Filter configuration
AssigneeDana Corporation
InventorsRoland Vann Lanier, Jr., Gregory Keith Rhyne
Life of this patent
Estimating the term…
Abstract
In a filter element, such as an air filter element used for filtering engine air or cabin air in vehicles, a pleated filter media is disposed within a plastic frame and retained therein by the same material which is used to form a gasket for sealing with a housing in which the filter element is mounted. The gasket is formed of polyurethane foam or any other flexible sealing material such as plastisol or silicone and is cast molded around the outer periphery of the frame over a plurality of interlocking tabs. The seal is therefore mechanically locked to the frame as well as being adhered to the frame.
Claims18
A filter element for mounting in a filter housing, the filter element comprising:
- a frame having an extent defining a space of a selected area and shape, the frame having a first side and a second side, the second side being open and having inwardly extending support surfaces extending from an outer wall surface of the frame and the first side defining an opening corresponding to the selected area and shape, the first and second sides having parallel extents;
- laterally extending flanges projecting outwardly from the frame in a direction parallel to the extent of the first and second sides of the frame;
- pleated filter media configured as a continuous block having an area and shape complementing that defined by the frame and being received in the frame, the pleated filter media abutting the inwardly extending support surfaces;
- and
- a sealing gasket of sealing material molded around the outer wall surface of the frame and over the laterally extending flanges, the sealing gasket having an overlapping lip portion extending past the inner periphery of the first side of the frame and overlying a peripheral portion of the pleated filter media to adhere the pleated filter media in the frame and to provide a gasket and peripheral mounting surface for retaining the filter element within a housing, the sealing gasket having portions beneath the lip and extending between the pleats to seal the edges of the filter media to ensure that fluid being filtered passes through the filter media.
Dependencies are inferred from the claim text.