Adjustable pre-load screw and nut assembly

Details Adjustable pre-load screw and nut assembly Adjustable pre-load screw and nut assembly

1991-11-04

1993-10-12

Lindsey, Rodney M.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Having structure to restrict rotation of threaded, mating...

Structure is coaxial, distinct member that restricts nut piece

411312, 411433, F16B 3912

Patent

active

052520153

ABSTRACT:
An adjustable pre-load screw and nut assembly is described including a screw with external helical threads and a nut having two separate portions each with internal threads complementary to those on the screw. An adjustment nut and adjacent O-ring can be turned an amount sufficient to interengage the nut portions to urge them apart and thus establish contact with opposing surfaces of the screw threads to effect pre-loaded contact therewith to eliminate backlash when the screw is turned in either direction.

REFERENCES:
patent: 453660 (1891-06-01), Reynard
patent: 723373 (1903-03-01), Duryea et al.
patent: 1183556 (1916-05-01), Green
patent: 1604445 (1926-10-01), Hem
patent: 2840404 (1958-06-01), Weber, Jr.
patent: 3030996 (1965-04-01), Doerr
patent: 4431354 (1984-02-01), Griffin
patent: 4872795 (1989-10-01), Davis

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