US3604024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snubber for safety sides
Assignee: BLOOMCRAFT Inc
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Filing: 1969-07-14
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Granted: 1971-09-14
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Expires: 1989-07-14
Abstract
Abstract A retarding device for braking the free fall of a safety side on an invalid bed or the like, comprising a wedge on at least one of two relatively rotatable members that are in sliding contact with one another and arranged so that the wedge serves to increase the pressure of the sliding contact as the safety side swings down from its erected position to its stowed position. The wedge is molded of resiliently compressible material in a form to facilitate its installation at a pivot joint, and to prevent its rotation with respect to one of the two relatively rotatable members.
Inventors
- 👤 Xavier Walter Polanski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:19
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/05; A61G7/0507; A61G7/0508; A61G7/0509; A61G7/0512; A61G7/0513
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
107 words
In a safety side on an invalid bed or the like in which the safety side is movable by a swinging movement between a stowed position below the level of the patient-supporting surface and an erected guard position alongside the patient-supporting surface extending above the normal level thereof, a snubber for retarding the stowing movement of the safety side comprising two members that are rotated relative to each other by said swinging movement, said members being in sliding contact with each other, and means for increasing the contact pressure between said members when rotated by the stowing movement and decreasing the contact pressure by the erecting movement.
Claim 2
Dependent Claim
107 words
In a safety side on an invalid bed or the like in which the safety side is movable by a swinging movement between a stowed position below the level of the patient-supporting surface and an erected guard position alongside the patient-supporting surface extending above the normal level thereof, a snubber for retarding the stowing movement of the safety side comprising two members that are rotated relative to each other by said swinging movement, said members being in sliding contact with each other, and means for increasing the contact pressure between said members when rotated by the stowing movement and decreasing the contact pressure by the erecting movement.
Claim 3
Dependent Claim
28 words
The arrangement of claim 1 wherein said pressure-increasing means is an inclined plane traversed by one of the relatively rotatable members in the course of said swinging movement.
Claim 4
Dependent Claim
51 words
The arrangement of claim 1 wherein one of said two members is a circular cam arrayed about the axis of relative rotation of said two members and traversed by the other in the course of said rotation, the cam being made of an elastically compressible material and constituting said pressure-increasing means.
Claim 5
Dependent Claim
127 words
In a safety side on an invalid bed or the like in which the safety side is movable by a swinging movement between a stowed position below the level of the patient-supporting surface and an erected guard position alongside the patient-supporting surface extending above the normal level thereof, a snubber for retarding the stowing movement of the safety side comprising a cam block interposed between two members that are rotated relative to one another by said swinging movement, said cam block being secured to one of said members and in contact with the other along the slope of a wedge portion of the block that tends to increase the separation of the two members along the axis of their relative rotation as the safety side is stowed.
Claim 6
Dependent Claim
127 words
In a safety side on an invalid bed or the like in which the safety side is movable by a swinging movement between a stowed position below the level of the patient-supporting surface and an erected guard position alongside the patient-supporting surface extending above the normal level thereof, a snubber for retarding the stowing movement of the safety side comprising a cam block interposed between two members that are rotated relative to one another by said swinging movement, said cam block being secured to one of said members and in contact with the other along the slope of a wedge portion of the block that tends to increase the separation of the two members along the axis of their relative rotation as the safety side is stowed.
Claim 7
Dependent Claim
37 words
The arrangement of claim 4 wherein the block is made of material having a resilient compressibility greater than that of the two members and wherein the cross-sectional area of the wedge portion increases faster than its slope.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |