US20090016916A1 - Bidirectional piston pump - Google Patents
Bidirectional piston pump Download PDFInfo
- Publication number
- US20090016916A1 US20090016916A1 US12/237,085 US23708508A US2009016916A1 US 20090016916 A1 US20090016916 A1 US 20090016916A1 US 23708508 A US23708508 A US 23708508A US 2009016916 A1 US2009016916 A1 US 2009016916A1
- Authority
- US
- United States
- Prior art keywords
- steam
- pump
- outlet
- inlet
- water
- 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
- 230000002457 bidirectional effect Effects 0.000 title abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000004744 fabric Substances 0.000 description 14
- 241000272525 Anas platyrhynchos Species 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 7
- 238000005086 pumping Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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
- A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
- A47L13/20—Mops
- A47L13/22—Mops with liquid-feeding devices
-
- 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
- A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
- A47L13/20—Mops
- A47L13/22—Mops with liquid-feeding devices
- A47L13/225—Steam mops
-
- 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
- A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
- A47L13/20—Mops
- A47L13/24—Frames for mops; Mop heads
- A47L13/254—Plate frames
- A47L13/256—Plate frames for mops made of cloth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools, brushes, or analogous members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0054—Special features particularities of the flexible members
- F04B43/0063—Special features particularities of the flexible members bell-shaped flexible members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B5/00—Machines or pumps with differential-surface pistons
- F04B5/02—Machines or pumps with differential-surface pistons with double-acting pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
- F22B1/284—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs
- F22B1/285—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs the water being fed by a pump to the reservoirs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2230/00—Other cleaning aspects applicable to all B08B range
- B08B2230/01—Cleaning with steam
Definitions
- the invention relates generally to a pump, and more particularly to a bidirectional piston pump that is actuated by the movement of the piston in either direction to pump water, and more particularly to a pump for pumping water from a reservoir to a boiler for generating steam to be distributed to a steam nozzle of a steam mop for application to a surface to be cleaned.
- Steaming devices used to apply steam to household objects are well known.
- the uses of the devices vary widely, and may include the application of steam to drapes or other fabrics to ease wrinkles, and the application of steam to objects to assist in cleaning the objects.
- Typical steam devices have a reservoir for storing water that is connected to an electrical water pump with an on/off switch.
- the exit from the electric water pump is connected to a steam boiler with a heating element to heat the water.
- the heated water generates steam, which may be directed towards its intended destination through a nozzle which controls the application of the steam.
- Variation of the shape and size of the nozzle allows for preferred distribution of generated steam to an object to be cleaned.
- the nozzles may be disconnectable from the steam generator to allow different nozzles to be utilized, based on the object to be steamed.
- the nozzle may be either closely coupled to the steam generator, or located at a distance from the steam generator, requiring tubing or other steam transfer structures to be interconnected between the steam generator and the discharge nozzle.
- it is beneficial to provide suitable connectors between the steam generator and the nozzle to allow either the nozzle to be connected to the steam generator, or to allow the interpositioning of transfer tubes or hoses between the steam generator and the nozzle.
- the nozzles used with the steam cleaners do not have large surface areas and a cloth to absorb the liquid condensate of the steam.
- the fabric pad is secured to the nozzle by Velcro strips to a plurality of cleats on the bottom of the nozzle.
- a flat fabric piece is folded around a flat brush or nozzle in order to increase the cleaning surface area.
- the folded fabric on top of the brush or nozzle is secured by a clip on top of the piece.
- steam injected behind the cloth passes through the cloth at the points the bristles contact on the cloth. This tends to wet the cloth and reduce the cleaning effectiveness of the steam.
- the cloth covers must be carefully attached not to cover the front or back of the brush attachment.
- a bidirectional piston pump for selectively injecting water from a reservoir to a boiler in response to the push-pull movement of a mop.
- the mop includes a housing with an electric boiler and a water pump wherein a user's back and forth movement of the mop pumps water to the boiler for distribution of steam to a steam pad frame attachment for cleaning.
- a fabric steam pad is mounted on the steam pad frame to provide an improved cleaning surface.
- the bidirectional pump or two-way piston pump in accordance with the invention includes a cylinder separated into two chambers by a piston coupled to a piston rod or appliance handle.
- An inlet having a one-way valve and an outlet having a one-way valve are connected to each chamber. Movement of the piston from the first end of the cylinder to the second end expels liquid out of the second end outlet and draws water into the first chamber through the first inlet and one-way valve and movement of the piston towards the first end expels water out of the first chamber and outlet through the first outlet valve and draws water into the second chamber through the second inlet and inlet valve.
- Another object of the invention is to provide a steam mop including the improved pump.
- a further object of the invention is to provide a mechanical pump that is actuated by movement of the piston in either direction pumps liquid from the pump.
