Patents by Inventor David C. Bohley

David C. Bohley 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).

  • Self-orienting pipe inspection apparatus and method
    Patent number: 5287133
    Abstract: A device for photographing the interior of pipelines is disclosed. The device deposited at the pipeline's inlet and is drawn through the pipeline by fluid flow. The combination of a ballast device and a floatation device and a rudder maintain the device in proper orientation. The device is untethered and is powered by a battery carried in the vessel. A control circuit permits a time delay before operating the camera and lights.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: February 15, 1994
    Assignee: Bohley's Diving Service, Inc.
    Inventor: David C. Bohley