US2574042A

US2574042A - Reinforcing insert for antidrip attachment for paint brushes

Info

Publication number: US2574042A
Application number: US69566A
Authority: US
Inventors: John F Kunau
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-01-06
Filing date: 1949-01-06
Publication date: 1951-11-06
Anticipated expiration: 1968-11-06

Description

1951 .1. F. KUNAU REINFORGING INSERT FOR ANTIDRIP ATTACHMENT FOR PAINT BRUSHES Filed Jan.

I? ll 7 l8 Fig.3.

John F. Kunau INVENTOR.

BY Qwaofiu Patented Nov. 6, 1951 UNITED 1 STATES rem OFFIQE REINFORCING INSERT FOR ANTIDRIP ATTACHMENT FOR PAINT BRUSHES 1 Claim.

The present invention relates to the category of inventions classified as attachments for paint brush heads and referred to as drip collecting cups, collars, guards and the like and the object of the invention is to structurally, functionally and otherwise improve upon those attachments with which I am familiar.

With further reference to the prior art it may be stated that the generally accepted type of drip collector embodies a trough or channel which in practice serves to trap paint such as runs down the various surfaces of the head while painting a ceiling or similar overhead surface. The majority of drip collectors are rigid and are made to fit a given size of a brush. Some drip collectors however have been made of rubber to snugly embrace the brush head and to thereby serve to accommodate brush heads of varying sizes. The difliculty, however, is that if a rubber type trough equipped collar is overstretched, the walls forming the trough will collapse and become ineffective.

It follows from the above that the present invention has to do with an improved reinforcing insert for an elastic or resilient collar having a trough of the stated type, said collar being improved by having incorporated in the transverse end portions reinforcing inserts, the latter making the collar more practical and yet allowing same to be fitted on brush heads of differing sizes.

More explicitly, the invention has to do with a metal or equivalent insert used as a reinforcing unit, the same characterized by a U-shaped sheet metal clip and suitable reinforcing rod members carried by one limb of the clip.

Other objects and advantages will become more readily apparent from the following description and the accompanying illustrative drawings.

In the drawings:

Figure 1 is a perspective view of a conventionaltype paint brush equipped with an anti-drip attachment collar constructed in accordance with the principles of the present invention;

Figure 2 is a perspective View of the reinforcing insert;

Figure 3 is a horizontal section on the line 3-3 of Figure 1, looking in the direction of the arrows; and,

Figure 4 is a fragmentary cross section on the line 44 of Figure 3.

Referring now to the drawings by distinguishing reference numerals the wooden or equivalent head of the brush is denoted by the letter A the same having a suitable handle B. The usual metal shield around the head is denoted at C and the bristles at D.

The rubber or equivalent anti-drip attachment is denoted, in a unitary sense, by the numeral 6. It is in the form of a channel-shaped collar which is shaped and made to fit around a head or shield of the brush. When in place the collar or attachment defines a pair of longitudinal or side channels I and 8 and a pair of transverse or end channels 9 and it which in practice serve as drip collecting channels or troughs. The inner wall of the collar is suitably tapered and relatively thin and denoted by the numeral I I and the outer wall is comparatively thick and denoted by the numeral I 2.

" I provide reinforcing inserts for opposite transverse end portions of the collar and each insert is of the construction shown in Figure 2. Here the insert comprises a metal or equivalent U- shaped clip l3 having a bight portion I4 and inper and outer limbs l6 and I5 respectively. The inner limb i6 is somewhat longer than the outer limb l5 and is centrally imbedded in the inner thinner wall H as shown to advantage in Figure 4. The outer limb is appropriately imbedded in the outer thicker wall l2 as shown in Figure 4. The outer limb is also provided with substantially U-shaped reinforcing rods. The main or body portions ll of the rods being imbedded in the wall I2, the end portions extending around the corners of the adjacent channels and'being imbedded in the corresponding end portions of the side walls I2, said laterally bent ends being denoted by the numerals [8.

These reinforcing inserts substantially span and brace the transverse ends only of the head encircling collar. There is suflicient elasticity and resiliency in the collar to make it adjustable. By keeping the transverse ends of the channel at all times open, the side channels are also maintained spread and open. In other devices the channel or trough is often collapsed and therefore closed. In the present improved arrangement the channels are completely open for effective drip trapping results.

I desire to stress the fact that the cross or transverse channels 9 and I0 are braced from end to end and the adjacent end portions of the respective and intervening longer channels I and 8 are also braced due to the provision of the laterally bent ends [8 of the reinforcing rods. It follows that all of the features contribute their proportionate shares in providing an adequately and satisfactorily usable paint brush anti-drip attachment.

It is thought that persons skilled in the art to which the invention relates will be able to obtain a clear understanding of the invention after considering the description in connection with the drawings. Therefore, a more lengthy description is regarded as unnecessary.

Minor changes in the shape, size and arrangement of details coming within the field of invention claimed may be resorted to in actual practice, if desired.

4 Having desc 'ibed the invention, what is REFERENCES CITED claimed as new 1s:

As a new article of manufacture and as a corn- The references are of record in the ponent part of a paint brush anti-drip attachfile of thls Patent: r ment of the class described, a U-shaped clip em- UNITED STATES PATENTS bodying iong and short limbs, and a, pain of U M Number Name Date shaped rigid remforclng rods, the respective 1n- 1,139,627 Baltzley May 18, 1915 termediate portions of sand rods being r gidly. o

. .7 1,864,059 Frenkel June 21, 1932 connected with the short limb of said clip and r r i 1,887,525 spiegelhalter Nov. 15, 1932 the free lateral ends of sand rods being directed 10 f h b d d b 1,906,157 Jerousek Apr. 25, 1933 mm sai s or 1m an towar sal ong 1m 2,256,650 Reid et a1 Sept. 23, 1941 JOHN F. KUNAU.