Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1979-02-02
1980-08-19
Smith, Robert I.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277198, 277236, F16J 1502
Patent
active
042180678
ABSTRACT:
There is disclosed a resiliently deformable metallic annular sealing ring comprising an inner element and at least one adjacent concentric element. Each of the elements has a radial cross sectional shape comprising a curvilinear member which encompasses at least a portion of a circle, e.g., at least 210.degree., and which terminates in two end portions which are free to move relative to each other. The inner element is at least partially encased by the adjacent element. The mid-point between the two end portions of the cross sectional shape of the inner element is located opposite the midpoint between the two end portions of the cross sectional shape of the adjacent concentric element. In accordance with one embodiment of the invention, the cross sectional shape of the elements are C-shaped and there is a gap between the end portions of the cross sectional shape. In accordance with another embodiment of the invention, the cross sectional shape of the inner element appears as a flat spiral and the part of the curvilinear member joining one of the end portions overlaps a part of the curvilinear member joining the other end portion.
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Pressure Science Incorporated
Smith Robert I.
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