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:
Oct. 18, 1983
Filed:
Sep. 12, 1980
Donald E Weston, Lansdale, PA (US);
Brown Boveri Electric Inc., Spring House, PA (US);
Abstract
An arc spinner interrupter is provided with a chamber above the coil which contains a piston of ferromagnetic material. The chamber communicates, through a channel through the center of the coil, with an arc extinguishing region. The arc extinguishing region contains the movable contact and cooperating arc runner disk of the arc interrupter. During arc interruption, the magnetic field produced by the coil causes the arc between the movable contact and arc runner to circulate in the usual manner in a relatively static gas-filled arc extinguishing volume. The magnetic field of the coil also produces an attractive force on the ferromagnetic puffer piston and causes compression of the gas-filled volume above the coil and causes the movement of cool gas through the channel into the arcing region. The movement of cool gas into the arcing region increases the density of the gas in the arcing region and cools the gas in the arcing region, thereby decreasing the possibility of a restrike and increasing the interrupting capacity of the device.