Patents by Inventor Loran Vinson Melnick

Loran Vinson Melnick 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).

  • Apparatus for drawing, measuring and discharging proportional amounts of fluid
    Patent number: 3963148
    Abstract: An automatic diluting device draws and dispenses a volume of sample along with a volume of diluent so as to maintain a precise ratio between the volume of sample and the volume of diluent. The device includes a diluent chamber having a plunger therein which is reciprocable between a first and second position for displacing a first volume therein when moved, and at least a first sample chamber having a plunger therein reciprocable between a first and second position for displacing a second volume therein when moved. The first and second volumes are arranged to have a fixed precise ratio with respect to one another for any equal distance moved by said first and second plungers in their chambers. A coupling device couples the plungers together for simultaneously reciprocally moving the plungers an equal distance in the chambers between first and second positions.
    Type: Grant
    Filed: March 12, 1975
    Date of Patent: June 15, 1976
    Assignee: Coulter Electronics, Inc.
    Inventors: Oscar Proni, Loran Vinson Melnick, William Taylor Henderson