Sheet driver for use in a drug dispenser
First Claim
1. A spool for winding up a tape comprising a rotatable part for rotating the spool, a hub part mounted to the rotatable part for rotation therewith to wind the tape up thereon, a biasing mechanism for biasing the hub part to rotate relative to the rotatable part to a first rotary position, and a fault indicator for indicating a fault in the tape when the hub part is in the first rotary position on the rotatable part, andwherein the rotatable part has an axis of rotation and wherein the hub part is mounted co-axially to the rotatable part so as to be rotatable relative thereto about said axis.
1 Assignment
0 Petitions
Accused Products
Abstract
A sheet driver for use in a drug dispenser where the sheet driver includes a shaft with a shaft cavity co-axial with a rotational axis of the shaft and a hub that defines a hub aperture, where within the shaft cavity there is an indicator pin having a side member and an indicator pin head that may project through the hub aperture, where within the shaft cavity there is a spring for biasing said indicator pin out of the shaft cavity, and where an engagement member may selectively engage said side member of the indicator pin to prevent movement of the engagement member upon the occurrence of an fault condition of the sheet driver.
-
Citations
10 Claims
-
1. A spool for winding up a tape comprising a rotatable part for rotating the spool, a hub part mounted to the rotatable part for rotation therewith to wind the tape up thereon, a biasing mechanism for biasing the hub part to rotate relative to the rotatable part to a first rotary position, and a fault indicator for indicating a fault in the tape when the hub part is in the first rotary position on the rotatable part, and
wherein the rotatable part has an axis of rotation and wherein the hub part is mounted co-axially to the rotatable part so as to be rotatable relative thereto about said axis.
Specification