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US 7,017,593 B2Granted
Pipe washing method and pipe washing apparatus
OwnerToshimi Hondainventor
Life of this patent
Estimating the term…
Abstract
A micro device in which a functional element can be moved between an operating position and a waiting position by the displacement of support means coupled to a substrate. The micro device has a cantilever structure in which one end of support means is made a fixed one fixed to the substrate and the other end to which an active element is provided is made a free end. A spring portion is provided to at least part of the support means, and thus the active element can be greatly displaced by a small stress.
Claims11
A pipe washing method, comprising the step of:
- intermittently or continuously driving carbon dioxide gas into a pipe to wash the interior thereof by the foaming action of the carbon dioxide gas dissolved in the water in the pipe, and charging a powder foaming agent into the pipe in order to obtain a predetermined effect on the foaming action of the carbon dioxide.
A pipe washing apparatus, comprising gas cylinders filled with carbon dioxide gas,
- a dispersing device for intermittently or continuously spouting the carbon dioxide gas supplied from the gas cylinders,
- a connection hose for causing the dispersing device to communicate with a pipe to be washed, and
- a foaming agent charger for charging powder foaming agent connected between the dispersing device and the connection hose.
Dependencies are inferred from the claim text.