Universal barrel key apparatus

Details Universal barrel key apparatus Universal barrel key apparatus

1976-07-29

1977-09-06

Wolfe, Robert L.

Locks

Operating mechanism

Key

70411, E05B 1902

Patent

active

040459837

ABSTRACT:
A barrel key apparatus wherein there is a handle section attached to a cylindrically shaped tubular section, within the cylindrically shaped tubular section there is located a plurality of spaced apart elongated grooves which are of the same length and extend from the outer free end of the tubular section. Within each of the grooves there may be selectively located one of a group of different length push pins. At the inner end of each groove is located an opening extending to the interior of the tubular section. The push pin includes an attaching means comprising a plurality of spaced apart annular ridges successively connected together along a single longitudinal axis. The attaching means is to be inserted within the opening at the end of the groove with the under surface configuration of the push pin matingly cooperating within the groove and the outer surface of the push pin cooperating with the outer surface of the tubular section to form a flush, smoothly contoured surface. The attaching means is such that it prevents withdrawal of the push pin once it has been inserted without destroying or damaging the pin.

REFERENCES:
patent: 3142167 (1964-07-01), Christopher
patent: 3330141 (1967-07-01), Greenwald
patent: 3681957 (1972-08-01), Sturgeon
patent: 3727440 (1973-04-01), Greenwald

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