Screw conveyor coupling apparatus
US4958720A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1989 |
| Grant date | Sep 25, 1990 |
| Priority date | — |
| Expiry date | May 22, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G33/32
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Readily attachable and detachable 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 retained in the drive shaft by a resilient axial force such as provided by a spring under tension, 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.