Collapsible tube
US5634496A · kind A · utility
6Cited by
1References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1996 |
| Grant date | Jun 3, 1997 |
| Priority date | — |
| Expiry date | Jan 29, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D41/34
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention is an improved cap for a collapsible tube, particularly a tube having tamper evident means as is used on tubes having eye medications. The cap has a flexible substantially cylindrical wall which can be squeezed into an elliptical shape to permit the user to exert substantial force, by means of a "thumb screw" effect, to unscrew the cap from the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.