Patent US5134748A successfully refreshed from Google Patents.
US5134748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface cleaning device
Assignee: Technology Trust Inc
•
Filing: 1991-01-11
•
Granted: 1992-08-04
•
Expires: 2011-01-11
Abstract
Abstract A surface cleaning system which allows a sponge or other cleaning element to receive cleaning fluid transported by conduit from a pressurized cleaning fluid container and to apply the same to a surface to be cleaned. A vacuum source extracts the used cleaning fluid from the surface as the operator moves the cleaning element back and forth over the surface to be cleaned to remove the cleaning fluid and contaminants therefrom. The used cleaning fluid then travels by a conduit to a separation container where it is filtered and collected. The used cleaning fluid or fresh fluid can be pumped by a sump pump to a flush basin for rinsing or cleaning the cleaning element. The sump pump is controlled by a pressure valve located in the base of the flush basin. The complete system is typically operated on 115VAC and is portable by way of a push cart.
Inventors
- 👤 William R. Lynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:28
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4044; A47L11/29; A47L11/4013; A47L11/4016; A47L11/4022; A47L11/4027; A47L11/408; A47L11/4083; A47L11/4088
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
216 words
A surface cleaning device comprising: a scrubber head defining a cavity in a surface thereof with a dispensing inlet and removal outlet being provided within the cavity; a cleaning element positioned within the cavity and having a surface communicating with the dispensing inlet and the removal outlet; a supply of cleaning fluid from the supply of cleaning fluid to the dispensing inlet, through the cleaning element onto a surface to be cleaned as desired; means for removing the cleaning fluid along with any contaminants, removed form the surface to be cleaned, directly through the cleaning element; wherein said means for removing the cleaning fluid and the contaminants form the surface to be cleaned comprising a separation container connected to the removal outlet, via a conduit and a vacuum pump, connected to the separation container, for drawing used cleaning fluid and contaminants form the scrubber head into the separation container; said separation container is divided into top and bottom portions by a funnel, and a filter is provided in the top portion of the separation container, adjacent the funnel, for removing the contaminants from the used cleaning fluid as it enters the top portion of the separation container, and the used cleaning fluid, after passing through the filter, collects in the bottom portion of the separation container.
Claim 2
Dependent Claim
216 words
A surface cleaning device comprising: a scrubber head defining a cavity in a surface thereof with a dispensing inlet and removal outlet being provided within the cavity; a cleaning element positioned within the cavity and having a surface communicating with the dispensing inlet and the removal outlet; a supply of cleaning fluid from the supply of cleaning fluid to the dispensing inlet, through the cleaning element onto a surface to be cleaned as desired; means for removing the cleaning fluid along with any contaminants, removed form the surface to be cleaned, directly through the cleaning element; wherein said means for removing the cleaning fluid and the contaminants form the surface to be cleaned comprising a separation container connected to the removal outlet, via a conduit and a vacuum pump, connected to the separation container, for drawing used cleaning fluid and contaminants form the scrubber head into the separation container; said separation container is divided into top and bottom portions by a funnel, and a filter is provided in the top portion of the separation container, adjacent the funnel, for removing the contaminants from the used cleaning fluid as it enters the top portion of the separation container, and the used cleaning fluid, after passing through the filter, collects in the bottom portion of the separation container.
Claim 3
Dependent Claim
29 words
A surface cleaning device as claimed in claim 1 wherein the scrubber head has a center and the dispensing inlet is positioned adjacent said center of the scrubber head.
Claim 4
Dependent Claim
22 words
A surface cleaning device as claimed in claim 2 wherein the removal outlet is positioned adjacent the perimeter of the scrubber head.
Claim 5
Dependent Claim
58 words
A surface cleaning device as claimed in claim 1 wherein the supply of cleaning fluid comprises a supply container holding a quantity of cleaning fluid, and the means for supplying the cleaning fluid comprises a pressurized air source connected to the supply container for pressurizing the supply container and providing cleaning fluid to the cleaning element when desired.
Claim 6
Dependent Claim
33 words
A surface cleaning device as claimed in claim 1 wherein the separation container includes a one-way valve means, connected to the funnel, for preventing the used cleaning fluid from rising above the funnel.
Claim 7
Dependent Claim
18 words
A surface cleaning device as claimed in claim 5 wherein the device is supported on a moveable cart.
