Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent
1991-04-10
1992-08-11
Broome, Harold
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
335261, H01H 708
Patent
active
051382911
ABSTRACT:
An inexpensive type of linear solenoid actuator for moving a plunger along a straight line, while providing a force on the plunger due to the actuator which does not vary greatly over the length of stroke of the plunger; a spring opposes the force exerted on the plunger by the solenoid, so that the plunger will assume any of a range of positions in response to different currents through the solenoid. The plunger has a first larger portion of magnetic material sliding in a first bearing; a tapered second magnetic portion extending forwardly from the first portion; a magnetic third portion of substantially cylindrical form extending forwardly from the tapered portion; and a front non-magnetic portion sliding in a second bearing and supporting the front end of the plunger. The second bearing is in a magnetic end piece having substantial axial width. The stroke of the plunger is preferably such that the forward end of the magnetic third portion moves from a first position near the adjacent end of a magnetic end piece in which the second bearing is mounted, to a second position well within or outside the other end of the magnetic end piece.
REFERENCES:
patent: 1668752 (1928-05-01), Anderson
patent: 2523660 (1950-09-01), Hulstein
patent: 2895089 (1959-07-01), Leber
patent: 2933571 (1960-04-01), Howell
patent: 3210616 (1962-10-01), Severn
patent: 3787791 (1974-01-01), Borger et al.
patent: 4114125 (1978-09-01), Komatsu
patent: 4150351 (1979-04-01), Berg
patent: 4177440 (1979-12-01), Merlette
patent: 4218669 (1980-08-01), Hitchcock et al.
patent: 4463332 (1984-07-01), Everett
patent: 4583067 (1986-04-01), Hara
patent: 4812884 (1989-03-01), Mohler
D. R. Hardwick, Hydraulics & Pneumatics, Aug. 1984 entitled "Understanding Proportional Solenoids".
A-I-L Corporation
Broome Harold
LandOfFree
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