Method for cleaning a piece of equipment
First Claim
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1. A method for providing a chemical composition useful to treat a piece of equipment comprising:
- (a) providing, at a time rate and at a controlled time, a diluent directly from a source of diluent;
(b) pumping, using a chemical composition pump, at a time rate and at a controlled time and independently of the flow of said provided diluent, said chemical composition directly from a chemical composition reservoir;
(c) contacting said piece of equipment with said provided diluent directly from said source of diluent and said pumped chemical composition directly from said chemical composition reservoir one or more times in a controlled sequence;
(d) automatically and independently controlling steps (a) and (b) using an electronic controller into which control information including times during which steps (a) and (b) are to occur is imputed through a keyboard, provided that said chemical composition pump, said chemical composition reservoir, said keyboard and said electronic controller are included in a portable system, and said source of diluent is not included in said portable system; and
(e) moving said portable system to another location and performing steps (a), (b), (c) and (d) with respect to another piece of equipment using said portable system in said another location.
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Abstract
An apparatus useful for providing a plurality of chemical compositions useful to clean an item, e. g., a tank, comprises a plurality of reservoirs each containing a concentrated form of a different chemical composition and each having an outlet through which the concentrate exits the reservoir; a subsystem for providing diluent to the concentrates which exit the reservoir to form the chemical compositions; and a control subsystem to automatically control the time during which each concentrate exits from each reservoir. A method for providing chemical compositions useful to clean an item is also disclosed.
42 Citations
19 Claims
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1. A method for providing a chemical composition useful to treat a piece of equipment comprising:
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(a) providing, at a time rate and at a controlled time, a diluent directly from a source of diluent; (b) pumping, using a chemical composition pump, at a time rate and at a controlled time and independently of the flow of said provided diluent, said chemical composition directly from a chemical composition reservoir; (c) contacting said piece of equipment with said provided diluent directly from said source of diluent and said pumped chemical composition directly from said chemical composition reservoir one or more times in a controlled sequence; (d) automatically and independently controlling steps (a) and (b) using an electronic controller into which control information including times during which steps (a) and (b) are to occur is imputed through a keyboard, provided that said chemical composition pump, said chemical composition reservoir, said keyboard and said electronic controller are included in a portable system, and said source of diluent is not included in said portable system; and (e) moving said portable system to another location and performing steps (a), (b), (c) and (d) with respect to another piece of equipment using said portable system in said another location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for providing a chemical composition useful to treat a piece of equipment comprising:
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(a) providing, at a time rate and at a controlled time, a diluent; (b) pumping, using a chemical composition pump, at a time rate and at a controlled time and independently of the flow of said provided diluent, said chemical composition from a chemical composition reservoir; (c) contacting said piece of equipment with said provided diluent and said pumped chemical composition one or more times in a controlled sequence by passing said provided diluent and said pumped chemical composition through a nozzle located in proximity to said piece of equipment; and (d) automatically and independently controlling the time during which steps (a) and (b) occur including imputing control information through a keyboard into an electronic controller, and automatically controlling, using said electronic controller, the movement of said nozzle independently of the flow rates of said provided diluent and said pumped composition. - View Dependent Claims (18, 19)
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Specification