Metal working – Method of mechanical manufacture – Electrical device making
Patent
1985-02-05
1986-09-16
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
29622, 156 731, 264 23, 264249, H01H 1100
Patent
active
046113924
ABSTRACT:
A method of assembling electromagnetic relays by securing and aligning the magnetic pole pieces in the base of the relay through the use of ultrasonic reformation of the base material.
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patent: 4193181 (1980-03-01), Boulanger et al.
patent: 4320369 (1982-03-01), Bukala
patent: 4344103 (1982-08-01), Nagamoto et al.
patent: 4475093 (1984-10-01), Kobler
patent: 4482876 (1984-11-01), Stadler et al.
patent: 4490705 (1984-12-01), Mueller
Hall Carl E.
Moran John F.
Potter & Brumfield, Inc.
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