Brushing – scrubbing – and general cleaning – Implements – Sponge or sponge with holder
Reexamination Certificate
1999-11-29
2001-01-16
Chin, Randall E. (Department: 1744)
Brushing, scrubbing, and general cleaning
Implements
Sponge or sponge with holder
C015S191100, C015S205000, C015SDIG004
Reexamination Certificate
active
06173471
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an improved structure of a brush, more particularly to one with a dovetail engagement in the handle, a ferrule, and an additional adjustment means with a blade sticking into the bristles to control the hardness of the bristles and the size of the application area.
2. Description of the Prior Art
A prior art brush comprises a handle and bristles adhered to each other. Usually, the brush is discarded within two or three applications since the bristles easily detach due to poor adhesion with the handle. The hardness of the bristles is not easily controlled due to the manufacturing process and bristle hardness is not often easily distributed throughout the brush. In practice, many different brushes, in various sizes, must be used to get a job done, thus increasing costs.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a modified structure of a brush having an adjustment means, with a blade sticking into the bristles, the adjustment means being movable within the bristles to control both the area of application and the hardness of the bristles, as desired. Furthermore, the handle and the ferrule are dovetailed, allowing interchangeability between handles and ferrules, depending on the job requirements.
REFERENCES:
patent: 5483723 (1996-01-01), Wenzer
patent: 238011 (1911-09-01), None
patent: 852199 (1960-10-01), None
Chin Randall E.
Rosenberg , Klein & Lee
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