US 2053145 A
Description (OCR text may contain errors)
Sept. 1, 1936. D, w HAMEL 2,053,145
FOUNTAIN TOOTH BRUSH 7 Filed Feb. 8, 1934 2 Sheets-Sheet l ,i'l grl.
Sept. 1, 1936.
D. W. HAMEL FOUNTAIN TOOTH BRUSH 2 Sheets-SheetZ Filed Feb. 8, 1934 N& v V
Patented Sept. 1, 1936 UNITED STATES FOUNTAIN TOOTH BRUSH David W. Hamel, Westfield. Masa, asaignor o! one-hall to David W. Murdock Application February 8, 1934, Serial No. 710,355
an improved fountain tooth brush wherein the,
handle contains a replaceable dentifrice cartridge.
Still a further object of this invention is to provide an improved fountain tooth brush which is provided with a cap for protecting the brush against contamination when not in use, enabling the same to be easily carried in the pocket or in a suitable case so the same may be available at any time for use in the home and can likewise be carried to the omce, school or factory for noontime use, and which cap further contains the mechanism for feeding the dentifrice from the cartridge in the handle to the bristles oi the brush.
Still a further object of this invention is to provide a fountain tooth brush wherein the dentifrice is held in the handle protected against waste or soiling and yet is instantly available for use at any time when needed. 7
With the foregoing and other objects in view, aswili hereinafter become apparent, this invention comprises the constructions, combinations and arrangements of parts, hereinafter set forth, claimed and illustrated in the accompanying drawings:
Fig. 1 is a side elevation of the invention.
Fig. 2 is a vertical sectional view of the same.
Fig. 3 is a sectional view of the fountain tooth brush in operating position.
Fig. 4 is a side elevation of the tooth paste cartridge.
Fig. 5 is an end view of the same looking from the left of Fig. 4.
Fig. 6 is an end view of the same loosing from the right of Fig. 4.
Fig. 'l is a plan view of the parafin composition et or otherwise, while in Fig. 3 it is shown in the position ready for use. When in the closed position as in Figs. 1 and 2, as will be observed, the complete device resembles a fountain pen and is carried in the pocket in the same manner as a fountain pen. 5
The fountain tooth brush l0 comprises a barrel H, which serves as a handle for the tooth brush I2, the tooth brush I2 being threaded as at 63 so that it may be detachably secured to the endof the barrel II. The brush I2 is provided 10 with four rows of bristles M, the bristles being paired in two rows, each spaced apart as at it.
A cap l6, having a. pocket clasp ll and ventilating holes IB, is adapted to be received over the end of the barrel or handle II when in open posi- 15 tion and to be received over the brush l2 when in closed position A plunger pin it, secured shown in Fig. 2, the threaded end 2% cooperating 20 with the threaded recess 29 in the brush 62. As will be seen in Fig. 20, the plunger pin it passes through the space i5 between the bristles it when the cap it is placed in closed position. The barrel of the handle H is adapted to receive a 25 cartridge 22, made up of wax paper 23 and containing the tooth paste or dentifrice it. This cartridge 22 is of such a size as to exactly fit within the barrel ll and its ends 25 and it are perforated so that they can be torn ofi when the 30 cartridge is placed in use, the end 25 being torn off after the cartridge is placed in position when the bristle holding member i2 is unthreaded from the barrel ll as ati3.
The cartridge 22 is provided with a piston 5 21, the piston 21 being provided with a central depression 28 adapted, to receive the end of the plunger pin I9. The end of the barrel H is closed by means of a cap 29 which has a hole 30 extending therethrough, allowing the plunger 40 pin to pass through the hole 30 and into contact with the depression 28 of the wooden piston 2?.
The bristle holding brush portion 92 is provided with a conduit 3i, extending therethrough, and terminating in a pair of outlets 32, the out- 4: lets being placed in the space I5 so asto feed the dentifrice between the rows of bristles M.
To load the cartridge 22 into the handle 8 l, the cap 29 is unthreaded from the end of the barrel handle I I, the end 25 of the cartridge is torn off, 50 the cartridge 22, which is of wax paper with the dentifrice 24 therein, is inserted into the barrel. The perforated end 26 is then torn off and the cap 29 threaded into position. To operate the same, the plunger pin I9 of the cap it is then 55 passed through the hole 30 in the screw cap 29 and into the depression 28 of the wooden piston 21. The cap is merely then pressed gently over the barrel 1 I, causing the plunger pin 19 to press the piston pin 21 against the dentifrice 24, thereby causing a supply of dentifrice 34 to pass through the conduit 3| and outlets 32between the bristles H of the brush I2. tridge is empty, the plunger 21 will strike against the end of the brush 3!, the end of the brush portion l2 being provided with bosses 33 which project into the depressions 34 of the piston 21 i when the same comes in contact therewith.
As is apparent, the cartridge 22 containing the dentifrice 2a is convenient and easy for loading the barrel but it may sometimes happen that no cartridge is available and it is necessary to load the same from any conventional tooth paste tube, such as is shown at 35 in Fig. 11. To load it from a tooth paste tube 35, the screw-cap 29 is removed from the barrel H and the wooden piston 21 likewise removed therefrom. A special cap 36, threaded to fit the inside of the barrel H, is screwed into position and this cap 36 is provided with an internal opening 31 to receive the nozzle 38 of the conventional tooth paste tube 35, allowing the dentifrice in the tooth paste tube 35 to be fed into the barrel ll. After the barrel ll 1s filled in this manner, the piston 21 and screwcap 29 are replaced into position, making the fountain tooth brush ready for use again. The brush handle portion i2 is threadedly connected as at 39 so as to enable the same to be detachably When the 'carsecured to the barrel II and removed therefrom when necessary for thorough cleaning of the brush 1! and the conduit 3|.
The novel features and the operation of this device will be apparent from the foregoing description. While the device has been shown and the structure described in detail, it is obvious that this is not to .be considered limited to the exact form disclosed and that any changes may be made therein within the scope of what is claimed without departing from the spirit of this invention.
Having thus set forth and disclosed the nature of this invention, what is claimed is:
A fountain tooth brush comprising a hollow barrel defining a dentifrice reservoir, a bristle holding member secured to one end of said reservoir and having a conduit extending therethrough connecting said barrel with said bristles, a movable disc having a central depression at one end thereof within said hollow reservoir, said disc operable to force the dentifrice from said barrel to said conduit, an apertured cap secured to the opposite end of said reservoir, means for forcing said disc through said dentifrice reservoir, said means comprising a hollow member having a plunger pin fixed therewithin, said pin insertable through the aperture in said cap in contacting relation with said disc within said central depression for operating said disc, said hollow member adapted to be grasped to serve as a handle for said bristle holding member.
DAVID w. HAMEL.