Barrel type lock and key

Details Barrel type lock and key Barrel type lock and key

1976-07-26

1977-11-22

Wolfe, Robert L.

Locks

Portable

Padlocks

70386, E05B 6736

Patent

active

040589927

ABSTRACT:
The present is an improved form of barrel type lock in which positive contracting mechanical gripping engagement between the key and the spring-biased locking plunger of the lock replaces the expanding frictional type of engagement hitherto used. This change both greatly increases the power of the key to operate weathered or otherwise recalcitrant locks and also provides for different series of locks of the same standard construction which will be operable exclusively by their own particular key.

REFERENCES:
patent: 3446045 (1969-05-01), Finck
patent: 3868886 (1975-03-01), Bondie

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