Cooling Air Passages Patents (Class 131/195)
  • Patent number: 11883587
    Abstract: An aerosol delivery device and a substrate tablet for use with an inductively-heated aerosol delivery device are provided. The aerosol delivery device comprises a control body having a housing, a mouthpiece portion located proximate the housing, a resonant transmitter located in the control body, a control component configured to drive the resonant transmitter, and a substrate tablet receivable in the device. The substrate tablet may comprise a granular substrate material and a susceptor component, the substrate material and the susceptor component may be configured to be formed together, and the susceptor component may be configured to be heated by the resonant transmitter.
    Type: Grant
    Filed: February 21, 2023
    Date of Patent: January 30, 2024
    Assignee: Nicoventures Trading Limited
    Inventors: Billy T. Conner, Karen H. Cleckley, Thaddeus Jackson, Cortney Rasheen Jackson
  • Patent number: 10859459
    Abstract: A system for testing and validating the performance of a pressure sensor includes a test fixture operatively connected to the pressure sensor, and the pressure sensor is configured to identify a fluid pressure relative to an atmospheric pressure. A microcontroller is in electrical communication with the test fixture and the pressure sensor, and the microcontroller is configured to cause the test fixture to introduce air and/or vapor through the pressure sensor at a known fluid pressure. The microcontroller is also configured to receive the identified fluid pressure from the pressure sensor, the identified fluid pressure being based on the air and/or vapor flowing through the pressure sensor. A power source is in electrical communication with the microcontroller, and a display is in electrical communication with the microcontroller. The display is configured to display results to a user, the results comprising the determination of the performance of the pressure sensor.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: December 8, 2020
    Assignee: R.J. REYNOLDS TOBACCO COMPANY
    Inventor: Rajesh Sur
  • Patent number: 10426197
    Abstract: An aerosol-generating system includes a liquid storage portion having a housing holding a liquid aerosol-forming substrate and a capillary medium. The housing has an opening. A fluid permeable heater assembly includes an arrangement of electrically conductive filaments arranged to define a substantially non-planar air impingement surface. The fluid permeable heater assembly extends across the opening of the housing. The capillary medium is provided in contact with the heater assembly. The capillary medium draws the liquid aerosol-forming substrate to the electrically conductive filament arrangement. The capillary medium includes a capillary medium opening allowing airflow to pass through the capillary medium.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: October 1, 2019
    Assignee: ALTRIA CLIENT SERVICES LLC
    Inventor: Michel Thorens
  • Patent number: 10244794
    Abstract: An aerosol-generating system includes a liquid storage portion including housing holding a liquid aerosol-forming substrate and a capillary medium. The housing has an opening. A fluid permeable heater assembly includes an arrangement of electrically conductive filaments arranged to define an air impingement surface. The fluid permeable heater assembly extends across the opening of the housing. The filament arrangement defines a filament opening allowing airflow to pass through. The capillary medium is provided in contact with the heater assembly. The capillary medium is configured to draw the liquid aerosol forming substrate to the electrically conductive filament arrangement. The capillary medium includes a capillary medium opening extending the filament opening through the capillary medium.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: April 2, 2019
    Assignee: Altria Client Services LLC
    Inventor: Michel Thorens
  • Patent number: 10104911
    Abstract: There is provided an aerosol generating system for heating a liquid aerosol-forming substrate. The system includes an aerosol-forming chamber, and a leakage preventer for preventing or reducing leakage of liquid aerosol condensate from the aerosol generating system. The leakage preventer may include one or more of: at least one cavity in a wall of the aerosol-forming chamber, for collecting droplets of condensed liquid aerosol-forming substrate; at least one hooked member for collecting droplets of condensed liquid aerosol-forming substrate; an impactor for disrupting airflow in the aerosol-forming chamber so as to collect liquid droplets; and a closure member for substantially sealing the aerosol-forming chamber when the aerosol generating system is not in use.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: October 23, 2018
    Assignee: Philip Morris Products S.A.
