Patent US4466155A successfully refreshed from Google Patents.
US4466155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recycling cleaning apparatus
Assignee: Individual
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Filing: 1982-11-22
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Granted: 1984-08-21
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Expires: 2002-11-22
Abstract
Abstract An apparatus for cleaning hard surfaces and surface coverings such as rugs and upholstery material, consisting of a tank of cleaning fluid, an outlet line running to a cleaning head, a pump in connection with the outlet line, a vacuum motor with an inlet line recovering cleaning fluid through the cleaning head, filters in the tank in connection with the inlet and outlet lines, a stream cleaning the outlet filter and centrifuging the cleaning fluid in the tank separating out contaminants leaving a body of cleaning fluid substantially free of particulate matter to recycle whereby for example, a tank of six gallons of cleaning fluid can accomplish the effective cleaning effort for which would be required on the order of sixty gallons of uncycled cleaning fluid.
Inventors
- 👤 Dale L. Grave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:59
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4013; A47L11/4016; A47L11/4022; A47L11/29; A47L11/30; A47L11/4027; A47L11/4033; A47L11/408; A47L11/4083
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
144 words
A recycling cleaning apparatus, having in combination a cleaning fluid reservoir having a body of cleaning fluid therein, cleaning means applied to a cleaning area, a high pressure pump passing said cleaning fluid to said means, a vacuum motor having means in connection with and drawing a vacuum upon said cleaning means and recovering said cleaning fluid from said cleaning area into said reservoir, inlet filter means within said reservoir receiving and passing through said recovered cleaning fluid, an outlet filter within said reservoir through which is drawn recycled cleaning fluid, means cleaning the surface of said outlet filter, said last mentioned means comprises a fluid stream, means directing said stream to sweep the surface of said filter, and means passing said stream to said last mentioned means with sufficient velocity as to engage and cause said body of cleaning fluid to have motion.
Claim 2
Dependent Claim
144 words
A recycling cleaning apparatus, having in combination a cleaning fluid reservoir having a body of cleaning fluid therein, cleaning means applied to a cleaning area, a high pressure pump passing said cleaning fluid to said means, a vacuum motor having means in connection with and drawing a vacuum upon said cleaning means and recovering said cleaning fluid from said cleaning area into said reservoir, inlet filter means within said reservoir receiving and passing through said recovered cleaning fluid, an outlet filter within said reservoir through which is drawn recycled cleaning fluid, means cleaning the surface of said outlet filter, said last mentioned means comprises a fluid stream, means directing said stream to sweep the surface of said filter, and means passing said stream to said last mentioned means with sufficient velocity as to engage and cause said body of cleaning fluid to have motion.
Claim 3
Dependent Claim
173 words
A recycling cleaning apparatus, having in combination a housing having a reservoir, means movably supporting said housing, a body of cleaning fluid in said reservoir, an outlet line from said reservoir, a cleaning head carried by the outer end of said outlet line, a pump in connection with said reservoir driving said cleaning fluid from said reservoir through said outlet line to said cleaning head, an inlet line running from said cleaning head to said reservoir, a vacuum motor having means in connection with said reservoir drawing a vacuum upon said reservoir and said inlet line, a filter carried by said inlet line within said reservoir, an outlet filter carried upon said outlet line within said reservoir, a line extending into said reservoir bleeding a stream of said fluid from said outlet line, means in connection with said bleeding line directing said stream of fluid to sweep said outlet filter, and said last mentioned means causing said stream to impact upon and give motion to said body of cleaning fluid in said reservoir.
Claim 4
Dependent Claim
173 words
A recycling cleaning apparatus, having in combination a housing having a reservoir, means movably supporting said housing, a body of cleaning fluid in said reservoir, an outlet line from said reservoir, a cleaning head carried by the outer end of said outlet line, a pump in connection with said reservoir driving said cleaning fluid from said reservoir through said outlet line to said cleaning head, an inlet line running from said cleaning head to said reservoir, a vacuum motor having means in connection with said reservoir drawing a vacuum upon said reservoir and said inlet line, a filter carried by said inlet line within said reservoir, an outlet filter carried upon said outlet line within said reservoir, a line extending into said reservoir bleeding a stream of said fluid from said outlet line, means in connection with said bleeding line directing said stream of fluid to sweep said outlet filter, and said last mentioned means causing said stream to impact upon and give motion to said body of cleaning fluid in said reservoir.
Claim 5
Dependent Claim
14 words
The structure of claim 2, wherein said outlet filter comprises a rigid mesh structure.
Claim 6
Dependent Claim
23 words
The structure of claim 2, wherein said outlet filter is positioned within said reservoir to be within the body of cleaning fluid therein.
Claim 7
Dependent Claim
124 words
A recycling cleaning apparatus having in combination a portble housing having therein a reservoir of cleaning fluid, a cleaning means applied to a cleaning area, means passing said cleaning fluid to said cleaning means, a vacuum motor and connecting means drawing a vacuum upon said cleaning means recovering said cleaning fluid and passing the same to said reservoir, means associated with said connecting means filtering said recovered cleaning fluid, and means in connection with reservoir causing the body of cleaning fluid therein to have motion, said second mentioned means includes a filter carried within a body of cleaning fluid within said reservoir, and said last mentioned means causes cleaning fluid to wash said filter in causing said body of cleaning fluid to have motion.
Claim 8
Dependent Claim
124 words
A recycling cleaning apparatus having in combination a portble housing having therein a reservoir of cleaning fluid, a cleaning means applied to a cleaning area, means passing said cleaning fluid to said cleaning means, a vacuum motor and connecting means drawing a vacuum upon said cleaning means recovering said cleaning fluid and passing the same to said reservoir, means associated with said connecting means filtering said recovered cleaning fluid, and means in connection with reservoir causing the body of cleaning fluid therein to have motion, said second mentioned means includes a filter carried within a body of cleaning fluid within said reservoir, and said last mentioned means causes cleaning fluid to wash said filter in causing said body of cleaning fluid to have motion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-21 | 1988-02-20 | 1988-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-21 | 1992-02-20 | 1992-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-21 | 1996-02-20 | 1996-08-21 | $7700.00 | Window Closed / Lapsed |