Electric stapler having electronic control circuit

Details Electric stapler having electronic control circuit Electric stapler having electronic control circuit

1988-12-30

1990-07-10

Bell, Paul A.

Elongated-member-driving apparatus

With control means responsive to sensed condition

Work-responsive

227131, B25C 515, B25C 700

Patent

active

049401777

ABSTRACT:
An automatic electric stapler in which the staple driver is attached to the armature of the solenoid so that actuation of the solenoid directly impels the staple driver against the anvil of the stapler. The armature includes a central passage through which a spring extends for biasing the armature away from the anvil and through which cooling air is forced during operation of the solenoid. An electronic circuit includes a photodetector for triggering the stapler and a lockout feature preventing double triggering. A safety feature automatically removes operating power from the stapler after a predetermined time period of dormancy.

REFERENCES:
patent: 4386725 (1983-06-01), Chambers
patent: 4421264 (1983-12-01), Arter et al.
patent: 4491260 (1985-01-01), Jimena
patent: 4515303 (1985-05-01), Schadlich et al.
patent: 4611742 (1986-09-01), Rieker et al.
patent: 4795071 (1989-01-01), Jacobs et al.

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