    Inventors: Michel Thorens, Jean-Marc Flick, Olivier Yves Cochand, Flavien Dubief
  • Patent number: 9968128
    Abstract: A waterpipe arrangement that, in at least some configurations, is used with a water-based flavored substance instead of tobacco or other substances. In some configurations, the perforated foil has perforations in an annular arrangement configured to reduce, minimize or prevent coal ash from being introduced into the vapor consumed by the user. In some configurations, the consumable vapor-producing substance is in the form of a gel and can be provided in individual packaging. The individual packaging can be configured for placement directly into a receptacle of the bowl of the waterpipe. In some configurations, a single-use or disposable bowl is provided containing a consumable vapor-producing substance. The present disclosure also involves a pre-perforated foil or screen or a tool for perforating a foil.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: May 15, 2018
    Assignee: Healthy Hookah, LLC
    Inventors: Abdalla Alfawaz, Ayman Abdel Nour
  • Patent number: 9095174
    Abstract: Disclosed are various embodiments of an electronic hookah. In some embodiments, the electronic hookah comprises a body, a power supply, and one or more smoking units having a smoking device, a connection socket, a tube, an air flow switch, and a power connector. The tube is disposed between the connection socket and the air flow switch, and the smoking device is releasably attached to the connection socket. Further, the power supply provides power to the connection socket over the power connector, and the connection socket provides power to the smoking device to produce smoke or vapor. The smoking device may comprise an atomizer and smoke juice containing flavorings, coloring agents, nicotine, and/or a vaporizing base.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: August 4, 2015
    Assignee: SIS RESOURCES LTD.
    Inventor: Sammy Capuano
  • Patent number: 8689805
    Abstract: An atomizing electronic cigarette has an atomizing core component and a liquid storage component, including an electric heater. The electric heater may have a through hole aligned with a channel passing through the liquid storage component. The cigarette can heat and uniformly vaporize liquid from the liquid storage component, with the user inhaling the vaporized liquid. The vapor generated by the atomizing process may be cooled as it flows through the channel.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: April 8, 2014
    Assignee: Fontem Holdings 1 B.V.
    Inventor: Lik Hon
  • Patent number: 8678014
    Abstract: The present invention provides a method for drying a molded product for a non-combustible smoking article, including preparing a molded product for a non-combustible smoking article corresponding to two non-combustible smoking articles includes an aerosol generating section which generates aerosol when heated and carbonaceous heat sources fitted to both ends of the aerosol generating section, covering the aerosol generating section with a far infrared reflective cover, and irradiating the carbonaceous heat sources with far infrared radiation from a far infrared heater.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: March 25, 2014
    Assignee: Japan Tobacco Inc.
    Inventors: Ryutaro Tsuruizumi, Manabu Takeuchi, Manabu Yamada
  • Patent number: 8490627
    Abstract: This invention vaporizes a botanical substance for inhalation using a combustion generated heat source. A substantially planar non-porous heat exchanger transfers heat to the inhalation air and keeps combustion byproducts separated from the inhalation air. In use, air is drawn past the heat exchanger and then through a reservoir holding the botanical substance, vaporizing any volatiles in the substance. The heat exchanger assembly can be magnetically attached to the pipe assembly.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: July 23, 2013
    Inventors: Steven Elliot Levin, Don Barker Bliss
  • Publication number: 20090173355
    Abstract: The preferred embodiments of the present invention holds significant improvements and serves as an integrated pipe and lighter system apparatus comprising: a repository for containing a tobacco product; a selectively removable and refillable fuel container; a mouthpiece; an adjustable vented combustion chamber; an ignition switch; a fine gauge screen; a C-Clip; and a coarse screen. The integrated pipe and lighter system of the present invention substantially ensures the smoker will always have a “light” for consuming tobacco products. The fuel container of the most preferred embodiment of the present invention is refillable and has an adjustable flame height. The integrated pipe and lighter system can be safely stored during non-use periods in a protective storage tube.
    Type: Application
    Filed: October 22, 2008
    Publication date: July 9, 2009
    Inventor: Dion Johnson
  • Patent number: 7231923
    Abstract: A smoking article includes a tobacco rod in axial alignment with a filter section with a catalyst bed disposed between the tobacco rod and the filter section. The catalyst bed may be heated from an external portable heating source or may be heated by the internal evolving gases of combustion of the tobacco.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: June 19, 2007
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Kayyani C. Adiga, Rufus H. Honeycutt
  • Patent number: 6994096
    Abstract: A heater fixture for use in an electrically heated cigarette smoking system having a source of electrical energy for heating a cigarette includes an inner wall or barrel having at least one opening through the inner wall extending from an outer peripheral surface to an inner surface of the inner wall, and at least one flow distributing element positioned within the at least one opening and extending inwardly from the inner surface. The flow distributing element or elements are provided with a plurality of openings that are in fluid communication with an interior of the heater.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: February 7, 2006
    Assignee: Philip Morris USA Inc.
