Punch
AssigneeI Holland Limited
InventorTrevor Martin Higgins
Life of this patent
Estimating the term…
Abstract
A punch (10, 110) for forming a tablet is described. The punch includes a cam surface (24, 124) which in use contacts a compression surface (62). The cam surface includes a substantially planar flat portion (14, 114), the flat portion having a non-circular shape when viewed along a direction (20) normal to the plane of the flat portion.
Claims19
A punch for forming a tablet, the punch including a shaft, a relatively enlarged head extending from the shaft, a cam surface being formed on the head, the cam surface which in use contacts a compression surface, the cam surface including a substantially planar flat portion, the flat portion having a non-circular shape when viewed along a direction normal to the plane of the flat portion, the flat portion being elongate, and having a length along a first axis which is greater than a length along a second axis, the first axis being aligned substantially along the direction of relative movement of the compression surface and the cam surface.
2-3. (canceled)
A punch according to 1, in which the length along the second axis is the minimum dimension of the flat portion.
(canceled)
(canceled)
Apparatus for forming tablets or the like, the apparatus including at least one punch and a compression surface, the punch including a shaft, a relatively enlarged head extending from the shaft, a cam surface being formed on the head, the cam surface which in use contacts the compression surface, the cam surface including a substantially planar flat portion, the flat portion having a non-circular shape when viewed along a direction normal to the plane of the flat portion, characterized in that the flat portion is elongate, and has a length along a first axis which is greater than a length along a second axis, the first axis being aligned substantially along the direction of relative movement of the compression surface and the cam surface.
19-22. (canceled)
Dependencies are inferred from the claim text.