- Yet another object of the invention is to provide a steam mop including the improved bidirectional piston pump.
- the invention accordingly comprises a product possessing the features, properties, and the relation of components which will be exemplified in the product hereinafter described, and the scope of the invention will be indicated in the claims.
- FIG. 1 is a perspective view of steam mop including a steam pad frame attachment for receiving a fabric steam pad including a bidirectional piston pump constructed and arranged in accordance with the invention
- FIG. 2 is a schematic view of a two way valve suitable for use with the steam mop of FIG. 1 ;
- FIG. 3 is a schematic view showing a pump with the two way valve of FIG. 2 connected to the boiler with steam pad frame and fabric steam pad of the steam mop of FIG. 1 .
- FIG. 1 is a perspective view of a steam mop 10 constructed and arranged in accordance with one embodiment of the invention.
- Mop 10 includes a housing or main body 16 connected to a steam pad frame 21 at one end of a pipe 20 and having a handle 11 at the other end of pipe 20 .
- Housing 16 includes a water container or tank 14 as shown in FIG. 2 as part of the upper part of housing 16 and is connected to a boiler 46 by a pump 29 having a one-way outlet valve 45 . Any type of mechanical pump or some other means of transporting the water to the boiler may be used with steam mop 10 .
- pump 29 is a mechanical pump, such as a bellows pump or a piston pump, that is actuated by movement of mop 10 by a user pushing and pulling handle 11 at the end of pipe 20 .
- An upper cord hanger 17 is mounted on handle 11 and a lower cord hanger 18 for easy storage of a power cord 47 is mounted on pipe 20 .
- Steam pad frame 21 is substantially rectangular in shape and includes a central steam opening 23 as shown on FIG. 5 .
- Steam generated in steam boiler 46 shown in FIG. 2 dispenses steam into frame 21 to central steam opening 23 of frame 21 .
- a substantially rectangular fabric steam pad 24 is mounted on frame 21 by attaching a pair of Velcro strips on pad 24 to a plurality of cleats mounted on frame 21 .
- Valve 250 suitable for use in a steam mop. Valve 250 will pump water when an appliance or handle 11 coupled to piston 254 is displaced both in the forward motion and also in the return or backwards motion.
- Pump 250 includes a pump cylinder 251 having an upper chamber 252 and a lower chamber 253 divided by a piston 254 that is connected to a piston rod 255 which moves up and down in response to movement of handle 11 .
- a first inlet unidirectional duck bill valve 256 and a first outlet unidirectional duck bill valve 257 are connected to upper chamber 252 .
- a second inlet unidirectional duck bill valve 258 and a second outlet unidirectional duck bill valve 259 are connected to lower chamber 253 .
- both inlet duck bill valves 256 and 258 are connected in parallel to a water inlet pipe 261 having a water inlet fitting 262 for securing a hose from a reservoir in housing 16 .
- Water outlet duck bill valves 257 and 259 are connected in parallel to a water outlet pipe 263 that is secured to a water outlet hose 266 connected to a boiler 267 at an inlet 268 .
- volume changes in chambers 252 and 253 must be created.
- a steam hose 269 is connected to steam generator 267 of any suitable design, which can be used to distribute the steam in the desired pattern.
- Water inlet 261 can be connected with any suitable connection (rubber hose, direct connection to a water tank, etc) to the water supply to enable pump 251 to pump and deliver the water to steam generator 267 .
- a steam appliance including a bidirectional piston pump provides many advantages for ease of use because it eliminates the need for an electric water pump and an on/off switch to activate the electric water pump.
- the user has more control over the amount of water needed to be discharged into the boiler and consequently, how much steam is needed by moving the mop forward and backwards.
- the appliance can be designed as a low pressure or non-pressurized system so it is safer for the user to use. Further, since the amount of water routed to the boiler is controlled, the boiler can create steam in a short amount of time.
Abstract
Description
- This is a divisional application of U.S. application Ser. No. 11/769,521, filed Jun. 27, 2007, which is a continuation-in-part of U.S. application Ser. No. 11/496,143, filed Jul. 31, 2006.
- The invention relates generally to a pump, and more particularly to a bidirectional piston pump that is actuated by the movement of the piston in either direction to pump water, and more particularly to a pump for pumping water from a reservoir to a boiler for generating steam to be distributed to a steam nozzle of a steam mop for application to a surface to be cleaned.
- Conventional mops have been widely used for cleaning floors. However, conventional mops have not been effective at cleaning dirt in small crevices and floor gaps. In addition, conventional mops require frequent rising since mops can only effectively clean a small surface area at a time.
- Steaming devices used to apply steam to household objects are well known. The uses of the devices vary widely, and may include the application of steam to drapes or other fabrics to ease wrinkles, and the application of steam to objects to assist in cleaning the objects.
