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US 2001/0034193 A1Published application
Retaining mechanism for lapping device
OwnerJeffrey Murray, Jonathan Dooley +1inventors
InventorsJeffrey Murray, Jonathan Dooley, Lawrence Wolfson
Life of this patent
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Abstract
A quick change lap retaining device uses radially displaceable blades to engage a groove in the underside of a lap and thereby hold the lap in position. The device fails in the engaged position to prevent inadvertent movement of the lap. Removal of the lap occasioned by disengagement of the blades is preferentially by pneumatic drive but can also be manual.
Claims12
A lap retainer system comprising:
- a lap support;
- a shaft rotatably passing through said support;
- a blade attached to said shaft and rotatable therewith, said blade being engageable with a lap;
- and
- an actuation system operably coupled with said shaft to rotate said shaft and thereby rotate said blade.
2 more elements
A lap comprising:
- a domed top portion;
- an annular skirt depending from said top portion;
- a hollowed interior;
- an annular groove in said skirt said groove being open to said hollowed interior and closed to an exterior of said skirt.
1 more element
A method for retaining a lap comprising:
- supporting a lap on a lap support, said lap having an annular groove on an internal aspect thereof;
- and
- engaging said groove with a blade disposed under said lap when supported by said support.
Dependencies are inferred from the claim text.