Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1988-02-01
1989-10-17
MacDonald, Allen
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29523, 29723, 29726, B23P 700
Patent
active
048737534
ABSTRACT:
A controller for an apparatus for installing a mechanical tube plug includes a controller having a controller console remote from the tube installation site and a solenoid assembly located proximate to that site. The console includes switches and indicators for providing a rotation control signal to the apparatus. The solenoid assembly includes a circuit for receiving a torque indication signal from the apparatus and an alarm circuit for setting the torque at a predetermined upper limit in response to a signal input at said controller console. The circuit operates to terminate rotation control and disable the apparatus when said limit is reached. Other features of the controller are also disclosed.
REFERENCES:
patent: 4513786 (1985-04-01), Sodergren et al.
patent: 4722122 (1988-02-01), Overbay
Crabtree Samuel B.
Kiesche Eric A.
Combustion Engineering Inc.
Kananen Ronald P.
MacDonald Allen
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