Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Reexamination Certificate
2007-01-12
2008-08-05
Barrera, Ramon M. (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
C335S229000, C335S234000, C335S272000
Reexamination Certificate
active
07408433
ABSTRACT:
A pin lock is movably mounted for linear movement along a longitudinal axis. A magnet, preferably a permanent magnet, is mounted for limited rotation between the pin extended and pin retracted positions. An electromagnet provides a controllable electromagnetic field which encompasses at least a portion of the permanent magnet. A ferromagnetic latch is located within the magnetic field of the mounted magnet in each of the pin extended and pin retracted positions. A mechanical interconnection between the pin lock and the permanent magnet for moving the pin lock when the permanent magnet is rotated wherein the movement extends or retracts the pin lock between its pin extended and pin retracted positions. Reversing the electromagnetic field of the electromagnet serves to rotate the magnet so that the pin lock moves from one to the other of the two positions.
REFERENCES:
patent: 4691135 (1987-09-01), Sogabe et al.
patent: 4855700 (1989-08-01), Mohler
patent: 5337030 (1994-08-01), Mohler
patent: 6507257 (2003-01-01), Mohler
patent: 6756873 (2004-06-01), Mohler
Barrera Ramon M.
Nixon & Vanderhye P.C.
Saia-Burgess Inc.
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