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:
Nov. 25, 1986
Filed:
Feb. 11, 1985
Yi M Chang, Woodland Hills, CA (US);
James R Fenwick, Chatsworth, CA (US);
Abstract
Devices for protecting an edge weld of a thin metal bladder, which is positioned within a rigid walled tank, against a cavitation-induced collapse where the configuration of the interior surface of the bladder at the edge weld is in the structural form of a cavity which is horn-like in shape. One such device is a backing made of hard and ductile material which is interposed between and is in contact with the exterior surface of the bladder and the interior surface of the rigid walled tank at a location adjacent to the edge weld of the bladder. Another is a T-shaped ring disposed internal of the bladder, with the normally vertical leg of the T-shaped ring inserted into the horn-like cavity, and with the normally horizontal leg of the T-shaped ring positioned across the cavity ad in contact with the interior surface of the bladder at a location adjacent to the cavity. Even further, a hard material is fixedly positioned in the horn-like shaped cavity, thereby filling the cavity. Finally, a portion of the bladder is formed with a void at the innermost terminus of the edge weld, and a passageway interconnects the void and the liquid in the bladder.