Solenoid activated closure device

Details Solenoid activated closure device Solenoid activated closure device

1982-07-20

1985-05-21

Thomas, James D.

Boots, shoes, and leggings

3107, 324207, 364166, 364174, G01B 714, A61F 100

Patent

active

045190437

ABSTRACT:
A solenoid closure servo control eliminates impact of the solenoid poles against each other upon closure of the device. A model of the device closure is obtained from a parameter of initial gap. During closure of the device, the rate of closure of the gap of the solenoid and the force in balance between the spring and magnetic force is calculated and compared to the model. Imbalances are corrected by applying a corrective voltage to the solenoid coils.

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