Cam drive system for an automated medication cart
US7952315B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 8, 2009 |
| Grant date | May 31, 2011 |
| Priority date | — |
| Expiry date | Jan 2, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61J7/0084
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The system includes a plurality of vertically spaced medication trays with a base assembly and a motor, responsive to computer commands, mounted on the base assembly. A drive shaft case member extends vertically from the base assembly. A cam assembly includes a plurality of spaced cam members, each cam member having concave portions and lobe portions on a peripheral surface thereof. A first drive clutch selectively engages the motor with both the drive shaft case member and the cam assembly for rotation of both in one direction, while a second drive clutch selectively engages the motor with just the cam assembly for rotation thereof in an opposing direction. The drive shaft case member has a cam follower assembly associated with each cam member, wherein one portion of the cam follower assembly engages the cam element and another portion engages an associated tray when the cam follower engages a selected concave portion on the cam element associated with the tray.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.