Press fitting
US7293804B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2005 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Aug 28, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L33/2078
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A press fitting includes a pipe connector, a nipple, a check ring, a sealing ring, a pressure sleeve. The pressure sleeve is locked within the check ring, which has an inlet groove, a positioning annular groove connected with the inlet groove, and the positioning annular groove has larger internal diameter than that of the inlet groove. The pressure sleeve has an extension section on its end, and the dimension of the external diameter of the larger-diameter end of the extension section is between the dimension of the internal diameter of the inlet groove of the check ring and that of the internal diameter of the positioning annular groove of the check ring. The press fitting involves good coaxiality between the pressure sleeve and the check ring, good fixity of the pressure sleeve, and can be operated easily and utilized widely in industrial applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.