CA2266023A1 - Cleaning lance - Google Patents
Cleaning lance Download PDFInfo
- Publication number
- CA2266023A1 CA2266023A1 CA002266023A CA2266023A CA2266023A1 CA 2266023 A1 CA2266023 A1 CA 2266023A1 CA 002266023 A CA002266023 A CA 002266023A CA 2266023 A CA2266023 A CA 2266023A CA 2266023 A1 CA2266023 A1 CA 2266023A1
- Authority
- CA
- Canada
- Prior art keywords
- barrel
- barrels
- valve means
- detergent
- mixing chamber
- 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.)
- Abandoned
Links
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
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/16—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets
- B05B1/1609—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a lift valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/0018—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
- B05B7/005—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam wherein ambient air is aspirated by a liquid flow
- B05B7/0056—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam wherein ambient air is aspirated by a liquid flow with disturbing means promoting mixing, e.g. balls, crowns
- B05B7/0062—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam wherein ambient air is aspirated by a liquid flow with disturbing means promoting mixing, e.g. balls, crowns including sieves, porous members or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
- B05B7/244—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using carrying liquid for feeding, e.g. by suction, pressure or dissolution, a carried liquid from the container to the nozzle
- B05B7/2443—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using carrying liquid for feeding, e.g. by suction, pressure or dissolution, a carried liquid from the container to the nozzle the carried liquid and the main stream of carrying liquid being brought together downstream of the container before discharge
-
- 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
Landscapes
- Nozzles (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Air Bags (AREA)
- Non-Flushing Toilets (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
A cleaning lance is provided in which water from an inlet (1) is directed either to an upper, rinsing barrel (5) or to a lower, foamer barrel (12). The latter is provided with a mixing chamber having an inlet for detergent supplied via a flow control valve (2). A water jet injected into the mixing chamber via a Venturi nozzle (3) draws in and mixes with the detergent and the resulting mixture is ejected by a further Venturi nozzle (4) and draws in air from an exterior air inlet (20) to form a jet of cleaning foam.
Description
.
CLEANING LANCE
The present invention relates to a cleaning lance, of the type used for cleaning the exterior of vehicles for example.
Such cleaning lances normally incorporate a barrel having a high pressure nozzle which is used to direct a high pressure water jet at the exterior of the vehicle. Such cleaning lances are normally supplied with pressurised water from a pump driven by an electric motor or a petrol engine and in many cases detergent is fed into the water flow at the site of the pump.
FR-1,363,426 discloses a cleaning lance having a mixing chamber in which an axially directed water jet sucks in air from an air inlet and detergent from a detergent inlet and forms a foam which is ejected axially from the outlet of the lS chamber. The air inlet and detergent in let are diametrically opposed within the mixing chamber.
FR-A-2,519,881 discloses a hand held cleaning lance having two barrels mounted on a common body and valve means incorporated in the body of the lance and operable by the user to switch pressurised fluid from an inlet of one barrel to an inlet of the other barrel, the barrels being arranged to form jets of different characteristics and the valve means comprising a freely movable valve member which is retainable by fluid pressure to selectively block said inlets.
However, in FR-A-2,519,881 the two barrels are located side by side and the movable valve member is movable by inclining the lance slightly about its longitudinal axis.
Since only one of the barrels is connected to a detergent A~ENDED S~IErT
~ . . ~
bottle, and the barrels are in any case of different lengths and bore sizes, an unbalanced arrangement results, which is not ergonomic.
A further problem with the above arrangement is that the valve member easily rolls from one side to the other lf pressure is interrupted, so it is possible to accidentally switch to a detergent stream. This can be dangerous because detergent is sometimes corrosive.
/ US-A-4202495 discloses a nozzle head selector for one or more nozzles located at the end of a single barrel, the selector being located at the nozzle end of the barrel. The selector has a changeover device formed by a ball which moves under gravity when the pressure is turned off to allow changeover of jets without changing the nozzle head, the jet being selected by slightly turning the barrel. Such a changeover device in being located at the nozzle end is able to operate under lower pressures and although some leakage may be acceptable at the nozzle end, no leakage is acceptable at a user end of a cleaning lance.
The present invention seeks to at least partially mitigate the foregoing difficulties.
