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:
Jul. 07, 1981
Filed:
Apr. 20, 1979
Vitaly I Koshman, Donetsk, SU;
Vladimir F Petrichenko, Donetsk, SU;
Pavel V Kamshitsky, Donetsk, SU;
Other;
Abstract
An electric circuit switching device comprises a group of closing contact pairs and a group of breaking contact pairs, each group having stationary contacts arranged circumferentially on an insulating panel, and a switching element; a unit for rotating the switching elements; and an electromagnetic drive providing translatory motion of the switching elements while closing and breaking the contact pairs. The unit for rotating the switching elements is a rotary electromechanical drive having a means for setting the angle of rotation of its output shaft depending on the position of the contacts to be switched on the insulating panel. The electromagnetic drive has two electromagnets, the first of which provides translatory motion of the switching element of the group of the closing contact pairs, and the second electromagnet providing translatory motion of the switching element of the group of the breaking contact pairs. Each electromagnet has a hollow core supporting a winding and embracing the output shaft of the rotary electromechanical drive, and an armature having a recoil spring rigidly connected to a respective switching element, electrically insulated from the switching element and mounted for movement along the output shaft. The group of the breaking contact pairs, apart from the stationary contacts, have spring-loaded contacts, each forming with one of the stationary contacts of said group a contact pair and being actuated by the switching element while breaking the contact pairs of said group.