US2725882A - Smoking pipe - Google Patents

Description

6, 1955 c. w. CHRISTOPHERSEN 2,725,882

\ SMOKING PIPE Filed April 22, 1953 5 /5 13 Fig.1.

INVEN TOR ATTORN EYS United States Patent SMOKING PIPE Christian W. Christophersen, Brooklyn, N. Y. Application April 22, 1953, Serial No. 350,392

2 Claims. (Cl. 131205) My invention relates to a smoking pipe.

It is an object of the invention to provide a smoking pipe which will be free-drawing and which may be very readily cleared by blowing in the mouth-piece so as to free the bowl opening of obstructions.

It is another object to provide a smoking pipe with reservoir means in the stem to collect tarry liquids and prevent them from being sucked in through the mouthpiece.

It is still another object to provide a smoking pipe which may be very readily cleaned with a flexible pipe cleaner and so arranged that the pipe cleaner will be directed into a right angular form and which, therefore, may be readily grasped in the bowl of the pipe and pulled completely through the stem.

Another object is to provide a smoking pipe with a. special passage or opening in the bottom of the bowl and so arranged as to reduce to a minimum the clogging or felting efiect of tobacco and the like over the opening into the stem.

A further object still is to provide a special fitting formed preferably of glass which fits in a preformed recess in the bottom of the bowl and which connects the stem with the bowl.

Other objects and various further features of novelty and invention will be hereinafter pointed out or will become apparent to those skilled in the art.

In the drawings which show, for illustrative purposes only, a preferred form of the invention:

Fig. 1 is a top view of a pipe looking straight down into the bowl;

Fig. 2 is a central vertical sectional view through the pipe illustrated in Fig. 1; and

Fig. 3 is an isometric view ofa fitting of glass connecting the bowl to the stem.

My invention will be described in connection with a more or less standard type pipe, generally referred to as a briar pipe, having a bowl 5 and integral hollow stem 6. A hard rubber or other month piece 7 is formed to be tightly and frictionally fitted into the hollow stem 6 as is common in this art. In the particular pipe illustrated, the bore 6 in the stem is of comparatively large diameter and the mouthpiece 7 has a turned-down or reduced section 8 tightly and frictionally fitting within the bore 6 and of sufficient length to properly connect the mouth piece to the stem. The turned-down portion 8 is preferably further turned or stepped down to a smaller diameter as indicated at 9 which portion 9 projects a substantial distance into the enlarged bore 6' but which does not itself engage the bore. The mouth piece has a through-smoke passage 10, as illustrated, which opens out through the small diameter extension 9 into the large bore 6 of the stem. It will be seen that any tarry liquid which may reach the bore 6' from the bowl or which condenses in the stem bore may fill the space between the mouth-piece extension 9 and the large bore 6' surrounding the section 9. Thus, when the smoker draws on the mouth-piece, it.is impossible to suck in tarry liquid from the stem passage 6' unless, in fact, the

' sion 9.

The passage from the bowl 5 to the enlarged bore 6 in the stem is through a special fitting piece. The bottom part of the bowl is provided with a bore 11 of substantial size and preferably terminates in a flat bottom so as to provide a cup-shaped recess which merges with the stem bore 6'. The special fitting connecting the bowl to the stem bore is a plug 12,-preferably of glass, which accurately fits within the bore 11 and may be cemented or otherwise held therein. The glass fitting or plug 12 is provided with a generally cornucopia-shaped or horn-ofplenty passage having a vertically upwardly directed small entry 13 into the bowl and having the larger diameter 14 of the cornucopia-shaped opening of substantially the same diameter as the bore 6' and fairing up with such bore.

It will be seen that the glass fitting or plug has the small entry passage 13, which enters the bowl at the center, directed upwardly. The opening 13 is through what might be termed a nipple 15 projecting upwardly from the body 12 so that any tobacco shreds or any like matter is not likely to lodge on the top of the nipple 15 and clog the passage 13. Furthermore, any liquid moving downwardly in the bowl will likely collect atop the plug 12 and below the top of the nipple and thus will not reach the stem bore 6.

