EP0620766B1 - Hochdruckreinigungsgerät - Google Patents

Hochdruckreinigungsgerät Download PDF

Info

Publication number: EP0620766B1
Authority: EP; European Patent Office
Prior art keywords: housing; pump; electric motor; cleaning device; pressure cleaning
Prior art date: 1991-08-14
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 - Lifetime

Application number

EP92917910A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP0620766A1 (de

Inventor

Robert Nathan

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Alfred Kaercher SE and Co KG

Original Assignee

Alfred Kaercher SE and Co KG

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.)

1991-08-14

Filing date

1992-08-13

Publication date

1995-11-15

1992-08-13 Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG

1994-10-26 Publication of EP0620766A1 publication Critical patent/EP0620766A1/de

1995-11-15 Application granted granted Critical

1995-11-15 Publication of EP0620766B1 publication Critical patent/EP0620766B1/de

2012-08-13 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

- 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
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/002—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour incorporating means for heating or cooling, e.g. the material 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
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
- 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
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/01—Spray pistols, discharge devices
- 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
- B08B2203/0235—Cooling the motor pump

Definitions

Such cooling is very effective, but it is not suitable for cleaning devices in which the motor has to be completely encapsulated against environmental influences. This is necessary, for example, if the electric motor and the pump are to be accommodated in a hand-held device which, for safety reasons, still has to work safely even when completely immersed in a liquid and which nevertheless must not endanger the user.
the invention is discussed using the example of a portable high-pressure cleaning device, but it can in principle also be used in other high-pressure cleaning devices in which an encapsulation of the electric motor is desired.
the housing 1 arranged between the spray lance 5 on the one hand and the handle part 4 on the other hand is designed as a completely closed housing, which has a sealed bushing 8 for a suction line 9 connected to the supply line 6 on its upper side and a likewise sealed bushing 10 for a to the spray lance on the opposite side 5 and leading to an outlet of the high-pressure cleaning device pressure line 11.
the pump 3 is inserted, which can be designed, for example, as a two-piston pump.

Landscapes

Cleaning By Liquid Or Steam (AREA)
Cooling Or The Like Of Electrical Apparatus (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)

EP92917910A 1991-08-14 1992-08-13 Hochdruckreinigungsgerät Expired - Lifetime EP0620766B1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
DE4126798		1991-08-14
DE4126798		1991-08-14
PCT/EP1992/001849 WO1993003865A1 (de)	1991-08-14	1992-08-13	Hochdruckreinigungsgerät

Publications (2)

Publication Number	Publication Date
EP0620766A1 EP0620766A1 (de)	1994-10-26
EP0620766B1 true EP0620766B1 (de)	1995-11-15

Family

ID=6438234

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP92917910A Expired - Lifetime EP0620766B1 (de)	1991-08-14	1992-08-13	Hochdruckreinigungsgerät

Country Status (4)

Country	Link
EP (1)	EP0620766B1 (da)
DE (2)	DE59204379D1 (da)
DK (1)	DK0620766T3 (da)
WO (1)	WO1993003865A1 (da)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7854398B2 (en)	2005-10-26	2010-12-21	Techtronic Outdoor Products Technology Limited	Hand held pressure washer
US8444068B2 (en)	2005-10-26	2013-05-21	Techtronic Outdoor Products Technology Limited	Dual flow pressure washer
US10968899B2 (en)	2015-11-20	2021-04-06	Positec Power Tools (Suzhou) Co., Ltd.	Pump unit and handheld high pressure washer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10101277B4 (de) *	2001-01-12	2006-11-02	Wacker Construction Equipment Ag	Hochfrequenz-Innenrüttler mit gekühltem elektronischen Frequenzumformer
EP1951435A4 (en) *	2005-11-16	2008-11-26	Faip North America Inc	PORTABLE HIGH PRESSURE ELECTRIC PRESSURE CLEANER
US8425203B2 (en)	2008-04-25	2013-04-23	Techtronic Outdoor Products Technology Limited	Portable pressure washer system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4597720A (en) *	1979-07-26	1986-07-01	Friedrichs Ingo H	Cleaning apparatus for the wet cleaning of building walls and floors, swimming pools, automobiles and the like
DE3115698C1 (de) *	1981-04-18	1982-12-16	Alfred Kärcher GmbH & Co, 7057 Winnenden	Motorpumpeneinheit fuer ein Hochdruckreinigungsgeraet
DK481284A (da) *	1984-10-08	1986-04-09	Knud Erik Westergaard	Motorpumpeenhed til et hoejtryksrenseapparat
DK595787D0 (da) *	1987-11-13	1987-11-13	Westergaard Knud Erik	Hoejtryksrenser
DE3931814A1 (de) *	1989-09-23	1991-04-04	Black & Decker Inc	Handgefuehrter hochdruckreiniger

1992
- 1992-08-13 EP EP92917910A patent/EP0620766B1/de not_active Expired - Lifetime
- 1992-08-13 DE DE59204379T patent/DE59204379D1/de not_active Expired - Fee Related
- 1992-08-13 DK DK92917910.9T patent/DK0620766T3/da active
- 1992-08-13 WO PCT/EP1992/001849 patent/WO1993003865A1/de not_active Ceased
- 1992-08-13 DE DE9215217U patent/DE9215217U1/de not_active Expired - Lifetime

