US2606561A - Smoking pipe - Google Patents

Description

J. J- DOERR SMOKING PIPE lAn/s/vr'or? JUSTIN J. Do ERR HT roe/v5) Filed July 19, 1946 Aug. 12, 1952 Patented Aug. 12, 1952 SMOKING PIPE Justin J. Doerr, St. Louis, Mo.;. Grace Doerr executrix of said Justin J i Doerr, deceased.

Application July 1.9, 1946, Serial No; 684,692

This invention relates to certain new and useful improvements in smoking pipes.

It is the principal object of the present invention to provide a smoking pipe uniquely designed for the rapid and eflicient dissipation of heat and resultant cooling of the smoke prior to the time it reaches the smokers mouth, thereby producing a cool smoke and also condensing substantially all of the tars, tar acids, nicotine, and other acrid, bad tasting ingredients in tobacco smoke.

It is a. further object of the present invention to provide a smoking pipe having unique valve means adapted for controlling the draft through the pipe and sealing oil the bowl portion of the pipe from the stem portion, thereby preventing tar, nicotine, moisture, and other liquids which normally collect in the stem, from flowing reversely into the bowl and rendering the bowl soggy. or, in extreme cases, running out into the coat pocket of the user when the pipe is being carried during periods of non-use.

It is a further object of the present invention to provide a smoking pipe having a metallic stem and a wooden bowl connected in such a manner as to reduce to a minimum the normal conductive flowof heat from the bowl to the stem during actual use, the stem, furthermore, being uniquely constructed so as to dissipate rapidly whatever heat may be transmitted from the bowl to'the stem, thereby providing a pipe which may be handled without danger of burning or scorching the usersfingers or hands.-

It is also an. object of the'present invention to provide a smoking pipe having a metallic stem which may be readily taken apart and cleaned ina very simple, eificient, and thorough manner.

And with the above and other objects in view, myinvention resides in the novel features of form, construction. arrangement, and combination ofparts presently described and pointed out in the claims.

In the accompanying drawings:

Figure 1 is a partly broken away top plan view ofa smoking pipe constructed in accordance with and embodying the present invention;

Figure 2 is a longitudinal sectional view of the smoking pipe taken along line 22 of Figure 1; V

Figure 3 is a side elevational so-called exploded view of the pipe;

Figures 4, 5, and 6, are fragmentary sectional views taken along-lines 4-4, 5'-5, and 6-6, respectively, of Figure 2; and

Figure 7 is a fragmentarysectionalview similar to Figure 6 showing the valve construction in "ofi or closed position.

Referring now in more detail, and by reference characters to the drawings, A designates a smoking pipe constructed in accordance with the present invention which comprises a tubular 4 Claims. (Cl. 1319-212):

aluminum stem I preferably of circular crosssection throughout its length, and integrally provided at its one end with a closure wall}. A short distance inwardly from the closure .wall 2, the stem l is integrally provided with an enlargedbowl mounting section 3 preferably of square cross section and provided upon its top wall 4 with an upwardly extending circular seat 5 which is peripherally undercut, as at 6', for receiving a rounded or crlmped circular band 1 formed preferably of copper or other suitable soft metal and adapted to. engage a complementarily' undercut seat portion 8 formed integrally upon the lower end of a turned briar bowl 9, the band 1 thus serving to hold the bowl 9 firmly and tightly against the bowl seat 5. Furthermore, the bowl 9 and seat 5 are provided with axially aligned bores In, H, the latter extending through and communicating with the interior of the stem l.

At its inner or open end, the stem I is flared slightly as at [2 and interiorly ground to provide a tapered end socket I3 for snugly receiving a tapered collar portion 14 formed integrally with an inner or intermediate aluminum stem-tube 15 which is substantially smaller in diametral size than the inner diametral. size of the stem l and projects thereinto and is integrally provided at its end with a diametrally enlarged valve-. forming plug [6 having an integral closure-forming end wall It". Thevalve plug it, furthermore, is machined. upon its outer cylindrical face H. to a substantially close tolerance for snug fitting rotative engagement, within the stem I. It will be notedthat the intermediate. stem-tube i5 is of such length that the plug 16' will extend beneath and project a short distance beyond the bore H when the collar portion [4 is securely seated within the tapered end socket l3, terminating somewhatv short of the end wall 2 of the stem l in the provision of a. small enclosed space s adapted to serve, as will presently be pointed out, as a sort of moisture trap, and the plug [5 is provided, upon its outer surface [1, with a pair of diametrally opposite axially extending milled slots, is opening at opposite ends to the moisture trap s and to the annular space between the stem l and the intermediate stem-tube l5. At its inner end, the tube i5 is provided with a bit receiving extension ['9' internally bored adjacent to its outer end in the provision. of a tapered bitsocket 2H, and is externally provided with a diametrally enlarged, collar portionv 2| which is, in turn, provided with diametrally opposite flats 22 disposedat to the slots l8 for the dual purpose of facilitating manipulation and" for visibly indicating the relative position of the slots 18, inasmuch as the latter are entirely concealed from view when the pipe A is fully assembled. A short distance outwardly from the collar portion M, the stem-tube I5 is provided with diametrally opposite apertures 23 for providing communication between the interior of the stem-tube I and the annular space between the inner face of the stem I and the stemtube I5.

