Solenoid

Details Solenoid Solenoid

2007-03-27

2007-03-27

Barrera, Ramon M. (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

C335S229000, C335S255000, C335S265000

Reexamination Certificate

active

11129866

ABSTRACT:
A solenoid is provided which, in the preferred embodiment, has a bobbin having an axial opening in it. A divider is mounted within the opening. Respective ones of a first pole piece and a second pole piece are located on opposite sides of the divider. 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: 3647177 (1972-03-01), Lang
patent: 4587506 (1986-05-01), Hoeksma
patent: 5365210 (1994-11-01), Hines
patent: 5497135 (1996-03-01), Wisskirchen et al.
patent: 5947155 (1999-09-01), Miki et al.
patent: 6002184 (1999-12-01), Delson et al.
patent: 6422533 (2002-07-01), Harms
Lequesne, Bruno; “Fast-Acting Long-Stroke Bistable Solenois with Moving Permanent Magnets”; IEEE Transactions on Industry Applications, vol. 26, No. 3, May/Jun. 1990, p. 401-407.

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