The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 1992
Filed:
May. 03, 1991
David D Gleason, Kalamazoo, MI (US);
Larry R Carter, Richland, MI (US);
P Timothy Frey, Delton, MI (US);
The Upjohn Company, Kalamazoo, MI (US);
Abstract
An apparatus for testing several physical properties of pharmaceutical powders, which apparatus includes a frame having a ram linearly movably supported thereon and driven from a microstepping rotary drive motor. The ram, through a first load cell, cooperates with a selected one of two different tablet supporting head assemblies which removably mount of the frame for respectively testing tablet hardness and tensile strength. The frame also mounts a powder flow test arrangement which includes a bed stationarily supported on the frame for receiving a layer of powder, and a sled which rests on the powder layer and is freely horizontal movable relative to the bed. The sled is coupled through a generally horizontal tension member to a second load cell which is mounted on the ram independently of the first load cell.