- Typical steam devices have a reservoir for storing water that is connected to an electrical water pump with an on/off switch. The exit from the electric water pump is connected to a steam boiler with a heating element to heat the water. The heated water generates steam, which may be directed towards its intended destination through a nozzle which controls the application of the steam. Variation of the shape and size of the nozzle allows for preferred distribution of generated steam to an object to be cleaned. The nozzles may be disconnectable from the steam generator to allow different nozzles to be utilized, based on the object to be steamed. The nozzle may be either closely coupled to the steam generator, or located at a distance from the steam generator, requiring tubing or other steam transfer structures to be interconnected between the steam generator and the discharge nozzle. Typically, it is beneficial to provide suitable connectors between the steam generator and the nozzle to allow either the nozzle to be connected to the steam generator, or to allow the interpositioning of transfer tubes or hoses between the steam generator and the nozzle.
- In general, the nozzles used with the steam cleaners do not have large surface areas and a cloth to absorb the liquid condensate of the steam. Here, the fabric pad is secured to the nozzle by Velcro strips to a plurality of cleats on the bottom of the nozzle. In another embodiment, a flat fabric piece is folded around a flat brush or nozzle in order to increase the cleaning surface area. The folded fabric on top of the brush or nozzle is secured by a clip on top of the piece. Often steam injected behind the cloth passes through the cloth at the points the bristles contact on the cloth. This tends to wet the cloth and reduce the cleaning effectiveness of the steam. In addition, the cloth covers must be carefully attached not to cover the front or back of the brush attachment.
- Notwithstanding the wide variety of pumps suitable for a steam generating appliance available, there exists the need to provide an efficient, compact and easy to use bidirectional piston pump for pumping water in response to movement of an appliance handle and effectively improve the pumping action to improve effective steam generation in steam appliances.
- Generally speaking, in accordance with the invention, a bidirectional piston pump for selectively injecting water from a reservoir to a boiler in response to the push-pull movement of a mop is provided. The mop includes a housing with an electric boiler and a water pump wherein a user's back and forth movement of the mop pumps water to the boiler for distribution of steam to a steam pad frame attachment for cleaning. A fabric steam pad is mounted on the steam pad frame to provide an improved cleaning surface.
- The bidirectional pump or two-way piston pump in accordance with the invention includes a cylinder separated into two chambers by a piston coupled to a piston rod or appliance handle. An inlet having a one-way valve and an outlet having a one-way valve are connected to each chamber. Movement of the piston from the first end of the cylinder to the second end expels liquid out of the second end outlet and draws water into the first chamber through the first inlet and one-way valve and movement of the piston towards the first end expels water out of the first chamber and outlet through the first outlet valve and draws water into the second chamber through the second inlet and inlet valve.
- Accordingly, it is an object of the invention to provide an improved bidirectional piston pump.
- Another object of the invention is to provide a steam mop including the improved pump.
- A further object of the invention is to provide a mechanical pump that is actuated by movement of the piston in either direction pumps liquid from the pump.
- Yet another object of the invention is to provide a steam mop including the improved bidirectional piston pump.
- Still other objects and advantages of the invention will in part be obvious and will in part be apparent from the specification.
- The invention accordingly comprises a product possessing the features, properties, and the relation of components which will be exemplified in the product hereinafter described, and the scope of the invention will be indicated in the claims.
- For a fuller understanding of the invention, reference is made to the following description taken in connection with the accompanying drawing(s), in which:
-
FIG. 1 is a perspective view of steam mop including a steam pad frame attachment for receiving a fabric steam pad including a bidirectional piston pump constructed and arranged in accordance with the invention; -
FIG. 2 is a schematic view of a two way valve suitable for use with the steam mop ofFIG. 1 ; and -
FIG. 3 is a schematic view showing a pump with the two way valve ofFIG. 2 connected to the boiler with steam pad frame and fabric steam pad of the steam mop ofFIG. 1 . -
FIG. 1 is a perspective view of asteam mop 10 constructed and arranged in accordance with one embodiment of the invention.Mop 10 includes a housing ormain body 16 connected to asteam pad frame 21 at one end of apipe 20 and having ahandle 11 at the other end ofpipe 20.Housing 16 includes a water container or tank 14 as shown inFIG. 2 as part of the upper part ofhousing 16 and is connected to a boiler 46 by a pump 29 having a one-way outlet valve 45. Any type of mechanical pump or some other means of transporting the water to the boiler may be used withsteam mop 10. Preferably, pump 29 is a mechanical pump, such as a bellows pump or a piston pump, that is actuated by movement ofmop 10 by a user pushing and pullinghandle 11 at the end ofpipe 20. Anupper cord hanger 17 is mounted onhandle 11 and alower cord hanger 18 for easy storage of a power cord 47 is mounted onpipe 20. -
