivotal movement between said seat and leg parts.
Claim 9
Dependent Claim
44 words
a leg supporting part; C. a fixed pivot support for said back part pivotally supporting said back part proximate the end thereof adjacent said seat part; D. an elongate back part adjustment plate pivotally mounted at an end thereof to said base, and including;
Claim 10
Dependent Claim
44 words
a leg supporting part; C. a fixed pivot support for said back part pivotally supporting said back part proximate the end thereof adjacent said seat part; D. an elongate back part adjustment plate pivotally mounted at an end thereof to said base, and including;
Claim 11
Dependent Claim
62 words
An adjustable bed as claimed in claim 1, said adjustment plates being triangular shaped with one side substantially shorter that the other two sides, said plates being pivotally secured to said base at one vertex at the short side, and draw means attached proximate the other vertex of the short side operable for pivoting the plates for adjustment of the bed parts.
Claim 12
Dependent Claim
31 words
An adjustable bed as claimed in claim 1, said adjustment plates having arcuate segment shaped means thereon, said draw means passing thereover, and constituting an unwinding curve for said draw means.
Claim 13
Dependent Claim
56 words
An adjustable bed as claimed in claim 5, a movable cross bar, a reversibly rotatable spindle and nut assembly for moving said cross bar, said draw means including cables attached to said cross bar and said plates whereby upon movement of said cross bar said plates are rotated for selected movement of said bed parts conjointly.
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) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |