Stem Patents (Class 131/245)
  • Patent number: 11950331
    Abstract: There is provided a cleaning tool configured for cleaning an aerosol-generating device including a heating chamber and a heating element disposed in the heating chamber, the cleaning tool including: multiple prongs configured to be inserted into the heating chamber of the aerosol-generating device and to clean at least the heating element; and an actuating element configured to move the multiple prongs between a first position and a second position, wherein the multiple prongs are expanded towards inner sidewalls of the heating chamber in the first position and contracted towards the heating element in the second position.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: April 2, 2024
    Assignee: Philip Morris Products S.A.
    Inventor: Tony Reevell
  • Patent number: 11576425
    Abstract: A cigarette assembly machine that accepts loose shredded plant material (“SPM”) and cigarette blanks that include a filter and an empty SPM holding portion and produces cigarettes. The machine has an SPM slug forming mechanism, adapted to accept loose SPM and form it into a slug of SPM in the shape of the SPM holding portion and a cigarette blank accepting and holding mechanism, adapted to hold the cigarette blank. Further, a shaft and a two-stroke shaft moving assembly is adapted to push the SPM slug into the holding portion. Finally, the shaft includes a solid distal push tip, an intermediate brush, and a proximal shaft, whereby as the shaft is moved through its strokes, the intermediate brush scrubs the SPM slug forming mechanism.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: February 14, 2023
    Inventors: Sajid Munawar, Rashad Munawar
  • Patent number: 10399110
    Abstract: A rust inhibition system in which a rust inhibitor liquid is applied to a wand, which is then inserted into a cavity. The wand serves as a reservoir to provide the inhibitor liquid in areas susceptible to corrosion. A sleeve can be included to cause the inhibitor liquid to secrete from the wand.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: September 3, 2019
    Inventor: Rodney Good
  • Patent number: 7658197
    Abstract: A smoking pipe having a cleaning valve includes a pipe body with an internal bore. A combustion chamber is communicably connected with the bore. A cleaning valve is mounted adjustably within the bore. The valve includes a longitudinal channel and the valve is alternatable between a first position wherein the channel is communicably interconnects an orifice in the mouthpiece of the pipe and the combustion chamber and a second position wherein the channel is fully exposed so that it may be quickly and completely cleaned.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: February 9, 2010
    Inventor: Alvaro Villagomez
  • Patent number: 4635650
    Abstract: The invention is a device for cleaning tobacco residues from smoking pipes, comprising a generally hairpin-shaped piece of wire having one leg coiled to clean the bowl of a pipe and the other leg kinked to clean the stem of a pipe.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: January 13, 1987
    Inventor: Gilbert W. Lindemann
  • Patent number: 4550739
    Abstract: A pipe tamping tool 10 includes tamping member 26 integrally formed with cleaning member 28 capable of cleaning the interior of the bowl of the pipe. Medially formed on the cleaning member 28 is a reacting member 30 for retaining the pipe bowl in an upright position when placed upon a horizontal surface. The retaining member 30 is a substantially arcuate member which envelopes the stem of the pipe and which has outwardly flaired free edges or legs or flanges which radiate outwardly from the arcuate portion thereof. A clip 42 for attaching the device to an article of clothing, is integrally formed as part of the device. A flocking or similar material 40 can be adhered to the interior of the arcuate member 36 to prevent scratching of the pipe stem.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: November 5, 1985
    Assignee: G.E.M.M. Manufacturing
    Inventor: George H. Henderson
  • Patent number: 4210160
    Abstract: An anti-pollution combustion device has a bowl in the interior of which is located, above the connection between the bowl and stem, a perforated metal disc so that the tobacco rests on the same. The outside of the bowl is formed with circumferentially extending cooling ribs. The inside of the bowl is lined with a material which prevents the wood of the bowl from charring. In the smoke passage of the stem is incorporated a filter which can be changed when it is saturated with contaminants. Near the rear end of the stem there is provided a trap with a reservoir in which liquid is trapped and accumulated so that from time to time it can be discharged from the reservoir. The rear end of the stem is provided with a mouthpiece having an annular member projecting transversely of the elongation of the stem and large enough to securely retain the mouthpiece between the teeth of a user, even if the user should have false teeth.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: July 1, 1980
    Inventor: Anton E. Wunsche
  • Patent number: 4188959
    Abstract: A bendable resilient, substantially rigid pipe cleaner which is constructed of an elongated member having a fore end and an aft end located on either side of the handle section. Both the fore end and the aft end are tapered to decrease in width toward the outer end of each end. The pipe cleaner is formed in a substantially S-shape with each end of the device being essentially similar.
    Type: Grant
    Filed: September 30, 1977
    Date of Patent: February 19, 1980
    Inventor: Edward J. Karalius