US3340557A

US3340557A - Demountable paint brush

Info

Publication number: US3340557A
Application number: US551575A
Authority: US
Inventors: Rosenzweig Benjamin
Original assignee: Individual
Current assignee: Individual
Priority date: 1966-05-20
Filing date: 1966-05-20
Publication date: 1967-09-12
Anticipated expiration: 1984-09-12

Description

Sept. 12, 1967 B ROSENZWEK; 3,340,557

DEMOUNTABLE PAINT BRUSH Filed May 20, 1965 VFmt 3.

United States Patent O 3,340,557 DEMOUNTABLE PAINT BRUSH Benjamin Rosenzweig, New York, N.Y. (173-27 Fairchild Ave., Flushing, N.Y. 11358) Filed May 20, 1966, Ser. No. 551,575 2 Claims. (Cl. 15-176) This invention is for a new and improved paint brush, in Which part of the ferrule can be dismounted from the brush, freeing the bristle assembly, thereby resulting in important advantages over the conventional undetachable brush commonly in use.

The freed bristle assembly, and particularly the area nearest the adhesive block which is the focal point of sedimentation and deterioration in the undetachable brush, can be thoroughly cleaned. When unencumbered by the lengthy handle and the ferrule, the freed bristle assembly can be safely immersed, on its side, in paint solvent in a small air-tight container, minimizing fire hazard from combustible paint and solvent. Such easy storage of the freed bristle assembly on its side renders obsolete the practice of soaking or storing the undetachable brush standing upright on its bristles, misshaping them and destroying the usefulness of the brush. This invention further provides a quick, simple and inexpensive method for replacing one bristle assembly for another in the same handle and ferrule, thus resulting in lower cost, more convenient storage of brush units and the speeding-up of painting jobs and cleaning-up chores.

Other important advantages and objects of this invention will become apparent from the disclosures in the following specification and accompanying drawings, in which:

FIG. 1 is a perspective view of the paint brush, showing it in its assembled form.

FIG. 2 is a sectional view through the handle and ferrule, showing the connection to the handle, and the method of fastening the metal ferrules together at their sides, along line 2-2 of FIG. 1.

FIG. 3 is a sectional view through the ferrule and bristle block, along line 3-3 of FIG. 1.

FIG. 4 is a cross-sectional view through the ferrule, along line 4 4 of FIG. 1.

FIG. 5 is a perspective view of the overlapping removable ferrule, showing its inside surface and curved edges.

FIG. 6 is a top view of the end of the ferrules, showing the relative positions of the edges, before fastening together. l

FIG. 7 is a top View of the ends of the ferrules, in a fastened position, showing an alternative method of such fastening means.

Handle 10 is a paint brusht handle of the conventional narrow, elongated design, terminating in a flared shape.

Bristle assembly 11 is a single unit, comprising bristles 12 attached to a solid block of adhesive material 13, which block has a raised

bead

14, 15 running around its length.

'Ihe

ferrules

16, 17, Comprising two separate parts of sheet metal, approximately equal in size, are shaped to it ush against the lower end of handle 10, the entire bristle block 13 and the upper portion of the bristles 12. The ferrule grooves 18, 19 run around the length of the interior surface of the

ferrules

16, 17 and are positioned to fit over the bristle '

block bead

14, 15 when the

ferrules

16, 17 are fastened together.

The ferrule 17 is permanently secured along its upper length to the lower part of the handle 10 by

rivets

20, 21, 22. The other ferrule 16 is an independent part, not permanently attached to any part of the paint brush. Each of the two

ferrules

16, 17 is curved at its vertical edges 23,

24 fitting flush against the corresponding sides of the lower end of the handle 10 and the bristle block 13.

The

ferrules

16, 17 are fastened together as shown in FIGS. 2, 3 and the details of such fastening method are shown in FIG. 6, with an alternative method being shown in FIG. 7.

The edges 23 or the ferrule 17 are formed into exterior flanges, while the corresponding edges 24 of the ferrule 16 are formed into interior flanges.

