Holder for annular filter
Filter element having removable filter media member
Filter head with integral priming pump and valved bypass passage
Quick connect/disconnect oil filter
Fluid filter cartridge with replaceable filter element
High strength filter
Fluid filter assemblies
ApplicationNo. 855271 filed on 05/14/1997
US Classes:210/440, Inlet and outlet at same end210/441, Attached to casing210/450, Gasket within casing or spaced removable end members210/457With central pervious tubular receiver
ExaminersPrimary: Savage, Matthew O.
Attorney, Agent or Firm
Foreign Patent References
International ClassB01D 035/34
AbstractA spin-on filter unit for filtering liquids which may be readily disassembled and which utilizes a perforated center tube support disposed within a housing canister having both an open end and a closed end, a mounting head assembly which includes a bayonet connector mechanism adapted for releasable engagement with the open end of the housing canister, and a spring mechanism mechanism which acts upon the center support tube to urge the mounting head assembly bayonet connection mechanism into releasable engagement with the open end of the housing canister after rotation of the mounting head assembly about its center axis relative to the housing canister.