Patents by Inventor Thurman V. Sharp

Thurman V. Sharp 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: 4372422
    Abstract: A device for escaping from elevated locations, particularly in an emergency, is provided. The device controls the travel of a weight, e.g., a human passenger, on an essentially 1:1 ratio of rope or cable length to the distance of travel. The invention can be employed for either vertical or horizontal travel. Further, this invention can be operated by a passenger or from a lower location such as the ground or any other place towards which the weight is to travel. The device contains at least one roller, preferably a plurality, around which the cable or rope is run. The roller is generally tapered from at least one side towards a middle location and grooved at the latter to facilitate proper operation, good braking ability, low heat generation during operation and braking, and easy release from a stationary position.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: February 8, 1983
    Inventor: Thurman V. Sharp