In accordance with this invention there is provided a cleaning lance as claimed in claim 1 herein.
Other preferred features of the invention are defined in the dependent claims.
The above arrangement is more ergonomic than that of FR-A-2,519,881 and particularly in view of US-A-4202495 by AMENDED ~H~-T
particularly havlng a valve means comprising an elongate arcuate (preferably semi-circular~ chamber having an inlet and having respective spaced apart outlets çommunicating with the barrels, a rolling or sliding valve member (such as a steel ball for example) being located in the chamber and being arranged to move within the chamber to block one of the outlets on tilting the lance and to block the other of the outlets automatically (e.g. by the action of gravity) when the pressure is interrupted. To this end, the lance is preferably provided with trigger means for blocking fluid pressure to enable such movement of the valve member and for reapplying fluid pressure to maintain the valve member in position against the last-blocked outlet: by fluid pressure irrespective of the angle of tilt of the lance.
Preferably, however, the valve means is latched by fluid pressure which allows for rap:id change in comparison with a non-latching, manually operated arrangement which involves a significant delay and dividing of the flow.
Further preferred features are defined in the dependent claims.
A preferred embodiment of the invention is described below by way of example only with reference to Figures l and 2 of the accompanying drawings wherein:
FIG. lA is a longitudinal cross-section showing the AM~IDED~
~ CA 02266023 1999-03-08 ~ ' ' , .
t~
~f~;, ~r~I ~ 4 ~
r proximal end and mid-portion of a cleaning lance in accordance with the invention;
FIG. lB shows the distal portion of the cleaning lance of Fig. lA, and FIG. 2 is a section taken on II-II of Figure lA.
Referring to Figure lA, an elongate cleaning lance is shown to comprise a water inlet 1 provided with a trigger attachment (not shown) for applying and releasing water under pressure. The water inlet 1 communicates with a valve comprising a steel ball 14 whlch runs within a semi-circular ball valve chamber 15 as best seen in Figure 2. The ball 14 has a lower default position in which it blocks an inlet 18 to the foamer barrel 12 and has an upper position at which it blocks an inlet 17 to a pressure stream barrel s which generates a water jet. As shown in Figure 2, the path of the steel ball 14 between these two extreme positions is - 20 semi-circular and accordingly it can be moved between these two positions by tilting the lance about its longitudinal axis after releasing the pressure with the trigger attachment connected to water inlet 1.
- AWater jet is formed within a mixing chamber 19 by a Venturi nozzle 3 which is supplied with high pressure water by conduit 6 from inlet 18. The resulting jet draws in detergent 11 via a feed tube 10, mounting 8, detergent conduit 7 and needle valve 2 which controls the flow of detergent into the mixing chamber 19. The resulting mixture of water and detergent exits the mixing chamber via a further Venturi nozzle 4 which draws in air by Venturi action through an annular air inlet 20 which communicates with an annular passage 21 (Figure lB) which in turn has an air inlet open 23 to the atmosphere. The mixture of air, water and detergent passing along the foamer barrel 12 is foamed by a mesh 13 (Figure lB) and forms a stream of cleaning foam. The mesh is a conventional mesh of plastics material (polypropylene or nylon).
~EN~E~ S~EET
W 09X/037J~ PCT/GB97/02373 Annular passage 21 extends axially of the lance around barrel 12 and at its end remote from that end coupled with air inlet 20 there is provided one or more axially extending walls circumferentially spaced about the outer peripheral surface of the barrel 12 and defining passages therebetween communicating with the external at:mosphere via opening(s) 23 in the external surface of barre]. 12 prior to but adjacent to foaming mesh 13 in the direction of movement of the water detergent and air mixture through barrel 12. Therefore when air is required it is drawing through opening 23 into the passages between walls 22 and then into the Venturi 4 via the annular passage 21 and air inlet 20.
A removable detergent cartriclge 9 provided with its own detergent feed tube 10 and associated cap is attachable to mounting 8 by a standard bayonet fitting (not shown).
