Title: Solid state motor control system

Abstract: In a friction-fusion apparatus a solid state control circuit including a triac connected in series with an electric motor, and a control circuit connected across said triac including a resistor and a capacitor and a diac connected between the junctions thereof and the gate electrode of the triac. A voltage control circuit across the capacitor normally limits the voltage across the capacitor to an amplitude insufficient to trigger the diac and is operative in response to a manually actuated switch to increase that voltage, thereby triggering the diac and rendering the triac conductive to operate the motor for a selected time interval.

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Inventors: Bresler, Burt (Vernon Hills, IL, US)

Application Number: 368331
Filing Date: 1973-06-08
Publication_date: 1976-03-02
Assignee: Signode Corporation (Glenview, IL)
Primary Class(es): 318/447 318/453, 318/484
Other Classes:
US Patent Ref:

2884531	Apr, 1959	Bosch	318/453.
3456179	Jul, 1969	Joslin	318/453.
3523234	Aug, 1970	Turtle	318/345.
3546556	Dec, 1970	Benkert et al.	318/345.
3596158	Jul, 1971	Watrous	318/345.
3634874	Jan, 1972	Mason	318/345.
3669799	Jun, 1972	Vilcins et al.	156/359.
3739198	Jun, 1973	Clements	318/345.
3742337	Jun, 1973	Digneffe	318/345.
3761789	Sep, 1973	Krafft et al.	318/345.
3783362	Jan, 1974	Basso et al.	318/DIG.

Other Refs:
Primary Examiner: Dobeck, B.
Assistant Examiner:
Attorney: Dressler, Goldsmith, Clement & Gordon, Ltd.