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US 2022/0126227 A1Published application
Gasket and frame assembly for air filter
AssigneeBaldwin Filters, Inc.
InventorsTimothy L. Krull, Levi William Dexter
Life of this patent
Estimating the term…
Abstract
An air filter element and air filter system are provided. The filter element has an annular gasket that has multiple portions. A first portion provides axial sealing while a second portion provides only radially sealing. The filter element includes a frame with a radial abutment for engagement with a tooth on a filter housing for providing lateral biasing to the portion of the gasket that provides radial sealing.
Claims21
A filter element for use in a filter housing having a first housing seal interface that surrounds a storage cavity, the filter element comprising:
- filter media;
- a frame attached to the media;
- and
- a gasket secured to the frame, the frame being more rigid than the gasket, the gasket including a filter element seal interface that surrounds the filter media and is configured to mate with the first housing seal interface, the gasket including a first portion providing an axial seal surface forming part of the filter element seal interface and a second portion providing a radial seal surface forming part of the filter element seal interface.
1 more element
A filter element, comprising:
- a. a frame having an inlet panel, two side flaps, and a slot:
- i. the inlet panel having an annular surface surrounding an inlet opening, the annular surface having exterior and interior edges,
- ii. the two side flaps being attached along opposite interior edges of the inlet panel, and
- iii. the slot located through one side of the annular surface between the interior and exterior edges of the inlet panel;
- b. an outlet grate having a base plate and two side plates, the two side plates attached along opposite edges of the base plate, and the exterior surfaces of the two sides plates adhesively attached to the interior surfaces of the side flaps of the frame such that the base plate and the inlet panel are disposed at opposite ends of the filter element;
- c. a filter media disposed within the frame and the outlet grate;
- d. a gasket attached to the annular surface of the inlet panel, the gasket formed such that the slot in the annular surface is uncovered as well as the portion of the annular surface between the slot and the exterior edge of the annular surface is uncovered, and the gasket having a raised portion between the slot and the interior edge of the annular surface.
4 more elements
An air filter system, comprising:
- a. a housing body having,
- i. an inlet and an outlet in fluid communication;
- ii. an annular seal surface extending radially outward from the housing body at the inlet of the housing body, the annular seal surface having an outer lip at an outer edge of the annular seal surface;
- and
- iii. a housing tooth extending from the annular seal surface proximate an inner edge of the annular seal surface upward in a direction substantially perpendicular to the annular seal surface;
- b. a filter element having,
- i. a frame having an inlet panel and a slot:
- 1. the inlet panel having an annular surface surrounding an inlet opening, the annular surface having exterior and interior edges, and
- 2. the slot located through one side of the annular surface between the interior and exterior edges of the inlet panel;
- and,
- ii. a gasket attached to the annular surface of the inlet panel, the gasket formed such that the housing tooth extends through the slot in the annular surface, and the gasket having a raised portion between the slot and the interior edge of the annular surface;
- and,
- c. the filter element is situated within the housing body such that the gasket seals against the annular seal surface of the housing body, and such that the housing tooth is disposed through the slot in the annular surface, wherein the interaction between the frame and the housing tooth provides a lateral bias of the raised portion of the gasket radially into the housing body proximate the housing tooth.
10 more elements
Dependencies are inferred from the claim text.