Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1987-07-17
1988-10-11
Salce, Patrick R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 89, 310 68A, H02K 714, H02K 508
Patent
active
047773936
ABSTRACT:
A modular tool assembly includes a single motor unit and a plurality of toolheads. The housings for the various toolheads include different engaging structures for engaging combinations of control switches of the motor unit, thereby providing different operating characteristics to the various tools formed by engagement of the motor unit and the toolheads. A direction reversing switch of the motor unit is placed in a fixed position by some of the toolheads and is left in a controllable condition by others. An on/off switch is provided in the motor unit, as is an on/off and speed control switch. The various toolheads include engaging means for engaging one or the other of the control switches, thus providing fixed speed or variable speed, fixed direction or reversible direction, for operation of a plurality of tools utilizing a single motor unit.
REFERENCES:
patent: 4591777 (1986-05-01), McCarty et al.
patent: 4647831 (1987-03-01), O'Malley et al.
Davis David L.
Rebsch D. L.
Salce Patrick R.
The Singer Company
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