Pressure pumping valves and methods of making such valves
US10670153B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2015 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Aug 23, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for joining a valve member for use within a valve, the method including brazing a body portion having a head and a base, the base having a bore extending a depth therein, to a leg portion having a shaft, the shaft having a distal end, a proximal end opposite the distal end, and a plurality of legs extending radially and axially therefrom and away from the proximal end, the brazing including placing a braze material between the bore and the proximal end, inserting the proximal end into the bore such that a portion of an outer surface of the proximal end is adjacent to an inner surface of the bore, and heating at least the adjacent surfaces to a braze temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.