Locks – Special application – For automotive vehicles
Patent
1977-03-09
1978-06-13
Dorner, Kenneth J.
Locks
Special application
For automotive vehicles
70232, E05B 6512
Patent
active
040941736
ABSTRACT:
A vehicle lock for releasably locking an engine block of a motor vehicle to an abutting transmission wherein the transmission housing has a plurality of bolt holes disposed in the peripheral portion thereof and the engine block has a plurality of registered bolt holes in marginal flanges integral with the engine block. A bolt having a head portion on one end and a threaded portion on its other end is received in one of said engine block and transmission housing registered bolt holes and has a length projecting therefrom. The projecting threaded end of the bolt is inserted into an aperture in the closed bottom end of a cup member that has an upwardly extending cylindrical wall and an open top. A nut is threadably received on the threaded end portion of the bolt and the nut is disposed within the cup member and spaced from its open end. Spaced inwardly from the open end of the cup are a pair of opposed apertures and a shackle of a padlock passes therethrough them. A floating disc having a diameter slightly smaller than the interior diameter of the cup is disposed within the cup between the threaded end of the bolt and the shackle of the padlock thereby preventing insertion of a special probe into the cup in order to gain access to the threaded nut.
REFERENCES:
patent: 619795 (1899-02-01), Schreiner
patent: 2316695 (1943-04-01), Jaffa
patent: 3120116 (1964-02-01), Burrell
patent: 3665739 (1972-05-01), Boll
Popular Mechanics, "Theft of Auto Tires Discouraged by Locking Wheel Nuts", Mar., 1944, p. 96.
Dorner Kenneth J.
Logan II Charles C.
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