Patent US4828908A successfully refreshed from Google Patents.
US4828908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vandal resistant seat
Assignee: Hendersons Industries Pty Ltd
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Filing: 1988-04-29
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Granted: 1989-05-09
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Expires: 2008-04-29
Abstract
Abstract An cut-resistant seat or seating material is disclosed together with methods of forming such a material. The material comprises at least one layer of flexible metal or non-metal matrix material embedded within a compressed flexible foam material. The foam material may be a fire retardant flame material.
Inventors
- 👤 Ronald S. Park
- 👤 John A. Clements
- 👤 William H. Maloney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:43
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/18; A47C7/20; B; B32; B32B; B32B15/00; B32B15/04; B32B15/046; A47C7/24; A47C7/26; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/1209; B29C44/34; B29C44/56; B29C44/5609; B32B5/00; B32B5/18; B32B5/20; B29K; B29K2705/00; B29K2995/00; B29K2995/0012; B29K2995/0016; B29L; B29L2031/00; B29L2031/771; B32B2260/00; B32B2260/02; B32B2260/021; B32B2307/00; B32B2307/30; B32B2307/306; B32B2307/3065; B32B2601/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/24996; Y10T428/249981; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/109; Y10T442/114; Y10T442/184; Y10T442/188; Y10T442/195; Y10T442/20; Y10T442/2631
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
75 words
A cut-resistant seat covering material comprising at least one layer of a substantially incompressible flexible matrix material embedded within a compressed flexible foam polymer material, said flexible foam polymer material being formed from an uncured or partially cured expanded flexible foam polymer material which has been compressed in a ratio of from 3:1 to 30:1, whereby substantially all of the gas produced during foaming of said expandable flexible foam polymer material has been removed therefrom.
Claim 2
Dependent Claim
75 words
A cut-resistant seat covering material comprising at least one layer of a substantially incompressible flexible matrix material embedded within a compressed flexible foam polymer material, said flexible foam polymer material being formed from an uncured or partially cured expanded flexible foam polymer material which has been compressed in a ratio of from 3:1 to 30:1, whereby substantially all of the gas produced during foaming of said expandable flexible foam polymer material has been removed therefrom.
Claim 3
Dependent Claim
37 words
An article as claimed in claim 1, said flexible foam polymer material being formed from an uncured or partially cured expanded flexible foam polymer material which has been compressed in a ratio of from 3:1 to 15:1.
Claim 4
Dependent Claim
13 words
An article as claimed in claim 1, said matrix material being a metal.
Claim 5
Dependent Claim
13 words
An article as claimed in claim 1, said matrix material being a non-metal.
Claim 6
Dependent Claim
17 words
An article as claimed in claim 1, said matrix material being a woven mat of metal fibers.
Claim 7
Dependent Claim
17 words
An article as claimed in claim 1, said matrix material being a woven mat of metal wires.
Claim 8
Dependent Claim
17 words
An article as claimed in claim 1, said matrix material being a non-woven mat of metal fibers.
Claim 9
Dependent Claim
17 words
An article as claimed in claim 1, said matrix material being a non-woven mat of metal wires.
Claim 10
Dependent Claim
38 words
A cut-resistant seat covering material comprising at least one layer of a substantially incompressible flexible matrix material embedded within a compressed flexible foam polymer material from which substantially all of the gas produced during foaming has been removed.
Claim 11
Dependent Claim
38 words
A cut-resistant seat covering material comprising at least one layer of a substantially incompressible flexible matrix material embedded within a compressed flexible foam polymer material from which substantially all of the gas produced during foaming has been removed.
Claim 12
Dependent Claim
13 words
An article as claimed in claim 9, said matrix material being a metal.
Claim 13
Dependent Claim
13 words
An article as claimed in claim 9, said matrix material being a non-metal.
Claim 14
Dependent Claim
17 words
An article as claimed in claim 9, said matrix material being a woven mat of metal fibers.
Claim 15
Dependent Claim
17 words
An article as claimed in claim 9, said matrix material being a woven mat of metal wires.
Claim 16
Dependent Claim
17 words
An article as claimed in claim 9, said matrix material being a non-woven mat of metal fibers.
Claim 17
Dependent Claim
17 words
An article as claimed in claim 9, said matrix material being a non-woven mat of metal wires.
Claim 18
Dependent Claim
16 words
An article as claimed in claim 9 in which said matrix is a woven wire mesh.
Claim 19
Dependent Claim
19 words
An article as claimed in claim 9 in which said matrix material is a stainless steel woven wire mesh.
Claim 20
Dependent Claim
25 words
An article as claimed in claim 9 in which said matrix material is a mesh of 6 mesh 20 gauge 304 woven stainless steel wire.
Claim 21
Dependent Claim
21 words
An article as claimed in claim 9 in which said flexible foam polymer material is a fire retardant foam polymer material.
Claim 22
Dependent Claim
16 words
An article as claimed in claim 1 in which said matrix is a woven wire mesh.
Claim 23
Dependent Claim
19 words
An article as claimed in claim 1 in which said matrix material is a stainless steel woven wire mesh.
Claim 24
Dependent Claim
25 words
An article as claimed in claim 1 in which said matrix material is a mesh of 6 mesh 20 gauge 304 woven stainless steel wire.
Claim 25
Dependent Claim
21 words
An article as claimed in claim 1 in which said flexible foam polymer material is a fire retardant foam polymer material.
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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) | 1992-05-08 | 1992-11-07 | 1993-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-08 | 1996-11-07 | 1997-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-08 | 2000-11-07 | 2001-05-09 | $7700.00 | Window Closed / Lapsed |