US3674019A
Expired / Lapsed
US
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Dual layer cellular inflatable pad
Assignee: Grant Airmass Corp
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Filing: 1970-10-23
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Granted: 1972-07-04
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Expires: 1990-10-23
Abstract
Abstract A dual layer cellular inflatable pad having the cells of each interfitting with the cells of the adjacent layer. The cells of one layer may be alternately inflated and deflated. The layers have a manifold across and adjacent the longitudinal cell ends with a small continuation of the cells on the end sealed side of the manifold to prevent arching or curling of the pad.
Inventors
- 👤 Benton H Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:53
CPC Classifications
A; A61; A61H; A61H9/00; A61H9/005; A61H9/0078; A61G; A61G7/00; A61G7/05; A61G7/057; A61G7/05769; A61G7/05776; B; B60; B60N; B60N2/00; B60N2/90; B60N2/914; B60N2/976; A61H2201/00; A61H2201/01; A61H2201/0119; A61H2201/0134; A61H2201/0138; A61H2201/0142; A61H2201/0146
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
109 words
An inflatable pad comprising: A. a first inflatable cellular layer having 1. a first fluid manifold means connecting a first plurality of cells for inflation and, 2. a second fluid manifold means connecting a second plurality of cells for inflation, B. a second cellular cushioning layer alternately interfitted with the cells of said first inflatable cellular layer in tangential relationship thereto, 1. the central plane of said second layer being spaced from The central plane of said first layer, and C. inflation inlet means connected to said first and second fluid manifold means of said first layer, said second cushioning layer acting to support said first inflatable cellular layer.
Claim 2
Dependent Claim
109 words
An inflatable pad comprising: A. a first inflatable cellular layer having 1. a first fluid manifold means connecting a first plurality of cells for inflation and, 2. a second fluid manifold means connecting a second plurality of cells for inflation, B. a second cellular cushioning layer alternately interfitted with the cells of said first inflatable cellular layer in tangential relationship thereto, 1. the central plane of said second layer being spaced from The central plane of said first layer, and C. inflation inlet means connected to said first and second fluid manifold means of said first layer, said second cushioning layer acting to support said first inflatable cellular layer.
Claim 3
Dependent Claim
34 words
a second fluid manifold means connecting a second plurality of cells for inflation, B. a second cellular cushioning layer alternately interfitted with the cells of said first inflatable cellular layer in tangential relationship thereto,
Claim 4
Dependent Claim
34 words
a second fluid manifold means connecting a second plurality of cells for inflation, B. a second cellular cushioning layer alternately interfitted with the cells of said first inflatable cellular layer in tangential relationship thereto,
Claim 5
Dependent Claim
54 words
The inflatable pad defined in claim 1 wherein said first and second cells of said first layer are elongated substantially over a lateral dimension of said pad in alternating parallel relationship and said cells of said second layer are similarly elongated and interposed in a parallel relationship with said cells of said first layer.
Claim 6
Dependent Claim
19 words
first and second fluid manifold means for alternate independent inflation of said cells, B. a second inflatable layer having
Claim 7
Dependent Claim
19 words
first and second fluid manifold means for alternate independent inflation of said cells, B. a second inflatable layer having
Claim 8
Dependent Claim
39 words
said second layer cells being of substantially the same diameter and length and being spaced apart substantially the same as said first layer cells, C. said first and second inflatable layers being juxtaposed against and secured to one another,
Claim 9
Dependent Claim
39 words
said second layer cells being of substantially the same diameter and length and being spaced apart substantially the same as said first layer cells, C. said first and second inflatable layers being juxtaposed against and secured to one another,
Claim 10
Dependent Claim
32 words
the central plane of said second layer being spaced from the central plane of said first layer, and D. fluid pressure means connected to said manifolds of said first layer cells comprising
Claim 11
Dependent Claim
32 words
the central plane of said second layer being spaced from the central plane of said first layer, and D. fluid pressure means connected to said manifolds of said first layer cells comprising
Claim 12
Dependent Claim
12 words
valve means for inflating and deflating said cells of said first layer.
Claim 13
Dependent Claim
12 words
valve means for inflating and deflating said cells of said first layer.
Claim 14
Dependent Claim
28 words
said second layer supporting and interfitting with said cells of said first layer to retain same against lateral movement upon imposition of a body on said first layer.
Claim 15
Dependent Claim
28 words
said second layer supporting and interfitting with said cells of said first layer to retain same against lateral movement upon imposition of a body on said first layer.
Claim 16
Dependent Claim
66 words
The inflatable pad as defined in claim 2 wherein said elongated cells are provided with branching ends terminating at a side of said manifold from the main body of said layer, with said manifold being adjacent an edge of said layer and wherein there are provided cell extensions on the other side of said manifold to alleviate buckling of said layer along said manifold when inflated.
Claim 17
Dependent Claim
33 words
The inflatable pad as defined in claim 1 wherein said inflation means comprises fluid pump means and valve means for alternately inflating and deflating said first and second cells of said first layer.
Claim 18
Dependent Claim
11 words
An inflatable pad assembly comprising: A. a first inflatable layer having
Claim 19
Dependent Claim
11 words
An inflatable pad assembly comprising: A. a first inflatable layer having
Claim 20
Dependent Claim
38 words
The inflatable pad assembly defined in claim 5 wherein said first inflatable layer is provided with a plurality of smaller diameter elongated inflatable cells each branching from the main elongated inflatable cells adjacent one end of said pad.
Claim 21
Dependent Claim
51 words
A dual layer pad for supporting a human body thereon, comprising: A. a first layer having a plurality of inflatable cells substantially covering at least a portion of a body supporting surface thereof; and B. a second cushioning layer juxtaposed against said first layer at the surface opposite said supporting surface,
Claim 22
Dependent Claim
51 words
A dual layer pad for supporting a human body thereon, comprising: A. a first layer having a plurality of inflatable cells substantially covering at least a portion of a body supporting surface thereof; and B. a second cushioning layer juxtaposed against said first layer at the surface opposite said supporting surface,
Claim 23
Dependent Claim
41 words
In an inflatable structure having a plurality of longitudinal inflatable cells arranged substantially parallel to one another A. means forming a manifold adjacent an edge of said structure and having a side thereof in fluid communication with each of said cells,
Claim 24
Dependent Claim
41 words
In an inflatable structure having a plurality of longitudinal inflatable cells arranged substantially parallel to one another A. means forming a manifold adjacent an edge of said structure and having a side thereof in fluid communication with each of said cells,
Claim 25
Dependent Claim
32 words
The structure defined in claim 8 wherein said cells are formed by seal lines and said cell continuations are formed by an undulating seal line along the manifold edge of said structure.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |