Patent US4497072A successfully refreshed from Google Patents.
US4497072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous coated glove
Assignee: TOWA GLOVE CO Ltd
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Filing: 1982-11-17
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Granted: 1985-02-05
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Expires: 2002-11-17
Abstract
Abstract A porous glove for use especially by workers and motorcyclists made of fabric material with a coating layer, the coating layer has sharp projections in the shape of broken bubbles whereby the glove provides tenacious grip. In addition, a method for making the improved porous glove is provided.
Inventors
- 👤 Hiroshi Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:14
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/14; A; A41; A41D; A41D19/00; A41D19/0055; A41D19/0058; A41D19/0065; A41D19/015; A41D19/01547; A41D19/01558; A41D2600/00; A41D2600/10; A41D2600/102
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
76 words
A porous hand covering comprising a fabric glove base and a rubber or resin coating layer thereon, said coating layer including gripping projections projecting outward from said glove base and a plurality of depressions in said coating layer wherein said depressions form coating layer-free areas on said glove base whereby the portions of said glove base containing said depressions permit air penetration and ventilation to the inside of said glove and provide said glove with flexibility.
Claim 2
Dependent Claim
76 words
A porous hand covering comprising a fabric glove base and a rubber or resin coating layer thereon, said coating layer including gripping projections projecting outward from said glove base and a plurality of depressions in said coating layer wherein said depressions form coating layer-free areas on said glove base whereby the portions of said glove base containing said depressions permit air penetration and ventilation to the inside of said glove and provide said glove with flexibility.
Claim 3
Dependent Claim
36 words
The porous hand covering of claim 1, wherein said fabric glove base is formed from a material selected from the group consisting of knitted fabrics, woven fabrics, staple fiber materials, synthetic fiber fabrics and cotton fabrics.
Claim 4
Dependent Claim
25 words
The porous hand covering of claim 1, wherein said coating layer is selected from the group consisting of a natural resin and a synthetic resin.
Claim 5
Dependent Claim
26 words
The porous hand covering of claim 3, wherein said synthetic resin is a member selected from the group consisting of polyvinyl chloride, polyvinyl acetate and polyurethane.
Claim 6
Dependent Claim
16 words
The porous hand covering of claim 1, wherein said coating layer is a natural rubber latex.
Claim 7
Independent Claim
104 words
A method for making a porous hand covering comprising a fabric glove base and a coating layer coated thereon, said method comprising the steps of: (a) coating a fabric glove base with a foaming solution of rubber or resin; (b) subjecting the thus produced coated glove base to reduced pressure sufficient to cause the bubbles to burst; and (c) heat treating the glove to shape and cure the coating layer thereby forming a coating layer with gripping projections projecting outward from said glove base and a plurality of depressions in said coating layer wherein said depressions form coating layer-free areas on said glove base.
Claim 8
Independent Claim
104 words
A method for making a porous hand covering comprising a fabric glove base and a coating layer coated thereon, said method comprising the steps of: (a) coating a fabric glove base with a foaming solution of rubber or resin; (b) subjecting the thus produced coated glove base to reduced pressure sufficient to cause the bubbles to burst; and (c) heat treating the glove to shape and cure the coating layer thereby forming a coating layer with gripping projections projecting outward from said glove base and a plurality of depressions in said coating layer wherein said depressions form coating layer-free areas on said glove base.
Claim 9
Dependent Claim
18 words
The method according to claim 6, wherein said glove base is dipped or immersed into said foaming solution.
Claim 10
Dependent Claim
21 words
The method according to claim 6, wherein said foaming solution contains bubbles of about 0.2 to about 2.0 mm in diameter.
Claim 11
Dependent Claim
17 words
The method according to claim 6, wherein said foaming solution has a viscosity of about 500 cp.
Claim 12
Dependent Claim
18 words
The method according to claim 6, wherein said foaming solution contains rough particles to provide larger grip projections.
Claim 13
Dependent Claim
17 words
The method according to claim 6, wherein said reduced pressure to step (b) is about 400 mm/Hg.
References Cited (Backward Citations)
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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) | 1988-02-05 | 1988-08-06 | 1989-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-05 | 1992-08-06 | 1993-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-05 | 1996-08-06 | 1997-02-05 | $7700.00 | Window Closed / Lapsed |