Polarized Rotary Solenoid.

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Abstract:

A rotary solenoid providing opposite direction pivoting movement on opposite polarity d.c. energization. The solenoid has a pivoting shaft from which a permanent magnet armature having ends of opposite magnetic polarity extends transversely and oppositely. The armature is disposed between a pair of pole pieces each of which extends along the armature between its ends. The pole pieces are oppositely electromagnetically magnetized by a d.c. winding so that reversing the electrical polarity of the winding reverses the polarity of each pole piece and its attraction of repulsion of the armature ends. The pole pieces are opposite arms of a U-shaped ferromagnetic structure on which the winding is centrally wound, and the shaft is supported by a bearing in a nonferromagnetic bridge between the pole pieces. Patents. RH

Author(s):
Cooksey, George E.
Author Organization(s):
DEPARTMENT OF THE NAVY WASHINGTON DC
Descriptive Note:
Patent, filed 9 Feb 87, patented 5 Apr 88,
Supplementary Note:
Supersedes PAT-APPL-14 904-87.
Pagination:
0007

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Availability: This Government-owned Invention Available For U.s. Licensing And, Possibly, For Foreign Licensing. Copy Of Patent Available Commissioner Of Patents, Washington, Dc 20231. $1.50.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PAT-APPL-14 904, PATENT-4 736 175
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*ARMATURES, *FERROMAGNETIC MATERIALS, *MAGNETIC FIELDS, *PATENTS, *ROTATION, *SOLENOIDS, ELECTRICAL PROPERTIES, PERMANENT MAGNETS, POLARITY, POLARIZATION, WINDING
Field(s)/Group(s):
Electrical and Electronic Equipment, Electricity and Magnetism
Report Date:
1988 Apr 05