Patent US3746170A successfully refreshed from Google Patents.
US3746170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid treatment apparatus
Assignee: Bio Lab Inc
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Filing: 1972-01-20
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Granted: 1973-07-17
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Expires: 1992-01-20
Abstract
Abstract An apparatus for treating a liquid which utilizes a container in which a solid treatment chemical is disposed and which is partially immersed in a reservoir of liquid maintained at a desired level and having openings above and below the liquid level is provided with means for adjusting the elevation of the container in the reservoir thereby to control the rate at which the liquid treating substance is dissolved and supplied from the container to the liquid.
Inventors
- 👤 M Bloom
- 👤 D Walz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:53
CPC Classifications
C; C02; C02F; C02F9/00; C02F9/20; C02F1/00; C02F1/68; C02F1/685; C02F1/688
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
344 words
A liquid treatment apparatus comprising a tank constituting a liquid-containing reservoir with a liquid inlet and outlet, said tank having means for controlling the level of liquid within the tank, said tank having a top end with at least one circular top opening, each top opening having a pair of vertical protrusions located on opposite sides of the opening in axial alignment to the opening, said vertical protrusions projecting downwardly into the tank and extending inwardly a short distance into the area defined by the opening, and means for supporting said vertical protrusions, and a liquid treatment container disposed within said top opening so that it is partially located below the liquid level in the tank, said liquid treatment container comprising means defining a container for receiving a supply of solid treatment material soluble in the liquid to be treated, said containter having a top end, bottom end smaller than said top end and a circular intervening side wall means, at least one circulation opening in the container positioned below the liquid level in the tank for the circulation of liquid from the tank through the container, and at least one vent opening in the container positioned above the liquid level in the tank to maintain the same liquid level in the container as in the tank, a plurality of pairs of vertical channels located on said side wall so that each channel is located on the opposite side of the container from the corresponding channel in the pair in such a manner as to engage the protrusion on the circular top opening, each channel commencing at the lowermost portion of the container with the greatest diameter and extending upwardly to an adjustment ledge which is located at the same elevation from the bottom of the container for each pair of channels, said adjustment ledges controlling the elevation of the container within the tank, the pairs of channels having adjustment ledges at various elevations from the bottom of the container so as to provide a means for adjusting the liquid level in the container.
Claim 2
Dependent Claim
344 words
A liquid treatment apparatus comprising a tank constituting a liquid-containing reservoir with a liquid inlet and outlet, said tank having means for controlling the level of liquid within the tank, said tank having a top end with at least one circular top opening, each top opening having a pair of vertical protrusions located on opposite sides of the opening in axial alignment to the opening, said vertical protrusions projecting downwardly into the tank and extending inwardly a short distance into the area defined by the opening, and means for supporting said vertical protrusions, and a liquid treatment container disposed within said top opening so that it is partially located below the liquid level in the tank, said liquid treatment container comprising means defining a container for receiving a supply of solid treatment material soluble in the liquid to be treated, said containter having a top end, bottom end smaller than said top end and a circular intervening side wall means, at least one circulation opening in the container positioned below the liquid level in the tank for the circulation of liquid from the tank through the container, and at least one vent opening in the container positioned above the liquid level in the tank to maintain the same liquid level in the container as in the tank, a plurality of pairs of vertical channels located on said side wall so that each channel is located on the opposite side of the container from the corresponding channel in the pair in such a manner as to engage the protrusion on the circular top opening, each channel commencing at the lowermost portion of the container with the greatest diameter and extending upwardly to an adjustment ledge which is located at the same elevation from the bottom of the container for each pair of channels, said adjustment ledges controlling the elevation of the container within the tank, the pairs of channels having adjustment ledges at various elevations from the bottom of the container so as to provide a means for adjusting the liquid level in the container.
Claim 3
Dependent Claim
54 words
A liquid treatment apparatus as defined in claim 1 and further characterized by the vertical protrusions in each top opening of the tank being an integral part of a hollow tubular element defining said top opening, said tubular element projecting downwardly into the tank and being attached to the top end of the apparatus.
Claim 4
Dependent Claim
29 words
A liquid treatment apparatus as defined in claim 2 and further characterized by the liquid treatment container having means for detachably engaging said bottom end to said side wall.
