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US 5,636,904 AGranted
Brush construction
AssigneeFlo-Pac Corporation
InventorsWilliam E. Bell, Maurice R. Brosio
Life of this patent
Estimating the term…
Abstract
A brush designed with a hook built into the handle for hanging the brush on the side of a can or container. The brush is formed by a new method in which the tufts have a tapered knot and the handle is molded around the tapered knot such that the knot is anchored in the handle.
Claims14
A method of forming a tuft for a brush comprising the steps of:
- providing a plurality of bristles, defining first and second ends thereon, and a mold defining a first side and second side and having an opening extending from the first side to the second side, the opening defining (1) a first region adjacent to the second side and having a first cross-section corresponding to the final cross-section of the bristles for the tuft, and (2) a second region extending between the first region and the first side and having an inside contour that increases in cross-sectional area from the first region to the first side;
- extending the plurality of bristles into the opening of the mold such that the first end of the bristles extends into the second region of the opening;
- forming a knot on the bristles at the second region by pouring a hardenable substance into the second region of the opening and allowing the hardenable substance to harden, the knot having a resulting cross-sectional area which matches the inside contour of the second region;
- and
- removing the knot and bristles from the mold such that the cross-sectional area of the knot matches the inside contour of the second region.
2 more elements
A method of forming a brush comprising the steps of:
- forming a tuft for a brush comprising the steps of:
- providing a plurality of bristles, defining first and second ends thereon, and a mold defining a first side and second side and having an opening extending from the first side to the second side, the opening defining (1) a first region adjacent to the second side and having a first cross-section corresponding to the final cross-section of the bristles for the tuft, and (2) a second region extending between the first region and the first side;
- extending the plurality of bristles into the opening of the mold such that the first end of the bristles extends into the second region of the opening;
- forming a knot on the bristles at the second region by pouring a hardenable substance into the second region of the opening and allowing the hardenable substance to harden, the knot having a resulting cross-sectional area which matches the inside contour of the second region;
- and
- removing the knot and bristles from the mold such that the cross-sectional area of the knot matches the inside contour of the second region;
- and
- molding a handle around the knot such that once the molded handle is set, the tapered knot serves as an anchor in the handle to hold the tuft in place in the handle.
5 more elements
A method of forming a brush comprising the steps of:
- providing a tuft having a bristle end and a grip end, the tuft comprising:
- a plurality of bristles compacted together to form a first cross-section;
- a knot formed at the end of the bristles, the knot comprising a tapered section which increases in cross-section from the point closest to the bristle end of the tuft to the point which is towards the grip end of the tuft;
- placing the bristles of the tuft into a receptacle in an insert such that the knot abuts the opening of the receptacle, the cross-section of the knot at the point closest to the bristle end of the tuft comprising a cross-sectional area which is substantially the same as the cross-sectional area of the opening of the receptacle such that the knot forms a seal for the receptacle;
- placing the tuft and insert into a mold;
- molding a handle in the mold around the knot of the brush such that once the molded handle is set, the tapered knot serves as an anchor in the handle to hold the tuft in place in the handle;
- and
- removing the brush handle from the mold and removing the insert from the tuft.
5 more elements
Dependencies are inferred from the claim text.