Patents by Inventor Daniel J. Carten

Daniel J. Carten 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).

  • Parallel-motion dual-diaphragm valve
    Patent number: 4867201
    Abstract: A valve (10) has a body (11) provided with two separate but parallel flow passages therethrough. A first diaphragm assembly (14) is held between a lower bonnet (12) and the body, and is movable toward and away from a seat (48). A second diaphragm assembly (15) is held between an upper bonnet (13) and the body. A follower (16) is arranged between the diaphragms. An actuator (20) is arranged to cause substantially parallel motion of the diaphragms in response to movement of the actuator.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: September 19, 1989
    Assignee: Harsco Corporation
    Inventor: Daniel J. Carten