GB2109092A - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- GB2109092A GB2109092A GB08230810A GB8230810A GB2109092A GB 2109092 A GB2109092 A GB 2109092A GB 08230810 A GB08230810 A GB 08230810A GB 8230810 A GB8230810 A GB 8230810A GB 2109092 A GB2109092 A GB 2109092A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nozzle
- valve
- check valve
- filter bag
- suction
- 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.)
- Granted
Links
- 239000000428 dust Substances 0.000 claims abstract description 29
- 239000011324 bead Substances 0.000 claims abstract description 9
- 239000012858 resilient material Substances 0.000 claims abstract description 7
- 230000013011 mating Effects 0.000 claims abstract description 5
- -1 for example Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
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
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
- A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
Abstract
A dust filter bag nozzle (6) for a suction cleaner, the nozzle having a check valve (1) of resilient material biassed to close the nozzle, a dust filter bag (7) being fitted around the nozzle. The check valve has two parts (3, 4) interconnected by a web hinge (2), the part (3) fixing it to the nozzle and the part (4) being provided with a bead (5) around the perimeter thereof for mating engagement with the rim of the nozzle. The valve is such as to allow passage of air in the direction of the arrow (A) and, when there is no air flow, the valve closes the nozzle to prevent dust in the bag (7) falling through the nozzle. <IMAGE>
Description
SPECIFICATION
A check valve of a nozzle for a dust filter bag of a suction cleaner
This invention relates to a check valve of a nozzle for a dust filter bag of a suction cleaner.
A check valve is known which consists of stamped-out rubber plates which are fixed on one side on a suction nozzle of a dust filter bag of a suction cleaner to close the nozzle.
However, with heavy soiling, the plates buckle into one another and are thereby forced into the nozzle by the weight of the dust in the filter bag. As a consequence, the sealing function of the opening of the nozzle is not guaranteed.
A check valve is also known which is injection moulded directly on the suction nozzle and which consists of a synthetic plastics material, for example, polyethylene or the like.
This sort of valve is certainly protected against inward folding but has the disadvantage of being very rigid at its pivot point on the rim of the nozzle so that it never completely closes and thus with this form a sealing effect is also not guaranteed.
According to the present invention, there is provided a dust filter bag nozzle for a suction cleaner, the nozzle having a check valve of resilient material biassed to close the nozzle and the check valve having two parts interconnected by a web hinge, one of the parts serving for the fixing of the valve on the nozzle and the other part having provided with a bead around the perimeter thereof for mating engagement with the rim of the nozzle.
For a better understanding of the invention and to show how the same may be carried into effect, reference will now be made, by way of example, to the accompanying drawing, in which:
Figure 1 is a diagrammatic sectional side view of a dust filter bag nozzle for a suction cleaner, the nozzle having a check valve, and
Figure 2 is a plan view of the check valve shown in Fig. 1.
Fig. 1 shows a nozzle 6 of a suction cleaner on which is fitted a dust filter bag 7. In the form illustrated, the suction cleaner is of an upright type with the dust filter bag 7 above the nozzle 6. When operating under suction, the nozzle 6 allows the passage of dust-laden air to flow in the direction of the arrow A, which air and dust is then collected in the filter bag 7.
A check valve 1 is provided on the nozzle 6 to prevent dust which is in the filter bag 7 from falling out again. The check valve 1 is hooked on a holder 8 on the nozzle 6 by means of an opening 9 in the check valve 1.
The check valve 1 is made of a resilient material such as rubber and, when there is suction flowing in the direction of the arrow
A, the valve assumes the position shown in broken lines, there being a web hinge 2 on the valve 1 which effectively divides the valve 1 into two parts 3 and 4 and provides an elastic pivot axis. The part 3 is the part of the valve 1 which is fixed to the nozzle 6 and the part 4, as shown in Fig. 2, comprises the major seling area of the valve 1. A bead 5 is provided around the perimeter of the part 4 in order to offer sufficient resistance to bending so that the valve 1 cannot be forced into the nozzle 6 by the weight of the dust in the filter bag 7.
When there is no longer any suction, the valve 1 assumes the position which is shown in full lines in Fig. 1 and the bead 5 is sufficient in construction for stiffening purposes but the valve 1 as a whole is not so heavy that the air is no longer able to lift it.
The natural resilience of the web hinge 2 ensures that the valve 1 closes the nozzle 6 when there is no suction.
1. A dust filter bag nozzle for a suction cleaner, the nozzle having a check valve of resilient material biassed to close the nozzle and the check valve having two parts interconnected by a web hinge, one of the parts serving for the fixing of the valve on the nozzle and the other part being provided with a bead around the perimeter thereof for mating engagement with the rim of the nozzle.
2. A nozzle as claimed in claim 1, wherein said check valve is made of rubber.
3. A dust filter bag nozzle for a suction cleaner, substantially as hereinbefore described with reference to the accompanying drawing.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (3)
1. A dust filter bag nozzle for a suction cleaner, the nozzle having a check valve of resilient material biassed to close the nozzle and the check valve having two parts interconnected by a web hinge, one of the parts serving for the fixing of the valve on the nozzle and the other part being provided with a bead around the perimeter thereof for mating engagement with the rim of the nozzle.
