Patents by Inventor Bertram Chaffee

Bertram Chaffee 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).

  • Electrical continuity and voltage testing device
    Patent number: 3962630
    Abstract: A circuit testing device comprisesA. multiple probes at least one of which is sized for insertion into a single electrical socket receptacle to test for the presence of voltage, and two of which are applicable to spaced conductive elements to test for electrical continuity therebetween externally of said device,B. detection means operatively connected with said probes and including indicator means to indicate the presence or absence of voltage when said one probe is inserted into said socket single receptacle, and to indicate the presence or absence of electrical continuity when said two probes are applied to said spaced conductive elements.
    Type: Grant
    Filed: October 31, 1974
    Date of Patent: June 8, 1976
    Assignee: Mono-Probe Corporation
    Inventor: Bertram Chaffee