B - Operations – Transporting – 23 – D
Patent
B - Operations, Transporting
23
D
B23D 79/02 (2006.01)
Patent
CA 2588431
An improvement to a surface burring tool comprising the use of drive pins each with flat surfaces, the first flat surface to bear on the flat surfaces of the angled ramps of the tool body so as to reduce pressure and to thereby reduce wear, and the second flat surface to locate against an edge of the slot in the retaining clip of the blade assembly to prevent rotation of the pin. This will ensure that the first flat will be parallel to its ramp on insertion of the replaceable blade assembly into the tool body. Pin rotation might result in the first flat not remaining parallel the tool ramp on which the pin slides during tool operation.
Arbesman Ray
Deeth Williams Wall Llp
Mackelvie Winston
LandOfFree
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