Rotor-type dispenser
US5402921A · kind A · utility
14Cited by
35References
13Claims
0Family size
Inventors
Key dates
| Filing date | Aug 10, 1993 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Aug 10, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/265
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An injection molded thermoplastic closure for a container having a generally planar wall and an integrally molded push-in tab within the area of the wall. The push-in tab has its boundary formed by discontinuities in the closure wall and the discontinuities are hermetically closed with a sealant applied locally in an arcuate pattern by rotation of the closure relative to a sealant applicator. A hinge line of the push-in tab has a construction that improves hinge integrity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.