|Publication number||US1567507 A|
|Publication date||Dec 29, 1925|
|Filing date||Jan 12, 1925|
|Priority date||Jan 12, 1925|
|Publication number||US 1567507 A, US 1567507A, US-A-1567507, US1567507 A, US1567507A|
|Inventors||Anthony Howard Andrew|
|Original Assignee||Anthony Howard Andrew|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (14), Classifications (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
A. A. HOWARD TOOTHBRUSH Dec. 29, 1925. 1,567,507
Filed Jan. 12, 1925 INVENTOR &5???
ATTORNEYS Patented Dec. 29, 1925.
UNITED STATES ANDREW ANTHONY HOWARD, OF CHICAGO, ILLINOIS.
Application filed January 12, 1925. Serial No. 1,986.
of Illinois, have invented a new and useful Improvement in Toothbrushes, of which the following is a full, clear, and exact description.
My invention relates to improvements in tooth brushes, and it consists in the combinations, constructions, and arrangements herein described an claimed.
An object of my Invention is to provide a tooth brush of the character described, in which the bristles are mounted upon a member which may be removed at will, for the purpose'of replacement or sterilizing, from a permanent handle member.
A further object of my invention is to provide a tooth brush of the characterdescribed, in which novel means is em loyed for holding the bristle bearing mem er in place upon the handle.
A further object of my invention is to provide a tooth brush of the character described, that is simple, that is durable, and which is thoroughly practical commercially. Other objects and advantages will appear in the following specification, and the novel features of the invention will beparticularly pointed out in the appended claim.
My invention is illustrated in the accompanying drawings forming part of this application, in which Figure 1 is a side elevation of an embodi-' ment of my invention.
Figure 2 is a plan view of the device shown in Figure 1, and
Figure 3 is a sectional view along the line 33 of Figure 1.
In carrying out my invention, I make use of a handle member 1 having a hand grip 2 and a head portion 3. The neck 4 of the handle member is slender and curved somewhat, so as to bring the hand grip 2 in a plane parallel with and at a distance from the plane of the head portion 3.
The head portion 3 is recessed, as shown at 5, the under sidethereof, and the side walls 6 of. the recess inclined apart from one another in such a manner as to cause the width of .the recess to Joe greater at the innermost end than at the mouth thereof. The head member 3 is therefore, similar as to the recess to one member of a dovetail joint.
The recess 5 extends up into the neck portion 4 of the handle member as shown at 7 thus forming a stop member, the functions of which will be hereinafter explained.
A bristle bearing member 8 fashioned to slide into the recess 5 from that end of the recess adjacent the neck 4, is rovided and is constructed of rubber bakellte. Bristles 9 are set in this member and are similar to the ordinary type of bristles employed in tooth brushes.
The bristle bearing member 8 has a cross sectional contour as shown in Figure 3, similar to a'dovetail member and therefore is held against unintentional dislod ment from the recess 5 except for longitu inal movement in one direction.
Means for locking the member 8 against longitudinal movement relative to the recess is provided in a thin flexible portion 10 extending rearwardly of the bristle bearing member 8. This portion 10 is adapted to yieldingly lie in engagement with a stop 7, heretofore described.
From the foregoing description of the various parts of the device, the operation thereof may be readily understood. In order to remove the bristle bearing member 8, the person using the device grips the flexible portion 10 and bends that portion away from the neck 4 as shown in dotted lines in Figure 1, which permits the entire member 8 to move longitudinally toward the hand grip 2 of th; handle 1 (see dotted lines in Figure 1 The bristle member 8 may then be steril .ized, or if worn out discarded and a new one replaced in the recess 5 of the head portion 3.
The member 8, with its bristles 9, will be held securely against movement in any direction during use of the device, which may be quickly and easily removed as described. 7
One of the most important advantages of my improved tooth brush construction is that I have provided not only economy in construction, but economy to the user.
\Vhen the bristles become worn it is only neccssary to replace the worn member with a fresh member, which can be provided at cost much less than an entire tooth brush.
I claim: i A tooth brush of the'character described comprising a handle member and a head portion, said handle member being formed with a neck portion intermediate the head and the body of the handle, a replaceable bristle bearing member of resilient material having a rearwardly extending relatively thin flexible portion, said head member having a dovetailed recess therein terminating at its lowermost end in a neck portion, said neelzr'portion beyond the termination of the dovetailed recess being recessed throughout 10 its width providing a shoulder, whereby der to lock said bristle bearing member in 15 said dovetailed recess, and whereby the bristle bearing member may be removed by bending said flexible portion out of engagement with the shoulder.
ANDREW ANTHONY HOWARD.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2920334 *||Jul 13, 1956||Jan 12, 1960||Keller Harry||Plastic brush construction|
|US2922174 *||Nov 12, 1957||Jan 26, 1960||A E Hickman||Cleaning tool for boxes of tool joints|
|US3103680 *||May 28, 1962||Sep 17, 1963||Abraham Krichmar||Sterilizable toothbrush|
|US4821358 *||Jan 4, 1988||Apr 18, 1989||C.R.W. Manufacturing||Golf club washer|
|US5224234 *||Apr 18, 1991||Jul 6, 1993||Arsenault Jeffrey L||Toothbrush with replaceable bristles|
|US5511276 *||May 22, 1995||Apr 30, 1996||Lee; Kuo-Ming||Toothbrush with replaceable bristle carrier|
|US6189175 *||May 5, 2000||Feb 20, 2001||Katie Priester||Private parts cleaning system|
|US6487748 *||Aug 30, 2000||Dec 3, 2002||Jonathan Dardar||Toothbrush with replaceable head|
|US8448287||Jul 14, 2011||May 28, 2013||Mcneil-Ppc, Inc.||Replaceable toothbrush head|
|US8631534||Jun 8, 2006||Jan 21, 2014||Dr. Fresh, Llc||Toothbrush|
|US8973203 *||Sep 1, 2011||Mar 10, 2015||Mikio Saito||Toothbrush|
|US20060067801 *||Sep 24, 2004||Mar 30, 2006||One World Technologies Limited||Portable router having an inerchangeable handle|
|US20070283517 *||Jun 8, 2006||Dec 13, 2007||Stephen John Blanchard||Toothbrush head|
|US20130219644 *||Sep 1, 2011||Aug 29, 2013||Mikio Saito||Toothbrush|
|International Classification||A46B7/00, A46B7/04|