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:
Apr. 11, 2017
Filed:
May. 09, 2014
Applicant:
Premier Coil Solutions, Inc., Waller, TX (US);
Inventor:
Do Seo Park, Houston, TX (US);
Assignee:
Premier Coil Solutions, Inc., Waller, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/22 (2006.01); F16H 7/08 (2006.01); B65G 23/44 (2006.01); F16H 7/12 (2006.01); G01M 13/02 (2006.01);
U.S. Cl.
CPC ...
E21B 19/22 (2013.01); B65G 23/44 (2013.01); F16H 7/1263 (2013.01); G01M 13/023 (2013.01);
Abstract
An injector head unit includes one or more drive chains revolving within a common plane mounted on an upper drive sprocket and a lower drive sprocket, wherein at least one of the upper and lower drive sprockets are configured to move vertically to tension the drive chains, and at least one fixed reference point proximate to at least one of the upper and lower drive sprockets, wherein relative positioning of one of the movable upper and lower drive sprockets with the fixed reference point indicates to a user an amount of elongation of the drive chains after a certain period of time.