US3802002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beds
Assignee: Individual
•
Filing: 1972-06-07
•
Granted: 1974-04-09
•
Expires: 1992-06-07
Abstract
Abstract A hospital type bed in which the legs at each end of the bed are connected together by a cross member so that legs at each end pivot together to adjust the height of the bed from the floor. Threaded centrally controlled adjusting rod connected to each cross member and to a central control position under the bed frame.
Inventors
- 👤 C Jonas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:01
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/002; A61G7/005
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
123 words
A bed comprising a frame having supporting legs therefor, the legs being connected at each end of the bed by cross members and being pivotally mounted to be disposable at varying angles to a floor on which the bed is situated, two threadably engaged male and respective female threaded members beneath the frame and between the legs and operatively associated with the frame and the cross members of the legs so that one of each of the male and respective female threaded members is rotatable and associated with a common mechanical drive means to cause generally linear movement of the one or the respective other of the threaded members whereby to vary the angular relationship of the legs with respect to the floor.
Claim 2
Dependent Claim
123 words
A bed comprising a frame having supporting legs therefor, the legs being connected at each end of the bed by cross members and being pivotally mounted to be disposable at varying angles to a floor on which the bed is situated, two threadably engaged male and respective female threaded members beneath the frame and between the legs and operatively associated with the frame and the cross members of the legs so that one of each of the male and respective female threaded members is rotatable and associated with a common mechanical drive means to cause generally linear movement of the one or the respective other of the threaded members whereby to vary the angular relationship of the legs with respect to the floor.
Claim 3
Dependent Claim
30 words
A bed as claimed in claim 1 wherein each of the male members is adapted to be rotated and each of the female members is secured in a non-rotatable manner.
Claim 4
Dependent Claim
15 words
A bed as claimed in claim 1 wherein the two male members are threaded shafts.
Claim 5
Dependent Claim
22 words
A bed as claimed in claim 3 wherein one of the thReaded shafts is adapted to be rotated independently of the other.
Claim 6
Dependent Claim
37 words
A bed as claimed in claim 1 wherein the mechanical drive means includes a gearbox having two bevel gears therein with an input drive member which is adapted to be rotated and having two output drive members.
Claim 7
Dependent Claim
15 words
A bed as claimed in claim 1 wherein said drive means includes an electric motor.
Claim 8
Dependent Claim
46 words
A bed as claimed in claim 1 wherein each threaded shaft is connected to the common drive means via a releasable member operative to release each respective threaded shaft from said drive means whereby to enable the threaded shafts to be rotated independently of one another.
Claim 9
Dependent Claim
20 words
A bed as claimed in claim 7 wherein said releasable member is a mechanical release coupling or an electromagnetic clutch.
Claim 10
Dependent Claim
75 words
A bed as claimed in claim 6 in combination with an adjustable mattress supporting surface having a first member pivoted at one end thereof to the frame and a second member pivotably mounted to the first member, the end of said second member remote from the pivoted end being slidably engaged with the bed frame and a third member pivoted at one end thereof to the frame adjacent the pivoted end of the first member.
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) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |