WO2001024677A1 - Systeme d'aspiration centrale dote d'un tuyau retractable - Google Patents

Systeme d'aspiration centrale dote d'un tuyau retractable Download PDF

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Publication number
WO2001024677A1
WO2001024677A1 PCT/US2000/027382 US0027382W WO0124677A1 WO 2001024677 A1 WO2001024677 A1 WO 2001024677A1 US 0027382 W US0027382 W US 0027382W WO 0124677 A1 WO0124677 A1 WO 0124677A1
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WO
WIPO (PCT)
Prior art keywords
hose
conduit
handle
vacuum cleaning
cleaning system
Prior art date
Application number
PCT/US2000/027382
Other languages
English (en)
Inventor
Gary Drivstuen
Howard Glazer
Original Assignee
Gary Drivstuen
Howard Glazer
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 Gary Drivstuen, Howard Glazer filed Critical Gary Drivstuen
Priority to AU78554/00A priority Critical patent/AU7855400A/en
Publication of WO2001024677A1 publication Critical patent/WO2001024677A1/fr

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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
    • 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
    • A47L5/38—Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected

Definitions

  • the present invention relates, generally, to central vacuum cleaning systems. More particularly, the invention relates to central vacuum cleaning systems using hoses that retract into the suction conduit.
  • U.S. patent 3,593,363 discloses a central vacuum cleaning system using a retractable hose.
  • the foot of the hose has a compressible annular seal.
  • the hose is pulled out of the suction conduit located in a wall or floor until the foot end reaches the receptacle mounted on the floor or wall, at which time the annular seal on the hose engages a corresponding annular abutment at the receptacle to hold the hose in position and seal between the hose and the receptacle.
  • the hose To retract the hose, the hose must be manually pushed back in so that the annular seal compresses over the annular abutment.
  • receptacles mount flash against a wall or floor.
  • the fittings on the ends of the prior art hose will not accommodate a sharp bend.
  • the prior art receptacles provide for the hose to be inserted and pulled out at an angle, typically less than 45 degrees, to the receptacle.
  • all the receptacles have a hinged door than must be opened to remove the hose. These doors typically have a seal surface and are spring loaded so as to provide an airtight seal when the receptacle is not in use. With the prior art retractable hose, spring loaded doors would rub against the hose as the hose is pulled out and may snag or jam the hose as it is retracted.
  • the present invention provides an improved retractable hose central vacuum cleanig system which overcomes the limitations and shortcomings of the prior art.
  • the present invention provides a central vacuum cleaning system with a retractable hose having a cover on the head end of the hose which allows the suction in the vacuum system to aid in retracting the hose into stationery conduit in walls.
  • the vacuum system comprises a stationary conduit, a flexible hose received by and in communication with the conduit, and a handle adapted to be received by a handle receptacle on the hose.
  • the stationary conduit is connected to and in communication with a vacuum cleaning unit.
  • the conduit has a terminal portion with a terminal end through which the hose retracts.
  • the conduit includes a portion having a sweeping radius adjacent the terminal portion. The flexible hose retracts into the conduit.
  • the hose has a foot end with an annular seal disposed between the hose and the conduit such that air flow past the seal is minimal.
  • the hose has a head end with a handle receptacle that includes a cover that can be closed to prevent airflow through the hose and can be opened to allow the handle receptacle to receive the handle.
  • a portion of the handle receptacle is adjacent the terminal end of the conduit.
  • the handle receptacle has an outer surface with a larger diameter portion, a smaller diameter portion adjacent the larger diameter portion and a face forming a juncture between the larger diameter portion and the smaller diameter portion. The smaller diameter portion is received by the terminal portion of the conduit when the hose is fully retracted, and the face limits the retraction of the hose into the conduit.
  • the vacuum system preferably include a wall plate through which the hose retracts.
  • the handle receptacle stops against the wall plate.
  • the handle receptacle stops against the terminal end of the conduit, and preferably has a sealing member, such as an o-ring between the face on the handle receptacle and terminal end of the conduit to minimize air leaks when the hose is not being used.
