Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Nut – and means to engage substructure on its opposite faces...
Patent
1984-09-28
1986-06-17
Holko, Thomas J.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Nut, and means to engage substructure on its opposite faces...
411 61, 411175, 411437, 411970, F16B 3702
Patent
active
045953252
ABSTRACT:
Disclosed are two embodiments (40, 50) of a self-locking prevailing torque fastener featuring a common base portion (2) having an aperture (4) therethrough for receiving a threaded member that is at least partially surrounded by means such as a warped helical edge (6) for engaging the threads of the threaded member. Fasteners (40, 50) are provided with a pair of spaced-apart resilient torque arms having respective sections (8) that respectively extend downwardly from opposite edge of base portion (2) to sections (10) that extend upwardly to sections (12) that extend through respective openings (14) in each to respective free-ends (16) that are adapted to press against opposite sides of the threaded member. Each arm is provided with a tab (18) that extends outwardly away from section (12) and is adapted to engage opposite edges of an opening through an article such as a panel to which fastener (40, 50) is to be secured with sufficient force to inhibit loosening of the threaded member from fastener (40, 50) and also to lock the fastener to the article.
REFERENCES:
patent: 1817584 (1931-04-01), Rosenberg
patent: 2267379 (1941-12-01), Tinnerman
patent: 2364668 (1944-12-01), Simmons
patent: 2370375 (1945-02-01), Simmons
patent: 2389278 (1945-11-01), Simmons
patent: 2390752 (1945-12-01), Tinnerman
patent: 2560518 (1951-07-01), Amesbury
patent: 2707013 (1955-04-01), Flora et al.
patent: 3645311 (1972-02-01), Tinnerman
patent: 4175303 (1979-11-01), Benedetti
patent: 4300865 (1981-11-01), Murray
Laudi Dante A.
Moran Thomas M.
Chrow A. E.
Eaton Corporation
Grace C. H.
Holko Thomas J.
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