Retainer for a ball valve seat
US6948699B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Sep 27, 2002 |
| Grant date | Sep 27, 2005 |
| Priority date | — |
| Expiry date | Apr 10, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K5/0678
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A ball valve comprises: a valve body; a pair of valve end caps; a valve ball rotatably positioned within the valve body; a pair of valve seats, each valve seat being positioned between the valve ball and a respective valve end cap and engaged therewith; and at least one of i) an O-ring in an outer circumferential groove on a valve seat and compressively engaged with an inner surface of the valve end cap for retaining the valve seat within the end cap, ii) a circumferential groove provided on an inner surface of the valve end cap and positioned for receiving the O-ring positioned within the groove of the valve seat for retaining the valve seat within the end cap, and iii) an inwardly-extending circumferential flange provided on an inner surface of the valve end cap and positioned for retaining the valve seat within the end cap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.