Patent US5274846A successfully refreshed from Google Patents.
US5274846A
Expired / Lapsed
US
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Cushion having multilayer closed cell structure
Assignee: HPI Health Protection Inc
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Filing: 1991-07-31
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Granted: 1994-01-04
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Expires: 2011-07-31
Abstract
Abstract A cushion or pad comprises a first layer of a first synthetic cellular material having a first average cell volume and a second layer of a second synthetic cellular material having a second average cell volume at least ten times greater than the first average cell volume. The first layer is attached to the second layer so that the first layer and the second layer at least partially overlap one another to form a multilayer structure. The layer with the larger average cell volume is a polymeric sheet with at least a substantially planar array of fluid-filled pockets or chambers. The layer with the smaller average cell volume is a foam material with either open cells or closed cells. Further layers of fluid-filled chambers or foam material may be attached to the first two layers.
Inventors
- 👤 Rodger E. Kolsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:00
CPC Classifications
F; F16; F16F; F16F3/00; F16F3/08; F16F3/087; F16F3/093; A; A41; A41D; A41D13/00; A41D13/015; A41D13/0156; A41D13/05; A41D13/055; A41D13/0556; A41D13/0568; A41D31/00; A41D31/04; A41D31/28; A41D31/285; F16F1/00; F16F1/36; F16F1/373; F16F1/3737; F16F9/00; F16F9/02; F16F9/04; F16F9/049; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24612; Y10T428/24628; Y10T428/24661; Y10T428/249921; Y10T428/249953; Y10T428/249971; Y10T428/249972; Y10T428/249975; Y10T428/249976; Y10T428/249981
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
77 words
A cushion comprising: a first layer of a synthetic cellular material having an average cell volume; a second layer of a flexible polymeric material provided with an array of closed fluid-filled chambers having an average volume at least ten times greater than said average cell volume; and means for attaching said first layer to said second layer so that said first layer and said second layer at least partially overlap one another to form a multilayer structure.
Claim 2
Dependent Claim
77 words
A cushion comprising: a first layer of a synthetic cellular material having an average cell volume; a second layer of a flexible polymeric material provided with an array of closed fluid-filled chambers having an average volume at least ten times greater than said average cell volume; and means for attaching said first layer to said second layer so that said first layer and said second layer at least partially overlap one another to form a multilayer structure.
Claim 3
Dependent Claim
15 words
The cushion set forth in claim 1 wherein said cellular material is a foam material.
Claim 4
Dependent Claim
29 words
The cushion set forth in claim 2, further comprising a third layer of a foam material attached to at least one of said first layer and said second layer.
Claim 5
Dependent Claim
26 words
The cushion set forth in claim 3 wherein the foam material of at least one of said first layer and said third layer has open cells.
Claim 6
Dependent Claim
26 words
The cushion set forth in claim 3 wherein the foam material of at least one of said first layer and said third layer has closed cells.
Claim 7
Dependent Claim
24 words
The cushion set forth in claim 2 wherein said means for attaching includes an envelope which contains said first layer and said second layer.
Claim 8
Dependent Claim
14 words
The cushion set forth in claim 2 wherein said foam material has closed cells.
Claim 9
Dependent Claim
14 words
The cushion set forth in claim 2 wherein said foam material has open cells.
Claim 10
Dependent Claim
26 words
The cushion set forth in claim 2 wherein said means for attaching includes a layer of bonding material between said first layer and said second layer.
Claim 11
Dependent Claim
27 words
The cushion set forth in claim 2 wherein said means for attaching includes heat sealed welds of said first layer and said second layer to one another.
Claim 12
Dependent Claim
17 words
The cushion set forth in claim 1 wherein said array of fluid-filled chambers is a two-dimensional array.
Claim 13
Dependent Claim
24 words
The cushion set forth in claim 1, further comprising an envelope, said first layer and said second layer being removably inserted into said envelope.
Claim 14
Dependent Claim
28 words
The cushion set forth in claim 1, further comprising a cover member with a pocket, said first layer and said second layer being removably inserted in said pocket.
Claim 15
Dependent Claim
19 words
The cushion set forth in claim 1, further comprising means for releasably fastening the cushion to a person's body.
Claim 16
Dependent Claim
32 words
The cushion set forth in claim 1, further comprising means for releasably fastening the cushion to at least one of a suitcase handle, a boat docking post and a valise shoulder strap.
Claim 17
Dependent Claim
16 words
The cushion set forth in claim 1 wherein said multilayer structure is incorporated into a glove.
Claim 18
Dependent Claim
27 words
The cushion set forth in claim 1 wherein said multilayer structure includes a smooth surface, further comprising at least one game board printed on said smooth surface.
Claim 19
Dependent Claim
97 words
A cushion comprising: a first layer of a first synthetic cellular material having a first average cell volume; a second layer of a second synthetic cellular material having a second average cell volume at least ten times greater than said first average cell volume; means for attaching said first layer to said second layer so that said first layer and said second layer at least partially overlap one another to form a multilayer structure; and a third layer of essentially hard material and means for securing said first layer and said second layer to said third layer.
Claim 20
Dependent Claim
97 words
A cushion comprising: a first layer of a first synthetic cellular material having a first average cell volume; a second layer of a second synthetic cellular material having a second average cell volume at least ten times greater than said first average cell volume; means for attaching said first layer to said second layer so that said first layer and said second layer at least partially overlap one another to form a multilayer structure; and a third layer of essentially hard material and means for securing said first layer and said second layer to said third layer.
Claim 21
Dependent Claim
25 words
The cushion set forth in claim 18 wherein said third layer is in a form molded to conform to a body part of a person.
Claim 22
Dependent Claim
80 words
A cushion comprising: a first layer of a polymeric material provided with an array of closed fluid-filled chambers; a second layer of a cellular foam material having an average cell volume, said closed fluid-filled chambers having an average volume at least ten times greater than said average cellular volume; and means for attaching said first layer to said second layer so that said first layer and said second layer at least partially overlap one another to form a multilayer structure.
Claim 23
Dependent Claim
80 words
A cushion comprising: a first layer of a polymeric material provided with an array of closed fluid-filled chambers; a second layer of a cellular foam material having an average cell volume, said closed fluid-filled chambers having an average volume at least ten times greater than said average cellular volume; and means for attaching said first layer to said second layer so that said first layer and said second layer at least partially overlap one another to form a multilayer structure.
Claim 24
Dependent Claim
31 words
The cushion set forth in claim 20, further comprising a third layer of essentially hard material and means for securing said first layer and said second layer to said third layer.
Claim 25
Dependent Claim
25 words
The cushion set forth in claim 21 wherein said third layer is in a form molded to conform to a body part of a person.
Claim 26
Dependent Claim
14 words
The cushion set forth in claim 20 wherein said foam material has closed cells.
Claim 27
Dependent Claim
14 words
The cushion set forth in claim 20 wherein said foam material has open cells.
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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) | 1997-01-03 | 1997-07-05 | 1998-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-03 | 2001-07-05 | 2002-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-03 | 2005-07-05 | 2006-01-04 | $7700.00 | Window Closed / Lapsed |