  • the wall plate preferably has a hinged cover that hides the handle receptacle when the hose is fully retracted.
  • the hinged cover on the wall plate preferably has a protrusion that engages a portion of the handle receptacle to move the handle receptacle partially out from the terminal portion of the conduit as the hinged cover is opened.
  • the conduit may have a portion with a larger inner diameter at a location adjacent the foot end of the hose when the hose is fully retracted. With the hose within a short distance of being fuly retracted in the conduit, the annular seal at the foot end of the hose is disposed within the larger diameter portion of the conduit.
  • Figure 1 is an exploded perspective view of the vacuum cleaning system.
  • Figure 2 is a cross-sectional view of one embodiment of a wall installation showing the head end of the hose retracted into the conduit.
  • Figure 3 is a cross-sectional view of another embodiment of a wall installation showing the head end of the hose retracted into the conduit.
  • Figure 4 is a perspective view of the preferred embodiment of a wall installation in the end of a 2 X 4 stud wall showing the hose partially retracted into the conduit.
  • Figure 5 is a side view of the head end of the hose extended slightly from the terminal portion of the conduit.
  • Figure 6 is a cross sectional view of a portion of the wall installation of Figure 4 showing the head end of the hose fully retracted and disposed behind a hinged cover plate.
  • Figure 7 is the view of Figure 6 showing how the head end of the hose is pulled out of the conduit by opening of the cover plate.
  • Figure 8 is the view of Figure 6 showing another embodiment of a wall installation that terminates the conduit with a flared fitting.
  • Figure 9 is a cross sectional view of an enlarged portion of the conduit at the tail end of the hose when the hose is fully retracted.
  • Central vacuum cleaning systems include a central, self-contained vacuum cleaning unit which supplies suction to several stationary conduits running throughout floors and/or walls of a building.
  • the vacuum cleaning unit and the general system of conduits is well known in the art.
  • a receptacle is located at each outlet of the conduits, typically on a wall or floor.
  • a removable hose is connected to the receptacle for vacuuming, and disconnected when cleaning is finished.
  • the hoses are typically 25-40 feet long, which makes them bulky and cumbersome to store in a closet or other location in the building.
  • the present invention allows the hose to retract into the suction conduit using the suction generated by the vacuum cleaning unit to facilitate retraction.
  • the vacuum cleaning system of present invention comprises a retractable hose 10, which is received in a conduit 12, and a handle 14 which is received by retractable hose 10.
  • Conduit 12 is preferably that which is specifically made for the central vacuum cleaner industry. It is typically PVC tubing with a uniform diameter and a smooth inner surface.
  • Retractable hose 10 has a foot end 16 and a head end 18 and is made of flexible hose 20, well known in the art.
  • annular seal 22 is applied to the outside of flexible hose 20.
  • the annular seal 22 is preferably a flexible tubular portion, made of material such as vinyl, that fits tightly over the outside of flexible hose 20.
  • the outer coutour of annular seal 22 may be cylindrical as illustrated or it may be bulbous.
  • the flexible hose 20 typically has ridges that advance like a screw thread along hose 20.
  • Annular seal 22 preferably has internal threads which match the external threaded ridges of flexible hose 20 so that annular seal 22 can be screwed onto the end of flexible hose 20 and secured thereto by means such as gluing.
  • the foot end 16 may have annular seal 22 integrally molded with flexible hose 20 at its end.
  • the outside diameter of annular seal 22 cooperates with the inner diameter of conduit 12 and provides for a fit that allows retractable hose 10 to readily slide along conduit 12 and also provides a reasonable air seal between the inside of conduit 12 and retractable hose 10.
  • Hose 20 preferably includes a hose covering typically a knitted fabric well known in the art.
  • annular seal 22 may be fashioned from the hose covering by gathering and end portion of the hose covering at foot end 16 to form an annular a bulge around the hose. The bulge is then wrapped with several layers of adhesive tape, preferably a plastic or Teflon tape to form the annular seal 22.
  • the diameter of such an annular seal 22 can vary significantly, but can be adjusted by applying more or less layers of tape as needed to achieve the desired diameter.
