In-mold labeler--dual parison
US4498854A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 13, 1982 |
| Grant date | Feb 12, 1985 |
| Priority date | — |
| Expiry date | Oct 13, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1783
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
This relates to a pneumatic feed system for moving a labeler head of a labeling apparatus for depositing labels in mold halves of a blow molding apparatus. The relatively heavy labeler head must be rapidly accelerated and then rapidly decelerated and at the same time moved sufficiently so as to provide for a large number of back and forth cycles per minute. There is provided in association with compressible shock absorbers a pneumatic system including a high pressure supply and a low pressure supply together with throttle valves such that the gas in the unpressurized end of the cylinder is rapidly compressed near the end of the stroke to function as a shock absorber and further, the cylinder is of a much larger diameter than that required for moving the labeler head so as to permit for the rapid acceleration as well as the rapid deceleration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.