Solenoid

Details Solenoid Solenoid

2007-03-26

2009-12-29

Barrera, Ramon M (Department: 2832)

Valves and valve actuation

Electrically actuated valve

C251S129020, C251S129170, C335S229000, C335S234000, C335S264000, C335S265000, C335S266000

Reexamination Certificate

active

07637475

ABSTRACT:
A solenoid is provided which, in the preferred embodiment, has a housing having an axial opening in it. The housing has a divider mounted in the axial opening to separate the axial opening into a first segment and a second segment. Respective ones of a first pole piece and a second pole piece are located on opposite sides of the divider. The first pole piece is moveable with the first segment between an extended position and a retracted position, the first pole piece having a plunger positioned at an end of the first pole piece. A permanent magnet is moveably mounted from the axial opening and is moveable independently of the second pole piece between at least a first position adjacent to the divider, and a second position adjacent the second pole piece. The construction provides a fast acting, low cost latching solenoid construction.

REFERENCES:
patent: 5497135 (1996-03-01), Wisskirchen et al.
patent: 6337635 (2002-01-01), Ericksen et al.

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