Patents by Inventor Thomas Davy Sharples

Thomas Davy Sharples 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).

  • Liquid head control system
    Patent number: 4106671
    Abstract: An automatically controlled liquid dispensing system including a reagent dispenser adapted to function as an intermediate container for dispensing relatively small controlled volumes of liquid to an associated receiving system in a continuous "demand" mode, this dispenser being indirectly monitored to be automatically and continually replenished after liquid is withdrawn therefrom, using a simple photoelectric liquid level monitor system including a fail-safe overflow control arrangement.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: August 15, 1978
    Assignee: Beckman Instruments, Inc.
    Inventor: Thomas Davy Sharples
  • Vestibule valve reagent dispenser
    Patent number: 4029473
    Abstract: An arrangement for the controlled delivery of liquid reagent is shown wherein a reservoir vessel for storing the liquid in volume is coupled to replenish a "vestibule vessel" provided for intermediate storage of the liquid enroute to the delivery point and for pneumatic propulsion thereof, the liquid being pneumatically driven from reservoir to the vestibule through a unidirectional check valve.
    Type: Grant
    Filed: October 31, 1975
    Date of Patent: June 14, 1977
    Assignee: Beckman Instruments, Inc.
    Inventor: Thomas Davy Sharples