Binary capacitor

Details Binary capacitor Binary capacitor

1977-08-19

1979-10-30

Goldberg, E. A.

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

361292, 361300, H01G 700, H01G 514

Patent

active

041730321

ABSTRACT:
A binary capacitor consists of a piston having a metallized band on its periphery. The piston is movable between first and second positions within a cylinder which carries two spaced metallized bands. One of the positions of the piston defines a position of maximum capacitance, i.e. where the band on the piston overlaps both of the cylinder bands. The second position of the piston defines a position of minimum capacitance; i.e. where the piston band clears at least one of the cylinder bands. The piston is latched in its stable minimum and maximum states by fixed permanent magnets located at the ends of the piston in combination with soft iron slugs at the ends of the cylinder. The piston is moved by appropriately energizing electromagnetic coils wound over the soft iron slugs on the cylinder.

REFERENCES:
patent: 2561041 (1951-07-01), Arends
patent: 2562263 (1951-07-01), Ehrlich
patent: 2729746 (1956-01-01), Pan

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