Claim 5
Dependent Claim
73 words
A liquid treatment apparatus as defined in claim 3, and further characterized by said liquid treatment container having pairs of channels arranged so that the elevation of the adjustment ledges from the bottom of the container increases step wise from the pair of channels with the adjustment ledges at the lowest elevation to the adjacent pair of channels and so on to the pair of channels with adjustment ledges at the highest elevation.
Claim 6
Dependent Claim
164 words
A liquid treatment container for disposition within a tank constituting a liquid-containing reservoir comprising means defining a container for receiving a supply of solid treatment material soluble in the liquid to be treated, said container having a top end, bottom end smaller than said top end and a circular intervening side wall, means at least one circulation opening in the container least one vent opening in the container positioned above said circulation opening a plurality of pairs of vertical channels located on said side wall means so that each channeL is located on the opposite side of the container from the corresponding channel in the pair, each channel extending upwardly to an adjustment ledge which is located at the same elevation from the bottom of the container for each pair of channels, the pairs of channels having adjustment ledges at various elevations from the bottom of the container so as to provide a means for adjusting the position of said container in such tank
Claim 7
Dependent Claim
164 words
A liquid treatment container for disposition within a tank constituting a liquid-containing reservoir comprising means defining a container for receiving a supply of solid treatment material soluble in the liquid to be treated, said container having a top end, bottom end smaller than said top end and a circular intervening side wall, means at least one circulation opening in the container least one vent opening in the container positioned above said circulation opening a plurality of pairs of vertical channels located on said side wall means so that each channeL is located on the opposite side of the container from the corresponding channel in the pair, each channel extending upwardly to an adjustment ledge which is located at the same elevation from the bottom of the container for each pair of channels, the pairs of channels having adjustment ledges at various elevations from the bottom of the container so as to provide a means for adjusting the position of said container in such tank
Claim 8
Dependent Claim
25 words
A liquid treatment container as defined in claim 5 and further characterized by means for detachably engaging said bottom end to said side wall means.
Claim 9
Dependent Claim
69 words
A liquid treatment container as defined in claim 6 and further characterized by said pairs of channels being arranged so that the elevation of the adjustment ledges from the bottom of the container increases step-wise from the pair of channels with the adjustment ledges at the lowest elevation to the adjacent pair of channels and so on to the pair of channels with adjustment ledges at the highest elevation.
Claim 10
Dependent Claim
179 words
Liquid treatment apparatus comprising a reservoir having an inlet and an outlet and normally containing liquid at a predetermined level, a top cover for said reservoir, at least one opening formed in said top cover, at least one hollw tubular element depending downwardly from said top cover and disposed in coincidental relation to said opening, at least one inwardly extending protrusion on said hollow tubular element, a container adapted for partial submersion in the liquid in said reservoir and constituting a repository for a liquid treatment chemical, a circulation opening in a wall of said container and located below the level of liquid in said reservoir, a vent in a wall of said container and located above the level of liquid in said reservoir, a plurality of vertically disposed channels formed on the exterior surface of the wall of said container, and an outwardly extending ledge formed in each of said channels, said ledges being disposed at different levels and being selectively engageable by said inwardly extending protrusion to determine the elevation of said container relative to said reservoir.
Claim 11
Dependent Claim
179 words
Liquid treatment apparatus comprising a reservoir having an inlet and an outlet and normally containing liquid at a predetermined level, a top cover for said reservoir, at least one opening formed in said top cover, at least one hollw tubular element depending downwardly from said top cover and disposed in coincidental relation to said opening, at least one inwardly extending protrusion on said hollow tubular element, a container adapted for partial submersion in the liquid in said reservoir and constituting a repository for a liquid treatment chemical, a circulation opening in a wall of said container and located below the level of liquid in said reservoir, a vent in a wall of said container and located above the level of liquid in said reservoir, a plurality of vertically disposed channels formed on the exterior surface of the wall of said container, and an outwardly extending ledge formed in each of said channels, said ledges being disposed at different levels and being selectively engageable by said inwardly extending protrusion to determine the elevation of said container relative to said reservoir.
References Cited (Backward Citations)
US3595786A
Cited
US3598536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |