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Cesspool

  • US 5,249,398 A
  • Filed: 11/14/1991
  • Issued: 10/05/1993
  • Est. Priority Date: 11/19/1990
  • Status: Expired due to Term
First Claim
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1. Cesspool, including an upwardly open cup (16) and an inlet member (7) protruding thereinto from above in such a way that water (17) flowing through said inlet member (7) and through said cup (16) can pass into a drainage system to which the cesspool (1) is connected and whereby water (17) in said cup (16) forms a first odor lock between the drainage system and the inlet member (7), said cup (16) being movably mounted relative to a seat (19) and cooperating with at least one power generating means (20) for bringing said cup (16) into close odor sealing engagement with said seat (19) such that said cup (16) and seat (19) with each other define a second odor lock if the force applied by said water (17) to said cup (16) falls below a given value, said power generating means (20) being mounted such that it with a successively decreasing load thereon, resulting from a successively decreasing force applied by said water (17) to said cup (16), presses said cup (16) against said seat (19) with a successively increasing pressure, means mounting said cup (16) for movement relative to said seat (19) so that waste water rising in said drainage system can move said cup (16) towards said seat (19) and bring it to close engagement with said seat (19) or, if said cup (16) already engages said seat (19), can increase its engagement pressure against the seat (19) to prevent the waste water from flowing from the drainage system into said cup (16), said cup (16) having a cambered bottom (23) against which waste water rising from below said cup may press to urge said cup upwardly toward said seat (19).

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