Kingpin lock

Details Kingpin lock Kingpin lock

2005-02-01

2005-02-01

Walsh, John B. (Department: 2151)

Locks

Portable

C070S058000, C070S229000

Reexamination Certificate

active

06848282

ABSTRACT:
A kingpin lock includes a vertically-oriented tube with a conical shell formed by a plurality of gussets projecting radially from the tube. The gussets are triangular in shape, so that the conical shape tapers from the upper end to the lower end of the tube. A plunger type lock is mounted on the tube and is operable to move a securement pin into a notch on the kingpin to secure the kingpin within the tube, and to withdraw the pin from the notch to permit removal of the kingpin from the tube.

REFERENCES:
patent: 2554306 (1951-05-01), Mack
patent: 2755655 (1956-07-01), Maffey
patent: 3415085 (1968-12-01), Eble, Jr.
patent: 3600914 (1971-08-01), Johnson et al.
patent: 3798938 (1974-03-01), McCullum
patent: 3922897 (1975-12-01), Mickelson
patent: 4031727 (1977-06-01), De Groat et al.
patent: 4132093 (1979-01-01), McDorman, Sr.
patent: 4305266 (1981-12-01), Lockwood
patent: 4697444 (1987-10-01), Maffey
patent: 4704883 (1987-11-01), Dykes
patent: 5259223 (1993-11-01), Nee
patent: 5782116 (1998-07-01), Ryan et al.

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