Patents by Inventor Melvin S. Henriksen

Melvin S. Henriksen 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).

  • Rotary sheer valve with wash and purge station
    Patent number: 4540015
    Abstract: A shear valve obtaining selective fluidic communication between fluid ports formed in a first member and fluid ports formed in a second member comprises a first seal with means for providing a fluidic seal between aligned ports and which separates the first and second members to form a passage, and a second sealing means to obtain a fluidic seal between the first and second members and enclose the passage. A fluid port is provided to introduce wash solution into the passage formed between the first and second members and a drain port is provided to remove the wash solution introduced between the first and second members, so that a wash and purge operation may be performed to cleanse the sealing surfaces of the valve.
    Type: Grant
    Filed: June 30, 1983
    Date of Patent: September 10, 1985
    Assignee: Beckman Instruments, Inc.
    Inventors: Melvin S. Henriksen, Richard C. Meyer
  • Assay module magazine
    Patent number: D335348
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: May 4, 1993
    Assignee: PB Diagnostic Systems Inc.
    Inventors: Dina Frenkel, Melvin S. Henriksen, Ernest W. Long, Robert C. MacIndoe, Jr.