As an alternative method of fastening the

ferrules

16, 17 together, the edges 23 of the ferrule 17 have grooves 25 on their exterior faces, while the corresponding edges 24 of the ferrule 16 have beads 26 on their exterior faces.

To assemble the paint brush of this invention, the bristle assembly 11 is positioned within the horizontallyplaced ferrule 17, so that the lower

bristle block bead

14 or 15 is resting on the ferrule groove 19. The ferrule 16 is positioned over the upper surface of the bristle assembly 11, so that its groove 18 rests on the upper bristle block bead 14 or 15. The assembly is completed by hand pressure on the exterior surfaces of the

curved edges

23, 24 of the

ferrules

16, 17 until the flanges 23 overlap and engage the iianges 24, -or as in the alternative method illustrated, the beads 26 overlap and engage the grooves 25.

Thepaint brush is dismounted by inserting a thin blade at the

ferrule edges

32, 24 or 25, 26 and prying them apart, freeing the ferrule 16 and the 'bristle assembly 11.

I do not propose herein to limit this invention to the specific embodiments described above, except as necessitated by the principles and scope of the appended claims.

I claim as my invention the following:

1. A demountable paint brush, having a handle terminating in a flared shape at its lower end, a single brush unit comprising bristles attached to a block of adhesive material, and two ferrules enclosing the brush unit, each ferrule being adapted with reciprocal integral fastening means at its vertical edges, with one ferrule being secured along its upper edge to the flared lower end of the handle by rivets, while the other ferrule is an independent part, which is detachably secured to the riveted ferrule by said fastening means, thus releasably engaging the brush unit at will, with the brush block of adhesive material having a raised bead running around its entire length, while the interior surfaces of the ferrules have a groove running around their entire length, with said bead and groove positioned to engage each other When the ferrules are fastened together.

2. A paint bristle unit, as described in claim 1, wherein said block of adhesive material has a raised integral bead running around its entire length, so positioned as to detacha'bly engage a groove on the interior surface of the ferrules.

References Cited UNITED STATES PATENTS 134,745 1/1873 Gorman 15-177 2,326,879 8/ 1943 Neuhausen 15-202 2,490,159 12/ 1949 Ricchiuti 15-202 2,642,610 6/1953 Erik 15-177 X 2,668,972 2/1954 Pignato 15-176 X 2,785,427 3/ 1957 Bury 15-202 2,912,709 11/1959 Carlson et al 15-202 X FOREIGN PATENTS 781,718 8/ 1957 Great Britain.

CHARLES A. WILLMUTH, Primary Examiner.

PETER FELDMAN, Assistant Examiner.

Claims

1. A DEMOUNTABLE PAINT BRUSH, HAVING A HANDLE TERMINATING IN A FLARED SHAPE AT ITS LOWER, END, A SINGLE BRUSH UNIT COMPRISING BRISTLES ATTACHED TO A BLOCK OF ADHESIVE MATERIAL, AND TWO BRISTLES ATTACHED TO A BLOCK OF ADHESIVE FERRULE BEING ADAPTED WITH RECIPROCAL INTEGRAL FASTENING MEANS AT ITS VERTICAL EDGES, WITH ONE FERRULE BEING SECURED ALONG ITS UPPER EDGE TO THE FLARED LOWER END OF THE HANDLE BY RIVETS, WHILE THE OTHER FERRULE IS AN INDEPENDENT PART, WHICH IS DETACHABLY SECURED TO THE RIVETED FERRULE BY SAID FASTENING MEANS, THUS RELEASABLY ENGAGING THE BRUSH UNIT AT WILL, WITH THE BRUSH BLOCK OF ADHESIVE MATERIAL HAVING A RAISED BEAD RUNNING AROUND ITS ENTIRE LENGTH, WHILE THE INTERIOR SURFACES OF THE FERRULES HAVE A GROOVE RUNNING AROUND THEIR ENTIRE LENGTH, WITH SAID BEAD AND GROOVE POSITIONED TO ENGAGE EACH OTHER WHEN THE FERRULES ARE FASTENED TOGETHER.