Patents by Inventor Howard V. Sears

Howard V. Sears 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).

  • Tiltable coupling
    Patent number: 3930545
    Abstract: A tiltable coupling has one end thereof connected to a down-hole drill and has the other end thereof connected to a section of drill rod. By using that tiltable coupling, it is possible to cause a down-hole drill to drill curved holes in subterranean formations. That tiltable coupling serves to connect the section of drill rod to the down-hole drill, and also serves as a conduit for the compressed air which must be supplied to that down-hole drill.One preferred embodiment of the tiltable coupling has a fulcrum at one side thereof and has a piston at the opposite side thereof; and that piston will be left inactive whenever a straight section of the hole is to be drilled, but that piston will be actuated whenever a curved section of that hole is to be drilled.
    Type: Grant
    Filed: November 29, 1973
    Date of Patent: January 6, 1976
    Assignee: St. Joe Minerals Corporation
    Inventor: Howard V. Sears