Movable mechanical structures
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 6, 2000
Grant Date -
N/A
app pub date -
Aug 12, 1997
filing date -
Dec 5, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Several improvements relating to hexapods are described. The improvements relate to universal joints and ball and socket joints where two struts meet at a common focal point, two axis gimbals which are used for ballscrew drives in universal joints and a micro positioning device incorporating a hexapod structure. The universal joint (1) includes two part spheres (13, 14) connected to one strut (12) and a rotatable ring (15) connected to another strut (11). The two part spheres (13, 14) are secured together by fasteners (25) with the ring (15) secured therebetween so as to form a sphere. The ring (15) is preloaded and rotatable about a common axis (17) of the sphere.
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