    Inventors: Ali A. Rostami, Susan E. Wrenn
  • Publication number: 20020005207
    Abstract: An electrical smoking system comprising a cigarette and an electric lighter, wherein the cigarette comprises a tubular tobacco mat partially filled with material tobacco so as to define a filled tobacco rod portion and an unfilled tobacco rod portion. The cigarette and the lighter are mutually arranged so that when the cigarette is received in the lighter, the electrical heater element of the lighter at least partially superposes at least a portion of the filled tobacco rod portion. The cigarette and the lighter are also mutually arranged so that when the cigarette is received in the lighter, the free end of the cigarette is occluded. The cigarette includes a zone of perforations at a location along the filled tobacco rod portion, with the cigarette being free of perforations along the unfilled tobacco rod portion. An apparatus for perforating a cigarette which can be smoked in an electrical smoking device includes a drum link-up assembly and a laser perforating apparatus.
    Type: Application
    Filed: March 23, 2001
    Publication date: January 17, 2002
    Inventors: Susan E. Wrenn, A. Clifton Lilly, Traci L. Franklin, Patrick H. Hayes, Mary Ellen Counts, Wesley G. Sanderson, Brett W. Stevenson, William James Crowe, Charles W. Harris, Donald H. Jones, Barry S. Smith, Jeffrey A. Swepston, Mikhail S. Braunshteyn, James W. Hall
  • Patent number: 5738116
    Abstract: An improved fluid-cooled smoking device wherein the smoke is bubbled up through the fluid contained in one reservoir or housing and then mixes and flows with this fluid as it is flowing into another fluid containing reservoir or housing, which the smoke also bubbles up through, resulting in a cooler and cleaner smoking experience. Also the improved fluid-cooled smoking device allows for conveniently drawing in the smoke through the nose allowing one to smell the "bouquet" of a fine tobacco or to draw medicinal herb smoke into and through the sinus cavities.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: April 14, 1998
    Inventor: Michael T. Truelove
  • Patent number: 5464026
    Abstract: A device for smoking tobacco and the like has a housing having an upper wall and a lower wall, the upper wall mounting an air-permeable membrane communicating with a channel formed between the walls, and the channel being open at an end to the atmosphere. The upper and lower walls are preferably substantially planar and releasably attached together, for example by magnetic means. The air-permeable membrane suitably has a metal gauze mounted in an aperture formed in the upper wall, and the channel is preferably labyrinthine in form.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: November 7, 1995
    Inventors: James H. Gardner, Nicholas M. Crayson
  • Patent number: 5269327
    Abstract: An article is provided in which a tobacco flavor medium is electrically heated to evolve inhalable tobacco flavors or other components in vapor or aerosol form. The article has a plurality of charges of the tobacco flavor medium which are heated sequentially to provide individual puffs.
    Type: Grant
    Filed: August 7, 1991
    Date of Patent: December 14, 1993
    Assignee: Philip Morris Incorporated
    Inventors: Mary E. Counts, Bernard C. LaRoy, D. Bruce Losee, Jr., Constance H. Morgan, Ulysses Smith, F. Murphy Sprinkel, Jr., Francis V. Utsch
  • Patent number: 5159940
    Abstract: A smoking article in which a flavored aerosol is generated by heat transfer to a flavor bed from the combustion of a carbon heat source is provided wherein the carbon heat source and the flavor bed are contained within a non-combustible substantially cylindrical hollow ceramic sleeve. The article generates substantially no sidestream smoke. The transfer of heat from the heat source is accomplished by convective and radiative heat transfer.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: November 3, 1992
    Assignee: Philip Morris Incorporated
    Inventors: Charles R. Hayward, Harry V. Lanzillotti, David E. Merrill, Edward B. Sanders, D. Bruce Losee, Jr., John R. Hearn
  • Patent number: 5099861
    Abstract: An aerosol delivery article includes a longitudinally segmented combustible fuel element, and a substrate carrying flavor or a drug positioned physically separate from the fuel element. The fuel element is composed of a carbonaceous material and is extruded in such a manner that when positioned within the article, its extrusion axis is perpendicular to the longitudinal axis of the article. The fuel element is segmented longitudinally and includes a burning segment at one end, a base segment at the opposite end, and an isolation segment between the burning and base segments. A metal cartridge is radially spaced from the longitudinal outer periphery of the burning segment of the fuel element. A retaining member grasps the base segment of the fuel element and holds the fuel element securely in place within the article.
