US2345676A

US2345676A - Smoke filter for tobacco pipes

Info

Publication number: US2345676A
Application number: US454354A
Authority: US
Inventors: Klugherz Samuel
Original assignee: Individual
Current assignee: Individual
Priority date: 1942-08-11
Filing date: 1942-08-11
Publication date: 1944-04-04
Anticipated expiration: 1961-04-04

Description

April 4; 1944. s. KLUGHERZ- SMOKE FILTER FOR TOBACCO PIPES INVENTOR'.

Samue Z 11f hy/wrz iazwww Patented Apr. 4, 1944 UNITED STATES PATENT OFFICE 2,345,676 SMOKE FILTER FOR TOBACCO PIPES Samuel Klugherz, Poughkeepsie, N. Y. Application August 11,1942, Serial No. 454,354

1 Claim. (01. 13 -202) This invention relates to smoke filters for tobacco pipesand has particular reference to an improved filter of this character which serves to effectively absorb the liquid which collects in the smoke passage of a pipe stem so as to prevent the same from reaching the mouth of the smoker, thus contributing to the enjoyment of pipe smoking by liminating the possibility of concentrated nicotine and other impurities in the liquid coming into contact with the smokers mouth.

The invention comprehends in a smoke filter of the indicated character, a filter element composed of a flocculent .fibrous medium capable of intercepting and absorbing the liquid which finds its way into the smoke passage of the pipe stem, and this without materially interfering with the free drawing of the smoke through the stem and bit, together with means associated with the filter element for facilitating the emplacement and removal of the same and. which means also functions to locate and retain the filter in place, with the filter element adjacent to the forward end of the bit and in spaced relation to the bowl of the pipe.

As a further object, the invention is directed to an improved smoke filter in which the filter element thereof is carried'by a relatively rigid strip which is so associated with the filter element as to avoid undue compaction of the fibers thus leaving the fibers of the outer portion thereof uncompacted to thereby insure free and easy drawing of the smoke through the pipe while effectively intercepting and separating the liquid from the smoke.

More particularly the invention resides in a smoke filter consisting of a filter element and a relatively rigid strip having a looped or twisted central portion engaging the filter element for retaining the same in associated relation therewith and opposite end portions extending in opposite directions from the filter element and serving as means for facilitating the emplacement of the filter in the smoke passage of the pipe so as to position the filter element adjacent to the forward end of the bit and the opposite end portions of the strip disposed in the smoke passages of the bit and pipe stem respectively.

As a still further object the invention aims to provide an improved smoke filter for tobacco pipes which may be so economically produced and sold as to justify the discarding of the same by the purchaser after very limited use thereof.

With the above recited and other objects in view, the invention is set forth in greater detail in the following specification and illustrated in the accompanying drawing in which:

Fig. 1 is a longitudinal sectional view through a tobacco pipe showing the smoke filter in applied position within the smoke passage.

Fig. 2 is an enlarged transverse sectional view taken approximately on the line 2-2 of Fig. 1.

Fig. 3 is an enlarged perspective view of the filter removed from the pipe.

Fig. 4 is a similar view illustrating a modified form of the filter.

Referring to the drawing by characters of reference, A designates the bowl of a tobacco pipe which is provided with the usual stem B having a smoke passage C extending longitudinally thereof and communicating at its forward end with the lower portion of the bowlA. The rear end of the smoke passage C is enlarged and receives the reduced forward end D of the bit or mouth invention is designated generally by the reference character G and as shown in Figures 1 to 3 includes a filter element I0 of raw cotton or any other equivalent material which provide an absorbent, flocculent fibrous medium capable of in tercepting and absorbing the liquids or juices which collect in the smoke passage without interfering with the free drawing and passage of the smoke therethrough.

