Patents by Inventor Norma M. Crandall

Norma M. Crandall 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).

  • Patent number: 4399340
    Abstract: The invention is a trigger switch of the type having a pistol grip shaped housing (1) with a first trigger switch (10) mounted in the upward forward portion of the housing (1) and a second trigger switch (20) mounted immediately below said first trigger switch (10) and characterized by a trigger guard (30) which is pivotally mounted at the upward end thereof to said housing (1) so that the guard (30) may be moved from a first lower position that protects the second lower switch (20) from being operated to a second upper position that allows the second switch (20) to be operated and a member (60) fixedly mounted to the housing (1) adjacent to guard (30) and extending between the first and second positions of the guard (1) and including a boss (61) thereon that extends in the direction towards said guard (60) and is adapted to engage the guard (30) when the guard (30) is moved between the first and second positions.
    Type: Grant
    Filed: May 8, 1981
    Date of Patent: August 16, 1983
    Assignee: The Bendix Corporation
    Inventors: Norma M. Crandall, Raymond H. Doyle, Walter F. Kunkler