USRE37162E1 - Hard surface cleaning appliance - Google Patents
Hard surface cleaning appliance Download PDFInfo
- Publication number
- USRE37162E1 USRE37162E1 US09/490,492 US49049200A USRE37162E US RE37162 E1 USRE37162 E1 US RE37162E1 US 49049200 A US49049200 A US 49049200A US RE37162 E USRE37162 E US RE37162E
- Authority
- US
- United States
- Prior art keywords
- hood
- appliance
- lower edge
- vacuum
- cleaned
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4036—Parts or details of the surface treating tools
- A47L11/4038—Disk shaped surface treating tools
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/02—Floor surfacing or polishing machines
- A47L11/03—Floor surfacing or polishing machines characterised by having provisions for supplying cleaning or polishing agents
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
- A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4036—Parts or details of the surface treating tools
- A47L11/4044—Vacuuming or pick-up tools; Squeegees
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/408—Means for supplying cleaning or surface treating agents
- A47L11/4088—Supply pumps; Spraying devices; Supply conduits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/30—Arrangements for collecting, re-using or eliminating excess spraying material comprising enclosures close to, or in contact with, the object to be sprayed and surrounding or confining the discharged spray or jet but not the object to be sprayed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
- B05B3/06—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet by jet reaction, i.e. creating a spinning torque due to a tangential component of the jet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
- B08B3/028—Spray guns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
- B08B2203/0229—Suction chambers for aspirating the sprayed liquid
Definitions
- This invention is concerned with the removal from a hard surface, such as cement, of soils, such as gum, soda pop, candy and other foods and oil and grease drippings from motor vehicles.
- This invention significantly improves the capability of the cleaning appliance to remove substantially all of the loosened soil and cleaning fluid from the surface, thus reducing runoff of possibly hazardous materials.
- the improvement resides primarily in the construction of the hood covering the cleaning area and associated components.
- the hood has a depending wall in which vacuum passage means are formed.
- the bottom edge region of the hood wall carries a foramenous skirt which is adapted to contact the surface being cleaned.
- an inner shroud Positioned inside the hood is an inner shroud which cooperates with the hood in forming the vacuum passages.
- the lower edge of the shroud is elevated slightly above the surface to be cleaned to permit cleaning fluid and soil to be drawn outwardly beneath the lower edge of the shroud into the vacuum passages.
- the foramenous skirt permits a quantity of air to be drawn through the skirt into the vacuum passage thereby precluding cleaning fluid and soil from passing outwardly through or beneath the skirt and providing a moving air stream to carry the cleaning fluid and soil through the appliance and away from the surface.
- the vacuum passage means preferably includes a plurality of substantially upright passages in the hood. One-half of the upright passages are in communication with one semi-circular manifold passage and the other haft of the upright passages are in communication with a second semi-circular manifold passage.
- FIG. 1 is a perspective view of a hard surface cleaning appliance incorporating the invention
- FIG. 2 is a vertical sectional view through the surface contacting portion of the appliance
- FIG. 3 is an enlarged sectional view of a portion of the appliance in the region included in the encircled region 3 of FIG. 2;
- FIG. 4 is a horizontal sectional view taken from below as indicated by line 4 — 4 of FIG. 3;
- FIG. 5 is a diagrammatic illustration of the air flow pattern through the appliance.
- the appliance of this invention as illustrated in FIG. 1 comprises a cleaning head 11 which is manipulated by an operator by means of a handle 12 .
- Cleaning head 11 includes a dome-shaped hood 13 having a substantially cylindrical, depending side wall 14 .
- the cleaning head 11 preferably is equipped with a pair of rear mounted wheels 16 onto which the head can be tilted up and back for moving the appliance around when not actually in use.
- the head 11 may also have a caster mounted front wheel 17 carried on a leaf spring for supporting a portion of the weight of the head 11 during use.
- the basic function of the cleaning head 11 is to confine and remove from the surface to be cleaned spent cleaning fluid and loosened soil.
