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Publication numberUS3513859 A
Publication typeGrant
Publication dateMay 26, 1970
Filing dateNov 6, 1967
Priority dateNov 6, 1967
Publication numberUS 3513859 A, US 3513859A, US-A-3513859, US3513859 A, US3513859A
InventorsCarty Margaret F
Original AssigneeH2O Filter Corp The
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Filter for smoking devices
US 3513859 A
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Description  (OCR text may contain errors)

United States Patent 3,513,859 FILTER FOR SMOKING DEVICES Margaret F. Carty, Plainfield, Vt., assignors to The H 0 Filter Corporation, New York, N .Y. Filed Nov. 6, 1967, Ser. No. 680,837 Int. Cl. A24d 1/04; A24f 25/00, 7/04 US. Cl. 131-267 3 Claims ABSTRACT OF THE DISCLOSURE This invention relates to an improvement in water filters for smoking devices such as cigarettes, cigars and pipes. It has for its purpose the provision of a filter moistened with water which, when smoke of burning tobacco is drawn therethrough, causes the products of such combustion to be trapped and retained in the moisturebearing pores of the filter.

This invention constitutes an improvement over my copending applications, Ser. No. 418,413, filed Dec. 15, 1964, now US. Pat. No. 3,366,121 and Ser. No. 662,920 filed Aug. 24, 1967, and is designed for rapid, low-cost production to meet the needs of the tobacco industry.

It is an undisputed fact that water provides the most effective cooling and cleansing agent for the removal of harmful substances produced by the combustion of tobacco, and this knowledge has served as the impetus for devising a filter in which water is released into, and retained in, an open-pore sponge type filter material, moistening the entire structure of such filtering material and causing the smoke which is drawn therethrough to be cleansed and cooled.

The present invention is suitable for high-speed, lowcost, automatic manufacture, making it economically attractive to manufacturers of cigarettes and cigars, and makers of filter devices for pipes.

With the above and other objects in view, this invention consists of the novel features, combination and arrangement of parts, hereinafter fully described, claimed and illustrated in the accompanying drawings, forming part of this application, in which similar characters of reference indicate corresponding parts in all views, and in which:

FIG. 1 is a side elevation of the device;

FIG. 2 is a top plan view of FIG. 1;

FIG. 3 is a cross-section taken on line 3-3 of FIG. 4;

FIG. 4 is a cross-section on line 44 of FIG. 1; and

FIG. 5 is a cross-section of the invention after compression thereof.

The structure of this filter device may be more easily understood by reference to drawings, in which FIGS. 1, 4 and 5 are shown having two tubular elements or interlocking cartridges 1 and 2, which are made of an imprevious material such as polyester, of such dimensions as to provide a close fit thereof when pressure is applied to the end of cartridge 1 to force it into closer engagement with carriage 2. Referring particularly to FIG. 4,

- at the closed end 3 of cartridge 2 there are perforations 4 to permit passage of smoke from burning tobacco there- 3,513,859 Patented May 26, 1970 through, into chamber 5; and shoulders 6, 6, as shown in the drawings, may be either spaced apart projections or an annular ring upon the inner wall of the said cartridge, to retain filter body 7 in its position within said cartridge.

A rupturable container or capsule 8, partially filled with water, is disposed in chamber 9.

Upon the outer wall of said cartridge 2 a series of spaced apart projections or an annular ring, as shown at 10, 10 serves as a stop to control the extent to which cartridge 1 may be telescoped over cartridge 2.

Continuing with the structure as shown in FIG. 4, cartridge 1 likewise has a filter body 11 disposed in the chamber 12 formed when the leading end of said cartridge 1 is fitted over cartridge 2, said filter body having rupturing means 13 integrally attached to the closed end 14 of said cartridge 1 and extending longitudinally through said filter body 11; and perforations 15 in said closed end 14 to permit the passage of smoke drawn through the moisture-bearing filter bodies 7 and 11, into chamber 16. Above said last-mentioned chamber a series of spaced apart projections or an annular ring, shown at 17, 17, serves as a base for a dry filter element 18, said latter element being formed of fibres such as cellulose, paper, or like materials, crimped and disposed in longi tudinal order by folding, rolling, or similar means, to provide facile passage and partial drying of the smoke which has been previously moistened and cleansed by its passage through said moisture-bearing filter bodies 7 and 11. The recess 19 at the mouth tip of the device prevents the smokers tongue from coming into direct contact with said dry filter element.

In FIG. 5 the same features are shown, with the means 13 having penetrated the wall of container 8, and having thereby released the water content of said container into the filter bodies 7 and 11. While the filter bodies, compressed by the telescoping action of the interlocking cartridges, will have expanded upon collapse of the container 8 there remains a space 9 formerly occupied by the said container wherein the smoke circulates before being drawn into and through the second of said filter bodies, numbered 11. The water held by capillary attraction upon the walls of this chamber serves further to cleanse and cool the smoke.

