Patents by Inventor Carl Fredrick Puthoff

Carl Fredrick Puthoff 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).

  • Fluid sampling device
    Patent number: 4004463
    Abstract: A liquid sampling device which may be lowered by a cord into a pool of fluid to sample the fluid at a particular depth includes a housing for holding a sample bottle to be filled with fluid. A remotely operable valve means prevents the sample bottle from being filled until the cord is abruptly jerked. After the bottle is filled, an automatically closing valve means seals the bottle and prevents contamination of the fluid sample by fluid at other levels as the sampling device is raised from the pool of fluid.
    Type: Grant
    Filed: January 26, 1976
    Date of Patent: January 25, 1977
    Assignee: Fluid Kinetics, Inc.
    Inventors: Carl Fredrick Puthoff, James John Gardner