WO2000042893A3 - Self-evacuating vacuum cleaner with a pump and a priming mechanism - Google Patents

Self-evacuating vacuum cleaner with a pump and a priming mechanism Download PDF

Info

Publication number
WO2000042893A3
WO2000042893A3 PCT/US1999/014109 US9914109W WO0042893A3 WO 2000042893 A3 WO2000042893 A3 WO 2000042893A3 US 9914109 W US9914109 W US 9914109W WO 0042893 A3 WO0042893 A3 WO 0042893A3
Authority
WO
WIPO (PCT)
Prior art keywords
pump
vacuum cleaner
priming mechanism
tank
self
Prior art date
Application number
PCT/US1999/014109
Other languages
French (fr)
Other versions
WO2000042893A2 (en
Inventor
Robert C Berfield
Original Assignee
Shop Vac Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shop Vac Corp filed Critical Shop Vac Corp
Priority to DE69919582T priority Critical patent/DE69919582T2/en
Priority to CA002347889A priority patent/CA2347889C/en
Priority to AU49578/99A priority patent/AU4957899A/en
Priority to EP99933538A priority patent/EP1143842B1/en
Publication of WO2000042893A2 publication Critical patent/WO2000042893A2/en
Publication of WO2000042893A3 publication Critical patent/WO2000042893A3/en

Links

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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0023—Recovery tanks
    • A47L7/0028—Security means, e.g. float valves or level switches for preventing overflow
    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • A47L5/365—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0023—Recovery tanks
    • A47L7/0038—Recovery tanks with means for emptying the tanks
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0042—Gaskets; Sealing means

Abstract

A vacuum cleaner has an electric motor driving an air impeller (68) for creating suction and a pump (120) which draws liquid material through an inlet tube (214) from the bottom of a tank (32) and expels it from the tank. A priming mechanism (246) is disposed in fluid communication with the outlet portion (234) of the pump. The priming mechanism (246) primes the pump (120) from the outlet side of the pump by collecting liquid received by the tank of the vacuum cleaner in the priming mechanism (246) and establishing a pressure differential across this collected liquid.
PCT/US1999/014109 1999-01-20 1999-06-23 Self-evacuating vacuum cleaner with a pump and a priming mechanism WO2000042893A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE69919582T DE69919582T2 (en) 1999-01-20 1999-06-23 Self-emptying vacuum cleaner with a pump and a suction device
CA002347889A CA2347889C (en) 1999-01-20 1999-06-23 Outlet priming self-evacuating vacuum cleaner
AU49578/99A AU4957899A (en) 1999-01-20 1999-06-23 Outlet priming self-evacuating vacuum cleaner
EP99933538A EP1143842B1 (en) 1999-01-20 1999-06-23 Self-evacuating vacuum cleaner with a pump and a priming mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/234,557 US6112366A (en) 1999-01-20 1999-01-20 Outlet priming self-evacuation vacuum cleaner
US09/234,557 1999-01-20

Publications (2)

Publication Number Publication Date
WO2000042893A2 WO2000042893A2 (en) 2000-07-27
WO2000042893A3 true WO2000042893A3 (en) 2002-10-03

Family

ID=22881867

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/014109 WO2000042893A2 (en) 1999-01-20 1999-06-23 Self-evacuating vacuum cleaner with a pump and a priming mechanism

Country Status (6)

Country Link
US (1) US6112366A (en)
EP (1) EP1143842B1 (en)
AU (1) AU4957899A (en)
CA (1) CA2347889C (en)
DE (1) DE69919582T2 (en)
WO (1) WO2000042893A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6440191B1 (en) * 2000-06-14 2002-08-27 Shop Vac Corporation Vacuum cleaner filter assembly
US6481049B1 (en) 2000-06-07 2002-11-19 Shop Vac Corporation Self-evacuating vacuum cleaner
US6378164B1 (en) 2000-07-18 2002-04-30 Shop Vac Corporation Pump inlet fitting
US6610952B2 (en) 2000-12-15 2003-08-26 Shop Vac Corporation Vacuum cleaner actuator switch
US6912757B2 (en) * 2002-12-12 2005-07-05 Shop-Vac Corporation Vacuum cleaner with continuous liquid pick-up
US20040200030A1 (en) * 2003-04-10 2004-10-14 Mark Baer Self-evacuating vacuum cleaner for cleaning ponds or swimming pools
US6860300B1 (en) * 2003-10-21 2005-03-01 Spokane Industries, Inc. Aircraft defueling system
US20090070953A1 (en) * 2007-04-04 2009-03-19 Orubor Integrated Technology Inc. Self-evacuating vacuum device
US8516650B2 (en) 2007-10-11 2013-08-27 Black & Decker Inc. Vacuum electronic water sense circuit
US20090123293A1 (en) * 2007-11-08 2009-05-14 Emerson Electric Co. Method and apparatus of driving multiple shafts in a wet/dry vacuum and liquid pump
US8153001B2 (en) * 2009-09-15 2012-04-10 Exair Corporation Liquid vacuuming and filtering device and method
US9591954B1 (en) 2015-08-19 2017-03-14 Shop Vac Corporation Vacuum cleaner switch assembly
ITUB20161215A1 (en) * 2016-03-01 2017-09-01 Solarys Srl INDUSTRIAL ASPIRATOR OF LIQUID SUBSTANCES WITH DEVICE FOR DETECTING THE FILLING LEVEL OF ITS TANK
US10869586B2 (en) 2016-11-17 2020-12-22 Karcher North America, Inc. Portable vacuum and related accessories
EP3549504B1 (en) * 2016-12-01 2023-03-22 Skybest Electric Appliance (Suzhou) Co., Ltd. Vacuum cleaner

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998031270A1 (en) * 1997-01-15 1998-07-23 Shop Vac Corporation Self-evacuating vacuum cleaner

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Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
WO1998031270A1 (en) * 1997-01-15 1998-07-23 Shop Vac Corporation Self-evacuating vacuum cleaner

Also Published As

Publication number Publication date
CA2347889C (en) 2004-11-30
US6112366A (en) 2000-09-05
WO2000042893A2 (en) 2000-07-27
CA2347889A1 (en) 2000-07-27
DE69919582T2 (en) 2005-07-14
EP1143842A3 (en) 2002-11-20
EP1143842A2 (en) 2001-10-17
EP1143842B1 (en) 2004-08-18
DE69919582D1 (en) 2004-09-23
AU4957899A (en) 2000-08-07

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