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US 4,227,232 AGranted
Clutch protection circuit
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorJonathan M. Goode
Life of this patent
Estimating the term…
Abstract
A circuit for the protection of devices from power line transients and accidental shut-down requiring operator performance for restart including a push button switch for resetting holding relays to operate the apparatus.
Claims6
A protection circuit for use in devices having cyclic mutliple clutch system including, an AC power supply, a motor control means and clutch drive motor, a feed control means and feed clutches, a protection cycle generator and data clutches, the improvment comprising:
- a source of direct current power;
- a first electromagnetic relay switch having an electromagnet and a plurality of switch contacts;
- wherein one of the contacts is connected to the motor control means, the feed control means and the protection cycle generator and;
- wherein another of the contacts is connected to the motor control motors and feed control means;
- a second electromagnetic relay switch having an electromagnet and a plurality of switch contacts;
- wherein one of the contacts is connected to a contact of the first said relay switch;
- a biased switch having a plurality of switch contacts, wherein one of the contacts is connected to a contact of the first said relay switch, and wherein another of the contacts is connected to a contact of the second said relay switch;
- and a mechanical switch means having a plurality of switch contacts;
- wherein one of said contacts is connected to a contact of said bias switch.
6 more elements
Dependencies are inferred from the claim text.