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US5060337A
Expired / Lapsed
US
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Handbrush and method of manufacture thereof
Assignee: SWEEPA INSTRUMENTS Pty Ltd
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Filing: 1990-02-13
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Granted: 1991-10-29
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Expires: 2010-02-13
Abstract
Abstract A handbrush and method for the manufacture thereof, are disclosed. The handbrush comprises a head having a plurality of bristles thereon and handle extending from the head, the head, the bristles and the handle all being integrally moulded from a polymeric compound such as rubber. A rigid strengthening member may be embedded in the head and the handle and may be bent to impart a desired shape to the brush, e.g. for maintaining the handle at a desired angle to the head. The brush may be provided with a substantially longitudinally extending scraper blade which may also be integrally moulded with the head, the bristles and the handle. In addition, a groove may be provided in the head of the handbrush for receiving and holding an edge of a steel blade for removing ice from the windscreens of motor vehicles or the like.
Inventors
- 👤 Gerhard A. Van Niekerk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:43
CPC Classifications
A; A46; A46B; A46B1/00; A46B5/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
68 words
A handbrush comprising a head, a handle connected to the head, a rigid strengthening member imbedded in the head and in the handle, and a plurality of bristles projecting from the head; the head, the handle and the bristles being all integrally molded in one piece from an unvulcanized rubber compound formulated to impart to the handbrush, upon vulcanization thereof, a Shore hardness of between 55 and 65.
Claim 2
Dependent Claim
68 words
A handbrush comprising a head, a handle connected to the head, a rigid strengthening member imbedded in the head and in the handle, and a plurality of bristles projecting from the head; the head, the handle and the bristles being all integrally molded in one piece from an unvulcanized rubber compound formulated to impart to the handbrush, upon vulcanization thereof, a Shore hardness of between 55 and 65.
Claim 3
Dependent Claim
50 words
A handbrush as claimed in claim 1, in which the head is elongate in shape and the handle extends from one end of the head, the strengthening member comprising a spring steel rod bent such as to cause the handle to be disposed at an obtuse angle to the head.
Claim 4
Dependent Claim
51 words
A handbrush as claimed in claim 1, comprising a scraper blade for cleaning glass surfaces, the scraper blade being moulded together with the head, bristles and handle as one integral piece, extending longitudinally along a long side of the head, having a suitable thickness and having a substantially straight free edge.
Claim 5
Dependent Claim
56 words
A handbrush as claimed in claim 3, comprising a steel blade for removing ice from a motor vehicle's windscreen, the head being provided with a substantially longitudinally extending groove on a long side thereof opposite the side provided with the scraper blade, the longitudinally extending groove being adapted to receive and to hold the steel blade.
Claim 6
Dependent Claim
68 words
A handbrush comprising a head, a handle connected to the head, a rigid strengthening member imbedded in the head and in the handle, and a plurality of bristles projecting from the head; the head, the handle and the bristles being all integrally molded in one piece from a rubber component formulated to impart to the handbrush, upon vulcanization thereof, an elongation at break of between 550% and 660%.
Claim 7
Dependent Claim
68 words
A handbrush comprising a head, a handle connected to the head, a rigid strengthening member imbedded in the head and in the handle, and a plurality of bristles projecting from the head; the head, the handle and the bristles being all integrally molded in one piece from a rubber component formulated to impart to the handbrush, upon vulcanization thereof, an elongation at break of between 550% and 660%.
Claim 8
Independent Claim
124 words
A method of manufacturing a hairbrush comprising a head, a handle connected to the head, a rigid strengthening member embedded in the head and in the handle, and a plurality of bristles projecting from the head; the head, the handle and the bristles being integrally molded in one piece from a suitable unvulcanized rubber compound; the method including the steps of: molding the head, the handle and the bristles as one integral part from a suitable unvulcanized rubber compound; embedding in the head and the handle the rigid strengthening member; and vulcanizing the handbrush so as to impart to it a Shore hardness of between 55 and 65 (as measured on the A scale) and an elongation at break of between 550% and 660%.
Claim 9
Independent Claim
124 words
A method of manufacturing a hairbrush comprising a head, a handle connected to the head, a rigid strengthening member embedded in the head and in the handle, and a plurality of bristles projecting from the head; the head, the handle and the bristles being integrally molded in one piece from a suitable unvulcanized rubber compound; the method including the steps of: molding the head, the handle and the bristles as one integral part from a suitable unvulcanized rubber compound; embedding in the head and the handle the rigid strengthening member; and vulcanizing the handbrush so as to impart to it a Shore hardness of between 55 and 65 (as measured on the A scale) and an elongation at break of between 550% and 660%.
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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) | 1994-10-28 | 1995-04-29 | 1995-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-28 | 1999-04-29 | 1999-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-28 | 2003-04-29 | 2003-10-29 | $7700.00 | Window Closed / Lapsed |