Method and apparatus for relieving hydrostatic pressure from und

Details Method and apparatus for relieving hydrostatic pressure from und Method and apparatus for relieving hydrostatic pressure from und

1994-06-15

1996-01-23

Friedman, Carl D.

Static structures (e.g., buildings)

Processes

Protection

521697, 527414, 405 52, 4295, 4507, E04B 100

Patent

active

054857074

ABSTRACT:
A fitting for relieving hydrostatic pressure under a swimming pool includes a sleeve and an associated removable plug, both of which have planar upper surfaces. Fittings in accordance with the invention are installed in the shallow end of a swimming pool and the plug is manually removed to relieve hydrostatic pressure.

REFERENCES:
patent: 1539617 (1925-05-01), Williston
patent: 3059243 (1962-10-01), Ross et al.
patent: 4276163 (1981-06-01), Gordon
patent: 4613169 (1986-09-01), Englehart
patent: 4620330 (1986-11-01), Izzi
patent: 4752979 (1988-06-01), Goachet
patent: 5036881 (1991-08-01), Southmayd
patent: 5115554 (1992-05-01), Fell
patent: 5209257 (1993-05-01), Baker
patent: 5224514 (1993-07-01), Taylor
patent: 5341523 (1994-08-01), Barnes

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