Patent DE880259C successfully refreshed from Google Patents.
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US4635313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush with self retaining bristles
Assignee: ANCHOR ACQUISITION CORP A CORP OF
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Filing: 1985-10-24
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Granted: 1987-01-13
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Expires: 2005-10-24
Abstract
Abstract A process for manufacturing a brush having an integral bristle retention feature. One end of each bristle tuft to be inserted into a molded brush body is fused into a ball-shaped mass. The body is molded around the mass, thereby anchoring the tufts in the body.
Inventors
- 👤 Friedbert Fassler
- 👤 Frank Kigyos
- 👤 Bobby L. Slaughter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:10
CPC Classifications
A; A46; A46D; A46D3/00; A46D3/005; A46B; A46B3/00; A46B3/04; A46B3/06; A46B5/00; A46B9/00; A46B9/02; A46B9/04; B; B29; B29C; B29C45/00; B29C45/14; B29C45/14336; B29C45/14385; A46B2200/00; A46B2200/10; A46B2200/1066; B29C2045/14393; B29C2045/14401; B29L; B29L2031/00; B29L2031/42; B29L2031/425
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
124 words
A brush comprising an injection molded body and at least one tuft of bristles having an end thereof retained in said body, characterized in that said end comprises a fused mass having a cross-sectional area larger than that of the tuft, said fused mass being disposed immediately adjacent a face of the body from which the tuft projects, thereby facilitating plugging of a tuft-receiving hole in a mold in which the body is formed, said body being molded around said fused mass such that it defines a cavity conforming to the shape of the fused mass and having in said face an opening with a cross-sectional area smaller than that of the fused mass, thereby effecting retention of the tuft end in the body.
Claim 2
Dependent Claim
124 words
A brush comprising an injection molded body and at least one tuft of bristles having an end thereof retained in said body, characterized in that said end comprises a fused mass having a cross-sectional area larger than that of the tuft, said fused mass being disposed immediately adjacent a face of the body from which the tuft projects, thereby facilitating plugging of a tuft-receiving hole in a mold in which the body is formed, said body being molded around said fused mass such that it defines a cavity conforming to the shape of the fused mass and having in said face an opening with a cross-sectional area smaller than that of the fused mass, thereby effecting retention of the tuft end in the body.
Claim 3
Dependent Claim
15 words
A brush as in claim 1 where the enlarged fused mass has a circular cross-section.
Claim 4
Dependent Claim
15 words
A brush as in claim 1 where the enlarged fused mass has an elongated cross-section.
Claim 5
Dependent Claim
20 words
A brush as in claim 1 where all of the bristles of the brush are formed into a single tuft.
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) | 1990-01-12 | 1990-07-14 | 1991-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-12 | 1994-07-14 | 1995-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-12 | 1998-07-14 | 1999-01-13 | $7700.00 | Window Closed / Lapsed |