Magnetic wedge

Details Magnetic wedge Magnetic wedge

1976-01-06

1977-08-09

Edmundson, F.C.

Compositions

Magnetic

With wax, bitumen, resin, or gum

H01F 100

Patent

active

040409716

ABSTRACT:
A magnetic wedge is made by preparing a composition of a thermosetting resin system and magnetizable particles, placing the composition in a mold, vibrating the mold at least until air bubbles are no longer evolved from the composition, curing the composition, and fabricating the lower portion of the cured composition into the shape desired for the wedge. The vibration removes air and compacts the particles which results in a wedge having overall superior physical and magnetic properties.

REFERENCES:
patent: 2526174 (1950-10-01), Ukropina
patent: 2716070 (1955-08-01), Seipt
patent: 2849312 (1958-08-01), Peterman
patent: 3024392 (1962-03-01), Baermann
patent: 3066355 (1962-12-01), Sckloemann et al.
patent: 3470021 (1969-09-01), Hendrix et al.
patent: 3867299 (1975-02-01), Rohatgi

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