US3750200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bed setting drive with low-pressure hydraulic system
Assignee: Veenendaal & Co
•
Filing: 1972-04-18
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Granted: 1973-08-07
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Expires: 1992-04-18
Abstract
Abstract E.G. DEVICE FOR HYDRAULICALLY SETTING THE POSITION OF A BED WHICH INCLUDES A LARGE DIAMETER INFLATABLE HOSE TO WHICH IS CONNECTED A SOURCE OF LOW-PRESSURE WATER, E.G., FROM THE MAIN WATER SUPPLY. Inflation of the hose serves to move an element in contact with the hose surface and this element controls the position of the bed.
Inventors
- 👤 G Hirmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:19
CPC Classifications
A; A47; A47C; A47C20/00; A47C20/04; A47C20/048; A61; A61G; A61G7/00; A61G7/002; A61G7/015
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
83 words
A device for hydraulically setting the position of a bed using low fluid pressure comprising at least one elongated, radially inflatable hose having a large hydraulically active surface, pivot assembly means for positioning the bed in response to the inflation of said hose, said pivot assembly means including an element forming a concave deformation in the surface of said hose, through which movement of the surface of said hose is transferred to the bed, and means to inflate and deflate said inflatable hose.
Claim 2
Independent Claim
83 words
A device for hydraulically setting the position of a bed using low fluid pressure comprising at least one elongated, radially inflatable hose having a large hydraulically active surface, pivot assembly means for positioning the bed in response to the inflation of said hose, said pivot assembly means including an element forming a concave deformation in the surface of said hose, through which movement of the surface of said hose is transferred to the bed, and means to inflate and deflate said inflatable hose.
Claim 3
Dependent Claim
47 words
Bed-setting drive according to claim 1 wherein said element of said pivot assembly means comprises a U-shaped tube the top of which is connected to a pivoting part of said assembly means and the base of which forms said concave deformation in the surface of said hose.
Claim 4
Dependent Claim
23 words
A device in accordance with claim 1 comprising two said inflatable hoses for controlling the positioning of two separate portions of the bed.
Claim 5
Dependent Claim
16 words
Bed-setting drive according to claim 3 wherein each said hose is supported by a channel-shaped component.
Claim 6
Dependent Claim
12 words
Bed-setting drive according to claim 8 wherein water is the fluid medium.
Claim 7
Dependent Claim
19 words
A device in accordance with claim 5 comprising means for connecting said means to inflate to main water supply.
Claim 8
Dependent Claim
23 words
Bed-setting drive according to claim 1 wherein said means to inflate and deflate said hose includes a low-pressure pump and a bladder-type reservoir.
Claim 9
Dependent Claim
19 words
Bed-setting Drive according to claim 1 wherein said means to inflate and deflate comprises at least one differential valve.
Claim 10
Dependent Claim
101 words
In a device for setting the position of a bed using a low pressure medium wherein the bed includes a frame and pivotal portion, comprising at least one elongated hose portion closed at both ends, an elongated rigid concave support channel for said elongated hose, said support channel being rigidly affixed to the bed frame, a transmission member in contact with and forming a concave deformation in the surface of said elongated hose and operatively connected to the pivotal portion of the bed, and means to inflate and deflate said hose portion including a source of pressure medium and shutoff means.
Claim 11
Dependent Claim
101 words
In a device for setting the position of a bed using a low pressure medium wherein the bed includes a frame and pivotal portion, comprising at least one elongated hose portion closed at both ends, an elongated rigid concave support channel for said elongated hose, said support channel being rigidly affixed to the bed frame, a transmission member in contact with and forming a concave deformation in the surface of said elongated hose and operatively connected to the pivotal portion of the bed, and means to inflate and deflate said hose portion including a source of pressure medium and shutoff means.
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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |