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:
Jun. 09, 1987
Filed:
Oct. 29, 1985
Nicholas E Butts, Ontario, CA;
Total Containment International, Inc., Ottawa, CA;
Abstract
An improved system for containment and detection of leakage of petroleum products from a subterranean storage tank is disclosed wherein the tank is provided with leak sensing means positioned at one end of the tank and the tank, together with the leak sensor, is enclosed in an impervious enclosure which is sealed about the tank to prevent actuation of the leak sensor except due to leakage from the tank. In one form the leak sensor may be housed in a perforated duct which extends through and is sealed within the enclosure permitting access to the leak sensor and the interior of the enclosure in the event that a leak is detected. A preferred material for use in making the enclosure is welded linear high density polyethylene (HDPE). In a second preferred form, a drainage mesh is positioned between the tank and the enclosure to ensure that any leakage from the tank drains to the leak sensor, and an absorbent strip is positioned beneath the tank and inside the enclosure to conduct leakage to the sensor.