Claim 8
Dependent Claim
16 words
A surface cleaning device as claimed in claim 1 wherein the cleaning element is a sponge.
Claim 9
Dependent Claim
26 words
A surface cleaning device as claimed in claim 1 wherein a screen member is provided in the cavity between the removal outlet and the cleaning element.
Claim 10
Dependent Claim
30 words
A surface cleaning device as claimed in claim 1 wherein the cleaning element has an exterior surface shaped to conform closely to the shape of the surface to be cleaned.
Claim 11
Dependent Claim
55 words
A surface cleaning device as claimed in claim 1, wherein said device further includes a flushing basin defining a cavity shaped to receive at least the cleaning element of the scrubber head when cleaning of the cleaning element is desired, the flushing basin being connected to a source of fluid for cleaning the cleaning element.
Claim 12
Dependent Claim
49 words
A surface cleaning device as claimed in claim 10, wherein a sump pump is provided in the bottom portion of the separation container and connected, via an outlet of the separation container and conduit means, to the flushing basin to provide used cleaning fluid for cleaning the cleaning element.
Claim 13
Dependent Claim
31 words
A surface cleaning device as claimed in claim 11, wherein the flushing basin is provided with a switch to activate the sump pump and the means for removing the cleaning fluid.
Claim 14
Dependent Claim
41 words
A surface cleaning device as claimed in claim 12 wherein the means for removing the cleaning fluid draws the used cleaning fluid from the flushing basin through the cleaning element and into the separation container during cleaning of the cleaning element.
Claim 15
Dependent Claim
38 words
A surface cleaning device as claimed in claim 12 wherein the surface of the cleaning element remote from the cavity is contoured so that a major portion of that remote surface intimately engages the surface to be cleaned.
Claim 16
Dependent Claim
25 words
A surface cleaning device as claimed in claim 13 wherein the exterior surface of the cleaning element remote from the cavity has a curved profile.
Claim 17
Dependent Claim
38 words
A surface cleaning device as claimed in claim 1, wherein the surface of the cleaning element remote from the cavity is contoured so that the major portion of the remote surface intimately engages the surface to be cleaned.
Claim 18
Dependent Claim
25 words
A surface cleaning device as claimed in claim 16, wherein the surface of the cleaning element remote from the cavity has a substantially curved profile.
Claim 19
Dependent Claim
147 words
A surface cleaning device comprising: a scrubber head defining a cavity in a surface thereof with a dispensing inlet and removal outlet being provided within the cavity; a cleaning element positioned within the cavity and having a surface communicating with the dispensing inlet and the removal outlet; a supply of cleaning fluid; means for supplying the cleaning fluid form the supply of cleaning fluid to the dispensing inlet, through the cleaning element onto a surface to be cleaning, as desired; means for removing the cleaning surface along with any contaminants, removed form the surface to be cleaned, directly through the cleaning element; and a flushing basin defining a cavity shaped to receive at least the cleaning element of the scrubber head when cleaning of the cleaning element is desired, the flushing basin being connectable to a source of cleaning fluid for cleaning the cleaning element when desired.
Claim 20
Dependent Claim
147 words
A surface cleaning device comprising: a scrubber head defining a cavity in a surface thereof with a dispensing inlet and removal outlet being provided within the cavity; a cleaning element positioned within the cavity and having a surface communicating with the dispensing inlet and the removal outlet; a supply of cleaning fluid; means for supplying the cleaning fluid form the supply of cleaning fluid to the dispensing inlet, through the cleaning element onto a surface to be cleaning, as desired; means for removing the cleaning surface along with any contaminants, removed form the surface to be cleaned, directly through the cleaning element; and a flushing basin defining a cavity shaped to receive at least the cleaning element of the scrubber head when cleaning of the cleaning element is desired, the flushing basin being connectable to a source of cleaning fluid for cleaning the cleaning element when desired.
References Cited (Backward Citations)
US2506077A
Cited
US3173164A
Cited
US3431582A
Cited
US3538535A
Cited
US3591889A
Cited
US4170805A
Cited
US4123818A
Cited
US4161802A
Cited
US4437203A
Cited
US4833752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-08-04 | 1996-02-03 | 1996-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-04 | 2000-02-03 | 2000-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-04 | 2004-02-03 | 2004-08-04 | $7700.00 | Window Closed / Lapsed |