  • handle receptacle 30 is attached to the end of flexible hose 20.
  • Handle receptacle 30 is preferably a molded plastic fitting with an inner diameter approximately the same as that of flexible hose 20.
  • FIG. 2 It has a rear portion 32 (shown in Figure 2) adapted to mate with the end of flexible hose 20.
  • An external coupling 35 may be used to join flexible hose 20 with rear portion 32.
  • Annular flange 34 is disposed forward of rear portion 32 and operates as a stop against a wall or floor receptacle to stop retraction of hose 10.
  • a cover 36 is preferably hingedley attached to handle receptacle 30 forward of flange 34 at hinge 38, which preferably is spring biased to keep cover 36 closed when handle 14 is not attached.
  • Handle receptacle 30 can be adapted from a utility valve intended for installation in a conduit or vacuum system. Such utility valves are available from Beam Industries of Webster City, Iowa.
  • Handle 14 is a hollow structure having a wand portion 40, a connector portion 42, and a junction portion 44.
  • Wand portion 40 preferably is a metal tube and preferably is bent typical of handles well known in the art for vacuum cleaning hoses.
  • Connector portion 42 is received by handle receptacle 30 and has an outer diameter that will mate with the inner diameter of handle receptacle 30 in a manner that will facilitate easy installation and extraction of handle 14 into handle receptacle 30, yet securely hold handle 14 in receptacle 30 during use. This may be accomplished by means well known in the art, such as making connector portion 42 of a resilient material, such as vinyl, and by providing a taper on connector portion 42 so that it fits tighter as it is pushed further into receptacle 30.
  • Junction portion 44 connects wand portion 40 with connector portion 42 and may be a tubular vinyl portion. Junction portion 44 preferably has a larger outer diameter than wand portion 40 and connector portion 42 which provides a good size hand grip on handle 14. Junction portion 44 may also provide a means for incorporating a wireless switch 46 for actuating and deactuating the self-contained vacuum cleaning unit. Such a switch may optionally be integrally molded into junction portion 44, or may be removably attached to junction portion 44 such as by hook and loop fasteners. A swivel connection may also be provided between wand portion 40 and connector portion 42 either as an integral part of wand portion 40 or incorporated into junction portion 44.
  • Wall plate 50 is installed in an opening in wallboard 52 and preferably mounts flush against wallboard 52.
  • Wall plate 50 has a central aperture 54 which has a diameter that allows rear portion 32 of handle receptacle 30, coupling 35 and flexible hose 20 to pass through but does not allow flange 34 to pass through.
  • a flexible finger pull (not shown) may be attached to handle receptacle 30.
  • cover 36 may be opened, handle 14 attached, and hose 10 is then extracted by pulling on handle 14.
  • Conduit 12 has a terminal portion that is mounted inside of wall 90, typically against a vertical stud.
  • the central axis 13 of the terminal portion of conduit 12 does not align with the axis 51 of the aperture 54 through cover plate 50.
  • annular seal 22 provides an air seal between conduit 12 and retractable hose 10
  • terminal end 60 of conduit 12 need not be connected to cover plate 50 by additional conduit. This eliminates the need for the corner fittings where conduits meet wall or floor receptacles.
  • terminal end 60 of conduit 12 may be a substantial distance from wall plate 50, thereby allowing hose 20 to curve naturally around the corner with minimal friction to facilitate easy extraction and retraction of retractable hose 10.
  • Terminal end 60 of conduit 12 has a flange 62 which has an aperture that allows flexible hose 20 to easily pass through it, but does not allow annular seal 22 to readily pass through it. This prevents retractable hose 10 from inadvertently being pulled out of conduit 12.
  • the inner diameter of flange 62 may cooperate with the outer diameter of annular seal 22 to allow annular seal 22 to be forced passed flange 62 to facilitate removing and installing retractable hose 10 in conduit 12.
  • flange 62 may be removable from conduit 12 to facilitate removal of retractable hose 10 from conduit 12 and thereby leave flange 62 disposed on flexible hose 20 when it is removed.
  • FIG. 2 requires hose 20 to be bent 90 degrees over a short distance, which is rather difficult in a standard 2 X 4 wall.
  • a 2 X 6 wall offers more room between the wallboard 52, making the 90 degree bend less difficult, but 2 X 6 walls are not always available for installation of the vacuum cleaning system.
