Small material transfer system
US5785464A · kind A · utility
Inventors
Key dates
| Filing date | Jun 4, 1996 |
| Grant date | Jul 28, 1998 |
| Priority date | — |
| Expiry date | Jun 4, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/18
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A loading device primarily for injecting granular plastic material into molding or extrusion machines includes a tee chamber connected to a source of the material. A filter and screen are supported on a top plate interposed between the filter and the tee chamber. A baffle is located in the tee chamber to deflect the solid material to a sight glass assembly, while air and fines flow toward the screen and filter. A second or middle plate is inserted between the tee chamber and the sight glass assembly. A bottom plate supports the sight glass and is part of an end bell which includes a quick connect and disconnect sleeve for attachment to the associated machine. A plurality of support rods and threaded members secure the top plate to the middle or second plate, and the middle or second plate to the bottom plate. A level sensor is secured to a bracket fastened to two support rods such that the level sensor senses the level of material in the sight glass and controls a source of air carrying the material to the loading device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.