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:
May. 28, 1991
Filed:
May. 26, 1989
Christopher G Ziu, Charlestown, MA (US);
Asahi/America, Inc., Medford, MA (US);
Abstract
A double-containment pipe assembly is provided with an inner carrier pipe, an outer containment pipe and supports for maintaining concentrically therebetween. The supports may define resilient support clips of unitary construction. Each resilient support clip includes a mounting portion defining a section of a cylinder from which a plurality of support legs extend. One end of each support leg may be tapered to facilitate insertion into the containment pipe. One end of the support clip may also include a reinforcement flange extending partly thereabout to prevent overstress related damage to the support clip. The support clips may alternatively define unitarily molded planar structures having a circular inner support surface and a plurality of spaced apart outer support surfaces defining arcs of a circle concentric with the inner support surface. The outer support surfaces preferably are separated by inwardly formed passages to permit the passage of a sensor wire in the annular space between the carrier and containment pipes.