Referring to Figure 2, it will be noted that the ball 14 will normally fall to the lower position at which it blocks inlet 18 by the action of gravity. On releasing the water pressure at inlet 1 and tilting the lance anti-clockwise by 180~ about its longitudinal axis, the ball 14 can be moved to block inlet 17 and at this point pressure can be reapplied by the trigger (not shown) to maintain the ball in this position and form a foam jet by flow through inlet 18 to mixing chamber 19. When it is desired to wash off the foam, the water pressure is momentarily released by releasing the trigger, the lance is tilted slightly about its longitudinal axis to enable the ball 14 to roll back to its lower position, and fluid pressure is then reapplied by the trigger, allowing water to flow directly via inlet 17 to the upper barrel to form a cleaning stream.
The cleaning lance of the pre,ent invention can be used not only for vehicle cleaning but: also for other cleaning applications, such as abattoir sanitising for example.
CLEANING LANCE
The present invention relates to a cleaning lance, of the type used for cleaning the exterior of vehicles for example.
Such cleaning lances normally incorporate a barrel having a high pressure nozzle which is used to direct a high pressure water jet at the exterior of the vehicle. Such cleaning lances are normally supplied with pressurised water from a pump driven by an electric motor or a petrol engine and in many cases detergent is fed into the water flow at the site of the pump.
FR-1,363,426 discloses a cleaning lance having a mixing chamber in which an axially directed water jet sucks in air from an air inlet and detergent from a detergent inlet and forms a foam which is ejected axially from the outlet of the lS chamber. The air inlet and detergent in let are diametrically opposed within the mixing chamber.
FR-A-2,519,881 discloses a hand held cleaning lance having two barrels mounted on a common body and valve means incorporated in the body of the lance and operable by the user to switch pressurised fluid from an inlet of one barrel to an inlet of the other barrel, the barrels being arranged to form jets of different characteristics and the valve means comprising a freely movable valve member which is retainable by fluid pressure to selectively block said inlets.
However, in FR-A-2,519,881 the two barrels are located side by side and the movable valve member is movable by inclining the lance slightly about its longitudinal axis.
Since only one of the barrels is connected to a detergent A~ENDED S~IErT
~ . . ~
bottle, and the barrels are in any case of different lengths and bore sizes, an unbalanced arrangement results, which is not ergonomic.
A further problem with the above arrangement is that the valve member easily rolls from one side to the other lf pressure is interrupted, so it is possible to accidentally switch to a detergent stream. This can be dangerous because detergent is sometimes corrosive.
/ US-A-4202495 discloses a nozzle head selector for one or more nozzles located at the end of a single barrel, the selector being located at the nozzle end of the barrel. The selector has a changeover device formed by a ball which moves under gravity when the pressure is turned off to allow changeover of jets without changing the nozzle head, the jet being selected by slightly turning the barrel. Such a changeover device in being located at the nozzle end is able to operate under lower pressures and although some leakage may be acceptable at the nozzle end, no leakage is acceptable at a user end of a cleaning lance.
The present invention seeks to at least partially mitigate the foregoing difficulties.
In accordance with this invention there is provided a cleaning lance as claimed in claim 1 herein.
Other preferred features of the invention are defined in the dependent claims.
The above arrangement is more ergonomic than that of FR-A-2,519,881 and particularly in view of US-A-4202495 by AMENDED ~H~-T
particularly havlng a valve means comprising an elongate arcuate (preferably semi-circular~ chamber having an inlet and having respective spaced apart outlets çommunicating with the barrels, a rolling or sliding valve member (such as a steel ball for example) being located in the chamber and being arranged to move within the chamber to block one of the outlets on tilting the lance and to block the other of the outlets automatically (e.g. by the action of gravity) when the pressure is interrupted. To this end, the lance is preferably provided with trigger means for blocking fluid pressure to enable such movement of the valve member and for reapplying fluid pressure to maintain the valve member in position against the last-blocked outlet: by fluid pressure irrespective of the angle of tilt of the lance.
Preferably, however, the valve means is latched by fluid pressure which allows for rap:id change in comparison with a non-latching, manually operated arrangement which involves a significant delay and dividing of the flow.
Further preferred features are defined in the dependent claims.
