US 12,409,399 B2
Filter element locking mechanism
Darrell Lee Morehouse, III, Bedford, TX (US); Jon T. Immel, Chillicothe, IL (US); Jeffrey R. Ries, Metamora, IL (US); Stephen Ellis Oedewaldt, Mapleton, IL (US); and Philip Carl Spengler, Washington, IL (US)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Peoria, IL (US)
Filed on Apr. 26, 2023, as Appl. No. 18/139,462.
Application 18/139,462 is a division of application No. 16/799,356, filed on Feb. 24, 2020, granted, now 11,673,078.
Prior Publication US 2023/0264121 A1, Aug. 24, 2023
Int. Cl. B01D 29/15 (2006.01); B01D 35/30 (2006.01)
CPC B01D 29/15 (2013.01) [B01D 35/306 (2013.01); B01D 2201/0415 (2013.01); B01D 2201/291 (2013.01); B01D 2201/304 (2013.01); B01D 2201/305 (2013.01); B01D 2201/4007 (2013.01); B01D 2201/4076 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A filter element for a canister filter system comprising:
an annular filter media defining a longitudinal axis;
a tube arranged coaxially with the annular filter media;
a first open end joined to the tube and having formed therein a locking slot; and
a second open end joined to the tube opposite the first open end;
the locking slot having including an entrance portion extending in an axial direction, a ramp portion extending diagonally from the entrance portion in the axial direction and in a circumferential direction, a circumferential portion extending in the circumferential direction, and a detent notch extending in the axial direction from the circumferential portion and forming an axial extremity of the locking slot;
wherein the locking slot forms a necked throat between the circumferential portion and the detent notch; and
wherein the locking slot includes an axial throat surface and a slanted throat surface.