Patents Assigned to Holgate Corporation
  • Plankton sample taking apparatus
    Patent number: 4646577
    Abstract: Plankton sample taking apparatus comprises a net coupled to a container having an open mouth separably fitted into a coupling member. The adjacent parts of the container and the coupling member are nested and configured to form a wedging seal therebetween.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: March 3, 1987
    Assignee: Holgate Corporation
    Inventor: William H. Phillips
  • Sampling apparatus
    Patent number: 4580454
    Abstract: Apparatus for sampling the fluid contents of a container comprising an elongate tube open at one end and having at its other end a cap provided with an air passage. Extending through the tube is an operating rod having a stopper at one end and a valve between its ends. A handle connected to the rod is operable to move the rod between positions in which the opposite ends of the tube are sealed by the stopper and the valve, respectively.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: April 8, 1986
    Assignee: Holgate Corporation
    Inventor: Edmund P. Deja
  • Plankton sample taking apparatus
    Patent number: 4558534
    Abstract: Plankton sample taking apparatus comprises a net coupled to a container having an open mouth separably fitted into a coupling member. The adjacent parts of the container and the coupling member are nested and configured to form a wedging seal therebetween.
    Type: Grant
    Filed: August 5, 1983
    Date of Patent: December 17, 1985
    Assignee: Holgate Corporation
    Inventor: William H. Phillips