US4428087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Therapeutical air mattress
Assignee: Individual
•
Filing: 1981-10-19
•
Granted: 1984-01-31
•
Expires: 2001-10-19
Abstract
Abstract A therapeutic air mattress for attending patients consists of an inflatable hollow body provided with a pair of symmetrically arranged longitudinal air tubes which form an inflatable single chamber system and which almost adjoin one another in a head region and are spaced from one another in a body region where an intermediate chamber is provided in which an oblong resiliently deformable body is displaceably arranged, having a lower degree of deformation that the inflated pair of air tubes. Alternatively, the intermediate chamber also is inflatable, but independently of the pair of tubes, and in use is blown up to a greater extent than the pair of tubes. Patients lying on the mattress can be set in rhythmical vibrations in order to attend on articular rheumatism and blockages of vertebrae and articulations.
Inventors
- 👤 Friedrich Horn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:03
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/08; A47C27/088; A47C27/081; A47C27/10; A47C27/14; A47C27/18; A61; A61G; A61G7/00; A61G7/05; A61G7/057; A61G7/05769
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
163 words
A therapeutical air mattress comprising: a pair of substantially rectangular oblong resilient walls connected with one another to define a pair of inflatable side chambers; a head part of said mattress in which said pair of side chambers are arranged with only a small interspace therebetween; a leg part; a body part of said mattress intermediate of and adjoining the head part and the leg part; the side chambers being spaced from one another in the body part by an oblong compartment provided between the side chambers which comprises a large interspace than the interspace in the head part; an oblong resiliently deformable body arranged within said oblong compartment and having a greater deformation resistance than the pair of side chambers, the deformable body being displaceably arranged within the compartment in the longitudinal direction of the mattress; and an opening extending through the walls provided in the longitudinal direction of the mattress between the side chambers in the head part of the mattress.
Claim 2
Dependent Claim
163 words
A therapeutical air mattress comprising: a pair of substantially rectangular oblong resilient walls connected with one another to define a pair of inflatable side chambers; a head part of said mattress in which said pair of side chambers are arranged with only a small interspace therebetween; a leg part; a body part of said mattress intermediate of and adjoining the head part and the leg part; the side chambers being spaced from one another in the body part by an oblong compartment provided between the side chambers which comprises a large interspace than the interspace in the head part; an oblong resiliently deformable body arranged within said oblong compartment and having a greater deformation resistance than the pair of side chambers, the deformable body being displaceably arranged within the compartment in the longitudinal direction of the mattress; and an opening extending through the walls provided in the longitudinal direction of the mattress between the side chambers in the head part of the mattress.
Claim 3
Dependent Claim
48 words
An air mattress as claimed in claim 1, wherein the side chambers have their maximum height in said body part of the mattress and the height dimensions gradually reduce to the end of the head part and to the opposite end of the leg part of the mattress.
Claim 4
Dependent Claim
38 words
An air mattress as claimed in claim 1, wherein the deformable body as seen in a vertical longitudinal sectional view has a convexedly shaped upper surface with the maximum height in the middle portion of the deformable body.
Claim 5
Dependent Claim
17 words
An air mattress as claimed in claim 1, wherein the deformable body comprises a synthetic foam material.
Claim 6
Dependent Claim
17 words
An air mattress as claimed in claim 1, wherein the deformable body comprises a fluid-filled resilient container.
References Cited (Backward Citations)
CA616416A
Cited
US1218291A
Cited
GB159299A
Cited
US2582439A
Cited
US2731652A
Cited
US3112956A
Cited
US3253861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-30 | 1987-08-01 | 1988-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-30 | 1991-08-01 | 1992-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-30 | 1995-08-01 | 1996-01-31 | $7700.00 | Window Closed / Lapsed |