Patent US4254518A successfully refreshed from Google Patents.
US4254518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum mattress, preferably for rescue vehicles
Assignee: Dr Ing HCF Porsche AG
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Filing: 1979-06-25
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Granted: 1981-03-10
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Expires: 1999-06-25
Abstract
Abstract A vacuum mattress of the type having a casing that is loosely filled with a multitude of synthetic plastic components so as to enable the mattress to adapt in shape to the body contour of a person thereon and which is retained in the body contour adapted shape by evacuation of the casing, is provided with support elements projecting above an upper surface plane of a central mattress-forming element and have at least a portion thereof extending in a direction across at least one end thereof. In preferred embodiments, the support elements are formed by separate casings from that of the central element and these casings are evacuatable separately and/or jointly from each other, and the support elements are configured so as to define an opening for a person's head and support for his shoulders. The support element in the illustrated embodiments include either a ring segment shaped section for defining the head opening and shoulder support or segments extending diagonally and normally with respect to a central longitudinal plane of the mattress.
Inventors
- 👤 Wolfgang Buhren
- 👤 Rainer Hoefs
- 👤 Ulrich Bez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:12
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/05; A61G7/057; A61G7/05738; A61G7/05753; A61G2200/00; A61G2200/50; A61G2200/54
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
146 words
In a vacuum mattress of the type comprising a casing means loosely filled with a multitude of synthetic plastic components so as to enable the mattress to adapt in shape to the body contour of a person thereon, and means placed in the casing for evacuation thereof, the improvement wherein said casing means is comprised of a central horizontal mattress element and vertical support elements extending along the longitudinal sides of said central mattress element, wherein each support element has a ring segment shaped section for supporting a person's shoulders, wherein the support elements form an opening for the head area of a patient, and wherein said central element and support elements are formed by separate casings at least some of which are interconnected by valve means forming part of said means for evacuating said casing means and serving for separately or jointly evacuating said casings.
Claim 2
Dependent Claim
146 words
In a vacuum mattress of the type comprising a casing means loosely filled with a multitude of synthetic plastic components so as to enable the mattress to adapt in shape to the body contour of a person thereon, and means placed in the casing for evacuation thereof, the improvement wherein said casing means is comprised of a central horizontal mattress element and vertical support elements extending along the longitudinal sides of said central mattress element, wherein each support element has a ring segment shaped section for supporting a person's shoulders, wherein the support elements form an opening for the head area of a patient, and wherein said central element and support elements are formed by separate casings at least some of which are interconnected by valve means forming part of said means for evacuating said casing means and serving for separately or jointly evacuating said casings.
Claim 3
Dependent Claim
201 words
In a vacuum mattress for rescue vehicles of the type comprising a casing means loosely filled with a multitude of synthetic plastic components so as to enable the mattress to adapt in shape to the body contour of a person thereon, and means placed in the casing for evacuation thereof, the improvement wherein said casing means is comprised of a central horizontal mattress element and vertical support elements extending along the longitudinal sides of said central mattress element, said support elements projecting above an upper surface plane of the central element and having a body supporting portion extending in a direction across at least one end thereof, wherein each support element has a section which extends diagonally with respect to the central longitudinal plane of the mattress and a section which is at right angles to the longitudinal central plane, for supporting a person's shoulders, wherein the support elements form an opening for the head area of a patient, and wherein said central element and support elements are formed by separate casings at least some of which are interconnected by valve means forming part of said means for evacuating said casing means and serving for separately or jointly evacuating said casings.
Claim 4
Dependent Claim
201 words
In a vacuum mattress for rescue vehicles of the type comprising a casing means loosely filled with a multitude of synthetic plastic components so as to enable the mattress to adapt in shape to the body contour of a person thereon, and means placed in the casing for evacuation thereof, the improvement wherein said casing means is comprised of a central horizontal mattress element and vertical support elements extending along the longitudinal sides of said central mattress element, said support elements projecting above an upper surface plane of the central element and having a body supporting portion extending in a direction across at least one end thereof, wherein each support element has a section which extends diagonally with respect to the central longitudinal plane of the mattress and a section which is at right angles to the longitudinal central plane, for supporting a person's shoulders, wherein the support elements form an opening for the head area of a patient, and wherein said central element and support elements are formed by separate casings at least some of which are interconnected by valve means forming part of said means for evacuating said casing means and serving for separately or jointly evacuating said casings.
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) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |