Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent
1977-01-12
1979-01-16
Broome, Harold
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
335230, H01F 708
Patent
active
041351380
ABSTRACT:
A rotary solenoid comprises a housing, a rotor rotatably mounted in the housing, the rotor and the housing being comprised of a magnetically permeable material, and a solenoid coil mounted in the housing about the longitudinal axis thereof. The housing has at least a first pole piece portion therein with the rotor further comprising at least a first permanent magnet means mounted therein for simultaneous rotation therewith. The first permanent magnet means has first and second null positions with respect to the first pole piece and is mounted in the plane of the first pole piece for rotation about the longitudinal axis and provides a reverse magnetic flux in the housing and rotor magnetically permeable material. The solenoid coil has an energized state and a deenergized state with the rotor rotating a predetermined angular amount about the longitudinal axis from an initial position in response to a predetermined potential applied to the coil in the energized state. The first permanent magnet means has a pair of opposed sides substantially normal to the pole piece when adjacent thereto with one of the sides having an associated flux concentration which may differ from an associated flux concentration at the other opposed side of the permanent magnet means whereby the return torque curve of the solenoid may be varied.
REFERENCES:
patent: 2966106 (1960-12-01), Schackert
patent: 3229711 (1966-01-01), Daugherty
patent: 3311859 (1967-03-01), Bieger et al.
patent: 3636557 (1972-01-01), Watkins
patent: 3694782 (1972-09-01), Ray
Broome Harold
McClintock Manufacturing Corporation
LandOfFree
Rotary solenoid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary solenoid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary solenoid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-653502