Extendable and retractable cleaning apparatus

Cleaning and liquid contact with solids – Apparatus – For work having hollows or passages

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Details

134172, 92 53, B08B 900

Patent

active

046467688

ABSTRACT:
An extendable and retractable cleaning apparatus includes a multi-stage extendable and retractable arm assembly formed of a plurality of cylindrical members assembled in a telescopic manner, an ejection nozzle provided at a tip end of the innermost cylindrical member of the arm assembly, a mount housing surrounding a substantially central portion of the arm assembly to rotatably support the arm assembly and a casing integrally formed at a base end of the outermost cylindrical member of the arm assembly to form a pressure chamber in cooperation with the assembly. A rotational driving device is provided within the housing for rotationally driving the arm assembly. A washing liquid feed hose is connected to the ejection nozzle. A compressed air feed pipe has one end mounted to the casing to communicate with the pressure chamber. A control device controls the amount and speed of extension and retraction of the arm assembly and includes a perforated metallic belt connected to a base end of the innermost cylindrical member.

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patent: 3768578 (1973-10-01), Russell, Jr.
patent: 3920084 (1975-11-01), Russell, Jr.
patent: 3973468 (1976-08-01), Russell, Jr.
patent: 4186911 (1980-02-01), Huet et al.
patent: 4225362 (1980-09-01), Sentell
patent: 4319864 (1982-03-01), Kaufeldt
patent: 4326317 (1982-04-01), Smith et al.
patent: 4466307 (1984-08-01), Kouno
patent: 4543697 (1985-08-01), Poncet

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