Swimming pool chlorinator with adjustable slits

Liquid purification or separation – Structural installation – Closed circulating system

Reexamination Certificate

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Details

C210S205000, C422S266000, C422S269000, C137S268000

Reexamination Certificate

active

06221244

ABSTRACT:

BACKGROUND OF THE INVENTION
1) Field of the Invention
The subject matter of this invention pertains to a device for introducing a chemical into a pool of liquid and more particularly to a chlorinator for a swimming pool.
2) Description of the Prior Art
In order to keep a swimming pool sanitary and to keep algae from growing within the swimming pool, it is necessary to add chlorine on a regular basis to the swimming pool water. The vast majority of swimming pool chlorinators are designed to supply chlorine on an automatic basis by adding chlorine over a period of time. One way in which chlorine can be added over a period of time is by utilizing of a tablet that is designed to dissolve at a certain rate. Normally, these tablets take a period of days in order to completely dissolve.
There are several different types of chlorinators that use dissolving tablets. One particular type of chlorinator comprises a floating dispenser where the dispenser floats around the swimming pool with the tablet or tablets contained within the dispenser and with the dissolving of the tablet to chlorinate the water of the swimming pool. However, one problem with a floating dispenser is that it commonly moves to one particular location of the swimming pool and stays in that location. The result is that the chlorine concentration within the swimming pool near the chlorinator is substantially greater than in other regions of the pool.
Another form of chlorinator is one that is integrated in conjunction with the water circulation heating and filtration system of the swimming pool. This type of chlorinator provides for injecting of controlled amounts of chlorinating chemicals into the circulating water and hopefully will achieve a more uniform distribution of chlorine throughout the pool. The chemicals again are often solid tablets or sticks of chlorine containing salts. This type of chlorinator causes the recirculating water to flow over the tablets or the sticks with the tablets or sticks to gradually dissolve. The chlorine concentration can be regulated by controlling the flow rate of the circulating water past the sticks or tablets. However, also with this type of chlorinator, even chlorination throughout the swimming pool is almost never achieved. There always seems to be at least one area of the swimming pool that is not receiving an adequate amount of chlorine.
SUMMARY OF THE INVENTION
One of the primary objectives of the present invention is to construct a spot chlorinator which can be used to apply chlorine to a particular area of a swimming pool with this type of chlorinator to be used in conjunction with other chlorinating systems such as a floating chlorinator or a chlorinator that is mounted directly in conjunction with the recirculating water.
The chlorinator of the present invention comprises a housing, generally cylindrical in configuration, having an exterior surface. Attached to that exterior surface is at least one suction cup. The exterior surface also includes a series of elongated slits. Between each directly adjacent pair of slits is a strip which is part of the wall surface of the housing. The width of each strip is precisely equal to the width of each slit. The housing includes an internal compartment within which is adapted to be located one or more chlorine tablets. A valve member in the form of a tubular sleeve is mounted within the internal chamber in a close conforming manner to the interior wall of the housing. The tubular sleeve is to be pivotally adjustable relative to the housing. The tubular sleeve also includes a similar pair of elongated slits which are the same size as the slits within the housing and are spaced apart the same distance. By pivoting of the valve member, the elongated slits within the housing can be located entirely open or can be completely closed or can be partially open depending upon the position of the valve member relative to the housing. Water is to be conducted through the housing within the internal chamber and then exteriorly of the housing thereby becoming chlorinated by the dissolving of the chlorine tablet or tablets.
Another objective of the present invention is to construct a swimming pool chlorinator which is simple in construction and can be manufactured relatively inexpensively and thereby sold to the ultimate consumer at an inexpensive price.
Another objective of the present invention is to construct a chlorinator which can be quickly and easily mounted on the sidewall surface of a swimming pool in any desired location within the swimming pool and also can be easily and quickly removed from the swimming pool when such is desired.


REFERENCES:
patent: 2332030 (1943-10-01), Toronto
patent: 3860394 (1975-01-01), Tepas, Jr. et al.
patent: 4798707 (1989-01-01), Thomas et al.
patent: 5350509 (1994-09-01), Nelson
patent: 5476116 (1995-12-01), Price et al.
patent: 5665227 (1997-09-01), Watt
patent: 6065690 (2000-05-01), O'Brien
patent: 0555600 (1993-08-01), None

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