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:
Aug. 29, 2000
Filed:
Apr. 21, 1998
Applicant:
Inventors:
John Phillip DuPont, Waukesha, WI (US);
Todd Kim Knapp, Waukesha, WI (US);
Assignee:
Cooper Industries, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
218 90 ; 218154 ;
Abstract
An interrupt assembly for a primary circuit breaker of a distribution transformer includes an elongated housing that is divided into separate chambers for holding insulating fluid that extinguish an arc generated when a high-voltage electrical path between two breaker contacts is broken. The elongated housing includes openings that allow for the rapid exit of the expanding gases generated as a result of the arc. Consequently, the separately held insulating fluid in each chamber presents a strong dielectric property to the arc, causing it to extinguish rapidly.