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. 20, 1988
Filed:
Jun. 07, 1985
Applicant:
Inventor:
Donald C Gates, Troy, MI (US);
Assignee:
Expertek, Inc., Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
73 407 ; 73 492 ;
Abstract
A method and device for testing for leaks in fuel tanks. The method requires a vacuum be drawn around the fuel tank while a test gas is injected into the tank. Any leaks in the tank will permit the test gas to be drawn into the vacuum chamber, the output of which is tested by a sensor sensitive to the test gas. The entire test is conducted assuring speed, accuracy and safety. The tank device contains a vacuum chamber which is molded directly upon the tank to be tested, thereby minimizing the size of the vacuum chamber. The device also contains a sealing system which is adjustable. An optional addition to the system is a method of localizing a leak that is detected.