Patents by Inventor Lucian C. Ducret

Lucian C. Ducret 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).

  • Slide valve sealant system
    Patent number: 4022240
    Abstract: A sealant system for slide valves used in analysis apparatus and the like in which the slide valves are formed with a channel between the ports in the valve block and the outside thereof, with a sealant liquid supplied under a slight pressure to the channel to seal and lubricate the valve and prevent sticking even after long periods of idleness. The apparatus used to pressurize the sealant liquid is at the same time used to generate a flow of water through a heat exchanger used in the kinetic analysis apparatus.
    Type: Grant
    Filed: August 22, 1974
    Date of Patent: May 10, 1977
    Assignee: The Perkin-Elmer Corporation
    Inventors: Hamilton W. Marshall, Jr., Lucian C. Ducret, John G. Atwood
  • Sponge irrigation system for automatic analysis apparatus
    Patent number: 3981041
    Abstract: A sponge irrigation system for automatic analysis apparatus in which wiping sponges are used to wipe off the tips of pipettes, probes and so on to accurately control drops on the tips thereof, in which irrigation fluid for maintaining a clean irrigated sponge is sequentially provided to each of the sponges in the system with vacuum means used to sequentially draw from the sponges contaminated liquid, thereby assuring that each sponge is properly and equally irrigated.
    Type: Grant
    Filed: August 22, 1974
    Date of Patent: September 21, 1976
    Assignee: The Perkin-Elmer Corporation
    Inventors: John G. Atwood, Lucian C. Ducret