Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1983-05-06
1984-05-08
Budd, Mark O.
Wave transmission lines and networks
Plural channel systems
Having branched circuits
310 36, 310156, 335272, H01P 110, H02K 3300
Patent
active
044477937
ABSTRACT:
An actuator has a rotor with permanently magnetized North and South poles. A housing supports three pole members having respective coils and pole pieces. The first pole piece is always a North pole but the coils on the second and third pole pieces are arranged such that each can be of either polarity with the other simultaneously being of the opposite polarity. The rotor therefore has two stable positions, one when the second pole piece is a North pole and the third pole piece is a South pole and the other being 120.degree. from this position in the clockwise direction (when the second pole piece is a South pole and the third pole piece is a North pole). The rotor movement may however be stopped 15.degree. short of each such position by mechanical detents, so as to limit the maximum angular movement to 90.degree.. The actuator may be used to drive a switchable microwave coupling arrangement.
REFERENCES:
patent: 2836773 (1958-05-01), Skrobisch
patent: 2895095 (1959-07-01), Guyton
patent: 2960643 (1960-11-01), Boyd
patent: 3419827 (1968-12-01), Webb
patent: 3959672 (1976-05-01), Walker et al.
patent: 4242652 (1980-12-01), Shishido et al.
patent: 4275371 (1981-06-01), Vogel
patent: 4287457 (1981-09-01), Takemura
patent: 4370631 (1983-01-01), Gerber et al.
Budd Mark O.
Racal-Mesl Microwave Limited
LandOfFree
Rotary actuators 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 actuators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary actuators will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1605431