|Publication number||US3076217 A|
|Publication date||Feb 5, 1963|
|Filing date||May 1, 1959|
|Priority date||May 1, 1959|
|Publication number||US 3076217 A, US 3076217A, US-A-3076217, US3076217 A, US3076217A|
|Inventors||Scholl Leidy G|
|Original Assignee||Scholl Leidy G|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (8), Referenced by (10), Classifications (8)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Feb. 5; 1963 L. G. SCHOLL REMOVABLE BRUSH HEAD COVER WITH THREADED HANDLE NUT Filed May 1, 1959 INVENTOR.
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3,076,217 REMOVABLE BRUSH HEAD COVER WITH THREADED HANDLE NUT Leidy G. Scholl, Perfected Broom Co., North Line St., Lansdale, Pa. Filed May 1, 1959, Ser. No. 810,318 2 Claims. (Cl. 15-145) This invention relates to an improved nut for removable brush handles and more particularly to a nut which will form at least partial threads on a smooth wooden brush handle being screwed thereinto.
Heretofore, it has always presented a problem to people who use push brushes and the like to removably secure a handle to the head of a push brush in such a manner whereby the head of the brush will not be split or otherwise be damaged and rendered useless by either the excessive tightening of the threaded handle in the head of the brush, or by applying lateral pressure to the handle of the brush which in many instances causes the head of the brush to split.
A main object of this invention is to provide a removable brush head cover which may be readily applied to and removed from the head of a push-broom or the like, the cover having secured thereto an improved nut which will be capable of forming at least partial threads upon that portion of a wooden handle being screwed thereinto.
A still further object, in accordance with the preceding object, is to provide a brush head cover which may be removably secured to the head of a push brush and have a handle portion removably secured thereto, the cover itself then absorbing the stresses which would normally be sufiicient to cause irreparable damage to the head of a push brush and render it useless. I
A final object, in accordance with the preceding objects is to provide an attachment for push brushes and the like that will lend itself to conventional forms of manufacture and is sufficiently inexpensive so as to reduce the usual expense of replacing a broken brush head to a minimum.
These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:
FIGURE 1 is a perspective view of the improved nut comprising the present invention shown fixedly secured to a removable head cover which is mounted upon the head of a push brush with the brush end of the handle therefor being positioned for engagement with the nut.
FIGURE 2 is a longitudinal vertical sectional view taken substantially upon the plane indicated by the section line 22 of FIGURE 1 with parts of the brush and cover being broken away, and with the bristles of the brush removed; and
FIGURE 3 is a vertical transverse sectional view taken substantially upon the plane indicated by the section line 3-3 of FIGURE 2 with the handle and the bristles of the brush being shown in phantom lines.
With attention now drawn to FIGURE 1 of the drawings, the numeral generally designates the improved nut comprising the present invention which is fixedly secured to a removable cover generally referred to by the reference numeral 12. The cover 12 comprises a generally elongated member which is substantially U-shaped in cross-section having depending side walls 14 and depending curved end walls 16. As can best be seen in FIG- URES 2 and 3, depending side walls 14 and end walls 16 are snugly received over the sides and the ends of brush head 18. The brush head 18 is to be provided with a plurality of apertures 20 throughout its longitudinal United States Patent 0 "ice length. Formed integrally with top wall 22 of brush cover 12 and depending therefrom are fasteners which are generally designated by the reference numeral 24. Each fastener 24 is generally of inverted U-sh-aped configuration having a bight portion 26 and depending arms 28 which terminate in laterally enlarged end portions 30 that are defined by flange 32 which extend laterally from the remote surfaces of arms 28.
Formed in the top wall 22 of the cover 12 is a cylindrical pocket 34 in which the nut 10' is secured. Nut 10 has a lower portion 36 and an enlarged upper portion 37 defined by shoulder 39. The lower portion 36 is fixedly secured in pocket 34 with shoulder 39' abutting against the top wall 22 of the cover 12. Nut 10 may be secured fwithin cylindrical pocket 34 in any convenient manner such as by cementing.
Formed in nut 10 is an upwardly and outwardly flared threaded bore 42 which has a bottom wall 44. Formed on bottom wall 44 is a convex projection 46 which is received within the usual concave recess 47 of the tapered smooth end portion 48 of the brush handle 50 as it is threadingly engaged within threaded bore 42.
It is to be understood that the preferred material for constructing the cover 12 is plastic or a similar material which is somewhat rigid and yet has resilient properties. The nut 10 may also be constructed of a similar material, however, it is not desired to have the nut 10 constructed of a material that is resilient to the point that the nut will be incapable of rigidly securing a handle to the cover 12.