A preferred embodiment of the invention is described below by way of example only with reference to Figures l and 2 of the accompanying drawings wherein:
FIG. lA is a longitudinal cross-section showing the AM~IDED~
~ CA 02266023 1999-03-08 ~ ' ' , .
t~
~f~;, ~r~I ~ 4 ~
r proximal end and mid-portion of a cleaning lance in accordance with the invention;
FIG. lB shows the distal portion of the cleaning lance of Fig. lA, and FIG. 2 is a section taken on II-II of Figure lA.
Referring to Figure lA, an elongate cleaning lance is shown to comprise a water inlet 1 provided with a trigger attachment (not shown) for applying and releasing water under pressure. The water inlet 1 communicates with a valve comprising a steel ball 14 whlch runs within a semi-circular ball valve chamber 15 as best seen in Figure 2. The ball 14 has a lower default position in which it blocks an inlet 18 to the foamer barrel 12 and has an upper position at which it blocks an inlet 17 to a pressure stream barrel s which generates a water jet. As shown in Figure 2, the path of the steel ball 14 between these two extreme positions is - 20 semi-circular and accordingly it can be moved between these two positions by tilting the lance about its longitudinal axis after releasing the pressure with the trigger attachment connected to water inlet 1.
- AWater jet is formed within a mixing chamber 19 by a Venturi nozzle 3 which is supplied with high pressure water by conduit 6 from inlet 18. The resulting jet draws in detergent 11 via a feed tube 10, mounting 8, detergent conduit 7 and needle valve 2 which controls the flow of detergent into the mixing chamber 19. The resulting mixture of water and detergent exits the mixing chamber via a further Venturi nozzle 4 which draws in air by Venturi action through an annular air inlet 20 which communicates with an annular passage 21 (Figure lB) which in turn has an air inlet open 23 to the atmosphere. The mixture of air, water and detergent passing along the foamer barrel 12 is foamed by a mesh 13 (Figure lB) and forms a stream of cleaning foam. The mesh is a conventional mesh of plastics material (polypropylene or nylon).
~EN~E~ S~EET
W 09X/037J~ PCT/GB97/02373 Annular passage 21 extends axially of the lance around barrel 12 and at its end remote from that end coupled with air inlet 20 there is provided one or more axially extending walls circumferentially spaced about the outer peripheral surface of the barrel 12 and defining passages therebetween communicating with the external at:mosphere via opening(s) 23 in the external surface of barre]. 12 prior to but adjacent to foaming mesh 13 in the direction of movement of the water detergent and air mixture through barrel 12. Therefore when air is required it is drawing through opening 23 into the passages between walls 22 and then into the Venturi 4 via the annular passage 21 and air inlet 20.
A removable detergent cartriclge 9 provided with its own detergent feed tube 10 and associated cap is attachable to mounting 8 by a standard bayonet fitting (not shown).
Referring to Figure 2, it will be noted that the ball 14 will normally fall to the lower position at which it blocks inlet 18 by the action of gravity. On releasing the water pressure at inlet 1 and tilting the lance anti-clockwise by 180~ about its longitudinal axis, the ball 14 can be moved to block inlet 17 and at this point pressure can be reapplied by the trigger (not shown) to maintain the ball in this position and form a foam jet by flow through inlet 18 to mixing chamber 19. When it is desired to wash off the foam, the water pressure is momentarily released by releasing the trigger, the lance is tilted slightly about its longitudinal axis to enable the ball 14 to roll back to its lower position, and fluid pressure is then reapplied by the trigger, allowing water to flow directly via inlet 17 to the upper barrel to form a cleaning stream.
The cleaning lance of the pre,ent invention can be used not only for vehicle cleaning but: also for other cleaning applications, such as abattoir sanitising for example.
