Variable-speed rotating drive

Details Variable-speed rotating drive Variable-speed rotating drive

1996-04-28

1998-10-13

Lopez, F. Daniel

Motors: expansible chamber type

Plural relatively movable or rigidly interconnected working...

With means for selectively changing the speed or force...

92 31, 92 71, F15B 1102

Patent

active

058196323

ABSTRACT:
A variable-speed rotating drive is provided. A drive shaft terminates in a hreaded piston that is received in an internally threaded cylinder. A plurality of linear actuators are distributed evenly about the circumferential periphery of the internally threaded cylinder. The drive shaft is mechanically coupled with each shaft of the linear actuators so that axial movement of the linear actuators' pistons causes the threaded piston to move axially in the internally threaded cylinder. This brings about axial rotation of the internally threaded cylinder. An actuating source is coupled to the linear actuators to cause the axial movement of selected ones of the pistons based upon the desired speed of rotation of the internally threaded cylinder.

REFERENCES:
patent: 2942523 (1960-06-01), Darsie
patent: 2970442 (1961-02-01), Taylor
patent: 3513754 (1970-05-01), John
patent: 3771918 (1973-11-01), Winter
patent: 3818801 (1974-06-01), Kime
patent: 4373334 (1983-02-01), Carlander

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