- the cleaning fluid is delivered to that surface by means of a rotatable spray assembly indicated generally by reference numeral 19 in FIG. 2 .
- Spray assembly 19 includes a pair of spray nozzles 21 carried at the ends of hollow arms 22 extending outwardly from a manifold rotatably mounted on a fluid delivery post 24 .
- Fluid delivery post 24 is connected to cleaning fluid supply line 26 extending up handle 12 to a manually adjustable metering valve 27 and an on/off control valve 28 .
- On/off control valve 28 is manipulated by the operator by a hand lever 29 near one of the handgrips 31 on handle 12 .
- Pressurized cleaning fluid which may simply be heated or unheated water or a solution of water and a cleaning agent, is delivered to on/off valve 28 by a flexible hose 32 connected to a source (not shown) of that fluid.
- Spray nozzles 21 are mounted on arms 22 at an angle to the vertical so that the reaction from the high speed jet of cleaning fluid issuing from the nozzles causes the spray assembly to rotate. This assures that the entire surface area under the head 11 receives a high pressure spray of cleaning fluid.
- Vacuum passage means in the hood 13 is designed to effectively perform this task.
- the vacuum passage means is illustrated in FIGS. 2 through 5 and is designated generally by reference numeral 33 .
- the vacuum passage means 33 can be perceived as being formed in the inner surface of the dome-shaped hood 13 .
- the inner surface of depending side wall 14 of the hood 13 has a plurality of upwardly extending ribs 34 formed thereon which separate a plurality of similarly shaped upright passages 36 .
- the inside surface of the top wall of the hood 13 is provided with a pair of semi-circular descending ribs 37 which form two semi-circular vacuum manifold passages 38 .
- One of the semi-circular manifold passages 38 is in communication with one-half of the upright passages 36 .
- the other semi-circular manifold passage 38 is in communication with the other half of the upright passages 36 .
- Shroud 40 Cooperating with the hood 13 in the formation of vacuum passages 36 and 38 is an inner shroud 40 .
- Shroud 40 is also dome-shaped and sized to fit tightly against ribs 34 and 37 on the inner surface of the hood. Suitable fasteners, such as bolts 41 can be used to hold the shroud 40 in the hood 13 .
- the vacuum passage means 33 through the hood 13 also includes a foramenous, depending annular skin 42 mounted on the outer surface of the lower end 43 of hood wall 14 .
- Foramenous skirt 42 is designed to contact the surface being cleaned and to support at least a portion of the weight of the appliance. Skirt 42 has, in addition, the functions of preventing the escape of cleaning fluid and soil from the appliance and admitting air to be drawn therethrough into the vacuum passages 36 and 38 .
- skin 42 may be formed of a variety of foramenous materials it is preferable constructed like an annular brush with a mass of closely packed fibers 44 carried in a split annular mounting ring 46 .
- Mounting ring 46 preferably abuts a retainer flange 47 on the outer surface of hood sidewall 14 and is held in place by means of a tab and screw tightening device 48 located at the split in the mounting ring.
- the mixture of air, cleaning fluid and soil is drawn out of the vacuum passage manifolds 38 through two flexible hoses 51 into hollow handle manifold 52 , up through the handle 12 to a connector 53 to which a flexible hose connects with a source of vacuum (not shown).
- the dual manifold vacuum passages 38 in the hood 13 insure that all of the upright vacuum passages 36 are adequately and evenly serviced to withdraw spent cleaning fluid and soil.
