Patents by Inventor Derrick W. Bradshaw

Derrick W. Bradshaw 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).

  • Control system for pneumatically operated toilet
    Patent number: 10676906
    Abstract: A control system for a pneumatically operated toilet includes a valve arrangement and a controller. The valve arrangement includes a plurality of solenoid operated valves. The controller includes a microprocessor in signal communication with the plurality of solenoid operated valves, the controller configured to operate the valve arrangement to independently control operation of a water valve for selectively introducing water into a toilet bowl of the pneumatically operated toilet, operation of a flapper valve operating cylinder for opening and closing a waste opening of the toilet bowl, and pressurized air supply to a waste transfer chamber of the pneumatically operated toilet.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: June 9, 2020
    Inventors: Robert M. Herrin, Derrick W. Bradshaw