Sealing member and pipe joint
US12031645B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2021 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Apr 12, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L33/223
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An inner ring 4 of a pipe joint 1 includes a cylindrical body portion 5 having a communication hole 5a for providing communication between flow passage holes 2c and 8a of a joint body 2 and a tube 8, and an annular primary sealing portion 11 projecting from a radially inner side of an axially outer end portion of the body portion 5 toward an axially outer side and to be press-fitted into an annular primary sealing groove 2d formed on the joint body 2. The primary sealing portion 11 is formed so as to be tapered from an axially inner end thereof toward an axially outer end thereof in an axial cross-sectional view, and has a flat surface 11c extending from a radially outer end 11b of the axially outer end thereof toward the radially inner side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.