G - Physics – 01 – L
Patent
G - Physics
01
L
73/14
G01L 3/00 (2006.01) B25B 23/14 (2006.01)
Patent
CA 1132362
TIGHTENING APPARATUS Angelo Tambini ABSTRACT The preferred embodiment of the invention disclosed in this application includes a wrench, for example an operator powered wrench, for tightening a fastener assembly by the period- ic application of tightening force. Also included is a control circuit for detecting a phenomena indicating that the joint assembly in which the fastener assembly is installed has been tightened to its yield point. The control circuit further in- cludes checking means for determining that the fastener assembly is being tightened to assure that when the phenomena is detected, the joint assembly has been tightened to, the yield point.
386431
Gowling Lafleur Henderson Llp
Sps Technologies Inc.
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