Metal working – Method of mechanical manufacture – Disassembling
Patent
1979-02-26
1981-04-14
Bilinsky, Z. R.
Metal working
Method of mechanical manufacture
Disassembling
408 1R, 408 79, 408204, 408703, B23B 3500, B23B 5104, B23P 1900
Patent
active
042610931
ABSTRACT:
A tool and method for cutting the housing of a lock assembly for gaining legitimate entry into a locked enclosure, the housing including an annular flange portion and receiving a lock mechanism having a lock trunnion. The trunnion is provided with a key-receiving slot and the lock mechanism is otherwise conventional.
The tool includes a blade for cutting the flange off said housing. An elongated pilot key element is provided with a journal mounted for rotation relative to said blade about the axis of rotation of the latter. The key element is disposed radially within the rotational path of the blade and is adapted to be received by the slot within the trunnion to serve as a locator for the blade. By reason of the journal connection between the key element and the blade, the key element serves as a rotational guide for the blade which causes the latter to follow a given circular path in cutting the aforesaid flange from the housing when the key element is inserted in the trunnion slot.
REFERENCES:
patent: 2484150 (1949-10-01), Brown
patent: 4090804 (1978-05-01), Haley
Deflanger Tool Advertisement, published by Role Tool Co. Inc., Orlando, Florida.
Gregory David L.
Steffen Robert G.
Bilinsky Z. R.
Gregory David L.
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