Receptacles – Closures – Removable closure guided in rotary movement
Patent
1976-07-16
1978-02-07
Ward, Jr., Robert S.
Receptacles
Closures
Removable closure guided in rotary movement
220DIG33, 277206R, 277208, 16 2, 285110, 285232, 285345, B65D 4102
Patent
active
040722457
ABSTRACT:
A resilient O-ring seal for an annular space between a first radially inner surface and a second radially outer surface. The radial width of the annular space is less than the radial dimension of the O-ring. The O-ring includes an annular, radially outwardly facing groove defined by an axially inner lip, an axially outer lip, and a connecting web portion. The inner and outer lips both include axially inner and outer surfaces. The web portion includes a radially inwardly facing surface and a radially outwardly facing surface. As the O-ring is projected axially into the annular space, the axially inner surface of the inner lip contacts the second surface and is urged axially outwardly in a wiping action. The axially outward wiping movement of the inner lip causes a twisting or rolling of the ring such that the web radially inner surface is urged radially outwardly at its axially inner extent and is urged radially inwardly at its axially outer extent against the first surface. Such resilient deformation of the inner lip and web radially compressively seals the annular space. Further, the axially inner surface of the outer lip contacts the second surface as the O-ring is projected axially further into the annular space. The axially outer lip of the annular ring thereby provides direct compressive axial sealing of the annular space.
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Stant Manufacturing Company, Inc.
Ward, Jr. Robert S.
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