US 11,691,096 B2
Filter pulsation dampening device
Jeffrey R. Ries, Metamora, IL (US); Jon T. Immel, Chillicothe, IL (US); and Javier A. Rodriguez, Peoria, IL (US)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Peoria, IL (US)
Filed on Oct. 6, 2021, as Appl. No. 17/495,099.
Application 17/495,099 is a continuation of application No. 16/682,378, filed on Nov. 13, 2019, granted, now 11,207,619.
Prior Publication US 2022/0023781 A1, Jan. 27, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 35/15 (2006.01); B01D 35/157 (2006.01); B01D 27/08 (2006.01)
CPC B01D 35/157 (2013.01) [B01D 27/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A replaceable filter element that includes at least a partially cylindrical configuration and that defines a longitudinal axis, and a radial direction, the filter element comprising:
an annular filter media defining a central passage;
a center tube that is disposed in the central passage of the annular filter media that defines a central reservoir, and the annular filter media surrounds the center tube and the central reservoir;
a top open end joined to the center tube disposed along the longitudinal axis, the top open end including an opening allowing fluid to flow from the central reservoir to the outside of the filter element;
a bottom open end joined to the center tube opposite the top open end disposed along the longitudinal axis; and
a filter pulsation dampening device including
a filter element baffle extending longitudinally upwardly from the top open end or from the center tube of the filter element.