US4230752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cigarette burn proof artificial grass
Assignee: Brunswick Corp
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Filing: 1979-04-26
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Granted: 1980-10-28
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Expires: 1999-04-26
Abstract
Abstract An artificial grass product with pile fibers having a modulus of elasticity of from 25,000 p.s.i. to 100,000 p.s.i. and a moment of inertia of from 1.06×10 -10 in. 4 to 8.33×10 -9 in 4 . For fibers of rectangular cross-section the fiber dimensions range from 0.004 in. to 0.010 in. in thickness and 0.020 in. to 0.100 in. in width. The fibers or product made therefrom may be exposed to ionizing radiation to promote cross-linking and increase resistance to cigarette burning.
Inventors
- 👤 Joseph C. Benedyk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:31
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/44; D02G3/445; A; A41; A41G; A41G1/00; A41G1/009; D01; D01F; D01F6/00; D01F6/28; D01F6/30; E; E01; E01C; E01C13/00; E01C13/08; D10; D10B; D10B2505/00; D10B2505/20; D10B2505/202; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23957; Y10T428/23993
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
111 words
A cigarette burn proof artificial grass product, comprising: a pile fabric with twisted yarn comprised of a plurality of fibers made of an ethylene-vinyl acetate copolymer and having an elastic modulus of from 25,000 p.s.i. to 100,000 p.s.i. and a moment of inertia of from 1.06×10 -10 in. 4 to 8.33×10 -9 in. 4 , the fibers extending from and substantially perpendicular to a backing to which the fibers are secured, wherein the yarn is twisted at the part of emergence from the backing, and wherein the copolymer is cross-linked by exposure to an effective amount of ionizing radiation to achieve a gel content of from about 25 to 75 percent.
Claim 2
Dependent Claim
111 words
A cigarette burn proof artificial grass product, comprising: a pile fabric with twisted yarn comprised of a plurality of fibers made of an ethylene-vinyl acetate copolymer and having an elastic modulus of from 25,000 p.s.i. to 100,000 p.s.i. and a moment of inertia of from 1.06×10 -10 in. 4 to 8.33×10 -9 in. 4 , the fibers extending from and substantially perpendicular to a backing to which the fibers are secured, wherein the yarn is twisted at the part of emergence from the backing, and wherein the copolymer is cross-linked by exposure to an effective amount of ionizing radiation to achieve a gel content of from about 25 to 75 percent.
Claim 3
Dependent Claim
25 words
The artificial grass product of claim 1, wherein the copolymer comprises from 3 to 5 percent vinyl acetate and from 97 to 95 percent ethylene.
Claim 4
Dependent Claim
32 words
The artificial grass product of claim 2, wherein the fibers have a rectangular cross-section of from 0.004 in. to 0.010 in. in thickness and from 0.020 in. to 0.100 in. in width.
Claim 5
Dependent Claim
17 words
The artificial grass product of claim 3, wherein the copolymer contains a compound which enhances radiation cross-linking.
Claim 6
Dependent Claim
17 words
The artificial grass product of claim 4, wherein the compound is particulate silicon dioxide or titanium dioxide.
Claim 7
Dependent Claim
17 words
The artificial grass product of claim 3, wherein the ionizing radiation is from 5 to 100 megarads.
Claim 8
Dependent Claim
34 words
The artificial grass product of claim 3, wherein the polymeric material has dispersed therein an additive selected from the group consisting of colorants, fillers, flame retardants, ultraviolet stabilizers, antioxidants, antistatic agents and antisoiling agents.
Claim 9
Dependent Claim
14 words
The artificial grass product of claim 3, wherein the polymeric material contains an antioxidant.
Claim 10
Dependent Claim
15 words
The artificial grass product of claim 3, wherein the polymeric material contains an ultraviolet stabilizer.
Claim 11
Dependent Claim
23 words
the artificial grass product of claim 2, wherein the fibers have a generally circular cross-section of from 0.003 to 0.006 in. in diameter.
Claim 12
Dependent Claim
15 words
The artificial grass product of claim 1, wherein the fibers are tufted into the backing.
Claim 13
Dependent Claim
18 words
The artificial grass product of claim 1, wherein the fibers are woven into a warp and fill backing.
Claim 14
Dependent Claim
18 words
The artificial grass product of claim 1, wherein the fibers are knitted with the fibers of the backing.
Claim 15
Dependent Claim
104 words
A cigarette burn proof artificial grass product, comprising: a pile fabric with twisted yarn comprised of a single fiber made of an ethylene-vinyl acetate copolymer and having an elastic modulus of from 25,000 p.s.i. to 100,000 p.s.i. and a moment of inertia of from 1.06×10 -10 in. 4 to 8.33×10 -9 in. 4 , the yarn tufted into a backing to form successive rows of loops of the fiber which are cut to provide a cut-pile face, and wherein the copolymer is cross-linked by exposure to an effective amount of ionizing radiation to achieve a gel content of from about 25 to 75 percent.
Claim 16
Dependent Claim
104 words
A cigarette burn proof artificial grass product, comprising: a pile fabric with twisted yarn comprised of a single fiber made of an ethylene-vinyl acetate copolymer and having an elastic modulus of from 25,000 p.s.i. to 100,000 p.s.i. and a moment of inertia of from 1.06×10 -10 in. 4 to 8.33×10 -9 in. 4 , the yarn tufted into a backing to form successive rows of loops of the fiber which are cut to provide a cut-pile face, and wherein the copolymer is cross-linked by exposure to an effective amount of ionizing radiation to achieve a gel content of from about 25 to 75 percent.
Claim 17
Dependent Claim
25 words
The artificial grass product of claim 14, wherein the copolymer comprises from 3 to 5 percent vinyl acetate and from 97 to 95 percent ethylene.
Claim 18
Dependent Claim
32 words
The artificial grass product of claim 15, wherein the fibers have a rectangular cross-section of from 0.004 in. to 0.010 in. in thickness and from 0.020 in. to 0.100 in. in width.
Claim 19
Dependent Claim
17 words
The artificial grass product of claim 16, wherein the copolymer contains a compound which enhances radiation cross-linking.
Claim 20
Dependent Claim
16 words
The artificial grass product of claim 17, wherein the compound is silicon dioxide or titanium dioxide.
Claim 21
Dependent Claim
17 words
The artificial grass product of claim 16, wherein the ionizing radiation is from 5 to 100 megarads.
Claim 22
Dependent Claim
34 words
The artificial grass product of claim 16, wherein the polymeric material has dispersed therein an additive selected from the group consisting of colorants, fillers, flame retardants, ultraviolet stabilizers, antioxidants, antistatic agents and antisoiling agents.
Claim 23
Dependent Claim
14 words
The artificial grass product of claim 16, wherein the polymeric material contains an antioxidant.
Claim 24
Dependent Claim
15 words
The artificial grass product of claim 16, wherein the polymeric material contains an ultraviolet stabilzer.
Claim 25
Dependent Claim
23 words
The artificial grass product of claim 15, wherein the fibers have a generally circular cross-section of from 0.003 to 0.006 in. in diameter.
Claim 26
Dependent Claim
15 words
The artificial grass product of claim 14, wherein the fibers are tufted into the backing.
Claim 27
Dependent Claim
18 words
The artificial grass product of claim 14, wherein the fibers are woven into a warp and fill backing.
Claim 28
Dependent Claim
18 words
The artificial grass product of claim 14, wherein the fibers are knitted with the fibers of the backing.
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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) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |