US2883991A - Mouthpiece - Google Patents

Description

April 28,",1959 D. K. 10pmA MOUTHPIECE Filed July 18, 1955 INVEzyToR A rra/mfr United States Patent MOUTHPIECE Daniel K. Copell, New York, N.Y.

Application July 18, 1955, Serial No. 522,468

1 Claim. (Cl. 131-207) 'I'his invention relates to a structurally and functionally improved mouthpiece to be used by a smoker. While it might be advantageously employed in numerous different associations, it is primarily intended to serve as a mouthpiece for a pipe.

It is an object of the invention to provide a novel and improved cartridge holder wherein the cartridge is always exposed to the currents of the atmosphere during smoking to provide for a relatively cool smoke. Another object resides in the provision of a cartridge holder in the form of a hollow casing provided |with longitudinally spaced tubular anterior and posterior portions interconnected by circumferentially spaced relatively narrow ribs defining gaps leading to and in communication with the internal chamber of the holder between the anterior and posterior tubular portions. Another object resides in the provision of a nipple detachably associated with the holder and having a rearwardly expanding tapered bore for 'wedgeably supporting the anterior end of the cartridge. A further object is realized in the provision of a forwardly expanding tapered bore in the posterior tubular portion of the holder to frictionally sustain the posterior end of the cartridge.

With these and other objects in mind, reference is had to the attached sheet of drawings illustrating one practical embodiment .of the invention and in which:

Fig. l is a longitudinal sectional view of the pipe according to my invention, showing the conventional bowl and the cartridge partly broken away;

Fig. 2 is an enlarged transverse sectional View on the line 2 2 of Fig. 1;

Fig. 3 is a perspective view of the mouthpiece; and

Fig. 4 is an exploded view of the parts of the assembly as shown in Fig. 1.

In the drawings, the pipe, generally denoted P, comprises the tobacco receiving bowl B land the laterally extending shank S having channel communicating with bore 11 of the bowl. It Iwill be observed that shank S also includes bore 12 in communication with channel 10. Bore 12 retains the anterior tubular portion 13 of nipple N having annular flange 14 adapted to abut the rear end of shank S. Nipple N also includes the posterior externally threaded hollow portion 15 adapted to engage the internally threaded annular front end or anterior portion 16 of the cartridge mouthpiece or holder CH which includes a posterior annular portion 17 provided with the forwardly expanding tapered opening 18. Portion 17 is continued in the form of a bit 19 provided with a bore 20. The 'width of this bit is-as 'shownsub stantially equal to the diameter of the holder, so that the latter may readily be manipulated and continuity of appearance will be maintained.

The holder CH is a one piece hollow member or casing and although shown as of a suitable plastic may be of any other proper material. However, its anterior cylindrical and internally threaded portion 16 and its posterior hollow portion 17 are appreciably spaced apart although preferably integrally interconnected by circumferentially lice spaced ribs R defining the spaced gaps 21, leading to and communicating with chamber or bore 40 intermediate the anterior and posterior hollow portions 16 and 17 of the holder.

The tubular filter cartridge FC is cylindrical and may consist of several plies of moisture and nicotine absorbing and relatively thick paper 22 and 23 defining an impervious outer layer and an internal bore 24 interrupted Aby a web of diametrically arranged stitches carried by the inner ply 23. These stitches may bev'of cotton or the like adapted to filter the ow through the mouthpiece. As is .well understood, plies 22 and 23 also absorb tars andv otherproducts of condensation in the smoke.

With the cartridge holder CH disconnected from nipple N, the filter cartridge FC may be inserted throughthe annular or ring shaped front end or portion 16 into holder CH until the rear or posterior end 26 of the cartridge wedges slightly against the tapered surface defining bore 18. By this action the cartridge is not only frictionally held in holder CH but is concentrically disposed therein across the internal chamber 40. In such relation the cartridge is spa/ced from the inner arcuate faces 27 of ribs R and exposed to the atmosphere.

