Gasket and flange connection structure for plumbing instrument using the same
US10907735B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2017 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Jul 26, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L2201/60
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gasket and flange connection structure for a plumbing instrument including a substantially annular core (30) coated with a coating part (31) and formed with annular seal surfaces (32) on both surfaces. These annular seal surfaces (32) are provided so as to be capable of making sealed contact with any of flange surfaces (20, 21, and 22) of a flat seat shape flange, a full-flat seat shape flange, and a grooved-shape flange for allowing shared use. Configured on outer peripheral sides of the annular seal surfaces (32) are extended mounting parts (33) having a plurality of different diameters in accordance with the outer diameters of the various flange surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.