CA1064312A - Exhaust system for laundry dryer - Google Patents
Exhaust system for laundry dryerInfo
- Publication number
- CA1064312A CA1064312A CA327,461A CA327461A CA1064312A CA 1064312 A CA1064312 A CA 1064312A CA 327461 A CA327461 A CA 327461A CA 1064312 A CA1064312 A CA 1064312A
- Authority
- CA
- Canada
- Prior art keywords
- hose
- window
- exhaust system
- plate
- laundry dryer
- 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.)
- Expired
Links
Classifications
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
- F16L37/38—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of the two pipe-end fittings
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/004—Couplings of the quick-acting type using magnets
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/24—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action
- F16L37/244—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action the coupling being co-axial with the pipe
- F16L37/248—Bayonet-type couplings
Abstract
ABSTRACT OF THE DISCLOSURE
An exhaust system for home appliances requiring outside venting, such as a portable laundry dryer, which obviates the neces-sity of piercing an exterior wall to vent the appliance to the outside.
The system includes a transparent window insert plate assembly, removably insertable within a window opening and having an exhaust outlet and a flexible air hose having means at both ends to removably connect the same with the air outlet of a laundry dryer and with the exhaust outlet of the window insert plate assembly. The latter outlet has closure means to seal the window opening when the dryer is not in use. This closure means is automatically closable.
An exhaust system for home appliances requiring outside venting, such as a portable laundry dryer, which obviates the neces-sity of piercing an exterior wall to vent the appliance to the outside.
The system includes a transparent window insert plate assembly, removably insertable within a window opening and having an exhaust outlet and a flexible air hose having means at both ends to removably connect the same with the air outlet of a laundry dryer and with the exhaust outlet of the window insert plate assembly. The latter outlet has closure means to seal the window opening when the dryer is not in use. This closure means is automatically closable.
Description
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The present application is a divisional application of patent application Serial No. 253,979 filed June 3, 197ff.
The present invention relates to an exhaust system for a laundry dryer. Conventional exhaust systems of the type described require piercing of an outside wall and providing an outside vent connected to the dryer by means of a flexible hose. However, in a plurality of buildings, especially where the premises are rented, it is forbidden to make alterations to the walls of the building and/or to modify the window frames, and yet there is no provision for discharging the flow of the hot and humid air from a dryer to the outside. Therefore, the occupants cannot avail themselves of the advantages of a laundry dryer.
The object of the invention is to provide an exhaust system of the type described, which is designed to obviate the above-noted disadvantage in that it makes use of any window open-ing to serve as an outlet for the dryer exhaust air, while at the same time preventing cold air from entering the premises, especially during winter-time.
- Another object of the invention resides in the provision of a system of the character described in which a window ; insert plate assembly fits within a window opening and makes sealing contact herewith, said assembly being provided with an exhaust outlet and with means to connect a flexible hose to said outlet.
The exhaust outlet is provided with closure means to prevent entry of outside air when the dryer is not in use.
~ In accordance with another object of the invention, ;` the closure means are automatically operable to close the opening whenever the dryer is stopped, or when the hose is disconnected.
In accordance with another object of the invention, an insert is also provided to fit the interior window of a double window unit.
The present application is a divisional application of patent application Serial No. 253,979 filed June 3, 197ff.
The present invention relates to an exhaust system for a laundry dryer. Conventional exhaust systems of the type described require piercing of an outside wall and providing an outside vent connected to the dryer by means of a flexible hose. However, in a plurality of buildings, especially where the premises are rented, it is forbidden to make alterations to the walls of the building and/or to modify the window frames, and yet there is no provision for discharging the flow of the hot and humid air from a dryer to the outside. Therefore, the occupants cannot avail themselves of the advantages of a laundry dryer.
The object of the invention is to provide an exhaust system of the type described, which is designed to obviate the above-noted disadvantage in that it makes use of any window open-ing to serve as an outlet for the dryer exhaust air, while at the same time preventing cold air from entering the premises, especially during winter-time.
- Another object of the invention resides in the provision of a system of the character described in which a window ; insert plate assembly fits within a window opening and makes sealing contact herewith, said assembly being provided with an exhaust outlet and with means to connect a flexible hose to said outlet.
The exhaust outlet is provided with closure means to prevent entry of outside air when the dryer is not in use.
~ In accordance with another object of the invention, ;` the closure means are automatically operable to close the opening whenever the dryer is stopped, or when the hose is disconnected.
In accordance with another object of the invention, an insert is also provided to fit the interior window of a double window unit.
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In accordance with yet another object of the invention, a quick disconnect coupling means is provided between the hose and the laundry dryer and such as to fit the exhaust tube of practically any type of laundry dryer.
