Patents by Inventor Alan W. Dingfelder

Alan W. Dingfelder 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).

  • Patent number: 5882383
    Abstract: Apparatus for drying flowing gas includes a generally cylindrical vessel having a gas inlet and a gas outlet, two perforated plates of different metals in contact with each other transverse the interior of the vessel, and a third perforated plate downstream from the two mutually contacting plates.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: March 16, 1999
    Inventor: Alan W. Dingfelder
  • Patent number: 5753013
    Abstract: Apparatus for drying flowing gas includes a generally cylindrical vessel having a gas inlet and a gas outlet, two perforated plates of different metals in contact with each other transverse the interior of the vessel, and a third perforated plate downstream from the two mutually contacting plates.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: May 19, 1998
    Inventor: Alan W. Dingfelder
  • Patent number: 5735937
    Abstract: A gas contaminant separator includes a pressure tube and a concentric and axially aligned down pipe mounted within the pressure tube. The pressure tube and down pipe define an annular space having a helical rib extending therein. A plurality of magnets are mounted to the down pipe above the helical rib adjacent a perforated plate. A spiral induction plate is mounted within the down pipe for imparting rotation on a gas stream after the gas stream moves through the magnetic field created by the magnets, and through the perforated plate. A gas inlet admits gas into the annular space, and a gas outlet removes gas from the down pipe after it has passed through the annular space, across the magnetic field, through the perforated plate, and through the spiral induction plate mounted in the down pipe.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: April 7, 1998
    Inventor: Alan W. Dingfelder
  • Patent number: 5554209
    Abstract: A gas contaminant separator includes a pressure tube and a concentric and axially aligned down pipe mounted within the pressure tube. The pressure tube and down pipe define an annular space having a helical rib extending therein. A plurality of magnets are mounted to the down pipe above the helical rib adjacent a perforated plate. A spiral induction plate is mounted within the down pipe for imparting rotation on a gas stream after the gas stream moves through the magnetic field created by the magnets, and through the perforated plate. A gas inlet admits gas into the annular space, and a gas outlet removes gas from the down pipe after it has passed through the annular space, across the magnetic field, through the perforated plate, and through the spiral induction plate mounted in the down pipe.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: September 10, 1996
    Inventor: Alan W. Dingfelder
  • Patent number: 4502343
    Abstract: A pump jack having a resiliently mounted speed reducer. The pump jack comprises a frame, a sampson post, and a walking beam pivotally mounted on the sampson post. Crank shaft bearings are securely mounted on the sampson post. A speed reducer is resiliently mounted to the sampson post and coupled to the crank shaft extending through the crank shaft bearings. Thus, non-torsional forces are transferred to the sampson post, reducing wear on the speed reducer and obviating the necessity of a speed reducer of large size. This results in decreased power necessary to run the pump jack. This also allows the use of a single pitman rod configuration, which is subject to less wear than previous double pitman configurations.
    Type: Grant
    Filed: April 2, 1981
    Date of Patent: March 5, 1985
    Inventor: Alan W. Dingfelder