Hermetically sealed electromechanical relay

Details Hermetically sealed electromechanical relay Hermetically sealed electromechanical relay

2006-11-28

2010-12-14

Enad, Elvin G (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Multiple contact type

C335S131000

Reexamination Certificate

active

07852178

ABSTRACT:
An electromechanical relay includes an armature and an inner core at least partially surrounding at least a portion of the armature. The armature is slidably movable relative to the inner core. A coil at least partially surrounding at least a portion of the inner core. The relay also includes a stationary contact held in a ceramic header and a movable contact connected to the armature via a shaft. The movable contact is movable between an open position wherein the movable contact does not engage the stationary contact and a closed position wherein the movable contact engages the stationary contact. The relay also includes a housing having an open end and a chamber. The chamber contains the armature, the inner core, the coil, the movable contact, and at least a portion of the stationary contact. The housing forms a portion of a magnetic circuit of the relay. The ceramic header is circumferentially welded to the housing adjacent the open end such that the chamber of the housing is hermetically sealed.

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