Ted N Tilman from 14480 Wilder Ln, Grass Valley, CA 95945, Phone: 530-477-6229

High Direct And Alternating Current Switch
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US Patent:

42152534, Jul 29, 1980
Filed:

Dec 28, 1978
Appl. No.:

5/974061
Inventors:

Ted N. Tilman - San Jose CA
International Classification:

H01H 3538
US Classification:

200 82R
Abstract:

Presented is a high power switch for making, breaking and carrying high direct and alternating current circuits. The switch incorporates pairs of contacts that operate in sequence, one of the contact pairs being the first to "make" and the last to "break" and the other contact constituting a movable conductive bridge to carry the primary load through the switch structure.

High Current High Voltage Switch Structure With Conductive Piston
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US Patent:

39419576, Mar 2, 1976
Filed:

May 9, 1974
Appl. No.:

5/468564
Inventors:

Ted N. Tilman - San Jose CA
International Classification:

H01H 3538
US Classification:

200 82R
Abstract:

Presented is a switch structure having high current carrying capacity over a broad range of frequencies from DC to 50 megacycles, constructed to be air operated so as to eliminate the need for an external actuator. The switch includes an airactuated piston which reciprocates between open and closed positions of the switch, and which also constitutes the movable contact element of the switch.

Soft Break Switch
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US Patent:

48229610, Apr 18, 1989
Filed:

Mar 7, 1988
Appl. No.:

7/164658
Inventors:

Peter E. Hugin - Los Altos CA
Ted N. Tilman - San Jose CA
International Classification:

H01H 930
H01H 1500
US Classification:

200 16R
Abstract:

A soft break switch for forming a short circuit between two conductors while the switch is in a closed position, for forming an increasingly resistive circuit between the conductors while the switch is being moved to an open position, and for forming an open circuit between the conductors when the switch is in an open position. The resistive circuit enhances arc suppression.

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Ted N Tilman