As indicated, the passage through the fitting 12 is of generally cornucopia form and is preferably smooth and well-finished on theinside. As soon as any foreign matter, whether it be liquid or solid, passes through the small entry passage 13, it will readily pass through the progressively enlarging opening and thus enter the stem bore 6 without further obstructing the passage of smoke. If the passage should become temporarily clogged or partly clogged, blowing through the mouth-piece by the user will usually dislodge any shreds of tobacco or other material which might be lying across the top of the passage 13 and the nipple 15 after which the pipe may be smoked normally.

When it becomes necessary to clean the pipe, a pipe cleaner may be run through the mouth-piece while in place or the mouth-piece may be removed and the pipe cleaner run directly into the stern bore 6'. Since the large opening 14 in the glass fititng 12 is of substantially the same size as the bore 6' and fairs up therewith, it will be seen that the pipe cleaner will readily pass into the bore 14, and up through the passage 13 in the nipple so that it may be grasped in the bowl and pulled completely through.

Another advantage of the special fitting 12 is that as the hot smoke passes down through the passage 13-14 the fitting itself is heated up substantially and tends to retain the heat since glass is rather a poor conductor of heat and so that any moisture which works its way down through the bowl will have a tendency to evaporate upon contact with the hot top of plug 12 rather than to be sucked down and into the bore 6. Furthermore, the glass is easy to keep clean, is not likely to become scarred or rough and is resistant to all of the matter whether liquid or otherwise resulting from the smoking of the pipe.

It will be seen that my pipe, in the preferred form, has no metallic parts and, therefore, in no way adversely flavors or impairs the natural flavor of the tobacco. Some smokers contend that any metal through which the smoke passes gives a'distinet-tastmto the smoke and is obnoxious bowl having a tobacco receiving cavity, said stern havinga bore of large diameter whereby said bore forms an enlarged chamber inrthe -st em, the bottom of said bowl cavity having a vertical plug receivingrecess therein, and a plug in said recess and having its peripheral edgecontiguouswith the bottom-of" the-bowl cavity, said plug having a-nipple extending abovethebottom of the bowl cavity, said nipple having a small opening at the top thereof entering-intothe cavity,- said'plng having a large opening at: the side thereof entering'into-the bore of said stem and being substantially of the same size as said bore, said plug having a passageway between said openings, said passageway being arcuate and flaring immediately awayfrom said small opening to said large opening, whereby small particles cannot obstruct said passageway.

2. In a smoking pipe having a bowl and a stern, said stem having a boreoflarge diameter whereby said bore forms an enlarged chamber in the stem, said bowl having aplug receiving-recess in the bottom thereof, and a plug in said recess, said plug having a small opening at the top. thereof, entering into the. ottom of. he. ah Lands t large opening at the side thereof entering into the bore in the stern and being of about the same size and forming a continuation of said bore, said plug having a passageway between said openings, said passageway being arcuate and flaring immediately away from said small opening to said large opening, whereby small particles cannot obstruct said passageway.

References Cited in the file of this patent UNITED STATES PATENTS 291,561 Wolff Ian. 8, 1884 351,500 Degges Oct. 26, 1886 974,209 Tizley Nov. 1, 1910 997,357 Allen July 11, 1911 1,988,211 Nelson Ian. 15, 1935 2,024,865 McArdle Dec. 17, 1935 2,132,143 Ashley ,Oct. 4, 1938 2,419,509 Burner Apr. 22, 1947 2,494,268, Slutz Ian. 10, 1950 FOREIGN PATENTS 111;952 Sweden Sept. 26, 1944 113,171; Great Britain Feb. 14, 1918 693,784 Germany July 18, 1940-

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