In accordance with another object of the invention, the window plate inserts are adjustable in length to fit various widths of window openings.
The foregoing and other objects of the present invention will become more apparent during the following disclosure and by referring to the drawings, in which:
Figure 1 is a vertical section of a double window unit showing the window insert plate assemblies in accordance with the :: invention inserted therein and showing in elevation a flexible hose connected to a laundry dryer, shown in dot and dash lines;
Figure 2 is a top plan view of the exterior insert plate assembly;
. Figure 3 is an elevation of the assembly of Figure 2;
- Figures 4 and 5 are cross-sections of the two sections of .
the assembly of Figure 3 and taken along line 4-4 and 5-5, respectively;
Figure 6 is a top plan view of the interior window insert plate assembly used for the interior window of a double window unit;
Figure 7 is an elevation of the assembly of Figure 6;
Figure 8 is a cross-section taken along line 8-8 of Figure 7;
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Figure 9 is a top plan view of the exhaust outlet in accordance with the invention and incorporating automatically-operated :.! closure means;
-.l Figure 10 is an elevation from the inside face of the outlet ~ of Figure 9;
:, Figure 11 is a side elevation of the outlet of Figure 9;
Figure 12 is a longitudinal section of the outlet of Figure ~ 9 and taken along line 12-12 of Figure 9, the flap assembly being absent;
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Figure 13 is an exploded elevation of the flap assembly used in the outlet of Figure 9;
Figure 13a is an end view of the flap assembly of Figure 13;
Figure 14 is an elevation, partially broken, of the assembly of the flexible hose with its coupling means at both ends thereof for connecting to the exhaust outlet and to the outlet of the laundry dryer;
Figure 15 is an elevation of the inner end of the hose assembly of Figure 14;
Figure 16 is an end elevation of an elbow coupling in accordance with a second manner of connecting the flexible hose to -Figure 17 is a side elevation of the elbow of Figure 16;
Figure 18 is a partial section taken along line 18-18 of Figure 16;
Figure 19 is an end elevation of another embodiment of an elbow coupling;
~ Figure 20 is a side elevation of the elbow of Figure 19;
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- Figure 21 is an elevation of the inlet end of the flexible hose with coupling means to fit the elbow of Fig. 16 or of Fig. 19; 3 Figure 22 is a top view of still another embodiment of the telescopic inner window insert plate assembly;
Figure 23 is an elevation of the embodiment of Figure 22 Figures24 and 25 are cross-sections taken along lines 24-24 and 25-25, respectively, of Figure 23, and Figure 26 is a partial plan section taken along line 26-26 of Figure 23.
-` In the drawings, like reference characters indicate like elements throughout.
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~ 30 ~igure 1 shows the general assembly of the invention --~ wherein a laundry dryer 4 has its hot and humid air exhaust connected ., :
by means of a removable coupling assembly 80 to a flexible how 3, the .. . . . . . . .
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the other end of which, indicated at 33, is removably connected to an opening made in an outer window insert plate assembly 1 for the exhaust to the exterior of the building of the hot and humid air from the laundry dryer 4.
Exterior window plate assembly 1 is fitted within the side channels of a standard aluminum window frame 5 with the guillotine type lower window sash 6 in sealing contact with the top edge of plate assembly 1, so as to prevent entrance of outside air into the room where the laundry dryer is located.
In the case of a double window construction as shown, an inner window plate assembly 2 is fitted within the inner window opening in the side channels 7 thereof with the guillotine type lower window sash 3 in sealing contact with the top edge of assembly 2. This plate assembly 2 defines an opening for the passage of flexible hose 3.
Figure 1 also shows how the outer nipple 33 defining the outer end of hose 3 is provided with an outwardly protruding pin 35 removably engageable with an L-shaped slot 34 of the sleeve of the exhaust opening of plate assembly 1. The construction of :
the latter is shown in Figures 2 to 5. It consists of two tele-scopically-engaged sections 9 and 10 to fit window openings of different widths. The two sections each consist of a rectangular flat plate, preferably made of transparent material, such as clesr synthetic resin. Section 9 has inturned L-shaped guide rails 12 at the top and bottom longitudinal edges adapted to fit over the outturned longitudinally extending L-shaped guide rails 13, provided at the top and bottom longitudinal edges of section 10.
Thus, the two sections 9 and 10 can slide relative to each other along their guide rails 12 and 13. The top outer corners of sections ~, 30 9 and 10 are provided with an outwardly protruding metal pin 11, adapted to fit within a hole of the side channels of the aluminum -window frame 5 to prevent removal of the plate assembly 1. Also, the two sections 9 and 10 can be locked in position within the . ~, .
