Pipe coupling with teethed inserts, method of securing teethed inserts, and method of coupling piping
US9285060B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2009 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Jul 15, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L21/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A coupling for joining plan end pipe having a housing made from a casting with a pocket disposed in the casting. The pockets holds an insert that engages the plain end pipe, and the insert is secured to the housing without the use of machined features on the housing or the use of additional components or adhesives to secure the insert to the housing. In a preferred embodiment, each insert is disposed in a pocket on the inner surface of the coupling assembly, with projections extending from the inner surface disposed within cavities on opposing sides of each insert to retain the insert within the pocket by obstructing the opening to the pocket. A preferred device and method of forming the projections is a press that deforms the projections to retain the inserts in the pockets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.