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:
Dec. 25, 1984
Filed:
Jul. 25, 1983
Applicant:
Inventor:
Thomas A Gilbertson, Moraga, CA (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417401 ; 166 685 ;
Abstract
An oil well pump driving unit which includes a hydraulic cylinder mounting arrangement which eliminates the use of a stuffing box by mounting the cylinder by way of a mounting arrangement on top of a pumping tee at the wellhead which includes a cylinder rod sealing arrangement separate from the one in the hydraulic cylinder to preclude leakage of well fluid around the cylinder rod.
Gilbertson, Thomas. (1984). Hydraulic pump driving unit for oil wells (U.S. Patent No. 4490097). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4490097
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile