Pliant media blasting device
OwnerWilliam R. Lynninventor
Life of this patent
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Abstract
The invention relates to a method and to a pliant particulate media device for the same which includes a supply of pliant blasting media, a medium for conveying the pliant blasting media from the supply and a discharge line. The supply is connected with a feed device that meters out a desired quantity of blasting media into a discharge line which conveys the blasting media to a discharge nozzle where it is discharged against a surface to be treated to achieve the desired treatment.
Claims6
A method of treating a contaminated surface with a plurality of discrete, individual particles of a pliant particulate blasting media capable of absorbing a contaminant from said surface, said method comprising the steps of:
- a) using a dry light resilient absorbent cellular material as the pliant particulate blasting media;
- b) pretreating the pliant particulate blasting media with a dry powder to increase the density and abrasiveness of said pliant particulate blasting media;
- c) rotating a rotatable wheel, having a plurality of tines, at a high rotational speed within a housing having a housing inlet and a housing outlet;
- d) conveying said pliant particulate blasting media, pretreated with a dry powder to increase the density and abrasiveness of said pliant particulate blasting media, from a storage container to said housing inlet;
- e) accelerating said plaint particulate blasting media via said plurality of tines of said rotating wheel;
- and
- f) discharging said accelerated pliant particulate blasting media from said housing outlet against the contaminated surface and absorbing contaminant from said surface with said absorbent cellular material.
A method of treating a contaminated surface with a plurality of discrete, individual particles of a pliant particulate blasting media capable of absorbing a contaminant from said surface, said method comprising the steps of:
- a) using a dry light resilient absorbent cellular material as the pliant particulate blasting media;
- b) pretreating the pliant particulate blasting media with a dry powder to increase the density and abrasiveness of said pliant particulate blasting media;
- c) supplying a flow of pressurized liquid to an inlet of a venturi;
- d) supplying said pliant particulate blasting media, pretreated with a dry powder to increase the density and abrasiveness of said pliant particulate blasting media, from a storage container to said venturi so that, during operation, the flow of the pressurized liquid draws said pliant particulate blasting media, pretreated with a dry powder, into the flow of pressurized liquid;
- e) mixing said pressurized liquid and said plaint blasting media, pretreated with a dry powder, together at an outlet of said venturi to form a pressurized liquid mixture thereof;
- and
- f) discharging said pressurized liquid mixture from the outlet of said venturi against the contaminated surface and absorbing contaminant from said surface with said absorbent cellular material.
A method of treating a contaminated surface with a plurality of discrete, individual particles of a pliant particulate blasting media capable of absorbing a contaminant from said surface, said method comprising the steps of:
- a) using a dry light resilient absorbent cellular material as the pliant particulate blasting media;
- b) pretreating the pliant particulate blasting media with a dry powder to increase the density and abrasiveness of said pliant particulate blasting media;
- c) mixing, in a mixing chamber, said pliant particulate blasting media comprising a dry light resilient absorbent cellular material pretreated with a dry powder to increase the density and abrasiveness of said media with a liquid to form a slurry thereof;
- d) conveying, via a pump, said slurry under pressure to an outlet;
- and
- e) discharging said slurry from said outlet against the contaminated surface and absorbing contaminant from said surface with said absorbent cellular material.
Dependencies are inferred from the claim text.