US5475882A
Expired / Lapsed
US
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Gel filled deformable cushion and composition contained therein
Assignee: POWER PLANT INVESTORS LLC
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Filing: 1993-10-15
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Granted: 1995-12-19
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Expires: 2013-10-15
Abstract
Abstract This invention provides for a gel filled deformable cushion (10) which includes a fluid impervious flexible enclosure (12) forming an internal chamber (14). Contained within the internal chamber (14) is a plasticizer composition (16) and a plurality of particulates (18) dispersed within the plasticizer composition (16). The particulates (18) are spherically contoured and have a density which is less than the density of the plasticizer composition (16) for increasing resiliency, deformability and memory of the overall composition within the cushion (10).
Inventors
- 👤 Joel L. Sereboff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:06
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/08; A47C27/086; A47C27/085; A61; A61G; A61G7/00; A61G7/05; A61G7/057; A61G7/05738
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
73 words
A deformable low density gel composition comprising: (a) a plasticizer composition having a first predetermined density; (b) a plurality of particulates dispersed within said plasticizer composition, said particulates being substantially spherical in contour and having a second predetermined density less than said first predetermined density of said plasticizer composition; and (c) said gel composition has about 80% by weight of said plasticizer composition to about 20% by weight of said plurality of particulates.
Claim 2
Dependent Claim
73 words
A deformable low density gel composition comprising: (a) a plasticizer composition having a first predetermined density; (b) a plurality of particulates dispersed within said plasticizer composition, said particulates being substantially spherical in contour and having a second predetermined density less than said first predetermined density of said plasticizer composition; and (c) said gel composition has about 80% by weight of said plasticizer composition to about 20% by weight of said plurality of particulates.
Claim 3
Dependent Claim
20 words
The deformable low density gel composition as recited in claim 1 where said plasticizer composition is an alkyl phthalate composition.
Claim 4
Dependent Claim
19 words
The deformable low density gel composition as recited in claim 2 where said alkyl phthalate composition is diisononyl phthalate.
Claim 5
Dependent Claim
22 words
The deformable low density gel composition as recited in claim 2 where said alkyl phthalate composition includes a density approximating 1.0 gm/cc.
Claim 6
Dependent Claim
25 words
The deformable low density gel composition as recited in claim 1 where said particulates dispersed within said plasticizer composition are formed of a plastic composition.
Claim 7
Dependent Claim
24 words
The deformable low density gel composition as recited in claim 5 where said particulates are plastic microspheres having a diameter greater than 400 microns.
Claim 8
Dependent Claim
21 words
The deformable low density gel composition as recited in claim 6 where said plastic microspheres have a density approximating 0.022 gm/cc.
Claim 9
Dependent Claim
25 words
The deformable low density gel composition as recited in claim 1 where said particulates dispersed within said plasticizer composition are formed of ceramic composition microspheres.
Claim 10
Dependent Claim
23 words
The deformable low density gel composition as recited in claim 8 where said ceramic composition microspheres include a diameter greater than 400 microns.
Claim 11
Dependent Claim
22 words
The deformable low density gel composition as recited in claim 8 where said ceramic composition microspheres have a density approximating 0.7 gm/cc.
Claim 12
Dependent Claim
86 words
A gel filled deformable cushion comprising: (a) a fluid impervious flexible enclosure forming an internal chamber; (b) a plasticizer composition within said internal chamber having a first predetermined density; (c) a plurality of particulates dispersed within said plasticizer composition, said particulates being substantially spherical in contour and having a second predetermined density less than said first predetermined density of said plasticizer composition; and (d) said gel composition has about 80% by weight of said plasticizer composition to about 20% by weight of said plurality of particulates.
Claim 13
Dependent Claim
86 words
A gel filled deformable cushion comprising: (a) a fluid impervious flexible enclosure forming an internal chamber; (b) a plasticizer composition within said internal chamber having a first predetermined density; (c) a plurality of particulates dispersed within said plasticizer composition, said particulates being substantially spherical in contour and having a second predetermined density less than said first predetermined density of said plasticizer composition; and (d) said gel composition has about 80% by weight of said plasticizer composition to about 20% by weight of said plurality of particulates.
