Patents by Inventor Doris B. Collier

Doris B. Collier 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: 4890386
    Abstract: A reciprocating knife is set forth for use by individuals without or diminished use of a second arm. The knife includes a projecting flange integrally formed outwardly of a forward edge of a handle wherein the flange is provided with a matrix of downwardly depending projections. A telescoping knife blade is nestable within an associated hollow handle and is provided with a slide reciprocatable within a groove of the handle to reciprocate the associated knife point. The flange and projections may thereby secure an item to be cut while the knife blade is reciprocated to effect cutting.
    Type: Grant
    Filed: August 10, 1988
    Date of Patent: January 2, 1990
    Inventor: Doris B. Collier