Landscapes
- Cleaning By Liquid Or Steam (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/490,492 USRE37162E1 (en) | 1996-04-01 | 2000-01-24 | Hard surface cleaning appliance |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/626,717 US5711051A (en) | 1996-04-01 | 1996-04-01 | Hard surface cleaning appliance |
US09/490,492 USRE37162E1 (en) | 1996-04-01 | 2000-01-24 | Hard surface cleaning appliance |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/626,717 Reissue US5711051A (en) | 1996-04-01 | 1996-04-01 | Hard surface cleaning appliance |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE37162E1 true USRE37162E1 (en) | 2001-05-08 |
Family
ID=24511537
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/626,717 Expired - Lifetime US5711051A (en) | 1996-04-01 | 1996-04-01 | Hard surface cleaning appliance |
US09/490,492 Expired - Fee Related USRE37162E1 (en) | 1996-04-01 | 2000-01-24 | Hard surface cleaning appliance |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/626,717 Expired - Lifetime US5711051A (en) | 1996-04-01 | 1996-04-01 | Hard surface cleaning appliance |
Country Status (1)
Country | Link |
---|---|
US (2) | US5711051A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020178529A1 (en) * | 2001-05-31 | 2002-12-05 | Geyer Robert A. | Brushless scrub head for surface maintenance |
US6659116B1 (en) * | 2000-06-26 | 2003-12-09 | Lam Research Corporation | System for wafer carrier in-process clean and rinse |
US20050277374A1 (en) * | 2004-06-14 | 2005-12-15 | Smith Terrance C | Dust containment device for surfacing machines |
US20070113368A1 (en) * | 2005-11-21 | 2007-05-24 | Faip North America, Inc. | Floor scrubber |
US20090260177A1 (en) * | 2008-04-21 | 2009-10-22 | Edward Richards | Hard surface cleaner |
US20100269860A1 (en) * | 2005-12-12 | 2010-10-28 | Triverus, Llc | Surface cleaning and recycling apparatus and method |
RU2601823C1 (en) * | 2015-05-22 | 2016-11-10 | Общество с ограниченной ответственностью "Рекорд-инжиниринг" | Localizing nozzle |
US10555657B2 (en) | 2003-05-14 | 2020-02-11 | Kärcher North America, Inc. | Floor treatment apparatus |
USD907868S1 (en) | 2019-01-24 | 2021-01-12 | Karcher North America, Inc. | Floor cleaner |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5991968A (en) * | 1997-07-11 | 1999-11-30 | Moll; Frank J. | High pressure cleaning and removal system |
DE19750283A1 (en) * | 1997-11-13 | 1999-05-20 | Hilti Ag | Suction device for hand-held tool device |
US6216312B1 (en) * | 1998-04-21 | 2001-04-17 | Aussie Red Equipment Pty. Ltd. | Cleaning apparatus |
US6189177B1 (en) * | 1998-11-17 | 2001-02-20 | Nlb Corp | Rotating fluid jet cleaning system for vertical walls |
US6052854A (en) * | 1998-12-16 | 2000-04-25 | E. I. Du Pont De Nemours And Company | Floor cleaning apparatus having a foam distributing device therein |
EP1027935A1 (en) * | 1999-02-10 | 2000-08-16 | Alto Danmark A/S | Cleaning tool |
US6240596B1 (en) * | 1999-09-09 | 2001-06-05 | Oreck Holdings, Llc | Dust shield apparatus for floor machines |
US6367109B1 (en) | 2000-02-10 | 2002-04-09 | E. I. Du Pont De Nemours And Company | Floor cleaning apparatus having a floating brush |
US6370728B1 (en) * | 2000-07-27 | 2002-04-16 | George M. Burns | Cleaning appliance |
EP1262246A3 (en) | 2001-06-01 | 2003-11-26 | Anton Jäger | Device for treating surfaces |
US20030062430A1 (en) * | 2001-09-28 | 2003-04-03 | Steam Brite Supply, Inc. | Mobile power washing system |
