US4866800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support pad for nonambulatory persons
Assignee: Individual
•
Filing: 1989-03-03
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Granted: 1989-09-19
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Expires: 2009-03-03
Abstract
Abstract A foam support pad for nonambulatory persons provides for a wide weight distribution and maximum aeration of skin areas in contact with the pad to prevent the formation of decubitus ulcers. The top surface of the pad has an array of protuberances and valleys thereon, with air channels extend through the pad. Air channel cores are located beneath the protuberances, with some of the air channel cores extending close till the top of the protuberances, and other of the air channel cores extending through the top portions of the protuberances.
Inventors
- 👤 Peter H. Bedford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:58
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/05; A61G7/057; A61G7/05715; A61G5/00; A61G5/10; A61G5/1043; A61G5/1091; A61G7/05784; A41; A41D; A41D13/00; A41D13/015; A41D13/0156; A41D13/0158
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
175 words
A support pad for nonambulatory persons, said pad having a foam body with a first and second major side for supporting a human anatomy, the improvement in the pad comprising: a substantially uniform distribution of hills of substantially uniform height and cross-section on the first major side of said foam body, said hills being separated by valleys of a substantially uniform depth and uniform cross-section, each of said hills having a top, each of said valleys having an airflow channel terminating at the valley floor and extending through said foam body to the second major side; and the second major side being substantially flat with a plurality of air channel cores terminating at the second major side underneath a plurality of the hills with a plurality of said air channel cores extending close to the top of the hills; whereby the tops of the hills support a human anatomy with even weight distribution and reduced contact pressure, while facilitating increased air circulation to the parts of the human anatomy in contact with the support pad.
Claim 2
Dependent Claim
175 words
A support pad for nonambulatory persons, said pad having a foam body with a first and second major side for supporting a human anatomy, the improvement in the pad comprising: a substantially uniform distribution of hills of substantially uniform height and cross-section on the first major side of said foam body, said hills being separated by valleys of a substantially uniform depth and uniform cross-section, each of said hills having a top, each of said valleys having an airflow channel terminating at the valley floor and extending through said foam body to the second major side; and the second major side being substantially flat with a plurality of air channel cores terminating at the second major side underneath a plurality of the hills with a plurality of said air channel cores extending close to the top of the hills; whereby the tops of the hills support a human anatomy with even weight distribution and reduced contact pressure, while facilitating increased air circulation to the parts of the human anatomy in contact with the support pad.
Claim 3
Dependent Claim
23 words
The support pad of claim 1 wherein said air channel cores equal in number, the number of hills on the first major side.
Claim 4
Dependent Claim
27 words
The support pad of claim 1 wherein said air channel cores are placed at locations in the pad body where a reduction in contact pressure is desired.
Claim 5
Dependent Claim
42 words
The support pad of claim 1 wherein a plurality of said air channel cores extend from the second major side of said pad completely through the body of the pad terminating at the tops of the hills on the first major side.
Claim 6
Dependent Claim
23 words
The support pad of claim 4 wherein said air channel cores equal in number the number of hills on the first major side.
References Cited (Backward Citations)
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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) | 1992-09-18 | 1993-03-20 | 1993-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-18 | 1997-03-20 | 1997-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-18 | 2001-03-20 | 2001-09-19 | $7700.00 | Window Closed / Lapsed |