BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
A preferred embodiment of the invention, illustrated of the best mode in which Applicant contemplates applying the principles, is set forth in the following description and is shown in the drawings and is particularly and distinctly pointed out and set forth in the appended claims.
FIG. 1 is a diagrammatic sectional view of a structure having a central vacuum source and a plurality of vacuum tubes extending to various locations of the structure, one of which is connected to the in-wall storage cabinet of the present invention.
FIG. 2 is a front elevational view of the storage cabinet mounted between a pair of wall studs with the closure door in an open position.
FIG. 3 is an enlarged fragmentary sectional view of a wall valve with an end of the cleaning hose inserted therein.
FIG. 4 is a fragmentary sectional view of a first type of closure device for the open end of the cleaning hose when in a stored condition.
FIG. 5 is a fragmentary view of another embodiment of the closure device for the open end of the hose.
FIG. 6 is a fragmentary view of an ON/OFF valve type of closure device mounted in the handle end of the cleaning hose.
FIG. 6A is a fragmentary view similar to FIG. 6 showing the ON/OFF valve mounted in the valve attachment end of the hose.
FIG. 7 is another type of end closure device consisting of a plug insertable into the open end of the hose.
FIG. 8 is another embodiment of the closure device showing a device slip-fitted over the open end of the hose.
FIG. 9 is a side elevational view of another type of closure device and mounting bracket for an open end of the hose.
FIG. 10 is a top plan view of the closure device shown in FIG. 9.
Similar numbers refer to similar parts throughout the drawings.
DETAILED DESCRIPTION OF THE INVENTION
The central vacuum cleaning system of the present invention is indicated generally at 1, and is shown in FIG. 1 mounted within a usual structure 3. A central vacuum source 5 is located within the structure, such as in a lower level 7, but could be at other locations in the structure or outside closely adjacent thereto. A plurality of vacuum source tubes 9 extend from vacuum source 5 to various locations or rooms within structure 3. The number of ducts will depend upon the size of the house, the number of rooms, size of vacuum source 5 and other factors. Each of the supply ducts will terminate at a wall valve 11 such as shown in FIG. 3.
Wall valve 11 will have some type of closure flap or door 13 which will seal the wall valve opening 15 when not in use. Wall valve 11 as shown in FIG. 3 is only one type of wall valve that can be used in system 1 and can be different if desired without affecting the concept of the invention. Wall valve 11 may have electrical contacts 17 which engage other contacts 19 formed in attachment end 20 of a cleaning hose 21 when end 20 is inserted therein to actuate central vacuum source 5 through electrical conductors 23. Hose contacts 19 are connected to an ON/OFF switch (22) mounted in the handle of the cleaning hose by a plurality of conductors 25 embedded within the hose. Open end 27 of hose 21 communicates with the vacuum supply source indicated by Arrows 29 of vacuum tube 9 when inserted therein, which for many types of wall receptacles will be a frictional sliding engagement.
In accordance with one of the main features of the invention, a storage cabinet indicated generally at 31, is mounted in structure 3, preferably between spaced wall studs 33 of one wall 35. Cabinet 31 preferably will have a flat back wall 37, a pair of vertically extending side walls 39 which are secured to studs 33, and top and bottom walls 41 and 43 respectively, forming an interior storage compartment 45. A closure door 47 preferably is pivotally mounted on the cabinet by a plurality of hinges 49. However, if desired, cabinet 31 can be mounted on the outer surface of the wall 35 and not inserted between studs 33 without affecting the concept of the invention.
In further accordance with the invention, valve 11 is located within storage compartment 45 of cabinet 31 preferably on one of the side walls 39 or bottom wall 33 as shown in FIG. 2. A plurality of cleaning attachment mounting brackets preferably are attached to back wall 37 for holding various cleaning attachments, such as a bracket 51 for holding a power driven cleaning brush nozzle 53, a bracket 55 for holding a non-powered cleaning nozzle 57, brackets 59 for holding cleaning wand 61, as well as additional brackets 63 for holding other types of cleaning attachments usually used in a central vacuum cleaning system which are adapted to be connected to the end 65 of cleaning wand 61. These various brackets and cleaning attachments can vary without affecting the concept of the invention. The mounting brackets furthermore include a pair of curved brackets 67 which are vertically spaced within storage compartment 45 and preferably mounted on back wall 37, about which a length of cleaning hose 21 is arranged in a looped configuration enabling the hose to be separate from the various cleaning attachments and easily removable and replaceable from and into the storage compartment. Another mounting bracket 67 preferably is attached to back wall 37 for holding the cleaning appliance attachment end 69 of hose 21, usually adjacent an operating handle 71.