In order to provide means for facilitating the handling of the filter element In when emplacing the same in the smoke passage C of the pipe stem B or removing the same therefrom while serving as means for locating and retaining the filter element in proper position, a strip of relatively rigid material such as wire or any equivalent material is employed which is formed with a looped or twisted central portion ll extending through and grippingly engaging the longitudinal central portion of said filter element for securing the strip and filter element together while the fibers of the outer portion of said filter element are uncompacted and disposed in surrounding relation with said looped portion so as to efiectively intercept and separate the liquid from the smoke and at the same time insure free and easy drawing of the smoke through the pipe.

As shown in Figures 1, 2 and 3 the strip consists of a plurality of strands of fine gage wire which are twisted together at their ends to provide twisted opposite end portions l2 and I3 and intermediate said end portions the strands are separated to form the looped portion l I, the separated strands of which engage the longitudinal central portion of the filter element for securing the strip and the filter element together while the twisted end portions of the strip extend outwardly from the filter element in opposite directions.

The end portions or terminals [2 and I3 are of the same length which is such that when the filter is inserted in the smoke passage C of the pipe stem B, the forward end of the strip will protrude through the smoke passage and abut against the wall of the bowl to thereby space the filter element from the restricted forward end of said smoke passage while disposingthe element adjacent to the forward end of the bit ormouth piece E in a position to filter or strain the smoke before :the same enters the smoke passage F thereof, so

as to separate the liquid from the smoke and absorb and retain said liquid in the fibers of the filter element Hi, thus preventing the liquid from reaching the smokers mouth.

After the filter element H) has become saturated with the liquid, which usually occurs after several smokings, the filter G may be readily removed from the pipe by first taking out the bit or mouth piece or bit E. This exposes the rearwardly projecting end portion or terminal 13 of the strip so that the filter may be conveniently handled without having to touch the saturated filter element It]. A fresh filter G may then be readily emplaced in the pipe by inserting the forwardly projecting end portion or terminal l2 of the strip through the smoke passage C and against the portion of the wall of the pipe bowl A which is opposite to the entrance of the smoke passage.

It has been observed that the insertion of the forward end portion or terminal it of the strip functions to automatically clear the restricted forward portion of the smoke passage C of the pipe stem of tobacco particles or other obstructions so that the mere emplacement of the filter in the pipe eliminates the necessity of using pipe cleaners.

After the fresh filter has been initially introduced into the stem B of the pipe, the bit or mouth piece E is replaced by positioning the forward portion of the smoke passage F thereof over the rearwardly projecting end portion or terminal l3 of the strip and the pipe is then ready to smoke without further attention until a fresh filter is required.

In the modified form of the invention shown in Figure 4 of the drawing, the relatively rigid strip is shown as constructed of a single strand of fine gage wire having an intermediate spirally looped portion l5 engaging the longitudinal core portion of the absorbent, fiocculent, fibrous filter element I0 and in this instance the opposite end portions or terminals l6 and H are of straight linear form and respectively project forwardly and rearwardly from the filter element. In all other respects the filter and its mode of use and function are identical with that of the previous form shown and described.

I claim:

The combination with a tobacco pipe including a bowl having a stem portion formed with a smoke passage extending therethrough and communicating at its forward end with the interior of the bowl and having an enlarged rear end and a bit having a longitudinal smoke passage telescopically fitted at its forward end into the enlarged rear end of the smoke passage of the pipe stem, of a smoke filter including a relatively rigid strip of smaller cross-sectional size than the smoke passages of the stem and bit and a filter element composed of an absorbent fiocculent fibrous material secured to and surrounding the medial portion of the strip to provide oppositely projecting terminals constituting means for handling the filter so as to emplace the filter element wholly within the enlarged rear end of the smoke passage of the stem and for removing the same therefrom, the

forwardly projecting terminal of the strip extending through the smoke passage of the stem and engaging the wall of the bowl at a location opposite the smoke passage to space the filter element from the restricted forward end of the stem smoke passage and locating said filter element in abutting relation to the forward end of the bit with the rearwardly projecting terminal of the strip engaging in the bit smoke passage to retain the filter element centralized in the stem smoke passage.

SAMUEL KL-UGHERZ.