  • FIG. 3 another embodiment is shown which only requires that hose bend 45 degrees in a 2 X 4 wall. This makes hose 20 slide easier in conduit 12, but it requires that wall plate 50 have a portion 53 that protrudes significantly outward from wall. Many people may find this protrusion objectionable.
  • the preferred embodiment has conduit 12 in a 2 X 4 wall with hose 20 exiting from conduit 12 out the end of the wall through the end stud 72.
  • Conduit 12 has a long sweep radius portion 74 between studs 70 and 72.
  • Tubing used for the central vacuum cleaner industry has a 2 inch inner diameter and is thinner than standard schedule 40 PVC pipe commercially available for water systems or electrical conduit. Because the tubing is a different diameter than schedule 40 pipe, conventional fittings used for such pipe will not work to join portions of the vacuum tubing. That necessitates the use of special fittings and joints made for the vacuum tubing, which are only available in limited configurations, a long sweep radius elbow not being one of them.
  • a schedule 40 2-inch sweep elbow, typically used as electrical conduit, has been found to work for this application provided the ends are adapted to join with the two-inch vacuum tubing, which is not designed to mate with the elbow.
  • the elbow used was part number PP-02PVCEL2 manufactured by Lamson & Sessions of Cleveland, Ohio, and marketed under the CARLON trademark.
  • the bend radius, and inner diameter of the CARLON elbow is sufficient to allow hose 20 to flex around the corner with minimal friction as hose 20 is moved in an out of conduit 12.
  • a portion of straight vacuum tubing could be heated and bent in a long sweep radius as long as the inner diameter is maintained and the tubing is not kinked.
  • Conduit 12 has a terminal portion 76 attached to radius portion 74.
  • Terminal portion 76 has a terminal end 78 located in a hole 80 in end stud 72, thereby providing firm support for terminal portion 76.
  • Terminal end 78 cooperates with handle receptacle 30 to allow handle receptacle 30 to retract the proper distance into terminal portion 76 of conduit 12.
  • the central axis 13 of terminal portion 76 can align with the central axis 51 of the aperture in the wall plate 50, as illustrated in Figures 6-8, so that no further bending of the hose is needed between the terminal portion 76 of the conduit and wall plate 50. That allows terminal portion 76 of conduit 12 to be in close proximity to wall plate 50.
  • handle receptacle 30 uses a utility valve made by Beam industries, part number
  • This utility valve has a uniform inner diameter and an outer surface that has three portions 82, 84, and 86 of different diameters.
  • the largest diameter portion 82 is adjacent cover 36 and has an outer diameter that preferably is approximately that of conduit 12.
  • the smallest portion 86 is at the end opposite cover 36, and the mid-sized portion 84 is disposed between portions 82 and 86.
  • Hose 20 is received by the inner diameter at the end of portion 86.
  • Terminal portion 76 of conduit 12 has an inner surface 88 with a diameter that will receive the outer diameter of portion 84 with sufficient clearance that handle receptacle 30 is easily inserted in and removed from the terminal portion 76.
  • the smaller diameter of portion 86 relative to portion 84 provides room to apply adhesive tape used to secure hose 20 to handle receptacle 30 and also provides room for a hose covering (not shown) to be applied over portion 86 without interfering with the inner surface 88 when handle receptacle 30 is installed in terminal portion 76.
  • the outer diameter of portion 86 and portion 84 could be identical and allow sufficient clearance for any tape and hose covering, or the hose covering could terminate at the end of portion 84 and not cover it.
  • Sealing member 92 is installed on portion 84 and abuts the face 94 between portion 84 and 82.
  • handle receptacle 30 is inserted into terminal portion 76 until sealing member 92 engages terminal end 78 of terminal portion 76 as illustrated in Figure 6.
  • Sealing member 92 thereby provides a seal between conduit 12 and face 94 of handle receptacle 30 when handle receptacle 30 is not being used.
  • a vacuum cleaning system may have more than one hose, with each hose being retracted into a different portion of the system of conduits. When one hose is being used, air leakage is minimized at other terminal ends of conduits for hoses that are not being used.
  • Sealing member 92 is preferably a rubber o-ring, but may be other resilient seal material well- known in the art, such as compressible foam, felt, or the like.