DE10206014A1 (en) * | 2002-02-14 | 2003-09-04 | Kaercher Gmbh & Co Kg Alfred | Floor cleaning device |
GB2408446A (en) * | 2003-09-19 | 2005-06-01 | S C Services Ltd | Surface washing device |
US7477551B2 (en) * | 2006-11-08 | 2009-01-13 | Texas Instruments Incorporated | Systems and methods for reading data from a memory array |
US20090032446A1 (en) * | 2007-08-01 | 2009-02-05 | Triwatech, L.L.C. | Mobile station and methods for diagnosing and modeling site specific effluent treatment facility requirements |
US9890508B2 (en) * | 2008-07-23 | 2018-02-13 | Annihilator Cleaning Equipment, LLC | Spill clean-up system and method |
FR2968019B1 (en) * | 2010-11-26 | 2013-09-27 | Daniel Perie Ets | ROAD MAINTENANCE VEHICLE EQUIPPED WITH A SUCTION DEVICE |
EP2817104B1 (en) * | 2012-02-20 | 2023-04-05 | Alfred Kärcher SE & Co. KG | Surface cleaning head and flow resistance element for a surface cleaning head |
US9586239B2 (en) | 2014-02-13 | 2017-03-07 | Donald E. Butler | Three wheel, mobile frame |
NL2020682B1 (en) * | 2018-03-29 | 2019-10-07 | R Van Vliet Holding B V | Surface cleaning device and cleaning process for cleaning a planar floor surface. |
US10858792B2 (en) | 2018-06-08 | 2020-12-08 | Annihilator Cleaning Equipment, LLC | Pavement marking cleaning system |
US11203031B2 (en) * | 2018-07-09 | 2021-12-21 | The United States Of America, As Represented By The Secretary Of The Navy | Portable and repositionable deposition material applicator enclosure and application system for applying deposition material on a substrate employing non-adherent deposition material waste removal and selective enclosure coupling and decoupling structures or systems employing a plurality of selective coupling forces |
CN109198862A (en) * | 2018-09-29 | 2019-01-15 | 南京信息职业技术学院 | A kind of spinning cleaning brush |
DE102020126791A1 (en) * | 2020-10-13 | 2022-04-14 | Mosmatic Ag | Surface cleaner with suction and simplified operation |
DE102020126790A1 (en) * | 2020-10-13 | 2022-04-14 | Mosmatic Ag | Surface cleaner with multiple uses |
CN220529917U (en) * | 2023-05-24 | 2024-02-27 | 派尼尔股份有限公司 | Multifunctional cleaning machine |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2220224A (en) * | 1936-12-19 | 1940-11-05 | Faber Ernst | Machine for operating on floors |
US3189930A (en) * | 1964-06-16 | 1965-06-22 | Jr Henry G Tuthill | Surface cleaning apparatus |
US3719966A (en) * | 1970-12-09 | 1973-03-13 | Contract Cleaning Co Pty Ltd | Combined floor-polisher and suction cleaner |
US4037290A (en) * | 1974-10-29 | 1977-07-26 | Enviro-Blast International | Vacuum cleaning device |
US4107816A (en) * | 1976-12-22 | 1978-08-22 | Babcock Kina Limited | Cleaning heads |
US4191589A (en) * | 1977-04-25 | 1980-03-04 | The John J. Sundheim Family Estate | Method and apparatus for cleaning carpets and surfaces using cleaning fluid |
US4377018A (en) * | 1981-06-24 | 1983-03-22 | Roto Cleaner, Inc. | Cleaning device for surfaces |
US5088151A (en) * | 1991-04-25 | 1992-02-18 | Advance Machine Company | Collection system for a floor polishing machine |
US5135015A (en) * | 1990-02-12 | 1992-08-04 | Young's Hovercover, Inc. | Pressurized fluid cleaning device |
US5388305A (en) * | 1993-09-17 | 1995-02-14 | Surtec, Inc. | Vacuum buffer |
US5428863A (en) * | 1991-03-21 | 1995-07-04 | Ovidiu Tanasescu | Water suction mechanism |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5035015A (en) * | 1988-03-28 | 1991-07-30 | Maietta Linda S | Infant furniture |
