Screw conveyor coupling apparatus
US5004096A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1989 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Apr 3, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G33/32
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Readily attachable and detachable coupling apparatus for coupling the drive shaft of a modular plastic screw conveyor with a power source is substantially concealed and protected by the modular plastic screw conveyor. Plastic screw conveyor modules define a non-circular axial aperture suitable for sliding over a matching or cooperating non-circular full length drive shaft. The drive shaft itself also includes an axial non-circular cross-section recess at one end for receiving a cooperating journal plug. The journal plug is secured in the drive shaft by a retainer which expands radially when compressed, and such that rotation of the journal plug causes rotation of the drive shaft which in turn causes rotation of the plastic screw conveyor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.