Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent
1980-06-02
1982-06-29
Truhe, J. V.
Electricity: motive power systems
Braking
Automatic and/or with time-delay means
318345R, 318305, 200 16A, 200244, 200340, 200157, 200159R, H02P 724, H01H 122
Patent
active
043374255
ABSTRACT:
A speed control trigger switch of a double-pole configuration. One pole of said switch is an ON-OFF switch, while the other pole controls the speed control circuit. A contact carrier block (20) carries the two movable contacts (22,38), one for each pole of the switch. As the carrier block begins to move, the contact for the speed control side closes the speed control circuit by contacting two contacts, a contact/terminal (26) and a heat sink (24). As the block continues to move due to continued pressure on the trigger (16), the speed of the motor controlled by the switch continues to increase until the FULL-ON position is reached when the movable contact (22) closes the gap between the two contact/terminals (26,36). The contact portion (36a) of that contact/terminal is located between the other contact/terminal (26) and the heat sink (24) for efficiency and compactness of design.
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Eaton Corporation
Grace C. H.
Moose Richard M.
Truhe J. V.
Vande Zande L. G.
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