Steam pad frame 21 is substantially rectangular in shape and includes a central steam opening 23 as shown onFIG. 5 . Steam generated in steam boiler 46 shown inFIG. 2 dispenses steam intoframe 21 to central steam opening 23 offrame 21. A substantially rectangularfabric steam pad 24 is mounted onframe 21 by attaching a pair of Velcro strips onpad 24 to a plurality of cleats mounted onframe 21. - Referring now to
FIG. 2 , a “two way”valve 250 suitable for use in a steam mop. Valve 250 will pump water when an appliance orhandle 11 coupled topiston 254 is displaced both in the forward motion and also in the return or backwards motion.Pump 250 includes apump cylinder 251 having anupper chamber 252 and alower chamber 253 divided by apiston 254 that is connected to apiston rod 255 which moves up and down in response to movement ofhandle 11. - A first inlet unidirectional
duck bill valve 256 and a first outlet unidirectionalduck bill valve 257 are connected toupper chamber 252. A second inlet unidirectionalduck bill valve 258 and a second outlet unidirectionalduck bill valve 259 are connected tolower chamber 253. As shown inFIG. 3 , both inletduck bill valves water inlet pipe 261 having a water inlet fitting 262 for securing a hose from a reservoir inhousing 16. Water outletduck bill valves water outlet pipe 263 that is secured to awater outlet hose 266 connected to aboiler 267 at an inlet 268. In order to create the pumping action to force water out ofvalves chambers - A
steam hose 269 is connected tosteam generator 267 of any suitable design, which can be used to distribute the steam in the desired pattern.Water inlet 261 can be connected with any suitable connection (rubber hose, direct connection to a water tank, etc) to the water supply to enablepump 251 to pump and deliver the water tosteam generator 267. - As
piston 254 is moving downward, the volume oflower chamber 253 decreases which causes the water which is inside toexit chamber 253 throughduck bill valve 259. Water flow direction is determined by the direction of a duck bill valve. Water can flow only in one direction through a duck bill valve. At the same time water flows throughoutlet valve 259, the volume ofchamber 252 increases. This increase of the volume causes water to flow from the reservoir intochamber 252 through inletduck bill valve 256 as shown by arrow A. - A steam appliance including a bidirectional piston pump provides many advantages for ease of use because it eliminates the need for an electric water pump and an on/off switch to activate the electric water pump. Here, the user has more control over the amount of water needed to be discharged into the boiler and consequently, how much steam is needed by moving the mop forward and backwards. In addition, the appliance can be designed as a low pressure or non-pressurized system so it is safer for the user to use. Further, since the amount of water routed to the boiler is controlled, the boiler can create steam in a short amount of time.
- It will thus be seen that the objects set forth above, among those made apparent from the preceding description, are efficiently attained and, since certain changes may be made in the above product without departing from the spirit and scope of the invention, it is intended that all matter contained in the above description and shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
- It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/237,085 US20090016916A1 (en) | 2006-07-31 | 2008-09-24 | Bidirectional piston pump |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/496,143 US20080236635A1 (en) | 2006-07-31 | 2006-07-31 | Steam mop |
US11/769,521 US8205293B2 (en) | 2006-07-31 | 2007-06-27 | Steam mop |
US12/237,085 US20090016916A1 (en) | 2006-07-31 | 2008-09-24 | Bidirectional piston pump |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/769,521 Division US8205293B2 (en) | 2006-07-31 | 2007-06-27 | Steam mop |
Publications (1)
Publication Number | Publication Date |
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US20090016916A1 true US20090016916A1 (en) | 2009-01-15 |
Family
ID=39052986
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/496,143 Abandoned US20080236635A1 (en) | 2006-07-31 | 2006-07-31 | Steam mop |
US11/769,521 Active US8205293B2 (en) | 2006-07-31 | 2007-06-27 | Steam mop |
US12/237,085 Abandoned US20090016916A1 (en) | 2006-07-31 | 2008-09-24 | Bidirectional piston pump |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/496,143 Abandoned US20080236635A1 (en) | 2006-07-31 | 2006-07-31 | Steam mop |
US11/769,521 Active US8205293B2 (en) | 2006-07-31 | 2007-06-27 | Steam mop |
Country Status (1)
Country | Link |
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US (3) | US20080236635A1 (en) |
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US20070130719A1 (en) * | 2005-12-10 | 2007-06-14 | Xiao Tian (Zhongshan) Industrial Co., Ltd. | Steam floor mop |
US20080066789A1 (en) * | 2006-07-31 | 2008-03-20 | Maximilian Rosenzweig | Steam mop |
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US20080066789A1 (en) | 2008-03-20 |
US20080236635A1 (en) | 2008-10-02 |
US8205293B2 (en) | 2012-06-26 |
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