Magnetic filter

Details Magnetic filter Magnetic filter

1987-05-20

1988-08-09

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

210222, H01F 702

Patent

active

047630922

ABSTRACT:
A magnetic filter consisting of a screw plug having a recess formed at the tip end of its screw rod portion and directed in the axial direction thereof, a rod-shaped permanent magnet piece fitted in the recess, and a non-magnetic member interposed between the permanent magnet piece and an inner circumferential surface of the screw rod portion defining the recess. The rod-shaped permanent magnet piece is magnetized so that magnetic poles may appear on its circumferential surface at diametrically opposite ends of its transverse cross-section, and the rod-shaped permanent magnet piece is axially projected from the tip end surface of the screw rod portion.

REFERENCES:
patent: 1944208 (1934-01-01), Bock
patent: 2698090 (1954-12-01), Chievitz
patent: 2936890 (1960-05-01), Botstiber
patent: 3170871 (1965-02-01), Moriya
patent: 3462720 (1969-08-01), Miyata
patent: 3753183 (1973-08-01), Aspinwall et al.
patent: 4254393 (1981-03-01), Robinson

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