Patent · US Expired

Filter relief valve assembly

US4127484A · kind A · utility

21Cited by
3References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 9, 1977
Grant dateNov 28, 1978
Priority date
Expiry dateSep 9, 1997

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01D27/106
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A filter relief valve assembly for a simple, easy to assemble use with filter structures of the common oil filter throw away type which will function to permit oil bypass of the filter element whenever the fluid pressure exceeds a predetermined value. The assembly unit is complete unto itself, but when assembled with the other filter components support and center one end of the filter element and also center and align an associated check valve in cooperation with the filter end closure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.