The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 09, 2018
Filed:
May. 01, 2015
James T. Farrow, Grand Prairie, TX (US);
James T. Farrow, Grand Prairie, TX (US);
Other;
Abstract
The present application includes an assembly and method for a plunger tool configured to remove contaminants from a well bore. The assembly includes a hollowed body, a dart configured to selectively close off the passage of working fluid through the body, and a wear pad coupled to an exterior surface of the body to protect the body from corrosive wear. The assembly may further include a dart having a core member and wear coating. The dart is configured to be interchangeable within the body and without the need to disassembly the body. The wear coating compressing for insertion and being sheared off during removal the dart. The body includes an internal lip to prevent the undesired removal of the dart.