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. 18, 2000
Filed:
Oct. 14, 1998
LeMoyne Boyer, Lufkin, TX (US);
Robert Miler Jones, Diboll, TX (US);
Lufkin Industries, Inc., Lufkin, TX (US);
Abstract
An improved beam pumping unit for pumping fluids from a well having a foldable support structure to allow storage of the pumping unit in a low profile position. The beam pumping unit utilizes a walking beam pivoted on a central bearing, a drive means connected to one end of the walking beam to oscillate the walking beam and a horsehead at the other end of the walking beam for connection to the polished rod of the downhole pump. A foldable Samson post supports the central bearing of the walking beam. The foldable Samson post allows lowering of the pumping unit from a first, fixed standing position in which the walking beam is raised for normal pumping operation and a second, fixed lowered position for storage.