Claims (3)
1. A cleaning lance comprising a mixing chamber (19) having two adjacent barrels, a first barrel (5) being arranged to form a rinsing stream and a second barrel (12) being arranged to form a stream of mixed water and detergent, the first and second barrels having a common water inlet (1) and valve means (15) for selectively coupling the water inlet to a respective one of the barrels (5, 12) and a coupling (8) arranged to support a detergent container (9) below both barrels, the detergent being admitted into said second barrel (12) wherein in the second barrel (12) there is provided a mixing chamber (19) where by Venturi action the water injected into the mixing chamber is mixed with detergent from said container (9) and ejected from an outlet nozzle (4), characterised in that said first and second barrels are located one above another, in use, with the coupling (8) being arranged to hold the container (9) being located below the barrels, a mesh (13) being located in the second barrel (12) downstream of the mixing chamber (19) for foaming the mixture, the first and second barrels (5, 12) being coupled by latching valve means (15) to a common water inlet (1), the valve means having a default position in which said valve means selectively couples the first barrel (5) to the water inlet, said valve means being operable by a user on reducing water pressure at the water inlet; wherein said valve means (15) comprises a rolling or sliding valve member (14) which is movable to selectively block one of a lower inlet (18) to the second barrel (12) and an upper inlet (17) to the first barrel (5), and said valve means (15) defines a curved path for the valve member (14) as it moves, in use, between its selective blocking positions.
2. A cleaning lance as claimed in claim 1, wherein the valve means (15) is switchable between its selective blocking positions by tilting or rotating the lance.
3. A cleaning lance as claimed in claim 1 or 2, wherein the detergent supply (9) is located near a proximal end of the cleaning lance and is spaced apart from and communicates with the mixing chamber (19) via a conduit (7) provided with a flow control valve (2), the mixing chamber (19) being located at the mid portion or distal end of the cleaning lance.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2629196P | 1996-09-09 | 1996-09-09 | |
| GBGB9618772.9A GB9618772D0 (en) | 1996-09-09 | 1996-09-09 | Cleaning lance |
| US60/026,291 | 1996-09-09 | ||
| GB9618772.9 | 1996-09-09 | ||
| PCT/GB1997/002373 WO1998009739A1 (en) | 1996-09-09 | 1997-09-04 | Cleaning lance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2266023A1 true CA2266023A1 (en) | 1998-03-12 |
Family
ID=26310000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002266023A Abandoned CA2266023A1 (en) | 1996-09-09 | 1997-09-04 | Cleaning lance |
Country Status (13)
| Country | Link |
|---|---|
| EP (1) | EP0925124B1 (en) |
| AT (1) | ATE200040T1 (en) |
| AU (1) | AU741321B2 (en) |
| CA (1) | CA2266023A1 (en) |
| DE (1) | DE69704431T2 (en) |
| DK (1) | DK0925124T3 (en) |
| ES (1) | ES2158578T3 (en) |
| GB (1) | GB2316893B (en) |
| GR (1) | GR3035649T3 (en) |
| NO (1) | NO313230B1 (en) |
| NZ (1) | NZ334455A (en) |
| PT (1) | PT925124E (en) |
| WO (1) | WO1998009739A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6378789B1 (en) * | 2000-06-01 | 2002-04-30 | S. C. Johnson Commercial Markets, Inc. | Combination spray apparatus |
| US6260772B1 (en) * | 2000-06-14 | 2001-07-17 | Ecolab Inc. | Dispensing and rinsing gun |
| DE10342000A1 (en) * | 2003-09-08 | 2005-04-07 | Alfred Kärcher Gmbh & Co. Kg | Method for producing a detergent foam and foam generation system for carrying out the method |
| EP2345484B1 (en) | 2010-01-15 | 2017-06-07 | Nilfisk A/S | Cleaning apparatus and method |
