Title: Vacuum extraction cleaning machine

Abstract: A vacuum extraction cleaning machine adapted for coin operated applications. The cleaning machine comprises a remote cleaning tool for spraying cleaning solution upon an area to be cleaned and for extracting dirty cleaning solution through vacuum suction. Means located within the machine and coupled to the cleaning tool deliver vacuum and cleaning solution thereto. Used or dirty cleaning solution extracted by the tool is recovered and temporarily stored within a vacuum tank. Structure associated with the vacuum tank will automatically drain same when vacuum ceases at the end of the machine cycle. Injector valve means are provided to mix cleaning chemical with incoming fresh water to yield the necessary cleaning solution, and means are provided for coupling the machine to an external pressurized water source to facilitate operation.

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Inventors: Finley, Bill G. (Bradford, AR, US)
Finley, Terry L. (Jonesboro, AR, US)

Application Number: 947243
Filing Date: 1978-09-29
Publication_date: 1980-03-25
Assignee: Rug Specialist Inc. (Jonesboro, AR)
Primary Class(es): 15/314 15/321, 15/322, 15/339, 15/352, 15/353, 55/432
Other Classes:
US Patent Ref:

3173164	Mar, 1965	Congdon	15/314.
3705437	Dec, 1972	Rukavina et al.	15/314.
3780502	Dec, 1973	Dupre et al.	15/352.
3828390	Aug, 1974	Cater	15/321.
3910781	Oct, 1975	Bryant	15/314.
4036346	Jul, 1977	Livingston	15/327.

Other Refs:
Primary Examiner: Moore, Christopher K.
Assistant Examiner:
Attorney: Carver; Stephen D.