Patent · US Active

Filter element with torsion lock and assembly

US11731065B2 · kind B2 · utility

1Cited by

116References

30Claims

0Family size

Assignee

Parker-Hannifin Corporation · US

Inventors

Ralle Rookey · Suffield, US
Justin R. Pribanic · Broad Brook, US
Jonathan D. Moore · Cwmbran, GB
Kevin B. Downs · Coventry, US
Wayne J. Dubé · Woodstock Valley, US
Steven J. Merritt · Kearney, US

Key dates

Filing date	Mar 26, 2019
Grant date	Aug 22, 2023
Priority date	—
Expiry date	Jul 3, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2201/4092
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A liquid filter in the form of a filter element or a filter cartridge provides torsion locking relative to a filter head when the housing of such filter is threaded onto a filter head. Many embodiments employ a filter that includes a nipple portion at a top end with the torsion lock detent provided outboard of the nipple portion or integrated into the nipple portion. Many embodiments employ a simplified shoulder transition region at the top end of a torsion locked filter element. Valve actuation and/or filter differentiation is used in some embodiments. Different torsion locking arrangements, deformable thread profiles and other liquid filter features are disclosed.

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