Adjustable curling screw mechanism for a lip rolling machine
US6164949A · kind A · utility
9Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 2, 1998 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Dec 2, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C57/125
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A curling screw adjustment mechanism for changing the radial spacing of the curling screws of a lip curling machine forming a lip on a thermoformed plastic container such as a cup, in which the curling screws are each mounted on separate interlinked pivoted mounting plates which are moved in unison by adjustments of a threaded rod. The curling screws are also cooled by indirect contact with a cooling liquid circulated through separate aluminum arbors on which the stainless steel curling screws are mounted to allow changing the curling screws without spillage of coolant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.