  • terminal portion 76 of conduit 12 is preferably installed in an end stud 72 so that flange 34 on handle receptacle 30 does not contact stud 72 or any other structure before sealing member 92 is engaged between terminal end 78 of terminal portion 76 and face 94 on handle receptacle 30.
  • Terminal portion 76 may be installed in end stud 72 such that flange 34 is adjacent and outside a cover plate 50 similar to the arrangement illustrated in Figure 2, thereby leaving a portion of handle receptacle 30 exposed.
  • terminal portion 76 may also be installed in end stud 72 such that cover 36 is in-line with wallboard 52 thereby allowing a cover plate 50 with a hinged cover portion 56 to be installed such that handle receptacle 30 is hidden behind hinged cover 56.
  • Hinged cover 56 is preferably biased closed and further includes a means by which cover 56 will remain in an open position so that it does not interfere with the motion of the hose during use.
  • Such means are well-known in the art and may include a spring device that is biased both closed and open, latch mechanisms, over center devices, and the like.
  • hinged cover 56 preferably has a protrusion 58 which interfaces with hinge 38 of cover 36 as cover 56 is raised to pull handle receptacle 30 and the hose attached to it partially out from conduit 12 as cover 56 is raised 20, thereby making it easier to grab handle receptacle 30 and pull it and the hose out of the conduit for use.
  • Protrusion 58 does not interfere with handle receptacle 30 or with the motion of the hose when cover 56 is in a fully open position as indicated by the dashed lines.
  • Protrusion 58 maybe a single element or it may be a plurality of elements such as a pair of prongs.
  • cover plate 50 may have a radiused or contoured portion 59 at its opening.
  • End stud 72 may also have a chamfered or radius portion 96 at the outer edge of the hole that receives terminal portion 76 of conduit 12.
  • flared portion 100 is such that flange 34 does not contact flared portion 100 when sealing member 92 is engaged between terminal end 78 of terminal portion 76 and face 94 on handle receptacle 30.
  • Cover 56 may have a protrusion 58, similar to that illustrated in Figures 6 and 7, to aid in pulling handle receptacle 30 from conduit 12 when cover 56 is opened.
  • handle receptacle 30 and the attached hose is pulled out from terminal portion 76, then cover 36 is lifted and handle portion 14 installed in handle receptacle 30.
  • Retractable hose 10 can be pulled out as far as necessary for the cleaning task, and the desired attachments connected to wand portion 40.
  • the self-contained vacuum cleaning unit is actuated to provide suction.
  • retraction may be accomplished by either covering the end of wand portion 40 with a hand, or preferably by disconnecting handle portion 14 from handle receptacle 30 while the vacuum cleaning unit is operating.
  • the suction provides a retraction force that helps pull the retractable hose 10 into conduit 12 until refaction is stopped as described above, at which time the vacuum cleaning unit can be deactivated.
  • annular seal 22 When the retractable hose 10 is retracted into conduit 12, annular seal 22 operates as a wiper against the inner surface of conduit 12 to loosen any residual dust which may cling to the inner surface of conduit 12 so that it is sucked to the vacuum unit. This cleans the inner surface of conduit 12 so that the outside of flexible hose 20 does not get dirty when retracted into conduit 12. Additionally, a stretchy knit nylon hose cover is preferably applied to the outside of flexible hose 20 which further reduces friction between flexible hose 20 and conduit 12. The hose cover may also be easily removed and washed.
  • conduit 12 may have an enlarged inner diameter, such as is made by a bulge portion 102 installed in conduit 12, so that annular seal 22 is disposed inside bulge portion 102. This allows air to flow along outside of hose 20 and around annular seal 22 when the hose is nearly fully retracted to remove dirt that may have accumulated on the outside of hose 20 and between it and the inner surface 88 of conduit 12.
  • the length of bulge portion 102 should not be so long that a substantial portion of hose 20 remains unretracted when the annular seal reaches bulge portion 102 during retraction since the retraction force is significantly reduced by the airflow around seal 20.
  • the airflow past the hose 20 will clean the outside of the hose until the hose is pulled out far enough that annular seal 22 engages inner surface 88 of conduit 12 beyond bulge portion 102, at which time the airflow around the outside of the hose stops. This prevents dirt on the outside of the hose or in the conduit from being redeposited on the floor as retractable hose 10 is pulled out of conduit 12.

