Patents by Inventor Clarence E. Purdy

Clarence E. Purdy 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: 3961620
    Abstract: A cervical sampling apparatus includes a curved, hollow tube having an outside diameter of 5/8 inches, a working length of 31/2 inches, and a radius of curvature of 91/2 inches. A paddle-shaped sampling member is normally housed within one end of the tube, and a flexible shaft extends from the sampling member through the opposite end of the tube for selectively extending the sampling member to a sampling position outside the tube, for rotating the sampling member in the sampling position and for retracting the sampling member into the tube. Preferably, the sampling member is transparent and is separable from the shaft, so that a specimen taken on the sampling can be analyzed without removal therefrom.
    Type: Grant
    Filed: March 30, 1973
    Date of Patent: June 8, 1976
    Assignee: Research Industries Corporation
    Inventors: Colin B. Schack, Clarence E. Purdy