| WO2014125278A2 (en) * | 2013-02-12 | 2014-08-21 | Tetrosyl Limited | Foam generating spray device and spray head for use therein |
| KR102355641B1 (en) | 2013-10-02 | 2022-01-25 | 에어로코어 테크놀로지스 엘엘씨 | Cleaning method for jet engine |
| US11643946B2 (en) | 2013-10-02 | 2023-05-09 | Aerocore Technologies Llc | Cleaning method for jet engine |
| DE202017102731U1 (en) | 2017-05-08 | 2018-08-09 | Otto Christ Ag | Wash station for cleaning vehicles at a self-service wash area with a foam spray gun |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2965309A (en) * | 1959-09-01 | 1960-12-20 | Clarence F Parrott | Mixing apparatus |
| FR1363426A (en) | 1963-05-03 | 1964-06-12 | Improvement of watering jets and lances, in particular those for washing vehicles | |
| US3799451A (en) * | 1972-12-13 | 1974-03-26 | K Kollmai | Fluid flow wand assembly |
| US4277030A (en) * | 1976-01-22 | 1981-07-07 | Hechler Iv Valentine | Spray and foam dispensing nozzle |
| DE2707663A1 (en) * | 1977-02-23 | 1978-08-24 | Kaercher Gmbh & Co Alfred | SWITCHING DEVICE FOR OPTIONALLY CONNECTING A MEDIA INFEED LINE WITH ONE OF SEVERAL DISCHARGE LINES |
| DE7813438U1 (en) * | 1978-05-03 | 1978-09-14 | Kraenzle, Josef, 7918 Illertissen | MULTIPLE NOZZLE HEAD |
| FR2519881B1 (en) | 1982-01-21 | 1985-10-18 | Tecalemit Equip | GUN FOR SPRAYING AN AQUEOUS SOLUTION OF A BASIC PRODUCT, FOLLOWED BY RINSING |
| DE3214180A1 (en) * | 1982-04-17 | 1983-10-20 | Wolfgang 4800 Bielefeld Suttner | Attachment for a spray gun |
| DE3311382C2 (en) * | 1983-03-29 | 1985-02-21 | Alfred Kärcher GmbH & Co, 7057 Winnenden | Method for controlling a high-pressure cleaning device and high-pressure cleaning device for carrying out this method |
| US4805700A (en) * | 1987-05-29 | 1989-02-21 | Mine Safety Appliances Company | Foam generator adjustable to produce foam having various expansion ratios |
| US4878619A (en) * | 1988-11-01 | 1989-11-07 | Environmental Delivery Systems, Inc. | Fluid spray system having a replaceable cartridge |
| US5275763A (en) * | 1992-10-26 | 1994-01-04 | Toshiharu Fukai | Nozzle for generating bubbles |
| US5445226A (en) * | 1993-05-04 | 1995-08-29 | Scott Plastics Ltd. | Foam generating apparatus for attachment to hose delivering pressurized liquid |
-
1997
- 1997-09-04 AU AU41257/97A patent/AU741321B2/en not_active Ceased
- 1997-09-04 DE DE69704431T patent/DE69704431T2/en not_active Expired - Fee Related
- 1997-09-04 PT PT97939027T patent/PT925124E/en unknown
- 1997-09-04 CA CA002266023A patent/CA2266023A1/en not_active Abandoned
- 1997-09-04 DK DK97939027T patent/DK0925124T3/en active
- 1997-09-04 NZ NZ334455A patent/NZ334455A/en unknown
- 1997-09-04 AT AT97939027T patent/ATE200040T1/en not_active IP Right Cessation
- 1997-09-04 EP EP97939027A patent/EP0925124B1/en not_active Expired - Lifetime
- 1997-09-04 ES ES97939027T patent/ES2158578T3/en not_active Expired - Lifetime
- 1997-09-04 WO PCT/GB1997/002373 patent/WO1998009739A1/en active IP Right Grant
- 1997-09-05 GB GB9718946A patent/GB2316893B/en not_active Expired - Fee Related
-
1999
- 1999-03-04 NO NO19991070A patent/NO313230B1/en unknown
-
2001
- 2001-03-29 GR GR20010400498T patent/GR3035649T3/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU741321B2 (en) | 2001-11-29 |
| NZ334455A (en) | 2000-04-28 |
| ATE200040T1 (en) | 2001-04-15 |
| EP0925124B1 (en) | 2001-03-28 |
| GB9718946D0 (en) | 1997-11-12 |
| GB2316893A (en) | 1998-03-11 |
| NO991070D0 (en) | 1999-03-04 |
| ES2158578T3 (en) | 2001-09-01 |
| NO991070L (en) | 1999-03-04 |
| EP0925124A1 (en) | 1999-06-30 |
| NO313230B1 (en) | 2002-09-02 |
| GB2316893B (en) | 2001-01-10 |
| DE69704431T2 (en) | 2001-08-23 |
| PT925124E (en) | 2001-08-30 |
| DE69704431D1 (en) | 2001-05-03 |
| DK0925124T3 (en) | 2001-08-13 |
| AU4125797A (en) | 1998-03-26 |
| WO1998009739A1 (en) | 1998-03-12 |
| GR3035649T3 (en) | 2001-06-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |