Crimp evident seal
US9188260B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2009 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Mar 3, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L2201/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An O-ring has a flange which includes a plurality of slots, such that, when inserted into an annular groove of a pipe fitting before crimping, the slots allow the flow of fluid therethrough, such that an installation would not pass pressure tests until such time as a proper crimp has been made. Such a design allows the use of conventional push-on pipe connections by utilizing a unique O-ring seal which works in conjunction with standard push-on crimp-type pipe fittings and conventional crimping tools for subsequently sealing the connection. The O-ring is either circular or elliptical in cross section and the slots define equally spaced annular segments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.