US1822725A - Cleaning block - Google Patents

Description

Sept. 8, 1931. l-ll, s. COOPER T AL CLEANING BLOCK Filed Sept 26 1930 Per |NvENToRs ATroRNEv 3 .0 u. MW .M f ../f/ A Patented Sept. 8, 1931 i UNITED STATES PATENT OFI-lcs HALS. COOPER AND MORRIS L. COOPER, F KNOXVILLE, TENNESSEE CLEANING BLOCK Application led September 26, 1930. Serial No. 484,635.

This inveniton relates to new and useful lmprovements 1n cleanmg blocks or devlces.

especially adapted Afor removing dirta and` foreign matter from surfaces and has for 5 the primary object the provision of cleaning elements of di'erent textures or abrasives, 'whereby the device may be employed 4for scouring surfaces requiring different abrasivesxin order to remove the foreign matter without injury to the finish thereof.

Another object of this invention is the provision of a scraping element carried by the cleaning element, whereby course or hard foreign matter may be loosened from a surface prior tol'scouring the surface with the cleaning element.

A further object ofvthis invention is the provision of a scouring block ofthe above l stated character which will be simple, durable and efficient, and which may be manu factured and sold at a comparatively low cost.

With these and other objects in view as will become more apparent as the description proceeds, the invention consists in certain novel features of construction, combination and arrangement of parts as will be hereinafter more fully described and claimed.

For a complete understanding of our invention, reference is to be had to the following description and accompanying drawings, in which:

Figure l is a perspective view illustrating a cleaning block constructed in accordance with our invention. t

Figure 2 is a planview with one of the cleaning elements removed illustrating the application of the scraping element to the other cleaning elements.

Figure 3 is a sectional view illustrating the scra ing element embedded bejtween. the cleaning elements.

Referring in detail to the drawings, the

Vnumeral 1 indicates a cleaning block in entirety and includescleaning elements 2 and 3 constructed from rubber impregnated with abrasive material of any desired character and the element 3 is preferably of a substantially hard rubber, while the element 2 is made from spongyrubber as shown inpFigure ference between the cleaning elements 2 and 3. The elements 2 and 3 are vulcanized together in any well known manner and prior to the vulcanizing process, a scraping plate or blade 4 is positioned between the elements 2 and 3 and projects beyond one of the ends thereof and isy provided wtih spaced openings 5 to permit the rubber of the elements 2 and 3 to pass therethrough when vulcanizing the elements 2 and 3 together for the purpose of firmly securing the blade or plate 4 to the cleaning elements 2 and 3. 'lhe blade or plate has the free edge thereof beveled to form a scraping edge 6 whereby a person may easily remove hardened foreign matter from a surface prior to scouring the surface with either of the cleaningY elements 2 or 3.

n From the'foregoing description taken in connection withthe accompanying drawings, it willvbe noted that we have provided a very efficient cleaning device which can be manufactured and sold at a comparatively low cost and will permit a person to scour surfaces of different textures without injury to the finish of the surfaces and also permit a perof parts may be made without departingv from the spirit and scope of the invention as claimed.

Having thus described our invention what we claim is:

A cleaning device comprising a pair of cleaning elements one positioned upon the other and both tapering toward one of their ends and curved at their opposite ends to permit said elements to be gripped firmly by a person With suiicient portions thereof eX- posedl for rubbing over a, surface to be cleaned, and a plate secured between the cleaning elements and projecting slightly beyond the first named ends of the cleaning elements for permitting the surface to be scraped thereby, and said plate having spaced openings to permit portions of the cleaning elements to extend therethrough when the latter are secured together.

n testimony whereof We aix our signatures.

HAL S. COOPER. MORRIS L. COOPER.

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