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window opening by means of a latch system, shown in Figure 3, and comprising a latch lever 18 pivoted to ears 15 secured to section 10 and having a pawl 17 engageable with any of the teeth of rack 17 formed at the bottom of the guide rail 12 of section 10. A handle 14 protruding from the inside face of section 9 facilitates the extension movement of the plate assembly 1. Section 9 has a circular opening 39 serving as the exhaust outlet.
Figures 6 to 8 show the inner window plate assembly, which is also extendable to fit inner window openings of different widths. It has a generally rectangular shape and is composed of ` two rigid plate sections, namely: a lower plate section 19 and a top plate section 20 sealed together at their longitudinal junction by means of a sealing strip 21, of H-shaped cross-section, so as to provide flanges overlying the surfaces of the two sections 19 and 20 with an intervening web contacting the longitudinal edges of said sections. -~
Sections 19 and 20 are provided with registering semi-circular notches at their contacting edges to form the circular - 20 opening 22 for the passage of flexible hose 3 when the two sections .
19 and 20 are assembled. The top edge of the upper section 20 and the lower edge of the lower section 19 are lined with sealing . ~ .
strips 26 to make sealing contact with the bottom edge of the window sash and the sill of the inner ~Jindow opening, respectively.
The plate assembly 2 is extensible to fit inner window opening of different widths. For this purpose, telescopic top and bottom sections 24 and 25, respectively, have each a tongue 23 -telescopically engaged in a groove at the corresponding end of upper and lower sections 20 and 19, respectively.
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The outlet opening 29 of the outer window plate assembly ' 1, illustrated in Figures 2 and 3, is fitted with a closure means to close the outlet of the flexible hose 3, or the interior of the room when the laundry dryer is not use.
Figures 9 to 13a show an embodiment of the closure means 106431'~
fo~ the outer end of the flexible hose and mounted in the outer window plate assembly. The flexible hose connecting sleeve 63 is integrally formed with, or is secured to, section 9 of the outer window plate assembly 1, as shown in Figure 12, and is provided at its inner end with the L-shaped bayonnet slot 64 (see Figure 11) for receiving the pin 35 of the outer end of the hose 3.
A pair of ears 65, 66 are integrally formed with section 9 on the outside thereof and have hinged holes in vertical alignment to receive a hinge rod 74. A pair of semi-circular flaps 68, 69 are provided with perforated ears 70, 71, 72, 73 along their straight edges for the insertion of hinge rod 74.
A coil spring 76 is wound around hinge rod 74, while its outer straight ends bear against the respective flaps 68, 69 to resiliently maintain the same in closed position against the marginal edge form-ed around the opening 75 in communication with sleeve 63.
The spring 76 is calculated to exert a pressure sufficient ~ to close the flaps when no air pressure is in tube 63 but to allow - opening of the flaps under the air pressure exerted by the ventilat-ing system of the clothes dryer 4.
- 20 A top horizontal guide 77, of L-shaped cross-section, and a lower horizontal guide 78, also of L-shaped cross-section, are integrally formed on the outside of section 9 above and below the tube 63 and the ears 65 and 66, respectively.
A cowl 79 is slidably fitted within the guide 77 and .~ 78 to extend opposite the discharge opening 75 of tube 63. This cowl is open at its two ends so that the hot and humid iar will - discharge sideways, being deflected by the inclined flaps 68 and 69. Cowl 79 can be easily removed whenever desired, so as, for `~ instance, to facilitate access to the flap mechanism for maintenance purposes or when no protruding part is allowed on the outside of the window. Cowl 79 protects the opening against rain and snow.
-~ As shown in Figures 14 and 15, the inner or dryer end ; of flexible hose 3 is inserted over a nipple 80 and secured thereto :'-- . , ., - .. -~0643~Z
by a surrounding band 81. Nipple 80 is formed at its inner end with a collar having a plurality, for instance four, radially outwardly protruding equally angularly spaced ears 84, each carry-ing a permanent magnet 82 flush with the outside face of ear 84, so as to magnetically adhere to the steel wall portion surrounding the dryer exhaust outlet for the humid and hot air to make a communication with the hose 3.
When the hose 3 is detached from the laundry dryer, soft iron discs 85 are positioned against the permanent magnets 82 to prevent demagnetization of the magnets 82.
- The coupling means of Figures 16, 17, 18 and 21 is used with dryers having an interior exhaust tube, or when any other method of clamping the hose to the dryer is not possible from the outside. The coupling consists of an elbow fitting having an inner ~ -tubular part 86 provided with an interior groove 87 holding an 0-ring 88 locked in position by the two stop rings 89 and 90. The part 86 is fitted over the interior exhaust tube of the dryer and ` the 0-ring 88 forms an air-proof connection therewith. The elbow 91,92 is held firmly. The outer end of elbow part 92 has a pin ~-95 protruding from the side face thereof engageable with the L-shaped slot 94 (see Fig. 21) formed at the end of the sleeve 93 fitted within the inner end of flexible hose 3 and held thereon by moans of clamping collar 81.
