Closure apparatus for pipes and vessels
US5048876A · kind A · utility
40Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 2, 1989 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Nov 2, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L37/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A closure apparatus for pipes, vessels and the like includes a ring member which extends around the perimeter of a pair of flanges. The ring member includes a plurality of rollers that engage the nonmating sides of the flanges and impart a closing force thereon. The ring is rotatable between a locked position wherein the flanges are pressurized to an unlocked position wherein the rollers align with slots extending around the periphery of one or both of the flanges, whereby the flanges can be pulled apart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.