Patents by Inventor J. P. Barger

J. P. Barger 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).

  • Blood filming apparatus
    Patent number: 4108109
    Abstract: Apparatus for forming a film of blood or other body fluid sample on a microscope slide. The slide is surrounded by a member adapted to catch and immobilize excess blood thrown from the slide by centrifugal force. The member, which advantageously rotates with the slide while positioned in a waste-receiving mode, advantageously comprises a pocket filled with highly porous blood-receiving material and is adapted to be moved vertically out of the waste-receiving mode to facilitate positioning and removal of the slide from the apparatus.
    Type: Grant
    Filed: May 13, 1974
    Date of Patent: August 22, 1978
    Assignee: Dynatech Corporation
    Inventors: J. P. Barger, Joseph A. Holroyd
  • Cryosurgical probe tip
    Patent number: 4029102
    Abstract: The spherical welded tip end of a cryosurgical probe is prevented from separating and projecting from the remainder of the probe tip due to fluid pressure in the tip by a lanyard, one end of which is welded to the tip end and the other end of which is secured to a point on the main body of the probe away from the probe tip.
    Type: Grant
    Filed: September 9, 1975
    Date of Patent: June 14, 1977
    Assignee: Dynatech Corporation
    Inventor: J. P. Barger