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US 2010/0059052 A1Published application
Sheet driver for use in a drug dispenser
AssigneeGlaxo Group Limited
InventorsMichael Birsha Davies, Robert William Tansley
Life of this patent
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AssigneeGlaxo Group Limited
InventorsMichael Birsha Davies, Robert William Tansley
Estimating the term…
The present invention relates to a sheet driver for use in a drug dispenser including a drug carrier (100) having a plurality of pockets (102, 103, 104) for containing drug wherein said pockets are spaced along the length of and defined between first (106) and second (105) sheets secured to each other and separable by drivable pulling action, the sheet driver comprising a base (220); ascending from the base, a shaft (230) defining a rotational axis; on the base, a drive surface (225) for receipt of drive to rotate the base about the rotational axis; about the shaft, a torsion spring (240) defining first (242) and second (244) spring legs; mounting about the shaft and the torsion spring for rotation about the rotational axis, a hub (250) defining a hub surface for receipt of a sheet of the drug carrier. A first leg receiver (224) of the base receives the first spring leg of the torsion spring and a second leg receiver (252) of the hub receives the second spring leg of the torsion spring such that relative rotation of the base and the hub results in tensioning of the torsion spring. The shaft further defines a shaft cavity (232) co-axial with the rotational axis and the hub further defines a hub aperture (254), the sheet driver further comprising within said shaft cavity, an indicator pin (210) having a side member (212) and an indicator pin head that may project through said hub aperture; also within the shaft cavity, a spring (238) for biasing said indicator pin out of the shaft cavity; and provided to the hub, an engagement member (256) for selectively engaging said side member of the indicator pin to prevent movement thereof along the rotational axis in response to the relative positioning of the base and the hub.
A sheet driver for use in a drug dispenser including a drug carrier having a plurality of pockets for containing drug wherein said pockets are spaced along the length of and defined between first and second sheets secured to each other and separable by drivable pulling action, said sheet driver comprising
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.
A device comprising a tape, a tape advancing mechanism and a fault indicator adapted to protrude from the device on failure of the tape to indicate said failure.
A device comprising a tape, a tape advancing mechanism, and a fault indicator adapted to protrude from the device on failure of the tape to advance, wherein the tape advancing mechanism comprises 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, wherein the fault indicator is comprised in the spool for indicating a fault in the tape when the hub part is in the first rotary position on the rotatable part.
79-80. (canceled)
Dependencies are inferred from the claim text.