Central sealing pin cap
US5501377A · kind A · utility
11Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 4, 1994 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Jan 4, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/242
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A rotatable central sealing pin cap having a stationary part and a detachable pouring screw cap, each with engagable threads, an axial stop and a twist stop. A plurality of pre-assembly positions or intermediate positions can be defined. A twist stop is provided that limits rotational motion of the detachable pouring screw cap with respect to the stationary part beyond the completely open and the completely closed positions. At the same time, the detachable pouring screw cap is sealed to the stationary part to prevent an undesired backflow into the threaded region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.