Patent US5239723A successfully refreshed from Google Patents.
US5239723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gelatinous elastomer swabs
Assignee: Applied Elastomerics Inc
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Filing: 1992-08-24
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Granted: 1993-08-31
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Expires: 2012-08-24
Abstract
Abstract A novel reusable swab having a gelatinous elastomer swab head attached to one or both ends of a handle is disclosed. The gelatinous elastomer swab head exhibits a combination of properties including unexpectedly high elongation and tensile strength and excellent shape retention after extreme deformation under high-velocity impact and stress conditions. The gelatinous elastomer swabs of this invention are soft, flexible, and have elastic memory, characterized by a gel rigidity of from about 20 gram to about 800 gram Bloom. These and other properties are particularly essential for cleaning various surfaces, deeply recessed areas small crevices, curved surfaces, various hard-to-clean corners of a car interior, other nooks and crannies, and the like.
Inventors
- 👤 John Y. Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:37
CPC Classifications
C; C08; C08L; C08L51/00; A; A61; A61C; A61C15/00; A61C15/04; A61C15/041; A63; A63H; A63H33/00; A63H33/18; A63H33/185; C08K; C08K5/00; C08K5/01; C08L53/00; C08L53/02; C08L53/025
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
85 words
A reusable swab comprising; (a) a handle; (b) a gelatinous elastomer swab head, and (c) means for attaching said swab head to one or both ends of said handle, said gelatinous elastomer swab head formed from a composition comprising: (i) 100 parts by weight of a high viscosity triblock copolymer of the general configuration poly(styrene-ethylene-butylene-styrene); (ii) from about 300 to about 1,600 parts by weight of a plasticizing oil; said composition characterized by a gel rigidity of from about 20 to about 800 gram Bloom.
Claim 2
Dependent Claim
85 words
A reusable swab comprising; (a) a handle; (b) a gelatinous elastomer swab head, and (c) means for attaching said swab head to one or both ends of said handle, said gelatinous elastomer swab head formed from a composition comprising: (i) 100 parts by weight of a high viscosity triblock copolymer of the general configuration poly(styrene-ethylene-butylene-styrene); (ii) from about 300 to about 1,600 parts by weight of a plasticizing oil; said composition characterized by a gel rigidity of from about 20 to about 800 gram Bloom.
Claim 3
Dependent Claim
25 words
A reusable swab according to claim 1, wherein said styrene to ethylene and butylene is of a ratio of from about 20:80 to about 40:60.
Claim 4
Dependent Claim
25 words
A reusable swab according to claim 1, wherein said styrene to ethylene and butylene is of a ratio of from about 30:70 to about 40:60.
Claim 5
Dependent Claim
25 words
A reusable swab according to claim 1, wherein said styrene to ethylene and butylene is of a ratio of from about 31:69 to about 40:60.
Claim 6
Dependent Claim
90 words
A reusable swab comprising: (a) a handle, and (b) a gelatinous elastomer swab head; wherein said swab head is interlocked with an open cell foam attached to one or both ends of said handle, said gelatinous elastomer swab head formed from a composition comprising: (i) 100 parts by weight of a high viscosity triblock copolymer of the general configuration poly(styrene-ethylene-butylene-styrene); (ii) from about 300 to about 1,600 parts by weight of a plasticizing oil; said composition characterized by a gel rigidity of from about 20 to about 800 gram Bloom.
Claim 7
Dependent Claim
90 words
A reusable swab comprising: (a) a handle, and (b) a gelatinous elastomer swab head; wherein said swab head is interlocked with an open cell foam attached to one or both ends of said handle, said gelatinous elastomer swab head formed from a composition comprising: (i) 100 parts by weight of a high viscosity triblock copolymer of the general configuration poly(styrene-ethylene-butylene-styrene); (ii) from about 300 to about 1,600 parts by weight of a plasticizing oil; said composition characterized by a gel rigidity of from about 20 to about 800 gram Bloom.
Claim 8
Dependent Claim
37 words
A reusable swab according to claim 1 or 5, wherein said triblock copolymer is characterized by a Brookfield Viscosity of a 20 weight percent solid solution in toluene at 25° C. of at least about 1,800 cps.
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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) | 1996-08-30 | 1997-03-01 | 1997-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-30 | 2001-03-01 | 2001-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-30 | 2005-03-01 | 2005-08-31 | $7700.00 | Window Closed / Lapsed |