Method and appparatus for monitoring and controlling thermoplastic extruder output
US5122315A · kind A · utility
29Cited by
8References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 30, 1990 |
| Grant date | Jun 16, 1992 |
| Priority date | — |
| Expiry date | Apr 30, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2948/92961
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In a gear pump assisted thermoplastic extrusion system, the speed of operation of the gear pump is adjusted in relation to fluctuations in both the rate of product output from the system and the rate of material input to the system to precisely maintain a desired weight per unit length of the extruded product within close tolerances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.