Switching apparatus with voltage spike prevention

Details Switching apparatus with voltage spike prevention Switching apparatus with voltage spike prevention

2004-11-12

2009-10-27

Barrera, Ramon M (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Radio frequency switch

C333S105000

Reexamination Certificate

active

07609135

ABSTRACT:
A switching apparatus has a conductive housing forming a chamber. The housing has an aperture enabling communication between the chamber and a housing exterior. A rod extends through the aperture, and has a first end within the chamber, and an opposed second end outside the chamber. The rod reciprocates over a range of motion between a first position in which a limited portion of the rod extends into the chamber, and a second position in which a greater portion of the rod extends into the chamber. The rod has a electrically insulative portion electrically isolating the first end from the second end, and has a conductive surface contacting the housing. A pair of electrical contacts are located in the chamber, and a shorting bar connected to the first end of the rod operates to bridge the contacts when the rod is in a selected position.

REFERENCES:
patent: 4298847 (1981-11-01), Hoffman

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