Holder CH is now moved towards nipple N whereby front or anterior end 28 of the cartridge is received by the nipple N. More specifically at this time, the holder is rotated and the internal threads 29 of the front portion 16 coact 'with the external threads 30 of the hollow posterior part 15 of nipple N. Eventually head or front portion 16 meets the annular stop flange 14 and at this time the front end 28 of cartridge FC has been slightly compressed and has wedged itself against the rearwardly expanding tapered bore or opening 31 of the anterior part 13 of nipple N. Stated in another way, the front and rear ends of the cartridge are frictionally retained by nipple N and by the holder CH but in spaced relation in respect to ribs R, thus fully supporting the cartridge to maintain its concentric position across the holder. Also, the filter will have its adjacent end substantially sealed in engagement with the surface 18.

During smoking, fumes reach bore 31, are conducted through bore 24 of the cartridge FC where the fumes are filtered after Iwhich the filtered fumes are conducted Ithrough bore 20 to the user. Thus, by the present invention the cartridge serves as the only passage for, conduct-ing the smoke between nipple and the rear end of the holder, or stated in another way for conducting the smoke longitudinally of chamber 40. Since the cartridge is always in view during and after smoking, it can be realized at once whether it needs replacement by a new filter after having reached its' maximum efficiency. Even during smoking, the cartridge is always yopen or exposed to the atmosphere. Consequently currents of air pass over the outside surface of the cartridge, thus tending to provide a cool smoke.

As will be apparent, the present mouthpiece serves as a framework to properly support the filter element. This framework may readilybe maintained in clean condition. When it is necessary to replace a filter and with the front end of the mouthpiece unobstructed, the user may readily insert the tips of his thumb and linger through the gaps existing between the ribs to contact the outer face of the filter element. Thereupon, the latter may be axially shifted to remove it from association 'with the mouthpiece. By reversing this operation, a new lter element may be placed in operative association with the mouthpiece.

Various changes may be made in details of construction and arrangement of parts 'without departing from the scope of the invention or sacrificing any of the advantages inherent therein.

I claim: l

A smokers implement comprising in combination a tubular holder, a mouthpiece having a bit integral with said holderand disposed at one `endof the latter, said bit having an axial smoke conduit in communication with the bore of the holder, an annular end portion fixed vvith respect to 'said holder at the'end'opposite is'aid mouthpiece, a tubular nipple removably ymounted on said annularend portion, a ser-ie's'o'f thin, elongated and rigid 'ribs spaced from each other to provide an elongated open l'framework throughout 5a major portion of the entire length of the implement, the bores of the nipple and `the 'mouthpiece portion 'each-being tapered in a direction a'way from the "center 'of 'the implement to provide recesses, an elongated 'tubular lfilter element lwholly housed Within said holder and having'an outer Wall impervious to smoke to dene 'the sole passage for that smoke, the ends of said filter element Wed'gingl'y and sealingly engaging 'one with each of 'the sunfaces of said recesses, said ribs being spaced from Vthe 'outer Surface of said Vfilter element, the open vframework being of va 'size to 'expose lfor viewing a major 'portion 'of the circumference and length of the lltei'-, the fingertips being intr'oducble through the open UNITED STATES PATENTS 525,465 Mallinckrodt Sept. 4, 1894 2,098,983 Uber Nov. 16, 1937 2,100,051 Hallner f Nov. 23, 1937 2,158,301 Page May 16, 1939 2,185,598 Lackow Jan. 2, 1940 2,314,585 Lemle Mar. 23, 1943 2,580,974 Sutter Jan. 1, 1952 FOREIGN PATENTS 12,989 Great Britain 1885 13,123 Great Britain 1903 492,628 Great Britain Sept. 23, 1938 '514,612 Belgium Oct. 31, 1952 571,080 Germany 4Feb. 23, `1,933

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