Drum closure assembly
US4305535A · kind A · utility
26Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1980 |
| Grant date | Dec 15, 1981 |
| Priority date | — |
| Expiry date | Sep 19, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2543/00796
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An improved drum closure assembly which includes a ring member and a cover member, the cover member being cooperatively sized for a fitted, overlapping relationship with the ring member. The ring member comprises outer and inner ring portions which are angularly displaced from parallel to one another. The cover member includes a top cover member and an annular wall member designed to about the outer ring portion of the ring member and to seal the assembly when in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.