2. A nozzle as claimed in claim 1, wherein said check valve is made of rubber.
3. A dust filter bag nozzle for a suction cleaner, substantially as hereinbefore described with reference to the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19818132813U DE8132813U1 (en) | 1981-11-10 | 1981-11-10 | CHECK VALVE FOR FILTER CONNECTOR |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2109092A true GB2109092A (en) | 1983-05-25 |
| GB2109092B GB2109092B (en) | 1985-04-24 |
Family
ID=6732880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08230810A Expired GB2109092B (en) | 1981-11-10 | 1982-10-28 | Check valve |
Country Status (6)
| Country | Link |
|---|---|
| CH (1) | CH656790A5 (en) |
| DE (1) | DE8132813U1 (en) |
| ES (1) | ES276263Y (en) |
| FR (1) | FR2515952B1 (en) |
| GB (1) | GB2109092B (en) |
| IT (2) | IT8236123V0 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2161902A (en) * | 1984-07-18 | 1986-01-22 | Black & Decker Inc | Non-return flap valve for vacuum cleaner |
| EP0237606A1 (en) * | 1986-03-21 | 1987-09-23 | Smc Corporation | Lubricator |
| EP0252890A1 (en) * | 1986-07-03 | 1988-01-13 | Horda Gummifabrik AB | Valve device |
| US4807721A (en) * | 1986-03-21 | 1989-02-28 | Shoketsu Kinzoku Kabushiki Kaisha | Air line lubricator |
| GB2262972A (en) * | 1990-12-17 | 1993-07-07 | Rapid Developments Limited | One way valve |
| GB2314789A (en) * | 1996-07-03 | 1998-01-14 | Convac Limited | Non-return valve for a dust bag |
| CN104033632A (en) * | 2013-03-07 | 2014-09-10 | 北京华德创业环保设备有限公司 | Flexible valve clack check valve |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9110827U1 (en) * | 1991-08-31 | 1991-11-14 | Vorwerk & Co Interholding Gmbh, 5600 Wuppertal, De | |
| US6823905B1 (en) * | 2003-08-18 | 2004-11-30 | Illinois Tool Works Inc. | Inflation valve assembly for a dunnage or cargo air bag |
| RU2405402C2 (en) | 2005-11-22 | 2010-12-10 | Еврофильтерс Холдинг Н.В. | Bag filter for vacuum cleaner with closure device and vacuum cleaner to post specified filter |
| DE102020100577B4 (en) | 2020-01-13 | 2021-09-23 | Branofilter Gmbh | Vacuum cleaner filter bag device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1250704B (en) * | 1967-09-21 | |||
| US3292658A (en) * | 1963-07-15 | 1966-12-20 | Scaramucci Domer | Check valve and resilient hinge structure and method for manufacturing same |
| GB1404181A (en) * | 1972-01-12 | 1975-08-28 | Lucas Industries Ltd | Closure member for use in a non-return valve |
| US3814124A (en) * | 1972-09-20 | 1974-06-04 | Exxon Research Engineering Co | Thermoplastic check valve |
| DE2734229A1 (en) * | 1977-07-29 | 1979-02-01 | Klein Schanzlin & Becker Ag | Check valve metal disc flexible overcoat - is of wave-form and permits specific deformation and sufficient surface pressure under low pressure |
| DE2806272C2 (en) * | 1978-02-15 | 1983-01-05 | Miele & Cie GmbH & Co, 4830 Gütersloh | Device for securing and securing dust bags for dust bags in vacuum cleaners |
-
1981
- 1981-11-10 DE DE19818132813U patent/DE8132813U1/en not_active Expired
-
1982
- 1982-09-06 FR FR8215133A patent/FR2515952B1/en not_active Expired
- 1982-10-05 CH CH5835/82A patent/CH656790A5/en not_active IP Right Cessation
- 1982-10-28 GB GB08230810A patent/GB2109092B/en not_active Expired
- 1982-11-08 ES ES1982276263U patent/ES276263Y/en not_active Expired
- 1982-11-08 IT IT8236123U patent/IT8236123V0/en unknown
- 1982-11-08 IT IT49437/82A patent/IT1189412B/en active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2161902A (en) * | 1984-07-18 | 1986-01-22 | Black & Decker Inc | Non-return flap valve for vacuum cleaner |
| EP0237606A1 (en) * | 1986-03-21 | 1987-09-23 | Smc Corporation | Lubricator |
| US4807721A (en) * | 1986-03-21 | 1989-02-28 | Shoketsu Kinzoku Kabushiki Kaisha | Air line lubricator |
| EP0252890A1 (en) * | 1986-07-03 | 1988-01-13 | Horda Gummifabrik AB | Valve device |
| GB2262972A (en) * | 1990-12-17 | 1993-07-07 | Rapid Developments Limited | One way valve |
| GB2262972B (en) * | 1990-12-17 | 1995-05-31 | Rapid Developments Limited | One way valve |
| GB2314789A (en) * | 1996-07-03 | 1998-01-14 | Convac Limited | Non-return valve for a dust bag |
| WO1998001690A1 (en) * | 1996-07-03 | 1998-01-15 | Convac Limited | Sealing devices |
| US6129116A (en) * | 1996-07-03 | 2000-10-10 | Convac, Ltd. | Sealing devices |
| CN104033632A (en) * | 2013-03-07 | 2014-09-10 | 北京华德创业环保设备有限公司 | Flexible valve clack check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CH656790A5 (en) | 1986-07-31 |
| ES276263U (en) | 1984-05-16 |
| FR2515952A1 (en) | 1983-05-13 |
| ES276263Y (en) | 1985-01-01 |
| GB2109092B (en) | 1985-04-24 |
| IT1189412B (en) | 1988-02-04 |
| DE8132813U1 (en) | 1982-07-29 |
| IT8236123V0 (en) | 1982-11-08 |
| FR2515952B1 (en) | 1986-08-14 |
| IT8249437A0 (en) | 1982-11-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |