Cotter pin spreader with safety lock feature

Details Cotter pin spreader with safety lock feature Cotter pin spreader with safety lock feature

1991-11-06

1992-10-06

Moore, Richard E.

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

Fastener securing element

Cotter pin

411364, F16B 2114

Patent

active

051526522

ABSTRACT:
A device for automatically spreading and locking cotter pins as they are driven into place. The device is an improvement on the cotter pin spreading devices disclosed in U.S. Pat. Nos. 1,751,013 dated Mar. 18, 1930 and 2,345,141 dated Mar. 28, 1944. The improved devices have locking extensions which, during the act of driving cotter pins into place, become deformed into locking engagement with the heads on the driven and spread cotter pins. Several forms of locking extensions are disclosed.

REFERENCES:
patent: 750501 (1904-01-01), Tarbox
patent: 1751013 (1930-03-01), McMullen
patent: 1918148 (1933-07-01), Strickland
patent: 2122073 (1938-06-01), Schaefer
patent: 2345141 (1944-03-01), McMullen
patent: 2391140 (1945-12-01), Dilley
patent: 2559737 (1951-07-01), Schaefer

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