Seal with magnetic coating
AssigneeThe Standard Products Company
InventorZuoxing Yu
Life of this patent
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Abstract
A thin layer of a magnetizable coating is extruded or coextruded onto a external surface portion of a tubular sponge bulb seal for an automotive door or hatch. The coating is of a thickness, location on the seal and formulation to be selectively magnetized to provide a desired magnetic force level to optimize the balance between effective sealing and ease of door opening.
Claims10
A method of making a magnetic seal for an automotive vehicle comprising the steps of:
- (a) extruding an elastomeric sealing element having a generally U-shaped carrier for securement onto a flange and a tubular sealing element;
- (b) extruding onto a minor, limited surface area of said element, a thin layer of an elastomeric material having a magnetizable material dispersed throughout the thin layer;
- and
- (c) magnetizing said thin layer.
In combination with an automotive vehicle, a magnetic seal for sealing engagement against a metal surface of said vehicle, said seal having a carrier which secures said seal onto a flange of the vehicle and an elastomeric sealing element with an exterior surface intended to be juxtaposed against said vehicle metal surface and a thin layer of magnetic rubber extruded onto a minor portion of said exterior surface.
A magnetic seal for sealing engagement against a ferromagnetic surface, said seal having an elastomeric sealing element with an exterior surface intended to be juxtaposed against the ferromagnetic surface, a carrier for securement onto an associated mounting surface, and a thin layer of magnetic rubber extruded onto a minor, limited surface area of said exterior surface.
Dependencies are inferred from the claim text.