Claim 14
Dependent Claim
31 words
The gel filled deformable cushion as recited in claim 11 where said spherically contoured particulates are selected from the group consisting of plastic composition microspheres, ceramic composition microspheres and combinations thereof.
Claim 15
Dependent Claim
21 words
The gel filled deformable cushion as recited in claim 12 where said plastic composition microspheres include a density approximating 0.022 gm/cc.
Claim 16
Dependent Claim
21 words
The gel filled deformable cushion as recited in claim 12 where said ceramic composition microspheres include a density approximating 0.7 gm/cc.
Claim 17
Dependent Claim
23 words
The gel filled deformable cushion as recited in claim 12 where said spherically contoured particulates include a spherical diameter greater than 400 microns.
Claim 18
Dependent Claim
26 words
The gel filled deformable cushion as recited in claim 12 where said plasticizer composition includes a density within the approximating range of 0.8 to 1.2 gm/cc.
Claim 19
Dependent Claim
20 words
The gel filled deformable cushion as recited in claim 12 where said plasticizer composition includes a density approximating 1.0 gm/cc.
Claim 20
Dependent Claim
19 words
The gel filled deformable cushion as recited in claim 16 where said plasticizer composition is an alkyl phthalate composition.
Claim 21
Dependent Claim
17 words
The gel filled deformable cushion as recited in claim 16 where said plasticizer composition is diisononyl phthalate.
Claim 22
Dependent Claim
59 words
A deformable low density gel composition comprising: (a) a plasticizer composition having a first predetermined density; and (b) a plurality of particulates dispersed within said plasticizer composition, said particulates being substantially spherical in contour and having a second predetermined density less than said first predetermined density of said plasticizer composition; and (c) said plasticizer composition is an alkylphthalate composition.
Claim 23
Dependent Claim
59 words
A deformable low density gel composition comprising: (a) a plasticizer composition having a first predetermined density; and (b) a plurality of particulates dispersed within said plasticizer composition, said particulates being substantially spherical in contour and having a second predetermined density less than said first predetermined density of said plasticizer composition; and (c) said plasticizer composition is an alkylphthalate composition.
Claim 24
Dependent Claim
17 words
The deformable low density gel composition as recited in claim 20 where said alkylphthalate composition is diisononylphthalate.
Claim 25
Dependent Claim
21 words
The deformable low density gel composition as recited in claim 20 where said alkylphthalate composition includes a density approximating 1.0 gm/cc.
Claim 26
Dependent Claim
72 words
A gel filled deformable cushion comprising: (a) a fluid impervious flexible enclosure forming an internal chamber; (b) a plasticizer composition within said internal chamber having a first predetermined density; and (c) a plurality of particulates dispersed within said plasticizer composition, said particulates being substantially spherical in contour and having a second predetermined density less than said first predetermined density of said plasticizer composition; and (d) said plasticizer composition is an alkylphthalate composition.
Claim 27
Dependent Claim
72 words
A gel filled deformable cushion comprising: (a) a fluid impervious flexible enclosure forming an internal chamber; (b) a plasticizer composition within said internal chamber having a first predetermined density; and (c) a plurality of particulates dispersed within said plasticizer composition, said particulates being substantially spherical in contour and having a second predetermined density less than said first predetermined density of said plasticizer composition; and (d) said plasticizer composition is an alkylphthalate composition.
Claim 28
Dependent Claim
16 words
The gel filled deformable cushion as recited in claim 23, where said plasticizer composition is diisononylphthalate.
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) | 1998-12-18 | 1999-06-19 | 1999-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-18 | 2003-06-19 | 2003-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-18 | 2007-06-19 | 2007-12-19 | $7700.00 | Window Closed / Lapsed |