Multiple impact motor drive for stapling

Details Multiple impact motor drive for stapling Multiple impact motor drive for stapling

1996-04-03

1998-10-06

Sircus, Brian

Electricity: motive power systems

Limitation of motor load, current, torque or force

318433, 318280, H02K 1732

Patent

active

058181865

ABSTRACT:
An electric stapler is provided with current in multiple pulses in order to penetrate a thick stack of paper. The stapler is provided with current sufficient to staple a thin stack of paper. If the stapler does not complete its staple function after a time period corresponding to anticipated completion of the cycle, the current is interrupted. The current is then reapplied after the load on the stapler has attenuated. The reapplication of current results in a hammering action. This permits a thicker stack of paper to be stapled with a stapler which is optimized for the thin stack.

REFERENCES:
patent: 4380312 (1983-04-01), Landrus
patent: 5230457 (1993-07-01), Hiroi et al.
patent: 5440215 (1995-08-01), Gilmore

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