Abstract A spin- or thread-on type oil filter whose filter housing which mounts within its interior space the filter element or cartridge comprises a cylindrical, thin sheet-metal shell or can body closed at one end by an integral dome-shaped end wall and at its other end by a separately fashioned closure plate assembly made up of a heavy-gauge metal base plate whose outer rim portion is planar and has diameter substantially equal to the inner diameter of the shell, and an annular sheet metal seaming cover which is lock-seamed along its outer peripheral or rim portion to the open-end wall portion of the shell and extends radially inwardly therefrom and in flush engagement with the under (outer) face of said base plate, the improvement comprising radially inwardly directed circumferential beads or formations rolled or otherwise provided in the cylindrical wall of the shell at locations immediately above (axially inwardly of) and below (axially outwardly of) the base plate, said circular beads serving as lock-shoulders which lock the base plate against movement in either axial direction relative to the shell and/or seaming cover.
Inventors
👤 Jesse A Baldwin
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-28 19:46
CPC Classifications
B; B01; B01D; B01D27/00; B01D27/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
209 words
An oil filter of the spin- or screw-on type comprising a cylindrical thin-metal filter shell closed at one end by an integral end wall and at its other end by a separately fashioned closure-plate assembly including a generally disc-form heavygauge metal base plate whose rim portion is planar and has outer diameter substantially equal to the inner diameter of said cylindrical shell and an annular thin-metal seaming cover having along its outer circular edge a cylindrically extending lock-seam connection with the open-edge portion of the shell, said thinmetal seaming cover extending radially-inwardly from said connection and lying substantially flush against the outwardly disposed (under) face of said base plate, and means for locking said heavy-gauge metal base plate to and in fixed position within the thin-metal cylindrical shell with a security such as insures that under a condition of severe vibration said filter shell and base plate assembly including the heavy-gauge base plate of the latter will vibrate with substantially the same amplitude of vibration, said means comprising two circumferential internal beads provided in the filter shell wall at locations thereof disposed closely above and closely below said base plate, said beads forming shoulders serving to hold the base plate firmly in fixed axial position within the filter shell.
Claim 2
Dependent Claim
209 words
An oil filter of the spin- or screw-on type comprising a cylindrical thin-metal filter shell closed at one end by an integral end wall and at its other end by a separately fashioned closure-plate assembly including a generally disc-form heavygauge metal base plate whose rim portion is planar and has outer diameter substantially equal to the inner diameter of said cylindrical shell and an annular thin-metal seaming cover having along its outer circular edge a cylindrically extending lock-seam connection with the open-edge portion of the shell, said thinmetal seaming cover extending radially-inwardly from said connection and lying substantially flush against the outwardly disposed (under) face of said base plate, and means for locking said heavy-gauge metal base plate to and in fixed position within the thin-metal cylindrical shell with a security such as insures that under a condition of severe vibration said filter shell and base plate assembly including the heavy-gauge base plate of the latter will vibrate with substantially the same amplitude of vibration, said means comprising two circumferential internal beads provided in the filter shell wall at locations thereof disposed closely above and closely below said base plate, said beads forming shoulders serving to hold the base plate firmly in fixed axial position within the filter shell.
Claim 3
Dependent Claim
23 words
An oil filter according to claim 1, wherein said cylindrically extending lock-seam is encompassed within the outer-circle line of the filter shell proper.
Claim 4
Dependent Claim
26 words
An oil filter according to claim 1, wherein said cylindrically extending lock seam substantially fills the radially outwardly facing concavity defined by said lower circumferential bead.