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: March 31, 1992
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Jack F. Clearman, Joseph J. Chiou, Darrell D. Williams, William J. Casey, Thomas L. Gentry, William C. Squires
  • Patent number: 5082008
    Abstract: A smoking article includes a generally cylindrically shaped fuel column with a corrugated-shaped channel formed longitudinally through the fuel column and concentric therewith. A flavor releasing material coats the corrugated wall of the channel and the flavor material is aerosolized by the heat generated by the burning of the fuel column when it is ignited. A filter rod is coaxially located at one end of the fuel column.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: January 21, 1992
    Inventor: Robert R. Johnson
  • Patent number: 5050621
    Abstract: There is provided a smoking article comprising a heating unit, aerosol generation section in flow communication at a first end thereof with said heating unit, nicotine source in flow communication at a first end thereof with the heating unit, a mixing space with which said aerosol generation section and nicotine source means are in flow communication at or via respective second ends thereof, and a velocity accelerating orifice in flow communication with the mixing space.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: September 24, 1991
    Assignee: British-American Tobacco Company Limited
    Inventors: David E. Creighton, Colin C. Grieg
  • Patent number: 5027836
    Abstract: The present invention preferably relates to an insulated smoking article which is capable of producing substantial quantities of smoke, both initially and over the useful life of the product, without significant thermal degradation of the aerosol former and without the presence of substantial pyrolysis or incomplete combustion products or sidestream smoke. Thus, the article of the present invention is able to provide the user with the sensations and benefits of cigarette smoking without burning tobacco. In addition, the article may be made virtually ashless so that the user does not have to remove any ash during use.Preferred embodiments of the present smoking article comprise a short i.e.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: July 2, 1991
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Michael D. Shannon, Chandra K. Banerjee, Ernest G. Farrier, Andrew J. Sensabaugh, Jr.
  • Patent number: 4989619
    Abstract: The present invention preferably relates to a smoking article which is capable of producing substantial quantities of aerosol, both initially and over the useful life of the product, without significant thermal degradation of the aerosol former and without the presence of substantial pyrolysis or incomplete combustion products or sidestream aerosol.The article of the present invention is able to provide the user with the sensations and benefits of cigarette smoking without the substantial combustion products produced by burning tobacco in a conventional cigarette. In addition, the article may be made virtually ashless so that the user does not have to remove any ash during use.Preferred embodiments of the present smoking article comprise a short combustible carbonaceous fuel element, a heat stable, preferably particulate alumina, substrate bearing an aerosol forming substance, an efficient insulating means, and a relatively long mouthend piece.
    Type: Grant
    Filed: December 9, 1986
    Date of Patent: February 5, 1991
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Jack F. Clearman, James L. Resce, Ernest G. Farrier, Alan B. Norman, Olivia P. Furin, William C. Squires
  • Patent number: 4969476
    Abstract: An elongate smoking article for releasing an aerosol into the mouth of a smoker comprises, a fuel rod having a light-up end adapted to be lit by a smoker; a tube extending from the fuel rod to a mouth end of the article thereby defining a condensation chamber between the fuel rod and the mouth end of the article; ventilation means to permit the passage of ventilating air from the light-up end of the fuel rod to the condensation chamber, and a porous ceramic cylindrical element impregnated with an aerosol precursor surrounding the fuel rod and in intimate contact with at least a portion thereof. A permeable fire-proof sheath surrounds the ceramic element, the sheath being adapted to provide physical integrity of the whole assembly, to allow the inward diffusion of air to maintain and propagate combustion of the fuel rod and to allow outward diffusion of combustion products.
    Type: Grant
    Filed: September 16, 1987
    Date of Patent: November 13, 1990
    Assignee: Imperial Tobacco Limited
    Inventors: Christopher R. Bale, Beresford R. Gill, Brian C. Chard, Stephen J. Garrett
  • Patent number: 4955399
    Abstract: A cigarette provides tobacco flavor by heating tobacco, but not burning tobacco or any other material. A heat source which includes a metal oxide (e.g., calcium oxide), an anhydrous metal sulfate (e.g., magnesium sulfate), an inorganic salt and a sugar, generates heat upon contact of water therewith. The heat produced by the heat source heats tobacco in a heat exchange relationship therewith. Flavors volatilize from the tobacco and are drawn into the mouth of the user of the cigarette. Typical heat sources heat the tobacco to a temperature within 70.degree. C. to 200.degree. C. for 4 to 8 minutes.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: September 11, 1990
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Dennis L. Potter, Mark L. Raker, Henry T. Ridings, Andrew J. Sensabaugh, Jr., Amos E. Westmoreland, Woods, Donna K., Chandra K. Banerjee
  • Patent number: 4947875
    Abstract: Flavor delivery articles employ an electrical resistance heating element and an electrical power source to provide a flavored aerosol. The articles advantageously comprise a disposable portion and a reusable controller. The disposable portion normally includes a flavor substance and an air permeable resistance heating element having a surface area greater than 1 m.sup.2 /g, which usually carries an aerosol forming substance. The reusable controller normally includes a puff-actuated current actuation means, a time-based current regulating means to control the temperature of the heating element, and a battery power supply.
