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:
Sep. 21, 1993
Filed:
Sep. 09, 1991
Applicant:
Inventors:
Victor Chang, S. Antonio de los Altos, VE;
Noel Moreno, Carrizales, VE;
Cesar Alvarez, Caracas, VE;
Gianbattista Urbani, Valencia, VE;
Assignee:
Intevep, S.A., Caracas, VE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ; G01M / ;
U.S. Cl.
CPC ...
73 40 ; 166 84 ; 277-2 ;
Abstract
A method and apparatus for sensing unacceptable oil leaks from a stuffing box in a walking beam pumping system includes a container for receiving leakage from the stuffing box which is divided by a weir into a first compartment and a second compartment wherein the first compartment is provided with an adjustable outlet for setting the acceptable level of stuffing box leakage such that when the acceptable level is exceeded leakage into the second compartment occurs and is sensed by an appropriate sensor (28).