Patents by Inventor William H. Crandell

William H. Crandell 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).

  • Disposable/reusable dispenser for dispensing contaminatable and noncontaminatable liquids
    Patent number: 4548245
    Abstract: A fully disposable self-contained manifold-type multiple stroke dispenser having sufficient capacity for dispensing 96, microliter quantities of liquid without refill to accommodate a standard 96-well microtitration plate.
    Type: Grant
    Filed: March 4, 1983
    Date of Patent: October 22, 1985
    Assignee: Dynatech Laboratories Incorporated
    Inventors: William H. Crandell, John L. Moren, Paul Q. Ruona
  • Cryosurgical probe
    Patent number: 3951152
    Abstract: A small, self-contained, disposable cryosurgical probe has a pencil-like housing with a refrigerant-containing cartridge in the housing and a hollow tip projecting from the housing. A small diameter capillary tube has one end in the housing opposite the cartridge and its other end extending into the tip with the intervening length of the tube formed into a multi-turn coil. The refrigerant is conducted from the cartridge through the tube to the probe tip and the temperature of the refrigerant is stabilized so as to maintain a substantially uniform mass flow rate of refrigerant through the tube to the tip.
    Type: Grant
    Filed: February 14, 1975
    Date of Patent: April 20, 1976
    Assignee: Dynatech Corporation
    Inventors: William H. Crandell, Wayne F. Lisenbee, Keith E. Nelson