ROBERT THOMAS BASNETT
Engineers in Horse Shoe, NC
License number
Pennsylvania PE011047L
Category
Engineers
Type
Professional Engineer
Address
Address
2
Horse Shoe, NC 28742
Pennsylvania
Pennsylvania
Professional information
Tractive Magnet With Asymmetric Permanent Air Gap
US Patent:
5243313, Sep 7, 1993
Filed:
Sep 16, 1992
Appl. No.:
7/945476
Inventors:
Robert T. Basnett - Horse Shoe NC
Assignee:
Westinghouse Electric Corp. - Pittsburgh PA
International Classification:
H01F 712, H01H 5060
US Classification:
335247
Abstract:
An E shaped stationary magnet/moveable armature combination for use in an electromagnetic contactor. The magnet has three legs; two outer legs and an inner leg. The armature can be a single, essentially rectangular bar or have three legs corresponding to the legs of the magnet. The moveable armature is caused to contact the magnet by a magnetic field created when electrical current is applied to a current carrying coil. An outer leg of the magnet and/or armature is arranged such that an air gap remains between an outer leg of the magnet and armature. The provision of an air gap in an outer leg reduces noise emitted from the electromagnet.