US5657509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum extractor
Assignee: Karcher Floor Care Inc
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Filing: 1995-05-09
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Granted: 1997-08-19
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Expires: 2015-05-09
Abstract
Abstract The vacuum extractor of the present invention is a self contained system for delivery of hot cleaning solution to a surface and vacuum removal of the spent solution either simultaneous with its application or at a later time through a vacuum system which deposits the spent cleaning solution in an upper housing. The extractor is configured to dump the cleaning solution from an upper housing which may be pivotally tipped upwardly from the front to enhance the draining of spent solution. The rear of the extractor of the present invention is configured to enable the extractor to be back up to and located adjacent a toilet bowl. The upper housing containing the spent solution is high enough to be pivoted over the toilet bowl and emptied, while still pivotally attached to the lower housing. The dump valve is positioned to be protected from damage from bumping surrounding structure. The point of pivotal movement of the upper housing is significantly rearward of the junction between the upper housing and the lower housing to enable the dump valve to be positioned further rearwardly upon tilting of the upper housing. The lower housing defines an inwardly spaced area to assist the extractor to be more closely positioned to a toilet bowl to facilitate a clean removal of the spent cleaning solution.
Inventors
- 👤 Gary L. Trautloff
- 👤 Montgomery A. Bisson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:51
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4013; A47L11/4016; A47L11/34; A47L11/4025; A47L11/4061
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
178 words
A cleaning system comprising: a lower housing having a cleaning fluid reservoir and a cleaning fluid outlet and wherein said lower housing includes an inwardly spaced surface area having a rearwardly extending structure; an upper housing pivotally engaged with said lower housing and having a vacuum inlet, and a vacuum outlet, and wherein said upper housing pivotally is supported from said rearwardly extending structure; a first blower having a suction side in communication with said vacuum outlet of said upper housing and an exhaust in communication with the atmosphere; a pump having an inlet connected to said cleaning fluid reservoir and an outlet connected to said cleaning fluid outlet; wheels, supporting said lower housing and enabling the rolling movement of said lower housing; a vacuum hose having a first end connected to said vacuum inlet of said upper housing and a second end; a cleaning fluid supply hose having a first end connected to said cleaning fluid outlet and a second end; and a cleaning wand connected to said cleaning fluid supply hose and to said vacuum hose.
Claim 2
Dependent Claim
178 words
A cleaning system comprising: a lower housing having a cleaning fluid reservoir and a cleaning fluid outlet and wherein said lower housing includes an inwardly spaced surface area having a rearwardly extending structure; an upper housing pivotally engaged with said lower housing and having a vacuum inlet, and a vacuum outlet, and wherein said upper housing pivotally is supported from said rearwardly extending structure; a first blower having a suction side in communication with said vacuum outlet of said upper housing and an exhaust in communication with the atmosphere; a pump having an inlet connected to said cleaning fluid reservoir and an outlet connected to said cleaning fluid outlet; wheels, supporting said lower housing and enabling the rolling movement of said lower housing; a vacuum hose having a first end connected to said vacuum inlet of said upper housing and a second end; a cleaning fluid supply hose having a first end connected to said cleaning fluid outlet and a second end; and a cleaning wand connected to said cleaning fluid supply hose and to said vacuum hose.
Claim 3
Dependent Claim
25 words
The cleaning system recited in claim 1 wherein said suction side of said first blower communicates with said upper housing through a vertically cylindrical riser.
Claim 4
Dependent Claim
28 words
The cleaning system of claim 2 wherein said vertically cylindrical riser includes an expanded bottom portion and wherein said first blower resides partially within said expanded bottom portion.
Claim 5
Dependent Claim
50 words
The cleaning system recited in claim 3 and further comprising a second blower having a suction and an outlet, and wherein said suction of said second blower is connected to said exhaust of said first blower and wherein said outlet of said second blower is in communication with the atmosphere.
Claim 6
Dependent Claim
38 words
The cleaning system recited in claim 1 wherein said upper housing includes a pair of rearwardly extending surface areas, and wherein said upper housing is pivotally connected to said rearwardly extending structure from said rearwardly extending surface areas.
Claim 7
Dependent Claim
35 words
The cleaning system of claim 5 and further comprising a latch, engageable between said upper housing and said lower housing to selectively prevent pivotal displacement of said upper housing with respect to said lower housing.
Claim 8
Dependent Claim
29 words
The cleaning system of claim 1 and further comprising a dump valve carried on said upper housing and adjacent said lower housing and overlaying said inwardly spaced surface area.
Claim 9
Dependent Claim
29 words
The cleaning system as recited in claim 1 wherein said upper housing includes a pair of integrally molded handles to enable said extractor system to be manually moved about.
Claim 10
Dependent Claim
32 words
A cleaning system including the cleaning system as recited in claim 8 and wherein said pair of integrally molded handles depend from a rearwardly extending structure forming an integrally molded cord wrap.
Claim 11
Dependent Claim
36 words
The cleaning system recited in claim 1 wherein said wheels further comprise a pair of rear wheels turning in fixed parallel planes, and a pair of front wheels mounted to said lower housing with swiveling casters.
Claim 12
Dependent Claim
39 words
The cleaning system recited in claim 1 and further comprising a heater unit, carried within said lower housing and having an input connected to said output of said pump, and having an output connected to said cleaning fluid outlet.
Claim 13
Dependent Claim
82 words
The cleaning system recited in claim 11 wherein said heater unit further comprises: housing defining an electrical inlet, a first aperture and a second aperture; an inlet pipe extending through said first aperture; an outlet pipe extending through said second aperture and having a fluid connection to said inlet pipe; an electric heating element carried by at least one of said inlet pipe and said outlet pipe, and having conductors connected to said electric heating element and extending through said electrical inlet.
Claim 14
Dependent Claim
42 words
The cleaning system recited in claim 12 and further comprising a controller, adjacent at least one of said inlet pipe and said outlet pipe, and in electrical connection with said electric heating element, to control the energization of said electrical heating element.
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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) | 2000-08-18 | 2001-02-17 | 2001-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-08-18 | 2005-02-17 | 2005-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-08-18 | 2009-02-17 | 2009-08-19 | $7700.00 | Window Closed / Lapsed |