Provided for disposition within the stem-tube I5 is a mouth piece or bit 24 formed of Bakelite, hard rubber, or other suitable pipe-bit material,

and provided with a tapered seat25 andcylindrical insert portion 25 diametrally sized and shaped for snug fitting disposition, respectively, within the tapered bit socket and the end portion IQ of the stem-tube I5. Fixed within, and

projecting axially from, the outer end of the bit 24 is an aluminum bit-extension tube 2'l substantially smaller in external diametra1 size than the internal diametral size of the stem-tube I5, and opening at its outer end a short distance from the closed end wall I6 of the stem-tube 15. When the pipe is assembled for smoking, as shown in Figures 1 and'2, the flats 22' of the stem-tube I5 are gripped between the fingers and rotated until they are more or less parallel withlthe vertical axis of the bowl 9 so that one of the slots I8" will be brought into underlying registration with the bore II through which smoke may be drawn when the smoker applies suction to the mouth piece or bit 24. Insuch position, the other slot I8 will be disposed at its lowermost point so as to provide a drainage and communication channel between the moisture trap s and the adjacent inner portion of the stem I. In such position, the bowl 9 may be filled'with tobacco and smoked in the usual manner, whereupon the smoke will travel downwardly through the bores II], II, and through the upper slot I8 into the annular space between the stem I and the stem-tube I5. Thereupon, the smoke reverses its direction and flows outwardly again into the open outer end of the bit extension 21, whereupon it reverses its direction again and flows inwardly through the bit extension 21 and the bit 24 into the mouth of the smoker. During this attenuated and circuitous path of travel, the smoke is brought into intimate'contact with a relatively large area of metallic surfaces which serve to absorb and conduct away the heat thereof, thus cooling the smoke and condensingout of the smoke practically all of the tar, tar acid, nicotine, and other acrid tasting components. The majority of condensation of moisture, tar, tar acid, and the like takes place in the annular space between the stem I and the stem-tube l5 and the condensed liquid material will drain downwardly into the bottom of the stem I and thence flow downwardly and outwardly through the lowermost slot I8 into the moisture trap s. It should also be noted that the smoke, at the point of entry into the stem I, is substantially cooler because of the large mass of heat dissipating material, both in the valve plug portion I5, as well as in the seat forming portion 3. Furthermore, the amount of heat transmitted from the burning coals within the pipe bowl to the stem proper is reduced to a minimum by reason of the fact that there are no metallic members extending from the interior of the bowl downwardly into heat conductive relation with the stem I, and the connective ring 6 is externally located so that it tends to radiate rather than transmit heat from the outer face of the lower portion of the bowl, and in the final analysis this ring is fairly remote from the area of actual combustion on the inside of the bowl 9.

When the smoker has finished smoking the pipe, the stem-tube I5 may be rotated from the position shown in Figure 6 to the position shown in Figure 7, thereby closing off the bore- II and trapping all of the moisture andjcondensate within the pipe so that if the pipe is carried in the pocket of the smoker there will be little danger of unpleasant dripping of liquid materials into the pockets of his clothing. When it is de- 1 sired, the pipe may be simply and readily cleaned by removing both the bit 24 and the stem-tube I5 and flushing them out with alcohol or wiping them clean with a rag, tissue paper, pipe cleaner, or other suitable means.

It should be understood that changes and modifications in the form, construction, arrangement, and combination of the several parts of the smoking pipe may bemade and substituted for those herein shown and described. without departing from the nature and principle of my invention. i

Having thus described my invention, whatI claim and desire to secure by Letters Patent is:

'1. A smokingpipe comprising a stem, a bowl 7 mounted on said stem and having an opening thereinto, a tube of smaller diameter manur stem disposed concentrically within said stem and beingprovided onits outer end with an enlarged valve-formingplug extending beyond the bowl opening and having an external diametral size substantially equal to the internal diametral size of the stem for snug-fitting slidable engagement therewith wherebyto divide the stem into a moisture trap on one side of the ibowl-and a smoke chamber on the other side of the bowl, a closure wall provided on the end of said plug forming one wall of the moisture trap, the outer surface of said plug being provided with-first and second longitudinal slots located on diametrically opposite sides of the valve-forming plug, means for rotating said plug whereby in one position the bowl opening is in registration with the first slot forcommunication with themterior of the bowl and the second slot' provides a passageway-along the bottom of-th stem between the smoke chamberand;themoistpre trap and whereby in-a second position communication between the bowl opening and the smokejchame her is prevented, and a mouth bit meansmounted insaidtube. ;;i 5',