-
1996
- 1996-04-01 US US08/626,717 patent/US5711051A/en not_active Expired - Lifetime
-
2000
- 2000-01-24 US US09/490,492 patent/USRE37162E1/en not_active Expired - Fee Related
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2220224A (en) * | 1936-12-19 | 1940-11-05 | Faber Ernst | Machine for operating on floors |
US3189930A (en) * | 1964-06-16 | 1965-06-22 | Jr Henry G Tuthill | Surface cleaning apparatus |
US3719966A (en) * | 1970-12-09 | 1973-03-13 | Contract Cleaning Co Pty Ltd | Combined floor-polisher and suction cleaner |
US4037290A (en) * | 1974-10-29 | 1977-07-26 | Enviro-Blast International | Vacuum cleaning device |
US4107816A (en) * | 1976-12-22 | 1978-08-22 | Babcock Kina Limited | Cleaning heads |
US4191589A (en) * | 1977-04-25 | 1980-03-04 | The John J. Sundheim Family Estate | Method and apparatus for cleaning carpets and surfaces using cleaning fluid |
US4377018A (en) * | 1981-06-24 | 1983-03-22 | Roto Cleaner, Inc. | Cleaning device for surfaces |
US5135015A (en) * | 1990-02-12 | 1992-08-04 | Young's Hovercover, Inc. | Pressurized fluid cleaning device |
US5428863A (en) * | 1991-03-21 | 1995-07-04 | Ovidiu Tanasescu | Water suction mechanism |
US5088151A (en) * | 1991-04-25 | 1992-02-18 | Advance Machine Company | Collection system for a floor polishing machine |
US5388305A (en) * | 1993-09-17 | 1995-02-14 | Surtec, Inc. | Vacuum buffer |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6659116B1 (en) * | 2000-06-26 | 2003-12-09 | Lam Research Corporation | System for wafer carrier in-process clean and rinse |
US20020178529A1 (en) * | 2001-05-31 | 2002-12-05 | Geyer Robert A. | Brushless scrub head for surface maintenance |
US6896742B2 (en) | 2001-05-31 | 2005-05-24 | Tennant Company | Brushless scrub head for surface maintenance |
US10555657B2 (en) | 2003-05-14 | 2020-02-11 | Kärcher North America, Inc. | Floor treatment apparatus |
US20050277374A1 (en) * | 2004-06-14 | 2005-12-15 | Smith Terrance C | Dust containment device for surfacing machines |
US7056198B2 (en) | 2004-06-14 | 2006-06-06 | Harris Research, Inc. | Dust containment device for surfacing machines |
US20070113368A1 (en) * | 2005-11-21 | 2007-05-24 | Faip North America, Inc. | Floor scrubber |
US7770254B2 (en) * | 2005-11-21 | 2010-08-10 | Fna Ip Holdings, Inc. | Floor scrubber |
US8393049B2 (en) * | 2005-12-12 | 2013-03-12 | Triverus, Llc | Surface cleaning and recycling apparatus and method |
US20100269860A1 (en) * | 2005-12-12 | 2010-10-28 | Triverus, Llc | Surface cleaning and recycling apparatus and method |
US20090260177A1 (en) * | 2008-04-21 | 2009-10-22 | Edward Richards | Hard surface cleaner |
RU2601823C1 (en) * | 2015-05-22 | 2016-11-10 | Общество с ограниченной ответственностью "Рекорд-инжиниринг" | Localizing nozzle |
USD907868S1 (en) | 2019-01-24 | 2021-01-12 | Karcher North America, Inc. | Floor cleaner |
Also Published As
Publication number | Publication date |
---|---|
US5711051A (en) | 1998-01-27 |
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Legal Events
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FPAY | Fee payment |
Year of fee payment: 4 |
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Owner name: PROFESSIONAL CHEMICALS CORPORATION, COLORADO Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BMO HARRIS BANK N.A., SUCCESSOR TO HARRIS TRUST AND SAVINGS BANK;REEL/FRAME:041688/0188 Effective date: 20170322 |