Linear differential mechanism

Details Linear differential mechanism Linear differential mechanism

1986-01-13

1988-03-15

Reese, Randolph A.

Machine element or mechanism

Mechanical movements

Rotary to or from reciprocating or oscillating

74 8915, 744248R, F04B 2102

Patent

active

047305037

ABSTRACT:
A differential mechanism including a housing, an elongate shaft disposed in the housing which is coupled to an object to be moved with the shaft defining a ring-handed thread along a first portion thereof and a left-handed thread along a second portion thereof. A right-handed nut is mounted on the first portion of the shaft in engagement with the right-handed thread, and a left-handed nut is mounted on the second portion of the shaft in engagement with the left-handed thread, with the right-handed and left-handed nuts being fixedly mounted for independent rotation within the housing, whereby selective rotation and prevention of rotation of said right-handed and left-handed nuts effects rotational and/or translational movement of said shaft relative to said housing.

REFERENCES:
patent: 260366 (1882-07-01), Burr
patent: 2340029 (1944-01-01), Weingartner
patent: 3187601 (1965-06-01), Glenn
patent: 3779094 (1973-12-01), La Barre
patent: 3803926 (1974-04-01), Winter
patent: 3844177 (1974-10-01), Bourassa
patent: 4343200 (1982-08-01), Alworth et al.
patent: 4509379 (1985-04-01), Westmoreland

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