Again, in accordance with one of the features of the invention, hose 21 can remain attached to wall valve 11 as shown in FIG. 2 in communication with the connecting vacuum tube 9 when in a stored condition, enabling the other supply ducts to be active, that is, supplying a source of vacuum to their associated wall valves for insertion of the end of another cleaning hose therein. The ability to leave hose 21 attached to valve 11 increases the convenience to the user since it reduces tangling of the long section of hose 21 when stored in and removed from the cabinet and eliminates the need for connecting and disconnecting the hose from the valve each time the hose is used.
The ability to leave hose 21 connected to valve 11 while maintaining the vacuum at all of the valves in the structure is possible by the use of a closure device indicated generally at 75, which seals open end 77 of hose 21 which is adjacent handle 71 and opposite to open end 27 at the wall valve. Closure device 75 effectively seals open end 77 mechanically or by the vacuum suction created therein when vacuum source 5 is energized and providing a vacuum at the various wall receptacles throughout the structure. Various types of closure devices are shown in FIGS. 4-10 and are described below. These are just several of the various types of closure devices which can be utilized in vacuum cleaning system 1 to achieve the advantages of the present invention.
A first embodiment shown in FIG. 4 includes a cup-shaped bracket 79 which is mounted on back wall 37. An elastomeric disc 81 is mounted in the bottom of bracket 76 and will seal open end 77 when placed thereagainst upon handle 71 being placed in a stored position.
In a second embodiment shown in FIG. 5, a cage-like structure 83 contains a movably mounted spherical ball 85, or other contoured-shaped member like a cylinder or prism, which when handle 71 is placed in a storage bracket or clip 87 on back wall 37 will be sucked upwardly against and close open end 77 of the hose as shown by Arrow A.
A third embodiment is shown in FIG. 6 and is a mechanical ON/OFF valve 89 incorporated into end portion 90 of handle 71. FIG. 6A is an alternate construction and shows valve 89 incorporated into the end portion of hose 21 adjacent valve attachment end 20. Valve 89 is rotated as shown by Arrow B, FIG. 6, between ON/OFF positions where it blocks and unblocks either open end of the hose. ON/OFF valve 89 could be a rotary ball valve or similar structure incorporated into handle 71 or the attachment end of the hose which normally is inserted into the wall valve.
A fourth type of closure device is shown in FIG. 7 and is an elastomeric plug 91 insertable into open end 77 to seal the same when handle 71 is in a stored position on bracket 87. Preferably plug 91 is secured to back wall 37 on a cord 93 or the like, to make it readily accessible to seal the open end of the handle when in the stored position and preventing its misplacement when not in use.
A fifth embodiment is shown in FIG. 8 and is another elastomeric member 95 in the form of an end cap which is slidably frictionally inserted over open end 77 of handle 71 to seal open end 77 when not in use. Elastomeric cap 95 also can be secured to back wall 37 by a cord 96.
A sixth embodiment of the closure device is shown in FIGS. 9 and 10. A flexible flapper valve 97 can be mounted on an end of bracket 87 by a fastener 98 and is movable into sealing engagement with open end 77 as shown by Arrow C when handle 71 is placed in a stored position as shown in FIG. 9 on bracket 87. Bracket 87 may be formed with one or more slots 99 into which a connection stud 100 can be inserted when storing handle 71 to ensure that the open end 77 is in proper position for sealing by flapper valve 77 or for receiving elastomeric members 91 and 95 therein, as well as for sealing by ball 85 and pad 81. Stud 100 is the usual type of device found on the end of many cleaning handles and may be spring biased to be snap-fitted into holes formed in the various cleaning attachments for mounting the same on the handle.
Again, in accordance with the main feature of the invention, the end closure device enables the open end of the hose adjacent the handle or the open end adjacent the valve attachment end to be sealed permitting the hose to remain connected to the wall valve enabling the central vacuum source 5 to be energized and supplying a vacuum to other wall valves throughout the structure. This enables cleaning hose 21 to remain in cabinet 31 and attached to the wall valve if desired by the homeowner, with a second hose being used at the other locations throughout the structure, or if desired, cleaning hose 21 can be removed from wall receptacle 11 and taken to other cleaning locations. Most importantly, cabinet 3 provides a convenient structure in which the hose, and preferably the various cleaning attachments, can be stored and readily accessible to the cleaning personnel.
In the foregoing description, certain terms have been used for brevity, clearness, and understanding. No unnecessary limitations are to be implied therefrom beyond the requirement of the prior art because such terms are used for descriptive purposes and are intended to be broadly construed.
Moreover, the description and illustration of the invention is an example and the invention is not limited to the exact details shown or described.
Patent Application
20080092323
