Rotary device of variable diameter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 19, 2001
Grant Date -
N/A
app pub date -
Sep 14, 1999
filing date -
Mar 15, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotary device comprising two elements (12, 20/22) supported for rotation about an axis (11) and movable relative to one another along said axis, and diaphragm spring means (33) urging said elements axially relative to one another, said diaphragm spring means having radially inner and outer portions connected respectively to said elements and arranged such that said elements are constrained to movement in opposite directions by the same or substantially the same distance as one another about an axially fixed position.
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