Electricity: motive power systems – Reciprocating or oscillating motor – Energizing winding circuit control
Patent
1979-07-12
1981-12-01
Duggan, Donovan F.
Electricity: motive power systems
Reciprocating or oscillating motor
Energizing winding circuit control
11212126, 318114, 318129, H02K 3300
Patent
active
043038697
ABSTRACT:
A control circuit for an electromagnetic cutting apparatus includes auxiliary power impulse systems and auxiliary condensers for accelerating an already moving plunger of the cutting apparatus. The basic control circuit includes photoelectric sensors for sensing the leading and trailing edges of components. The sensors are part of an electronic circuit for rapidly charging a coil surrounding a core on the plunger for driving a blade downwardly to cut the tape. Condensers in the electronic circuit are normally charged and, in response to signals from the photoelectric sensors, instantaneously discharge into the coil to actuate the plunger. The auxiliary power impulse systems and auxiliary condensers are controlled by timers for discharging the auxiliary condensers into the coil a short time after the condensers of the basic circuit and while the plunger is moving to accelerate the latter.
REFERENCES:
patent: 2520537 (1950-08-01), Forman
patent: 3361948 (1968-01-01), Sawyer
patent: 3931554 (1976-01-01), Spentzas
patent: 4095536 (1978-06-01), Hujik et al.
patent: 4215297 (1980-07-01), Jacquemet
Bata Shoe Company, Inc.
Duggan Donovan F.
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