Abstract A disposable swimming pool chlorinator in the form of a onepiece, blow-molded plastic container having a relatively large upper end portion defining a flotation chamber, a conically tapered intermediate section, and a depending neck having two rows of vertically spaced, hollow protuberances on its opposite sides and a fill opening in its lower end, closed by a heatsealed and tearable plug. A charge of chlorine tablets is sealed in the container to fill the latter to above the top of the neck, so that a selected number of the protuberances can be sliced off to form ports for admitting water into and out of the neck while the chlorinator floats in a pool, the container being imperforate above the open ports to trap air therein for flotation purposes and to limit the water level.
A floating chemical treatment device as defined in claim 1 in which said blisters are circular in vertical cross-section and define ports of predetermined cross-sectional areas when severed.
Claim 2
Dependent Claim
28 words
A floating chemical treatment device as defined in claim 1 in which said rows are arranged on diametrically opposed sides of said neck to provide through-flow of water.
Claim 3
Dependent Claim
26 words
A floating chemical treatment device as defined in claim 1 in which said cylindrical portion has a diameter at least twice the diameter of said neck.
Claim 4
Dependent Claim
31 words
A floating chemical treatment device as defined in claim 1 in which said charge fills said neck and said taper, and extends approximately to the lower end of said cylindrical portion.
Claim 5
Dependent Claim
29 words
A floating chemical treatment device as defined in claim 1 in which said plug has an annular flange overhanging said lower end of said neck and permanently sealed thereto.
Claim 6
Dependent Claim
42 words
A floating chemical treatment device as defined in claim 6 in which at least said flange is composed of relatively thin-walled, tearable plastic, and is heat-sealed to said lower end sufficiently tightly to cause tearing of said plug during attempted removal thereof.