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US 4,791,846 AGranted
Oscillating free wheeling resilient cover for rotary die-cutting anvil
AssigneeRobud
InventorAlan D. Kirkpatrick
Life of this patent
Estimating the term…
Abstract
Rotary die cutting apparatus wherein the die blanket is mounted with respect to the anvil head such that both longitudinal and transverse relative movement is permitted between the die blanket and the anvil head during operation of the apparatus.
Claims12
Anvil structure for rotary die cutting apparatus comprising:
- an anvil head suitable for mounting on a rotatable shaft, said anvil head having a peripheral surface and an axis of rotation which is coaxial with the axis of rotation of said shaft;
- die blanket means mounted with respect to said anvil head such as to permit both longitudinal and transverse relative movement between said peripheral surface of said anvil head and said die blanket means;
- and
- means cooperating with said anvil head and said die blanket means for effecting said transverse relative movement between said peripheral surface of said anvil head and said die blanket means.
1 more element
A rotary die cutting anvil comprising:
- a generally cylinderical anvil head having an axis of rotation and a coaxial peripheral, cylinderical surface;
- a die blanket frictionally mounted on said peripheral surface for rotation therewith and for permitting slideable displacement of said blanket with respect to said surface in a transverse direction parallel to said axis;
- and
- means for moving said die blanket with respect to said anvil head in said transverse direction in response to relative rotational movements of said die blanket with respect to said head.
1 more element
Dependencies are inferred from the claim text.