Sealing washers for headed fasteners

Details Sealing washers for headed fasteners Sealing washers for headed fasteners

1986-03-27

1987-12-15

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277166, 277235R, 411542, F16J 1512, F16B 4300

Patent

active

047128020

ABSTRACT:
A sealing washer comprising an apertured metal backing member, a sealing member of resilient material abutting one face of the backing member forming a laminate therewith, and a shoulder of resilient material abutting the opposite face of the backing member and integral with the sealing member by a connecting portion extending axially through the aperture whereby, in use, a headed fastener may be assembled to the sealing washer with a shank of the fastener extending through the aperture, characterized in that, when considered in any plane including the axis of the aperture, the backing member includes an outer rimmed portion, an intermediate domed portion whose concave surface contacts the sealing member, and an inner depressed portion having first and second parts, the first part of the depressed portion extending more perpendicularly than the second part to the axis of the aperture for assisting in resisting axial spread of the shoulder during use of the sealing washer, and the second part of the depressed portion extending less perpendicularly than the first part to the axis of the aperture for assisting in resisting transverse spread of the shoulder during use of the sealing washer.

REFERENCES:
patent: 2982573 (1961-05-01), McKee
patent: 3519279 (1970-07-01), Wagner
patent: 3606357 (1971-09-01), Yonkers
patent: 3661046 (1972-05-01), Waud et al.
patent: 4280390 (1981-07-01), Murray

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