Patents by Inventor Paul M. Diemert, executor

Paul M. Diemert, executor 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).

  • Spool valve assembly
    Patent number: 4270575
    Abstract: A spool valve for use with pressurized fluid to control components of a control system. The spool valve has two stable positions in one of which the spool is firmly held by pressurized fluid.
    Type: Grant
    Filed: March 23, 1979
    Date of Patent: June 2, 1981
    Assignee: Paul M. Diemert
    Inventors: Frank A. Reed, deceased, Paul M. Diemert, executor
  • Fluent material handling apparatus
    Patent number: 4176987
    Abstract: Apparatus for providing a continuous flow of fluent particulate material suspended in a gaseous stream from a bulk source. The pneumatically powered and controlled apparatus includes a material receiving chamber intermittently replenishing a second chamber operable to maintain a third or material dispensing chamber adequately charged at all times. The apparatus controls are responsive to the material level sensing means in the second chamber to initiate a recharging cycle when the material therein falls below a predetermined level.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: December 4, 1979
    Assignee: Paul M. Diemert
    Inventors: Frank A. Reed, deceased, by Paul M. Diemert, executor