Patents by Inventor Henry M. Pollak

Henry M. Pollak 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).

  • Surface mounted power tool
    Patent number: 4664165
    Abstract: A power tool provided with a rotating blade wheel having skewed axial vanes which follow the cutting blades during rotation to create an air flow which is parallel to the axis of rotation. A shroud adjacent to the blade wheel which deflects the debris created by the cutting blade away from the radial movement of the blade wheel. The debris is exhausted through the side of the power tool housing such that the power tool may be mounted directly onto a continuous flat or level surface of a work bench.
    Type: Grant
    Filed: February 6, 1986
    Date of Patent: May 12, 1987
    Assignee: American Machine and Tool Company, Inc.
    Inventors: Henry M. Pollak, John W. Mauger
  • Self-priming centrifugal pump
    Patent number: 4355950
    Abstract: A centrifugal pump having a discharge at its upper end is self-primed under the combined effect of gravity and suction. The suction is created by a discontinuity of flow in the pumping chamber at a recirculation passage. The passage is sufficiently large so that it deaerates priming liquid while providing sufficient liquid to prevent a short circuit of gas from the outlet to the inlet.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: October 26, 1982
    Inventor: Henry M. Pollak
  • Guard for belt pulley
    Patent number: 4114473
    Abstract: A guard is provided for installation within an endless belt extending around a pair of pulleys for preventing danger associated with the nip between the belt and pulleys without interferring with freedom of access to the belt.
    Type: Grant
    Filed: December 1, 1976
    Date of Patent: September 19, 1978
    Inventor: Henry M. Pollak
  • Combined jointer and planer
    Patent number: D299146
    Type: Grant
    Filed: February 6, 1986
    Date of Patent: December 27, 1988
    Assignee: American Machine and Tool Company, Inc.
    Inventors: Henry M. Pollak, John W. Mauger