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Abstract

La présente invention concerne un système d'aspiration centrale doté d'un tuyau rétractable (10) présentant un manche (14) contenu dans un récipient (30) muni d'un couvercle qui peut être fermé quand le manche est retiré afin d'éviter que le flux d'air ne passe dans le tuyau, permettant ainsi à l'aspiration dans le système d'aspiration d'aider à rétracter le tuyau dans le conduit fixe situé dans les murs. Dans le mode de réalisation préféré, le conduit (12) comprend une partie présentant un rayon de balayage adjacent à une partie terminale à travers laquelle le tuyau se rétracte. L'extrémité de pied (16) du tuyau présente un joint annulaire (22) placé entre le tuyau et le conduit de façon à ce que seulement un minimum de flux d'air ne passe au-delà du joint. Le conduit peut présenter une partie dotée d'un diamètre intérieur plus large à l'emplacement adjacent au joint annulaire lorsque le tuyau est complètement rétracté, ce qui permet à un flux d'air sensible de passer entre le joint annulaire et le conduit afin de nettoyer l'extérieur du tuyau au moment où le tuyau est presque complètement rétracté. Lorsque le tuyau est complètement rétracté à l'intérieur du conduit, une partie du récipient qui contient le manche limite la rétraction par son contact soit avec une plaque murale soit, de préférence, avec l'extrémité terminale du conduit. La plaque murale présente, de préférence, un couvercle articulé (36) qui cache le récipient du manche lorsque le tuyau est complètement rétracté. Le couvercle articulé de la plaque murale présente, de préférence, une protubérance qui vient en prise avec une partie du récipient du manche afin de le déplacer partiellement à l'extérieur de la partie terminale du conduit quand le couvercle articulé est ouvert.
PCT/US2000/027382 1999-10-07 2000-10-04 Systeme d'aspiration centrale dote d'un tuyau retractable WO2001024677A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU78554/00A AU7855400A (en) 1999-10-07 2000-10-04 Retractable hose central vacuum cleaning system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15857799P 1999-10-07 1999-10-07
US60/158,577 1999-10-07

Publications (1)

Publication Number Publication Date
WO2001024677A1 true WO2001024677A1 (fr) 2001-04-12

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PCT/US2000/027382 WO2001024677A1 (fr) 1999-10-07 2000-10-04 Systeme d'aspiration centrale dote d'un tuyau retractable

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002071910A1 (fr) * 2001-02-21 2002-09-19 Grethe Sem Larsen Retraction et rangement d'un flexible dans un systeme de conduit
WO2005110180A1 (fr) * 2004-05-10 2005-11-24 Stockton John H Rallonge de tuyau escamotable pour une installation de vide
US7010829B2 (en) 2003-06-05 2006-03-14 James Roger Harman Retractable hose central vacuum cleaning system apparatus and method
WO2006088434A1 (fr) * 2005-02-18 2006-08-24 Liv Plastika, Predelava Plastike, D.O.O., Postojna Aspirateur pour vehicule
US8479353B2 (en) 2008-07-23 2013-07-09 Rod Drivstuen Hose valve apparatus and method for retractable hose vaccum systems
WO2015117248A1 (fr) * 2014-02-10 2015-08-13 Les Industries Trovac Ltée Système de boîte de sortie pour systèmes d'aspiration centralisée
EP3323724A1 (fr) * 2016-11-17 2018-05-23 Airbus Operations GmbH Système pour aspirer un fluide ainsi qu'un véhicule équipé d'un tel système
US10292558B2 (en) 2015-02-25 2019-05-21 M.D. Manufacturing, Inc. Vacuum hose retraction system
US11272819B2 (en) 2018-06-04 2022-03-15 Rod Drivstuen Hose valve sub-assembly apparatus and method for retractable hose vacuum systems
EP4088635A1 (fr) * 2021-05-14 2022-11-16 General d'Aspirazione di Bianchi Claudia & C. S.A.S Dispositif de rétractabilité du tuyau flexible de systèmes de vide centraux
US11751735B2 (en) 2020-06-01 2023-09-12 M.D. Manufacturing, Inc. Vacuum and hose retraction system

