US3748666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beds
Assignee: Individual
•
Filing: 1971-08-05
•
Granted: 1973-07-31
•
Expires: 1991-08-05
Abstract
Abstract A bed for patients who are unable to move about in bed to prevent sores comprises an elongate carrier structure having a web of flexible sheet material hung across it and power-drivable means for turning the carrier structure to and fro so as to cause different parts of the patient''s anatomy to support his weight.
Inventors
- 👤 K Seng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:21
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/002; A61G7/008
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
102 words
A bed comprising a base structure, an elongate carrier structure arranged to be supported by said base structure for pivotal movement relative thereto about an axis substantially parallel to the length of the carrier structure, and poweroperated driving means for oscillating the carrier structure about said axis between predetermined limits, the carrier structure having at least one web of flexible sheet material loosely hung across it to provide a slack support for the body of a patient lying lengthways of the carrier structure, which web supports a patient''s weight via successively different parts of his anatomy as the carrier structure is oscillated.
Claim 2
Dependent Claim
102 words
A bed comprising a base structure, an elongate carrier structure arranged to be supported by said base structure for pivotal movement relative thereto about an axis substantially parallel to the length of the carrier structure, and poweroperated driving means for oscillating the carrier structure about said axis between predetermined limits, the carrier structure having at least one web of flexible sheet material loosely hung across it to provide a slack support for the body of a patient lying lengthways of the carrier structure, which web supports a patient''s weight via successively different parts of his anatomy as the carrier structure is oscillated.
Claim 3
Dependent Claim
37 words
A bed according to claim 1, in which the power operated driving means incorporates means for automatically reversing the direction of movement of the carrier structure each time that it reaches a limit of its pivotal movement.
Claim 4
Dependent Claim
15 words
A bed according to claim 2, in which said reversing means comprises automatic limit switches.
Claim 5
Dependent Claim
27 words
A bed according to claim 1 in which the web is hung between the two long sides of a substantially rectangular frame constituting the said carrier structure.
Claim 6
Dependent Claim
38 words
A bed according to claim 1 in which the said operated driving means for oscillating the carrier structure includes a lever arm rigidly connected to the said structure, the arm being in driving connection with an electric motor.
Claim 7
Dependent Claim
46 words
A bed according to claim 5, in which the said driving connection comprises a nut pivotally and slidably associated with the arm and carried on a screw driven by said electric motor, such screw extending transversely of the axis of pivotal movement of the carrier structure.
Claim 8
Dependent Claim
88 words
A bed according to claim 6 in which the power operated driving means incorporates automatic limit switches for reversing the direction of movement of the carrier structure each time it reaches a limit of its pivotal movement, said limit switches being provided adjacent the screw for engagement by the nut when it reaches the respective ends of its travel corresponding to the maximum angular displacement of the carrier structure, such switches being coupled to the electric motor for reversing its direction of rotation on actuation of the switches.
Claim 9
Dependent Claim
56 words
A bed according to claim 1 in which said power-operated driving means includes a lever arm rigidly connected to the said carrier structure, such arm being mechanically connected to a crank mounted on a wheel arranged to be continuously driven in one sense by an electric motor, to turn the carrier structure continuously to and fro.
Claim 10
Dependent Claim
24 words
A bed according to claim 1 in which the carrier structure is automatically movable stepwise through a succession of positions between its limit positions.
Claim 11
Dependent Claim
67 words
A bed according to claim 1, in which means provided for manually locking the carrier structure compriseS an arcuate metal plate rigidly fixed to the base structure and a further lever arm fixedly connected to the carrier structure and registering with said plate, fastening means being provided for securing said further arm to said plate in any of a number of different positions of said carrier structure.
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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |