Metal fusion bonding – With means to handle work or product – Including means to orient work or position work portion...
Patent
1986-03-11
1988-05-03
Ramsey, Kenneth J.
Metal fusion bonding
With means to handle work or product
Including means to orient work or position work portion...
269 481, 279 2R, B23K 3704
Patent
active
047414731
ABSTRACT:
An expandable structure includes a hollow tubular frame having radially outwardly extending portions which define two longitudinally spaced-apart annular channels. Two segmented cylinders are respectively disposed in the channels, each cylinder comprising alternating long and short segments abutting along cam surfaces which lie in planes defining chords of the cylinders. Each long segment is biased inwardly by a spring which bears against the head of a stud which extends radially inwardly from the segment through a complementary opening in the frame. Pusher members are movable axially inside the frame for camming engagement with cam follower lugs which extend radially inwardly from the short segments through apertures in the frame. The pushers are slotted to accommodate the bias spring studs. Means is provided for rotating the frame about its axis.
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