Simplified low backlash LVDT coupling
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 11, 2002
Grant Date -
N/A
app pub date -
Aug 7, 2000
filing date -
Aug 7, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An LVDT assembly measures movement of a linkage. The LVDT assembly includes multiple LVDT units mounted in parallel to an LVDT input member for concurrent operation. The LVDT assembly also includes a rotary head that has a threaded portion that is secured to the linkage by rotating the head and engaging mating threads on the linkage and on the rotary head. A conventional ball bearing assembly is provided between the rotary head and the stationary input member. A metallic ball is between the rotary head and the input member. A set screw engages the ball. Tightening the set screw stresses transmits a force from the set screw, the ball and the input member to stress the ball bearing. The stress substantially eliminates backlash between the rotary head and the LVDT input member.
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