Curb box for plastic valve

Details Curb box for plastic valve Curb box for plastic valve

1980-11-06

1982-05-25

Chambers, A. Michael

Fluid handling

With indicator, register, recorder, alarm or inspection means

Position or extent of motion indicator

137366, 251292, 251293, F16K 500, F16K 3100, F16K 3700

Patent

active

043311784

ABSTRACT:
The invention pertains to a synthetic plastic underground valve curb box utilizing a removable base which may be assembled to the primary curb box casing by a "snap-on" motion, and wherein the curb box supports and encompasses a synthetic plastic service valve and holds the valve in a firm manner preventing the valve from twisting or disorienting itself relative to the curb box. Further, the valve employs an operating head capable of accommodating the two primary types of operating wrenches, and the valve head cleans itself of foreign matter.

REFERENCES:
patent: 1181565 (1916-05-01), Block
patent: 3548864 (1970-12-01), Handley et al.
patent: 3601143 (1971-08-01), Glennon
patent: 3901271 (1975-08-01), Stewart
patent: 4030519 (1977-06-01), Zinn
patent: 4030696 (1977-06-01), Bake et al.
patent: 4036249 (1977-07-01), Perry, Sr. et al.

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