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Publication numberUS719683 A
Publication typeGrant
Publication dateFeb 3, 1903
Filing dateSep 11, 1902
Priority dateSep 11, 1902
Publication numberUS 719683 A, US 719683A, US-A-719683, US719683 A, US719683A
InventorsFrederick H A Moehlenbrock
Original AssigneeFrederick H A Moehlenbrock
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 719683 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)




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SPECIFICATION forming part of Letters Patent No. 719,6 dated February Application filed September 11,1902. Serial No. 122,921- (No model.)

To all w/wm, it may concern.-

Be it known that I, FREDERICK ll. A. MOEHLENBROCK, a citizen of the United States, residing in the city of St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Tobacco-Pipes, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to a tobacco-pipe for smokers use, the principal object of the invention being to provide a construction wherein the smoke will have a long course to travel before reaching the smokers mouth in order that it will become cooled and also a construction whereby the exterior of the pipe is maintained in a cool condition through the medium of a casing separated from the pipebowl to provide a dead-air chamber between the bowl and casing.

The invention consists in features of novelty hereinafter fully described, and pointed out in the claims.

Figure I is a vertical longitudinal section taken through a pipe constructed in accordance with my invention. Fig. II is View, partly in plan and partly in horizontal section, taken on line II II, Fig. I. Fig. III is a cross-section taken on line III III, Fig. II, through the stem, the core therein, and the casing that surrounds the stem.

1 designates the stem of the pipe, which is provided with a longitudinal bore 2 and has in its forward upper portion a threaded vertical bore 3.

4 is the mouthpiece, which is inserted into the stem 1 and is attached thereto, preferably by screw-thread connection, as seen in Fig. I. The mouthpiece is provided with a smoke-conduit 5, extending to its outer end, and contains a bore 6 of dimension corresponding to the bore 2 in the stem 1.

7 designates the bowl of the pipe, which is of clay and is seated on the forward portion of the stem 1 at the location of the vertical bore 3 therein. The bowl is secured to the stem by a screw 8, that is provided with a smoke-duct 9 and is seated in the screwthreaded bore 3, as seen in Fig. I, to hold the bowl firmly to the stem of the pipe.

10 designates a solid imperforate core located in the longitudinally-extending bores 2 and 6 of the stem 1 and mouthpiece 4. This core is provided with a spiral smoke-duct 11, that extends from an annular nicotin-receiving groove 12 at the forward end of the core beneath theduct of the screw 8 to the rear end of said core. It will be seen that the smoke drawn from the bowl 7 must to reach the mouthpiece 4 and the smokers mouth.

travel through the spiral smoke-duct of the core 10 instead of passing in a straight line through the stem of the pipe, as it does in to bacco-pipes as originally made, thereby flowing through a much longer course, with the result that it is materially cooled before it reaches the smokers mouth, owing to the great lapse of time resulting from the increased length of course.

The core 10, being of imperforate form and provided with a spiral smoke-duct 11, extending lengthwise thereof and provided with the annular nicotin-receiving groove 12, serves three distinct purposes, as follows-viz., means for cooling the smoke, means for cleaning the stem of the pipe, and provision for the reception of nicotin, which enters the annular groove 12 and remains therein to be withdrawn from the stem of the pipe on the withdrawal of the core.

13 designates a casing, preferably of metal, which is fitted to the stem 1, as seen in Figs. I and III, and is provided with a bowlinclosing jacket portion 14, that encircles the bowl 7, but is separated from the bowl a sufficient distance to provide a dead-air space 15 between the bowl and jacket for the purpose of avoiding a heated condition of the exterior of the pipe which is handled by the smoker. The casing and its jacket portion are preferably composed of two longitudinal sections that are connected by seam-joints 16. (See Figs. II and III.)

17 designates a cap that is fitted over the top of the pipe, being provided with an interior flange 18, which extends downwardly into the pipe-bowl, and an outer flange 19, that projects over the jacket-casing portion 14. (See Fig. I.) Between thebowl of the pipe and the cap 17 is a pliable ring 20, preferably of cork, that serves as a cushion between said parts to prevent liability of breakage of the pipe-bowl by a person striking the top of connected from the stem the core may be readily grasped by the fingers and withdrawn for the purpose of cleansing it, thereby removing all of the nicotin that has been deposited within the pipe-stem, so that when the core is replaced after it has been washed the pipe will be clean and sweet.

I claim as my invention- 1. In a tobacco-pipe, the combination of a stem, a bowl fitted to said stem, a casingforming a jacket surrounding said bowl and stem, and a cap fitted over said bowl and the bowl portionof said casing.

2. In a tobacco-pipe, the combination of a stem, a bowl attached to said stem, a casing and jacket portion inclosing said stem and bowl, a cap fitted over said bowl and jacket portion, and a cushion-ring located between the top of said bowl and said cap, substantially as described.

3. In a tobacco-pipe, the combination of a tubular stem, a bowl seated on said stem, a duct containing a screw by which said bowl is connected to said stem, and a spirallygrooved imperforate core arranged in said stem and provided with an annular groove located at the termination of the spiral groove beneath said screw, substantially as described.


In presence of E. S. KNIGHT, M. P. SMITH.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3308834 *May 5, 1960Mar 14, 1967Wideen-Furedy ChristinaPipe
US3422821 *Dec 6, 1967Jan 21, 1969Calkins Edward HAir insulated dry bowl pipe
US3834402 *Aug 27, 1973Sep 10, 1974Paul DSmoking pipe
US4362169 *Dec 5, 1980Dec 7, 1982Calkins Edward HAir flow dry bowl pipe
US6354301 *Aug 2, 1999Mar 12, 2002Mccoy Mark ScottTwo-piece smoking pipe vaporization chamber with directed heat intake
US6715494Nov 9, 2001Apr 6, 2004Mccoy Mark ScottTwo-piece smoking pipe vaporization chamber with directed heat intake
US7826726Jun 6, 2005Nov 2, 2010Mccoy Mark SIntra-convertible thermal vapor extraction and delivery system
US20050279353 *Jun 6, 2005Dec 22, 2005Mccoy Mark SIntra-convertible thermal vapor extraction and delivery system
Cooperative ClassificationA24F1/22