Cartridge bypass valve
US4815493A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1987 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Sep 17, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7938
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A three component bypass valve comprises molded nylon valve body and poppet elements and a retained spring. The valve body includes an annular valve head having a valve seat therein and an integral open sided spring housing in the form of a pair of spaced tracks joined by an end wall. The tracks and end wall serve as a poppet guide and spring retainer, the poppet having notches for mating support surfaces, while the open housing allows pivotal movement of the poppet for ready assembly or replacement of the poppet and spring. The valve head is externally threaded for placement of the valve in a threaded bore of a fluid filter and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.