Class 335/233 - With armature-locking means

Subclass of Class 335 - Electricity: magnetically operated switches, magnets, and electromagnets
Definition: Subject matter including means to lock at least one of the
No. of patents: 4
Last issue date: 05/08/2001

Number	Title	Issue Date
6229421	Autosecuring solenoid An autosecuring solenoid utilizes an interposing device that restrains the solenoid plunger when the solenoid is de-energized and/or energized, effectively preventing undesired movement of the plunger. When a voltage is applied across the coil, the flowin...	05/08/2001
5896076	Force actuator with dual magnetic operation An electromagnetic active vibration actuator configuration combines two modes of operation to obtain the advantages of long stroke and linearity of voice coil type actuators and high efficiency of dual-gap solenoid type actuators. A coaxial stator shell s...	04/20/1999
5883557	Magnetically latching solenoid apparatus A magnetically latching solenoid apparatus is characterized by a non-magnetic armature carrying a permanent magnet having poles aligned with the throw axis of the device. The poles of the magnet are substantially aligned with corresponding pole pieces and...	03/16/1999
4620173	Latching magnetic actuator A magnetically driven and latched actuator includes an armature, at least a part of which is of a ferromagnetic material, mounted for reciprocating travel between two spaced apart limit positions. An electrical coil is operative upon the ferromagnetic mat...	10/28/1986

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