Push-fitting
US11846375B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2022 |
| Grant date | Dec 19, 2023 |
| Priority date | — |
| Expiry date | May 16, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L43/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fitting including a housing defining a bore. The bore of the housing at the first open end including a first threaded section, a first annular shoulder located inboard from the first threaded section, and a second annular shoulder located inboard from the first annular shoulder. A grip ring having a plurality of flexible teeth is positioned within the housing and seated against the second annular shoulder, wherein the flexible teeth grip an exterior surface of the pipe or conduit. A bonnet is seated against the first annular shoulder and has an exterior threaded surface that mates with the first threaded section of the bore. A bonnet washer is positioned between the grip ring and the bonnet, and a pair of seal members are positioned between the bonnet washer and the bonnet that sealingly engage with the exterior surface of the pipe or conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.