Filter with perforated end cap and pre-formed gasket capping perforations
AssigneeBaldwin Filters, Inc.
InventorsBenny Mathew Varghese, Timothy L. Krull, Steven J. Merritt, Jeffrey E.D. Rogers
Life of this patent
Estimating the term…
Abstract
An air filter, an air filter assembly, and method of installing the air filter into a housing of the air filter assembly are provided. The air filter includes an attachment portion and a lock tab. The lock tab is carried by and resiliently moveable relative to the attachment portion. The lock tab is located radially outward from the attachment portion and movable circumferentially about a central axis of the air filter. Another feature relates to using an end stop in a housing as a catch. Yet another feature relates to using a perforated end cap and capping such perforations with a housing seal.
Claims20
An air filter, comprising:
- a tubular ring of an air filter media extending about a central filter axis and having a first end and a second end, the tubular ring defining an internal volume;
- a first end cap sealingly coupled to the first end;
- a second end cap comprising an adhesive material and a support ring, wherein the support ring comprises an outer annular wall, an inner annular wall and an annular base wall interconnecting the inner annular wall and the outer annular wall to collectively define an annular potting well, with the adhesive material in the potting well sealingly coupled with the tubular ring, and wherein the annular base wall is perforated with apertures, and the adhesive material extending through the apertures;
- a preformed gasket ring supported on the support ring on an opposite side of the potting well capping the apertures to prevent or limit the adhesive material from being exposed on the opposite side of the potting well.
A filter, comprising:
- a tubular ring of a filter media extending about a central filter axis and having a first end and a second end, the tubular ring defining an internal volume;
- a first end cap sealingly coupled to the first end;
- a second end cap comprising an adhesive material and a support ring defining an annular potting well having apertures, with the adhesive material in the annular potting well sealingly coupled with the tubular ring, the adhesive material extending through the apertures;
- a preformed gasket ring capping the apertures to prevent or limit the adhesive material from being exposed on the opposite side of the potting well.
Dependencies are inferred from the claim text.