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| Number | Title | Issue Date |
| 6543083 | Bristles having varying stiffness Bristle stiffness is varied by allowing a support beam that carries the bristles to undergo torsional movement in response to brushing action. Torsional movement is achieved by allowing the support beam to be disconnected to the brush head along at least ... | 04/08/2003 |
| 6351868 | Bristle sub-assemblies having parallel pairs of bristles; and methods An apparatus for forming bristle sub-assemblies includes a vertically oriented slot, which is formed by two endless belts. A wheel disposed above the slot pushes a bristle string into the slot. The bristle string has a plurality of bristles connected to a... | 03/05/2002 |
| 6269514 | Monofilament bristle assemblies and methods of making brushes using same Several brush assemblies are disclosed. All employ bristle strings that include a base string connected to a plurality of monofilaments. The preferred monofilaments are nylons and other polymeric thermoplastic materials. The monofilaments may be linear se... | 08/07/2001 |
| 6173471 | Structure of a brush A brush structure is provided which allows for even distribution of paint to a surface and further provides for variable stiffness of the bristles. The brush has a handle (10) which engages a ferrule (12) through a dovetail slot (11). The ferrule (12) rec... | 01/16/2001 |
| 6009589 | Brush section for a toothbrush The invention is directed to a toothbrush having a brush section 20 comprising a bristle carrier 22 and bristles 24 fixedly secured thereto, with the brush section 20 being provided with components made of silver. Separate structures 28 are provided for f... | 01/04/2000 |
| 5926904 | Twisted tuft brush and method of making An abrading tool or brush is formed with an open center low density tuft. The tufts are laterally slightly compressed and encapsulated in a medium density elastomeric foam reinforcement having a density of from about 20 to about 50 lbs/cu/ft (320-800.90 K... | 07/27/1999 |
| 5724697 | Toothbrush construction A novel toothbrush staple for a holding a U shaped tuft of bristles in a tuft hole of a toothbrush head. The staple is generally flat and its lower edge is rounded to inhibit rupturing the bristles at the bight portion of a U shaped tuft of bristles mount... | 03/10/1998 |
| 5606762 | Roller brush for a sweeping machine and method of making same A roller brush and method of making same for sweeping machines for cleaning streets and roads. The brush includes cassettes arranged in brackets around the periphery of a roller and extending in the longitudinal direction of the roller. The cassettes rece... | 03/04/1997 |
| 5535474 | Brush for cleaning and polishing teeth while stimulating gums The invention is a brush for cleaning and polishing teeth while stimulating the gums. The invention consists of a handle with an integral head. The head has a flat surface with a plurality of recessed sockets. Affixed within the recessed sockets are the s... | 07/16/1996 |
| 5159736 | Brush construction A brush construction which includes a brush handle having a hollowed end portion for receiving a tuft of bristles. The tuft of bristles are reversely folded about a plastic filament, and the filament reversely folded whereby the free ends of the plastic f... | 11/03/1992 |
| 4741066 | Brush The invention relates to a brush which comprises a handle portion, a base portion formed with recesses for holding filaments or bristles, an insert which acts as holding means for holding the filaments or bristles in the recesses, and filaments or bristle... | 05/03/1988 |
| 4218804 | Cleaning broom of improved structure A cleaning broom comprises a layer of bristles provided with a plurality of slots extending along the main sides of the broom, a supporting core in the inside of the layer of bristles, a ring wrapped round the core and layer and provided with slots corres... | 08/26/1980 |