Said filter bodies, briefly compressed upon the forcing of cartridge 1 into maximum telescoped relationship over cartridge 2, instantly expand when the water from container 8 is released into their adjacent portions, and the water continues to permeate said filter bodies until each of them has a substantially uniform moisture content throughout. At the same time, by capillary attraction, some part of the water thus released from the capsule is retained upon the walls of chamber 9, thus providing an additional cleansing of the smoke from the burning tobacco as the same is drawn through the device.

The advantage of the present structure lies in the control that may be exercised over the absorptive capacity of the filtering bodies, both by the selection of a suitable type of open-pore cellular structure and by the substantially consistent dimensions of the said bodies. Thus a uniform moistening of the smoke is achieved, with like uniformity of the cleansing and cooling action of the filter device.

Said device may be made in sizes suitable for integral attachment to the ends of cigarette bodies, or upon cigars as an integral part thereof; or it may be made in a size or sizes suited for insertion in holders for cigars or cigarettes, or into the stem of a pipe. In each case, prior to lighting the smoking device, pressure is exerted upon the end thereof which constitutes the mouth tip of the cigar or cagarette, or the end, in a cigar or cigarette holder or a pipe stem, which will be nearest the mouth of the smoker. By this pressure the rupturing means penetrates the wall of the capsule and releases its water content, thus bringing into operation the cleansing action of the filter bodies thus moistened and moisture-bearing throughout their structure.

It is obvious that changes may be made in the form and construction shown and described herein, within the spirit of the invention, and I do not, therefore, wish to confine myself to the exact disclosure set forth herein.

What I claim as my invention and wish to secure by Letters Patent of the United States is:

1. A filter for smoking devices such as cigarettes, cigars and pipes, comprising interlocking cartridges having the proximate ends of said cartridges slidably disposed, the one within the other, and Within at least one of said cartridges, compressed, absorbent, water-expansible material and adjacent to said material, at least one rupturable hollow body having a water content therein, said other cartridge including filter material, and said rupturable hollow body being positioned between said absorbent and filter materials; and integrally formed with at least one of said cartridges, means for rupturing said hollow body upon the interaction of said cartridges when telescopical- 1y compressed whereby, upon said compression and rupture of said hollow body, the hollow body collapses and the water content thereof is released into and absorbed by said compressed, absorbent, water-expansible material, and said absorbent material thereby expands to at least partially fill the space previously occupied by the hollow body prior to the puncture, emptying, and subsequent collapse thereof.

2. The invention of claim 1, having said rupturing means in the form of at least one pointed member so disposed within said cartridge as to puncture said hollow body when forced into penetrative contact therewith.

3. The invention of claim 1, wherein said cartridges maybe telescopically compressed for a predetermined distance upon the longitudinal axes thereof, further telescoping being prevented by projecting means upon the outer wall of the smaller of said cartridges.

References Cited UNITED STATES PATENTS 3,366,121 1/1968 Carty 131-10.1 3,428,049 2/1969 Leake et al. 13110.1 2,755,206 7/1956 Statia 13110.1 3,250,280 5/1966 Hu 13110.1 X 3,334,636 8/1967 Zuber 13110.1 3,339,557 9/1967 Karalus 13110.1 X

SAMUEL KOREN, Primary Examiner J. H. CZERWONKY, Assistant Examiner U.S. Cl. X.R. 13l10.l, 10.7,173

