Sump seal and extender

Details Sump seal and extender Sump seal and extender

1996-05-30

1998-11-10

Canfield, Robert

Static structures (e.g., buildings)

With entrance for persons or objects in horizontal or...

52 20, 52 3, 220254, 220319, 404 25, E02D 2914

Patent

active

058326731

ABSTRACT:
A seal and extender assembly which prevents surface water and other environmental liquids from inadvertently entering a sump, such as one used in a gasoline service station. The seal assembly includes an extender and a cover. The extender defines a channel and has a first end and a second end, the first end has a larger diameter than the diameter of the second end, the first end is secured to the sump adjacent the access port. The cover has a top surface and a perimeter surface, the top surface covers the access port and the perimeter surface secures to the second end of the extender.

REFERENCES:
patent: 4061434 (1977-12-01), Carrol
patent: 4085257 (1978-04-01), Smith
patent: 4842443 (1989-06-01), Argandona
patent: 5076456 (1991-12-01), Geyer
patent: 5257652 (1993-11-01), Lawrence
patent: 5333490 (1994-08-01), Webb
patent: 5360131 (1994-11-01), Phillips et al.
patent: 5490419 (1996-02-01), Webb

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