In operation, the cover 12 is placed over the head 18 of the brush with the enlarged end portions 30 of the fasteners 24 projecting and secured through the lower smaller end of tapered apertures 20 by means of flanges 32. It will be noted that when the cover 12 is in position upon. the brush head 18, that the lower surface of the cylindrical pocket 34 is resting upon the upper surface of the brush head 18. The smooth tapered portion 48 of the handle 50 is then threadedly engaged within threaded bore 42 whereby the threads of the threaded bore will form at least partial threads on the handle 50 thereby rigidly securing the latter to the cover 12 which now carries the brush head 18. In addition, the threaded engagement of the handle 50 with the nut 10 will slightly flex the walls of the nut outwardly into tighter frictional engagement with the confronting faces of the pocket 34. Thus it may be seen that there is no direct contact between the handle 50 and the brush head 18 and that any lateral stresses applied to the handle 50 will be absorbed by the cover 12 through the nut 10. If a person while using the assembled brush should strike an object with sufficient force to do damage to the cover 12, it is then only necessary to remove the handle 50 from the cover 12 and then remove the brush head 18 from the cover 12 and replace the latter which, in comparison to the brush head 18, is relatively inexpensive.
It is to be understood that the nut 10 is to be constructed of a material which is sufiicien-tly rigid so as to enable a smooth tapered end portion of a handle or a straight end portion of a handle to be screwed thereinto to form at least partial threads upon that end portion of the handle. Further, the use of the handle having a tapered end portion is desirable, although a handle having a straight end portion smaller in diameter than the greatest diameter of tapered threaded bore 42 will be equally effective.
Thus, it may be seen that herein described is a brush head cover and nut assembly which will absorb blows that would normally cause damage to a relatively expensive brush head.
The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.
What is claimed as new is as follows:
1. A hollow removable brush head cover constructed of a relatively rigid but resilient material adapted to be removably secured about the upper portion of a brush head and having a cylindrical pocket formed in the upper surface thereof including a bottom whose undersurface is adapted to abut against the upper surface of said brush head, an improved nut to secure a handle to said brush head, said nut having a lower portion and an enlarged upper portion defining an annular shoulder, said lower portion being snugly received and fixedly secured in said pocket with the lower surface of said shoulder abutting against the upper surface of said cover and the bottom of said lower portion abutting against the bottom of said pocket, an upwardly and outwardly flaring threaded blind bore in said nut having a bottom Wall defining a closure for the lower end of said bore, said nut being constructed of a relatively rigid but slightly resilient material whereby the threads of said tapered bore will cut at least partial threads in the tapered portion of a brush handle secured thereinto and the securement of a handle in said nut will slightly flex the walls of said nut outwardly into tighter frictional engagement with the confronting surfaces of said pocket.
2. The combination of claim 1 including a convex projection on the upper surface of said bottom wall for engagement by the end of a handle seated in said bore.
References Cited in the file of this patent UNITED STATES PATENTS 1,547,464 Styan July 28, 1925 2,715,237 Trindl Aug. 16, 1955 2,835,914 Littleton May 27, 1958 FOREIGN PATENTS 307,279 Switzerland Aug. 1, 1955 318,162 Switzerland Feb. 15, 1957 574,738 France April 4, 1924 1,111,888 France Nov. 2, 1955 1,130,504 France Oct. 1, 1956
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US1547464 *||Mar 6, 1924||Jul 28, 1925||Louis Ely||Grip|
|US2715237 *||Jul 8, 1950||Aug 16, 1955||Trindl Joseph H||Sponge type mop having a detachable head|
|US2835914 *||Mar 21, 1956||May 27, 1958||Louis A Littleton||Mop having detachable head|
|CH307279A *||Title not available|
|CH318162A *||Title not available|
|FR574738A *||Title not available|
|FR1111888A *||Title not available|
|FR1130504A *||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4003668 *||Jun 18, 1975||Jan 18, 1977||Clinton Plastics, Inc.||Threaded broom pole adapter|
|US4194852 *||May 19, 1978||Mar 25, 1980||Shur-Line Manufacturing Co., Inc.||Applicator with multi-positional handle|
|US4486913 *||Sep 27, 1982||Dec 11, 1984||Perfex Corporation||Floor brush construction|
|US4684283 *||Jun 23, 1986||Aug 4, 1987||The Drackett Company||Handle socket adapter|
|US5274872 *||Mar 6, 1992||Jan 4, 1994||Rich David B||Handle and handled implement|
|US5288161 *||Feb 14, 1992||Feb 22, 1994||The Wooster Brush Company||Quick release lock mechanisms|
|US5522164 *||May 23, 1994||Jun 4, 1996||La Francaise Metallurgie Societe Anonyme||Device for displaying a rotary brush for sale|
|US5547200 *||Apr 6, 1995||Aug 20, 1996||Rangel; Louis||Arrow nock and shaft insert|
|US6199241||Jan 12, 1999||Mar 13, 2001||Carl K. Anumah||Bathtub brush|
|EP0627721A1 *||May 16, 1994||Dec 7, 1994||La Francaise Metallurgie||Device for the sales presentation of a rotary brush|
|U.S. Classification||15/145, 15/171, 403/343, 15/176.2|
|International Classification||B25G3/30, B25G3/00|