B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/1157, 18/180
B29D 30/54 (2006.01)
Patent
CA 1091877
Abstract of the Disclosure This disclosure relates to a self-locking mold formed of a plurality of matrices movable between open and closed positions thereof with the latter position defining a generally annular chamber, means for pressurizing an object within the annular chamber, and means in the form of a pair of locking plates responsive to the pressurization for locking the matrices in the closed position thereof.
260481
Macmillan Kenneth T.
Swabey Ogilvy Renault
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