Controlled access vent for water storage unit

Details Controlled access vent for water storage unit Controlled access vent for water storage unit

2005-06-02

2009-06-16

Hepperle, Stephen M (Department: 3753)

Fluid handling

Systems

System with plural openings, one a gas vent or access opening

C137S591000, C220S745000

Reexamination Certificate

active

07546850

ABSTRACT:
A vented water storage system (16) is disclosed. A vent (62) is disposed within an elbow (38). A riser pipe (26) extends from the elbow (38) to a containment (18) having water (22) stored therein. The vent (62) includes an open end (66) that fluidly communicates with the riser pipe (26), and a closed end (70) that is located between a distally located open end (42) of the elbow (38) and the open end (66) of the vent (62). An access port (74) is included on a sidewall (64) of the vent (62) at a location within the elbow (38) that reduces the potential for being able to introduce a liquid into the open end (42) of the elbow (38) in a manner such that this liquid will reach the containment (18).

REFERENCES:
patent: 249918 (1881-11-01), Forster
patent: 1643924 (1927-09-01), Clark
patent: 2065429 (1936-12-01), Clapp
patent: 3123249 (1964-03-01), Gorand et al.
patent: 4924897 (1990-05-01), Brown
patent: 5236100 (1993-08-01), Shin
patent: 6575826 (2003-06-01), Myint

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