Jack-out captivated screw

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Member preassembled with substructure at through-passage or...

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Details

411353, 411999, F16B 3900

Patent

active

059416696

ABSTRACT:
A jack-out screw for attaching a first panel to a second panel when rotating the screw in a first direction and which provides a force in the axial direction of the screw with respect to the panel when the screw is rotated in the opposite direction to pry the first panel away from the second panel during rotation, including a screw and a housing where the upper surface of the housing is mountable flush with the panel on which the jacking screw is installed and an interface for securing the screw head to the housing allows for rotational movement of the screw along its axis, but does not allow for substantial axial movement of the screw with respect to the housing.

REFERENCES:
patent: 2376089 (1945-05-01), Savageau
patent: 3062253 (1962-11-01), Millheiser
patent: 3502130 (1970-03-01), Gulistan
patent: 3639971 (1972-02-01), Gulistan
patent: 3746067 (1973-07-01), Gulistan
patent: 4174008 (1979-11-01), Preziosi
patent: 4212224 (1980-07-01), Bragg, Jr. et al.
patent: 4878795 (1989-11-01), Woodrow
patent: 4930959 (1990-06-01), Jagelid
patent: 4952107 (1990-08-01), Dupree
Southco, Inc. captive Screw assembly, 1992.
Fastener Technology Corp., Jack Screw, 1987.
Asmco, Hex Jack Screw, part number 67664.
RAF Electronic Hardware Brochure, Seymour, CT 06483, 3/16 Hex Jack Screws.

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