Patents by Inventor Melvin R. Kahl

Melvin R. Kahl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Device for reduction of flatulence
    Patent number: 6221004
    Abstract: A device to reduce flatulence includes a shaft with at least one axial groove in its outer surface. The shaft is enlarged and rounded at the insertion end. This enlarged end is inserted beyond the sphincter muscle. The muscle then closes in on shaft itself, but the grooves provides a path for the continual relief of gas pressure.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: April 24, 2001
    Inventor: Melvin R. Kahl
  • Cleaning of high-voltage electrodes in an electrostatic precipitator
    Patent number: 4305736
    Abstract: An impact device (15) applies hammer-like blows, or impact forces, to a metallic support frame (13) from which high-voltage electrodes (10) are suspended in an electrostatic precipitator in order to dislodge accumulated particulates from high-voltage electrodes (10). The impact device (15) is electrically isolated by an insulator (19) from metallic components of the precipitator other than the support frame (13) and components electrically connected to the support frame (13). The insulator (19) has a bore (18) that accommodates movement of the impact device (15) from a withdrawn position away from the support frame (13) to an impact position in contact with the support frame (13) upon energization and de-energization of a solenoid (17). The insulator (19) remains unstressed as the impact device (15) contacts the support frame (13).
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: December 15, 1981
    Assignee: General Electric Co.
    Inventors: Melvin R. Kahl, Peter C. Gelfand
  • Mounting for high-voltage electrode support frame in an electrostatic precipitator
    Patent number: 4294591
    Abstract: A mounting assembly (12) for suspending an electrically conductive support frame for high-voltage electrodes (10) in an electrostatic precipitator comprises an electrical insulator (20) secured to a roof portion (13) of the precipitator and a fastening means for securing the support frame to the insulator (20). The insulator (20) has a bore therethrough, and is positioned circumjacent an aperture in the roof portion (13). The fastening means includes a rod (23), the lower end of which is attached to a horizontal member (11) of the support frame and the upper end of which extends through the bore of the insulator (20). The upper end of the rod (23) is secured to an annular member (25), which bears against a top portion of the insulator (20) to support the weight of the support frame and of the high-voltage electrodes (10) attached thereto.
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: October 13, 1981
    Assignee: Envirotech Corporation
    Inventor: Melvin R. Kahl
  • Bottom-powered electrostatic precipitator
    Patent number: 4290787
    Abstract: A high-voltage electrostatic precipitator is powered by a transformer supported below the high-voltage electrodes. A lead-in conductor extends from the transformer to the electrodes through a screen-covered aperture in the precipitator housing. Purging gas is directed through the aperture to prevent accumulation of particulates on the lead-in conductor.
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: September 22, 1981
    Assignee: Envirotech Corporation
    Inventor: Melvin R. Kahl