Patents by Inventor Darryl E. Hyink

Darryl E. Hyink 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).

  • Cabinet with electrical apparatus for use in teaching
    Patent number: 4332568
    Abstract: A modular teaching and demonstrating laboratory having a cabinet with electrical apparatus mounted on a hinged outside cover and has a number of compartments contained therein for the transport of electrical fixtures that are used in conjunction with the externally attached electrical apparatus. The external electrical apparatus provides a pre-assembled electrical circuit of boxes and connecting conduit that are used to teach and demonstrate electrical principles and operation.
    Type: Grant
    Filed: October 19, 1977
    Date of Patent: June 1, 1982
    Inventor: Darryl E. Hyink