Magnetically coupled arrangement for a driving and a driven member
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United States of America Patent
Stats
-
Oct 12, 1982
Grant Date -
N/A
app pub date -
May 28, 1980
filing date -
Jun 1, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention is concerned with a magnetically coupled arrangement for a driving and a driven member, which arrangement is operable by a pressure medium and is used in a conveying system. A slidable piston (16) within a tube (10) has an arrangement of annular magnets (20) provided at each end with sealing and sliding members (24, 26). A driven assembly (18) slidable on the outer surface of the tube (10) has an arrangement of annular magnets (32) corresponding to the magnets (20) and provided at each end with a sliding ring (44). The members (24, 26, 44) prevent ingress of foreign bodies to the magnet locations, and consequently enable the spacing between the magnets and the tube (10) to be very small. A good magnetic coupling is achieved resulting in effective transmission of power. Several pistons (16) abutting one another can be used for conveying heavy loads.
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