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7854398B2 (en)	2005-10-26	2010-12-21	Techtronic Outdoor Products Technology Limited	Hand held pressure washer
US8444068B2 (en)	2005-10-26	2013-05-21	Techtronic Outdoor Products Technology Limited	Dual flow pressure washer
US10968899B2 (en)	2015-11-20	2021-04-06	Positec Power Tools (Suzhou) Co., Ltd.	Pump unit and handheld high pressure washer
USRE49589E1 (en)	2015-11-20	2023-07-25	Positec Power Tools (Suzhou) Co., Ltd	Pump unit and handheld high pressure washer

Also Published As

Publication number	Publication date
WO1993003865A1 (de)	1993-03-04
DK0620766T3 (da)	1995-12-18
DE9215217U1 (de)	1993-01-14
EP0620766A1 (de)	1994-10-26
DE59204379D1 (de)	1995-12-21

Legal Events

Date	Code	Title	Description
1994-09-09	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1994-10-26	17P	Request for examination filed	Effective date: 19940127
1994-10-26	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): BE DE DK FR GB IT LU NL
1995-04-05	17Q	First examination report despatched	Effective date: 19950215
1995-09-29	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1995-11-10	ITF	It: translation for a ep patent filed
1995-11-15	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): BE DE DK FR GB IT LU NL
1995-11-15	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19951115 Ref country code: GB Effective date: 19951115 Ref country code: BE Effective date: 19951115
1995-12-18	REG	Reference to a national code	Ref country code: DK Ref legal event code: T3
1995-12-21	REF	Corresponds to:	Ref document number: 59204379 Country of ref document: DE Date of ref document: 19951221
1996-03-15	ET	Fr: translation filed
1996-05-01	NLV1	Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
1996-05-22	GBV	Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]	Effective date: 19951115
1996-08-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19960831
1996-09-20	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1996-11-06	26N	No opposition filed
2001-07-04	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 20010704 Year of fee payment: 10
2001-08-27	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DK Payment date: 20010827 Year of fee payment: 10
2001-09-24	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20010924 Year of fee payment: 10
2002-09-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020930
2003-03-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030301
2003-03-31	REG	Reference to a national code	Ref country code: DK Ref legal event code: EBP
2003-04-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030430
2003-06-06	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
2005-08-13	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050813

Publication	Publication Date	Title
DE69001977T2 (de)	1994-03-17	Hand-Hochdruckreinigungsgerät.
DE69521046T2 (de)	2001-11-15	Elektrisch angetriebene Unterwasserpumpe
DE2418493A1 (de)	1974-11-07	Vorrichtung zur erwaermung des fluids einer scheibenwaschanlage
DE3851044T2 (de)	1995-02-16	Kühlungsvorrichtung für eine elektronische Anlage.
DE4304149C1 (de)	1994-09-08	Selbstansaugendes Motorpumpenaggregat
DE2813860A1 (de)	1979-10-04	Eintank-roentgengenerator
DE3612936A1 (de)	1987-10-22	Motorpumpeneinheit fuer ein hochdruckreinigungsgeraet
WO1993003865A1 (de)	1993-03-04	Hochdruckreinigungsgerät
DE2847360C3 (de)	1981-02-05	Unterwasserpumpe
DE60214866T2 (de)	2007-05-10	Filterkonstruktion für schwimmbad
DE9209590U1 (de)	1992-11-26	Hochdruckreinigungsgerät
EP0050770B1 (de)	1984-12-05	Von einem Gehäuse umschlossene Verdichtereinheit
DE2833661A1 (de)	1980-07-10	Heizungsanlage mit waermepumpe
CH661314A5 (de)	1987-07-15	Vorrichtung zum mischen, foerdern und verspritzen eines gemisches aus pulverfoermigem trockenmoertel und einer fluessigkeit.
DE3644120A1 (de)	1988-07-07	Elektromixer
CH655379A5 (en)	1986-04-15	Room-heating unit
DE19623637A1 (de)	1996-12-19	Gaslasereinrichtung mit einer Gaszirkulationsanordnung
EP0465956B1 (de)	1993-05-19	Pumpvorrichtung
DE3030136A1 (de)	1982-03-11	Mobile stromquelle, insbesondere schweissstromquelle
DE1566265C3 (de)	1973-08-09	Zahnaerztliches bohrhandstueck
DE649228C (de)	1937-08-18	Transformator-Kuehlanordnung
DE937298C (de)	1956-01-05	Kuehlanordnung fuer OEltransformatoren, insbesondere fuer elektrische Bahnfahrzeuge
AT227215B (de)	1963-05-10	Waschvorrichtung
AT164395B (de)	1949-11-10	Kühleinrichtung für elektrische Apparate, insbesondere Wirbelstrombremsen
DE8903464U1 (de)	1989-05-18	Vorrichtung zur stetigen Herstellung von Scherbeneis