Patent US4236261A successfully refreshed from Google Patents.
US4236261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pivot top for stretcher or the like
Assignee: INTERNATIONAL INDUSTRIES Inc 5500 MUDDY CREEK RD CINCINNATI OH A IL CORP
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Filing: 1979-03-09
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Granted: 1980-12-02
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Expires: 1999-03-09
Abstract
Abstract A patient stretcher, bed, or the like having a tiltable mattress support section driven by an actuator having a release clutch mechanism. A sliding joint between the tiltable top section and the actuator permits the clutch to disengage at various angular positions of the tiltable top which are controlled by an adjustable limit stop.
Inventors
- 👤 David F. Huempfner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:44
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/002; A61G7/015
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
104 words
A stretcher or the like comprising: a top section pivotally connected to a base; stop means on the stretcher to limit the downward travel of the top section at a plurality of positions; a variable length screw actuator on the stretcher joined to the top section for angularly moving the top section; said screw actuator including a nonthreaded run off section which functions as a clutch; and a slide joint on the stretcher for varying the effective length of the actuator, whereby the actuator can disengage coupling pressure with the top section at a plurality of top section positions with a common actuator length.
Claim 2
Dependent Claim
104 words
A stretcher or the like comprising: a top section pivotally connected to a base; stop means on the stretcher to limit the downward travel of the top section at a plurality of positions; a variable length screw actuator on the stretcher joined to the top section for angularly moving the top section; said screw actuator including a nonthreaded run off section which functions as a clutch; and a slide joint on the stretcher for varying the effective length of the actuator, whereby the actuator can disengage coupling pressure with the top section at a plurality of top section positions with a common actuator length.
Claim 3
Dependent Claim
30 words
A stretcher or the like as set forth in claim 1, wherein the top is segmented and the first section is tiltable relative to a second section of the top.
Claim 4
Dependent Claim
22 words
A stretcher or the like as set forth in claim 2, wherein one position includes both sections lying along a common plane.
Claim 5
Dependent Claim
25 words
A stretcher or the like as set forth in claim 2, wherein one position includes the first section angularly disposed relative to the second section.
Claim 6
Dependent Claim
23 words
A stretcher or the like as set forth in claim 4, wherein one position includes the first section tilted below the second section.
Claim 7
Dependent Claim
19 words
A stretcher or the like as set forth in claim 1, wherein the stop means includes a pivoted member.
Claim 8
Dependent Claim
19 words
A stretcher or the like as set forth in claim 1, wherein the screw is driven by a motor.
Claim 9
Dependent Claim
25 words
A stretcher or the like as set forth in claim 1, wherein the slip joint is on an extendable and retractable member of the actuator.
Claim 10
Dependent Claim
19 words
A stretcher or the like as set forth in claim 1, wherein the slip joint includes a slotted member.
Claim 11
Dependent Claim
130 words
A stretcher or the like comprising: a segmented top with an end section pivotally connected to the stretcher for angular tilting both above and below a middle section of the top; a base supportingly connected to the top; an adjustable stop on the stretcher to limit the angular movement of the end section; said stop having at least first and second positions which limit the downward movement of the pivoted end section; a variable length screw actuator on the stretcher joined to the tiltable end section; a nonthreaded run out clutch section on the actuator that disengages at a given length of the actuator; and a slide joint on the stretcher for varying the effective length of the actuator so the clutch can disengage at different settings of the top.
Claim 12
Dependent Claim
130 words
A stretcher or the like comprising: a segmented top with an end section pivotally connected to the stretcher for angular tilting both above and below a middle section of the top; a base supportingly connected to the top; an adjustable stop on the stretcher to limit the angular movement of the end section; said stop having at least first and second positions which limit the downward movement of the pivoted end section; a variable length screw actuator on the stretcher joined to the tiltable end section; a nonthreaded run out clutch section on the actuator that disengages at a given length of the actuator; and a slide joint on the stretcher for varying the effective length of the actuator so the clutch can disengage at different settings of the top.
References Cited (Backward Citations)
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US3611453A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |