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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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Class Information
Number: 254/316
Name: Implements or apparatus for applying pushing or pulling force > Apparatus for hauling or hoisting load, including driven device which contacts and pulls on cable > Device includes rotatably driven, cable contacting drum > Plural drums or drum with plural distinct sections > Having common drive source or mechanically interlinked drive trains > Including electric motor in drive
Description: Apparatus wherein the common drive source includes a motor of the kind operated solely by electricity.


Patents under this class:

Patent Number Title Of Patent Date Issued
7353913 Elevator hoisting machine and motor Apr. 8, 2008
6874763 Driving device for the traction of cables or chains Apr. 5, 2005
6089547 Method and apparatus for winch upgrading Jul. 18, 2000
5631511 Gear motor with an electric motor having a hollow shaft May. 20, 1997
5607142 Lifting apparatus Mar. 4, 1997
5167401 Hoist drive and method for driving a double hoist carrying apparatus Dec. 1, 1992
4438903 Obstacle detector for a descending or ascending load Mar. 27, 1984



 
 
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