Electricity: motive power systems – Automatic and/or with time-delay means – Movement – position – or limit-of-travel
Patent
1977-07-18
1979-11-20
Smith, Jr., David
Electricity: motive power systems
Automatic and/or with time-delay means
Movement, position, or limit-of-travel
H02P 300
Patent
active
041752481
ABSTRACT:
An electrically driven linear actuator has a housing with a plurality of bus bars mounted within the housing. An electric motor is positioned in the housing and is in driving relationship with a linearly movable actuator member. The actuator member carries a contact which moves along and in contact with the bus bars. There is an electrical connection between the bus bars and the motor with the flow of current through this connection being controlled by the movable contact.
REFERENCES:
patent: 1849643 (1932-03-01), Seasongood et al.
patent: 2688718 (1954-09-01), Hoffar
patent: 2756377 (1956-07-01), Litzman
Ferryman, Jr. Kenneth K.
Whitfield Dwight B.
Lake Center Industries
Smith Jr. David
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