Spindle clamp for removable disks
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United States of America Patent
Stats
-
Jul 5, 1988
Grant Date -
N/A
app pub date -
Jan 27, 1987
filing date -
Jan 27, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spindle clamp for supporting a disk for rotation about an axis, the disk having a central aperture, in which fluid pressure actuates release of the disk and split jaws clamp the disk in the absence of fluid pressure. The clamp includes a hub which is rotatable about a central axis, an annular jaw split into a plurality of jaw pieces and disposed in a trough defined in the hub. A cap is spring biased downward against the jaw pieces. A central cone located radially inward from the trough defines a wedge surface. O-ring springs bias the jaw pieces inward into engagement with the wedge surface. Fluid pressure applied through passageways in the hub against a diaphragm causes the diaphragm to bulge upward against the jaw pieces, releasing the disk.
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