Apparatus and method for manipulation of sleeves on a cylinder
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United States of America Patent
Stats
-
Apr 24, 2007
Grant Date -
Mar 24, 2005
app pub date -
Sep 21, 2004
filing date -
Sep 22, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus are provided for the manipulation of a sleeve onto and off of a cylinder. A sleeve mounted on a handling shaft is equipped with a substantially airtight slideable end cap at its distal end. During mounting, axial alignment is provided when the handling shaft is engaged with the free end of the cylinder. A plurality of apertures on the cylinder's exterior surface conduct pressurized air, which expands the sleeve by exerting radial fluid pressure on its inside surface. A vacuum source actively evacuates the air from the sleeve's interior drawing the sleeve onto the cylinder. To remove the sleeve fluid pressure is reasserted exerting an axial force against the substantially airtight end cap. An auxiliary air supply is selectively activated to aid in sleeve removal.
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