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2755206 *Aug 17, 1953Jul 17, 1956Edward L ChapmanTobacco smoking article
US3250280 *Mar 3, 1964May 10, 1966Yow-Jiun HuSmoking apparatus
US3334636 *Jun 23, 1964Aug 8, 1967Zuber Alexander AFilter for smokers' article
US3339557 *Mar 12, 1965Sep 5, 1967Karalus Lew WCigarette and smoke filter and flavor means
US3366121 *Dec 15, 1964Jan 30, 1968H 2 O Filter CorpFilter cigarettes
US3428049 *Dec 21, 1965Feb 18, 1969American Tobacco CoTobacco smoke filter element
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3602235 *Oct 16, 1969Aug 31, 1971H 2 0 Filter Corp TheAdjustable filtering device for smoking articles
US3669128 *Nov 9, 1970Jun 13, 1972Cohen Joseph HDevice for filtering tobacco smoke
US4209026 *Dec 2, 1977Jun 24, 1980Dock Mortimer RMethod of securing a filtering mass for tobacco smoke within a housing encompassing said mass
US4319590 *Nov 20, 1980Mar 16, 1982Patarra Sam FCigarette with removable smoke-modifying cartridges
US5067500 *Nov 20, 1990Nov 26, 1991Philip Morris IncorporatedContainer for additive materials for smoking articles
US5133367 *Sep 13, 1991Jul 28, 1992Philip Morris IncorporatedContainer for additive materials for smoking articles
US6631722 *Sep 22, 1994Oct 14, 2003British-American Tobacco Company LimitedTobacco smoke filter elements
US7115085Sep 12, 2003Oct 3, 2006R.J. Reynolds Tobacco CompanyMethod and apparatus for incorporating objects into cigarette filters
US7249605Oct 10, 2003Jul 31, 2007British American Tobacco (Investments) Ltd.Tobacco smoke filter elements
US7479098Sep 23, 2005Jan 20, 2009R. J. Reynolds Tobacco CompanyEquipment for insertion of objects into smoking articles
US7654945Aug 4, 2006Feb 2, 2010R.J. Reynolds Tobacco CompanyMethod and apparatus for incorporating objects into cigarette filters
US7793665Aug 14, 2006Sep 14, 2010R.J. Reynolds Tobacco CompanyFiltered cigarette incorporating a breakable capsule
US7833146Dec 23, 2009Nov 16, 2010R.J. Reynolds Tobacco CompanyMethod and apparatus for incorporating objects into cigarette filters
US7836895Jun 23, 2003Nov 23, 2010R. J. Reynolds Tobacco CompanyFiltered cigarette incorporating a breakable capsule
US7972254Jun 11, 2007Jul 5, 2011R.J. Reynolds Tobacco CompanyApparatus for inserting objects into a filter component of a smoking article, and associated method
US7984719Oct 12, 2010Jul 26, 2011R. J. Reynolds Tobacco CompanyFiltered cigarette incorporating a breakable capsule
US8066011Sep 30, 2003Nov 29, 2011R. J. Reynolds Tobacco CompanyFiltered cigarette incorporating an adsorbent material
US8142339Oct 19, 2010Mar 27, 2012R.J. Reynolds Tabacco CompanyMethod and apparatus for incorporating objects into cigarette filters
US8186359Feb 1, 2008May 29, 2012R. J. Reynolds Tobacco CompanySystem for analyzing a filter element associated with a smoking article, and associated method
US8262550Mar 19, 2009Sep 11, 2012R. J. Reynolds Tobacco CompanyApparatus for inserting objects into a filter component of a smoking article
US8308623Oct 28, 2008Nov 13, 2012R.J. Reynolds Tobacco CompanyApparatus for enhancing a filter component of a smoking article, and associated method
US8470215Jan 25, 2008Jun 25, 2013R. J. Reynolds Tobacco CompanyProcess for manufacturing breakable capsules useful in tobacco products
US8475348Sep 28, 2010Jul 2, 2013Aiger Group AgApparatus and method for assembly of multi-segment rod-like articles
US8512213Feb 20, 2012Aug 20, 2013R.J. Reynolds Tobacco CompanyMethod and apparatus for incorporating objects into cigarette filters
US8574141Aug 9, 2012Nov 5, 2013R.J. Reynolds Tobacco CompanyApparatus for inserting objects into a filter component of a smoking article
US8622882Sep 27, 2010Jan 7, 2014Aiger Group AgApparatus and method for insertion of capsules into filter tows
US8739802Oct 2, 2006Jun 3, 2014R.J. Reynolds Tobacco CompanyFiltered cigarette
CN101232825BAug 14, 2006Nov 16, 2011菲利普莫里斯生产公司Liquid release device for a smoking article
EP0395291A2 *Apr 18, 1990Oct 31, 1990Philip Morris Products Inc.Container for additive materials for smoking articles
EP1754419A1 *Aug 15, 2005Feb 21, 2007Philip Morris Products S.A.Liquid release device for a smoking article
EP2537426A2Sep 18, 2006Dec 26, 2012R. J. Reynolds Tobacco CompanyEquipment for insertion of objects into smoking articles
EP2554060A1Aug 1, 2011Feb 6, 2013JT International S.A.Filter element incorporating a breakable capsule, method of manufacturing a cigarette having a filter element incorporating a breakable capsule and apparatus for manufacturing the cigarette having a filter element incorporating a breakable capsule
WO2007038053A1Sep 18, 2006Apr 5, 2007Reynolds Tobacco Co REquipment for insertion of objects into smoking articles
WO2007060543A2 *Aug 14, 2006May 31, 2007Philip Morris ProdLiquid release device for a smoking article
WO2007090594A1 *Feb 5, 2007Aug 16, 2007Bel Air Internat CorpDisposable nicotine sustained release depot and smoke-free cigarette with said disposable nicotine sustained release depot
WO2010107756A1Mar 16, 2010Sep 23, 2010R. J. Reynolds Tobacco CompanyApparatus for inserting objects into a filter component of a smoking article, and associated method
WO2011094171A1Jan 25, 2011Aug 4, 2011R. J. Reynolds Tobacco CompanyApparatus and associated method for forming a filter component of a smoking article
WO2013017624A1Aug 1, 2012Feb 7, 2013Jt International S.A.Filter element incorporating a breakable capsule, method of manufacturing a cigarette having a filter element incorporating a breakable capsule and apparatus for manufacturing the cigarette having a filter element incorporating a breakable capsule
Classifications
U.S. Classification131/337, 131/173
International ClassificationA24D3/06, A24D3/00
Cooperative ClassificationA24D3/061
European ClassificationA24D3/06B