Electric heating – Metal heating – Of cylinders
Patent
1986-05-22
1987-05-05
Leung, Philip H.
Electric heating
Metal heating
Of cylinders
200 50A, 200 50C, 200 6162, 126197, H05B 668, H01H 900
Patent
active
046635050
ABSTRACT:
An interlock switch assembly is disclosed having a unitary baseplate having relatively few moving parts and making use of conventional low cost miniature switches, each positively located and retained with respect to the baseplate. First and second actuators convert, respectively, linear motion of first and second operators into rotary motion to actuate the miniature switches. Switch actuation is prevented unless the properly timed motion of both operators is received by the actuators.
REFERENCES:
patent: 4034169 (1977-07-01), Armstrong et al.
patent: 4321445 (1982-03-01), Kristof et al.
patent: 4516007 (1985-07-01), Ringdahl et al.
patent: 4529852 (1985-07-01), Lewandowski
patent: 4542269 (1985-09-01), Sakoda
Interlock Switch Litton Drawing No. 10193-60 Date: 3-12-84.
Haurykiewicz John M.
Leung Philip H.
Litton Systems Inc.
Thiel Walter R.
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