2.-A smoking pipe comprisinga stem;:a bowl mounted on said stem, and-having an'opening thereinto, a tube of smaller diameter than: the stem disposed concentrically,withinysaid stem and beingprovided on its;outer end with an-enlarged valve-forming plug extending beyondl -the bowl opening and having an exterjnalydiametral size substantially equal to the internaldiametral size of the stem for snug-fitting slidable engagement therewith whereby to divide the'stem into a moisture trap on one sided the bowl anda smoke chamber on the other side of the bow1,a closure wall provided on the end of said plug forming: one wall of the moisture trap, the outer surface-of said plug being provided with first and second longitudinal slots located on diametrally opposite sides of the valve-forming plug, means on the inner end of said tube for indicating the position of saidslots relative to said bowl opening. and for rotation of said plug whereby in'one position the bowl opening is in registration with the first slot for communication with-the interior of the bowl and the second slot provides a passageway along the bottom. of the stem. between the smoke chamberandthe moisture trap and whereby in a second "position communication between the bowl opening and the smoke chamber is prevented, and a mouth bit means mounted in said tube.

3. A smoking pipe comprising a stem, a bowl mounted on said stem and having an opening thereinto, an intermediate tube removably disposed concentrically within said stem and being provided on its outer end with a diametrally enlarged valve-forming plug extending beyond the bowl opening and at its inner end with a tapered collar for engagement with the end of the stem, said plug having a pair of axially extending diametrally opposite longitudinal slots formed in its outer surface, means for rotating said plug for optional registration of one of the slots with the bowl opening, and a mouth bit means mounted reinovably on the end of said tube having a draft tube extending coaxially outwardly into the intermediate tube.

4. A smoking pipe comprising a stem, a bowl mounted on the stem and having an opening con meeting the interior of the bowl with the interior of the stem, an intermediate tube removably disposed concentrically within the stem, said intermediate tube having an outside diametral size substantially smaller than the inside diametral side of the stem, said tube having a diametrally enlarged valve-forming :plug at the outer end thereof snugly and rotatably fitted within the stern, said tube further beingprovided adjacent its inner end with a diametrally enlarged collar, the distance between the collar and the plug being substantially shorter than the overall length of the stem so that a moisture trapping chamber is formed between the outer end of the plug and the end of the stem and an outer annular smoke chamber is formed betwen the plug and the collar, said valve-forming plug being provided;

upon its outer surface with a pair of axially extending diametrally opposite slots opening at their ends respectively to the moisture trapping chamber and the outer smoke chamber, said 'intermediate tube being provided adjacent to and outwardly of the collar with a pair of diametrally opposite apertures, a mouth bit removably mounted at the outer end of th intermediate tube and having a smoke tube extending ooaxially into the intermediate tube, said smoke tube being substantially smaller in diameter than the intermediate tube and terminating at its outer end adjacent to, but somewhat short, of the plug-end of said intermediate tube so that when one of the slots is aligned with the opening between the bowl and the stem and the pipe is smoked by the smoker, smoke will be drawn into the outer smoke chamber in the direction of the mouth bit and thence through the apertures into the annular space between the smoke tube and into the interior of the intermediate tube and thence outwardly to the open outer end of the annular smoke tube and finally inwardly through the smoke tube and out of the mouth bit in such a manner that volatile tars and moisture globules carried by the smoke will be substantially condensed and will run outwardly along the bottom interior face of the stem andthrough the downwardly disposed valve-plug slot into the moisture trap so as to provide a substantially clean cool smoke.

JUSTIN J. DOERR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 493,150 Chorley Mar. 7, 1893 1,065,008 Tufts June 17, 1913 1,511,693 Gaisman Oct. 14, 1924 1,886,124 Sasser Nov. 1, 1932 2,124,221 Jacobs July 19, 1938 2,146,256 Gobel r Feb. 7, 1939 2,250,643 Mariani July 29, 1941 2,288,879 Ballentine July 7, 1942 2,293,221 Rubens Aug. 18, 1942 2,357,018 Miller Aug. 29, 1944 FOREIGN PATENTS Number Country Date 833,388 France July 18, 1938 14,895 Great Britain or" 1887 3,309 Great Britain of 1890 85,615 Switzerland July 16, 1920- 116,195 Switzerland Aug. 2, 1926

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