Patents by Inventor Clarence Hall

Clarence Hall 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).

  • Fish tape leader
    Patent number: 10797474
    Abstract: A fish tape leader comprises a leader body extending along a longitudinal axis between a first end and a second end. A frustoconical cap is at the first end. A tail portion extends from the frustoconical cap to the second end. The fish tape leader further comprises an attachment portion configured to secure the leader body to a fish tape.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: October 6, 2020
    Inventor: Clarence Hall
  • Seal section oil seal for submersible pump assembly
    Publication number: 20070140876
    Abstract: A seal section for location between a submersible rotary pump and motor has a primary mechanical seal and a secondary oil seal at the pump end of the seal section. The mechanical seal has rigid seal faces that slide in engagement with each other. The secondary seal has an inner portion that seals against the shaft of the seal section and an outer portion that seals against the housing. The seal section has a pressure equalizing device for equalizing pressure of motor lubricant with well bore pressure.
    Type: Application
    Filed: December 20, 2005
    Publication date: June 21, 2007
    Inventors: Larry Parmeter, Clarence Hall
  • Fish tape leader
    Patent number: D726516
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: April 14, 2015
    Inventor: Clarence Hall