Citations (5)

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Publication number Priority date Publication date Assignee Title
US3682500A (en) * 1969-01-02 1972-08-08 Jet Line Products Inc Suction hose for vacuum cleaning system for use with hose plug-in and hose retracting outlets
US4688596A (en) * 1986-06-05 1987-08-25 Research Products Corporation Wall outlet box for central vacuum cleaning system
US4895528A (en) * 1988-12-13 1990-01-23 Automation Industries, Inc. Universal high/low voltage hose-to-wall fitting for current-carrying flexible hose
EP0399931A1 (fr) * 1989-05-23 1990-11-28 Aldes Aeraulique Dispositif de commande à distance pour installation d'aspiration ou de ventilation
US5526842A (en) * 1995-04-25 1996-06-18 Christensen; Layne G. In-wall retractable vacuum cleaning hose access and storage device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682500A (en) * 1969-01-02 1972-08-08 Jet Line Products Inc Suction hose for vacuum cleaning system for use with hose plug-in and hose retracting outlets
US4688596A (en) * 1986-06-05 1987-08-25 Research Products Corporation Wall outlet box for central vacuum cleaning system
US4895528A (en) * 1988-12-13 1990-01-23 Automation Industries, Inc. Universal high/low voltage hose-to-wall fitting for current-carrying flexible hose
EP0399931A1 (fr) * 1989-05-23 1990-11-28 Aldes Aeraulique Dispositif de commande à distance pour installation d'aspiration ou de ventilation
US5526842A (en) * 1995-04-25 1996-06-18 Christensen; Layne G. In-wall retractable vacuum cleaning hose access and storage device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002071910A1 (fr) * 2001-02-21 2002-09-19 Grethe Sem Larsen Retraction et rangement d'un flexible dans un systeme de conduit
US7010829B2 (en) 2003-06-05 2006-03-14 James Roger Harman Retractable hose central vacuum cleaning system apparatus and method
JP4926950B2 (ja) * 2004-05-10 2012-05-09 ジョン、エイチ．ストックトン 真空掃除機用の伸縮ホースエクステンション
WO2005110180A1 (fr) * 2004-05-10 2005-11-24 Stockton John H Rallonge de tuyau escamotable pour une installation de vide
JP2007537004A (ja) * 2004-05-10 2007-12-20 ジョン、エイチ．ストックトン 真空掃除機用の伸縮ホースエクステンション
US7640620B2 (en) 2004-05-10 2010-01-05 Stockton John H Retractable hose extension for a vacuum
WO2006088434A1 (fr) * 2005-02-18 2006-08-24 Liv Plastika, Predelava Plastike, D.O.O., Postojna Aspirateur pour vehicule
US8479353B2 (en) 2008-07-23 2013-07-09 Rod Drivstuen Hose valve apparatus and method for retractable hose vaccum systems
WO2015117248A1 (fr) * 2014-02-10 2015-08-13 Les Industries Trovac Ltée Système de boîte de sortie pour systèmes d'aspiration centralisée
US10292558B2 (en) 2015-02-25 2019-05-21 M.D. Manufacturing, Inc. Vacuum hose retraction system
EP3323724A1 (fr) * 2016-11-17 2018-05-23 Airbus Operations GmbH Système pour aspirer un fluide ainsi qu'un véhicule équipé d'un tel système
US10577107B2 (en) 2016-11-17 2020-03-03 Airbus Operations Gmbh System for suctioning a fluid as well as a vehicle having such a system
US11272819B2 (en) 2018-06-04 2022-03-15 Rod Drivstuen Hose valve sub-assembly apparatus and method for retractable hose vacuum systems
US11751735B2 (en) 2020-06-01 2023-09-12 M.D. Manufacturing, Inc. Vacuum and hose retraction system
EP4088635A1 (fr) * 2021-05-14 2022-11-16 General d'Aspirazione di Bianchi Claudia & C. S.A.S Dispositif de rétractabilité du tuyau flexible de systèmes de vide centraux

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