    Type: Grant
    Filed: September 8, 1988
    Date of Patent: August 14, 1990
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Johnny L. Brooks, Donald L. Roberts, Jerry S. Simmons
  • Patent number: 4934384
    Abstract: A tobacco pipe combustion maintenance accessory for maintaining continuous burning of tobacco in the bowl of a pipe once the tobacco is initially ignited. The device includes a generally flat body having a curvilinear concave reflective surface on one side of the body. When the body is held above the pipe bowl, the curvilinear surface, properly positioned, reflects heat and light waves emitting from the portion of burning tobacco back at the tobacco in focused or concentrated form to ignite the unlit portions of the tobacco at the point where the reflective rays focus. By manipulation of the device in very close proximity above the rim of the pipe bowl so that the rays are reflected downardly into the tobacco, the collected rays at their point of focus maintain the tobacco burning. The curvilinear surface is preferably a spherical segment and may also be structured similar to a fresnal lens having reflective concentric surfaces to achieve relative flatness and a shorter focal length.
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: June 19, 1990
    Inventor: Fred Graham
  • Patent number: 4848374
    Abstract: A smoking device for releasing an aerosol into the mouth of a smoker comprises in combination, a chamber into which a mixture of air and a liquid aerosol precursor is introduced, a heat source surrounding the chamber, a first duct providing communication between the chamber and a smoker's mouth, whereby the contents of the chamber may be drawn into the smoker's mouth, a container for the aerosol precursor, a second duct means leading from the aerosol precursor container into the chamber whereby aerosol precursor may pass from said container into the chamber, and a third duct means providing communication between ambient air and the chamber whereby ambient air may be drawn into the chamber by the smoker, the arrangement being such that in operation liquid aerosol precursor entering the chamber is converted into a condensation aerosol.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: July 18, 1989
    Inventors: Brian C. Chard, Christopher R. Bale, Beresford R. Gill, David Herron, Stephen J. Garrett
  • Patent number: 4819665
    Abstract: An aerosol delivery article is capable of producing substantial quantities of smoke, both initially and over the useful lifetime of the product, without significant thermal degradation of the aerosol former and without the presence of substantial pyrolysis or incomplete combustion products or sidestream smoke. The article also delivers very low levels of carbon monoxide. The article is able of providing the user with the sensations and benefits of cigarette smoking without burning tobacco. The article includes a carbonaceous fuel element, an aerosol forming substance within a heat conductive container, an outer member surrounding the heat conductive container, and a mouthend piece. Upon draw on the mouthend piece air enters the peripheral region of the outer member and enters the heat conductive container. As the heat conductive container is in a heat exchange relationship with the fuel element, aerosol is thereby formed within the container and passed to the mouth of the user.
    Type: Grant
    Filed: January 23, 1987
    Date of Patent: April 11, 1989
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Donald L. Roberts, Carl C. Morrison, Johnny L. Brooks, Evon L. Crooks, Bradley J. Ingebrethsen
  • Patent number: 4774970
    Abstract: A smoker's appliance including a passageway upstream from the site of the tobacco, a passageway downstream thereof and means for elevating the upstream passageway's temperature to provide superheated area to the site of combustion. Downstream from the site of combustion, cooling occurs to precipitate and condense smoke fractions unwanted by the user.
    Type: Grant
    Filed: December 11, 1986
    Date of Patent: October 4, 1988
    Inventor: Douglas W. Bell
  • Patent number: 4773435
    Abstract: A device for a cigarette comprises many plate units with a cigarette holding hole that are connected with each other detachably. Inserting a cigarette into the hole of the device when lit and not puffed, side smoke stream from the burning point of the cigarette can be decreased so as not to affect the health of non-smoker persons.
