VACUUM SEWAGE SYSTEMS WITH CHECK VALVES AND CHECK VALVES FOR VACUUM SEWAGE SYSTEMS
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United States of America Patent
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Issued Date -
Jul 28, 2022
app pub date -
Jan 26, 2021
filing date -
Jan 26, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A vacuum sewage system includes a check valve having a body, a sealing member and a cover. The body includes a housing. The sealing member has a first section and a central section connected to the first section. The central section of the sealing member has a sealing surface. The cover has an interior chamber, a connector having a passageway in communication with the interior chamber, and a front wall having a central section. The central section of the front wall has a sealing surface. The central section of the sealing member is moveable from a first position in which the sealing surface of the sealing member is in contact with the sealing surface of the central section of the front wall of the cover to a second position in which the sealing surface of the central section of the sealing member is spaced apart from the sealing surface of the central section of the front wall of the cover.
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