    Type: Grant
    Filed: March 20, 1986
    Date of Patent: September 27, 1988
    Assignee: Dynic Corporation
    Inventors: Sakio Ikeda, Sadao Nakano, Toshiyuki Nishijima
  • Patent number: 4637407
    Abstract: A fire safe, environmentally protective cigarette holder for fully enveloping a lit cigarette and in which an internal power source maintains a flow of air to the lit portion and drives the exhaust smoke through a filter before it is vented to the atmosphere, thus filtering products of combustion which are not drawn in by the smoker. Additional filtering means which can include the cigarette itself can be utilized to filter the drawn smoke.
    Type: Grant
    Filed: February 28, 1985
    Date of Patent: January 20, 1987
    Assignee: Cangro Industries, Inc.
    Inventors: Mario Bonanno, George Zinonos, Constantin Trantzas
  • Patent number: 4596258
    Abstract: A smoking device is disclosed which allows the user to regulate the air he inhales to consist of pure tobacco smoke, pure air, pure air carrying volatile substances, or a mixture of tobacco smoke and air carrying volatile substances. This is accomplished by a smoking device having three air passages and means to selectively open and close these passages.
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: June 24, 1986
    Inventor: Pierre G. Steiner
  • Patent number: 4303083
    Abstract: A device for inhaling a mixture of air and vaporized volatile compounds, but without combustion or thermal decomposition of the volatile compounds or of other non-volatile organic matter, as is the case in ordinary smoking methods. The device is intended to be hand-held in a manner similar to that of an ordinary tobacco pipe. It can be used further to administer volatile medications, by route of the respiratory organs, to the bodily system of the user of the device. The device is intended to not achieve uncomfortable surface temperatures while at the same time it will be able to readily and rapidly evaporate compounds and mixtures of such compounds that can achieve a vapor pressure of one atmosphere at temperatures of less than 250.degree. C.
    Type: Grant
    Filed: October 10, 1980
    Date of Patent: December 1, 1981
    Inventor: Robert P. Burruss, Jr.
  • Patent number: 4275747
    Abstract: A smoking pipe having a metal air injection pin in the stem for conductively cooling the smoke and for introducing and mixing a controlled amount of air into the smoke stream proportional to the smoke stream velocity.
    Type: Grant
    Filed: August 30, 1979
    Date of Patent: June 30, 1981
    Inventor: William L. Miller
  • Patent number: 4190063
    Abstract: A smoker's pipe has a tobacco bowl for burning tobacco and a stem extending from the bowl. A control system produces a draft via a free flow of air through tobacco in the bowl whereby the tobacco burns freely and evaporates moisture in the tobacco and eliminates nicotine and tar to provide a milder smoke when the pipe is free from drawing and puffing by a smoker. The control system draws smoke from burning tobacco in the bowl through the stem to the smoker's mouth when the smoker draws or puffs.
    Type: Grant
    Filed: May 12, 1977
    Date of Patent: February 26, 1980
    Inventor: Denver R. Turner
  • Patent number: 4029109
    Abstract: A fluid-cooled smoking device includes a plurality of concentrically disposed tubular members which, depending upon the predetermined length of some of such members, and/or the provision of apertures therewithin, together define an elongated serpentine fluid flow path. An ash receptacle is defined within the upstream portion of the fluid flow path while the downstream portion of the flow path includes a liquid chamber, and in this manner, the smoke is air-cooled within the upstream portion of the flow path, ash deposits are segregated from the fluid flow prior to the same being further cooled within the water chamber, and consequently, the water chamber does not readily become contaminated.
    Type: Grant
    Filed: January 28, 1976
    Date of Patent: June 14, 1977
    Inventor: Richard W. Kahler
  • Patent number: 4020853
    Abstract: A smoking pipe which can be made of an artistically ornamented ceramic such as porcelain wherein means is provided for maintaining the outer wall at a sufficiently low temperature to permit comfortable handling by the smoker, there being spaced inner and outer bowls with provision for air circulation inwardly and upwardly between the bowls by convection, the convection flow not only serving as a cooling medium but also as an upward draft to assist in keeping the tobacco in a burning condition even while the smoker is not drawing air and smoke through the inner bowl and stem of the pipe. The inner bowl is removably held and sealed about its bottom by a novel sealing arrangement with a yielding heat resistant material such as silicone rubber which also supports part of the smoke passage means leading to the stem.
    Type: Grant
    Filed: October 2, 1975
    Date of Patent: May 3, 1977
    Inventor: Richard T. Nuttall