Figures 19 and 20 show another type of elbow connection.
A The inner end of the elbow 91,92 has a short neck 97 provided with a flange 96, in tùrn having a raised annular face 98 lined with a foam rubber ~ng 99 serving as a sealing gasket, which is applied ., .
against the periphery of the laundry dryer exhaust opening.
Flange 96 has a plurality of bayonnet type holes formed --~, 30 by a restricted portion 100 and a larger portion 101. These are equally spaced around flange 96. The flange 96 can thus be attached to -che dryer by loosening the normal two Parker screws of the dryer exhaust grille ring and passing the screw heads through the larger ~', ,- - - , - .- , ,: - - , , - : , . - - . ~
~0643~2 hole portion 101 and then by turning the flange about 10 degrees to the right until screws enter the restricted hole portions 100.
The screws are then tightened to hold the flange in place.
With this arrangement, due to the presence of a plurality of bayonnet holes 100, 101, the elbow can be oriented at 45 degree-intervals. The outer end of elbow 92 has a pin 95 to form a quick disconnect with the inner end of hose 3 by engag-ing L-shaped slot 94 (see Fig. 21).
The inner window plate assembly 2 of Figures 6 to 8 can be replaced, if desired, by the telescopic inner window plate assembly (shown in Figures 22 to 26) and preferably made of clear plastic material. This assembly is similar to the outer window plate assembly 1, illustrated in Figures 2 to 5 inclusive.
It comprises telescopically-engaged rectangular plate sections 102 and 103 to fit window openings of different widths. Section 102 has inturned guide rails 109 at its top and bottom longitudinal edges slidably engaging outwardly directed guide rails 108 at the ~ top and bottom longitudinal edges of section 103. The latter has ; a handle 105 to facilitate extension and retraction of the plate assembly.
Section 102 has a notch 106 through which extends the flexible hose 3. This notch 106 has a rounded bottom end and opens in full diameter at the top edge of section 102, and once the hose has been inserted in notch 106, a plate 104 is slidably inserted within vertical guide grooves 107 of section 102. Plate 104 has a semi-circular inner edge completing the circular opening ~ in notch 10~ through which the hose 3 extends.
i All the window insert plate assemblies and window open-ing closure means in accordance with the invention are preferably of clear plastic material, so as not to diminish the light entering the room in which the dryer is located and also for esthetic reasons not to disfigure the window as seen from the outside.
The window insert plate assemblies of the invention can also fit windows in which the window sashes are horizontally slidable.
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The window opening closure means of Figures 9 to 13a can be directly installed in an opening cut directly in the glass pane of a window sash of the pivotable type.
The exhaust system can be used in association with other appliances requiring outside venting, such as a kitchen ~ hood.
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In accordance with yet another object of the invention, a quick disconnect coupling means is provided between the hose and the laundry dryer and such as to fit the exhaust tube of practically any type of laundry dryer.
In accordance with another object of the invention, the window plate inserts are adjustable in length to fit various widths of window openings.
The foregoing and other objects of the present invention will become more apparent during the following disclosure and by referring to the drawings, in which:
Figure 1 is a vertical section of a double window unit showing the window insert plate assemblies in accordance with the :: invention inserted therein and showing in elevation a flexible hose connected to a laundry dryer, shown in dot and dash lines;
Figure 2 is a top plan view of the exterior insert plate assembly;
. Figure 3 is an elevation of the assembly of Figure 2;
- Figures 4 and 5 are cross-sections of the two sections of .
the assembly of Figure 3 and taken along line 4-4 and 5-5, respectively;
Figure 6 is a top plan view of the interior window insert plate assembly used for the interior window of a double window unit;
Figure 7 is an elevation of the assembly of Figure 6;
Figure 8 is a cross-section taken along line 8-8 of Figure 7;
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Figure 9 is a top plan view of the exhaust outlet in accordance with the invention and incorporating automatically-operated :.! closure means;
-.l Figure 10 is an elevation from the inside face of the outlet ~ of Figure 9;
:, Figure 11 is a side elevation of the outlet of Figure 9;
Figure 12 is a longitudinal section of the outlet of Figure ~ 9 and taken along line 12-12 of Figure 9, the flap assembly being absent;
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Figure 13 is an exploded elevation of the flap assembly used in the outlet of Figure 9;
Figure 13a is an end view of the flap assembly of Figure 13;
Figure 14 is an elevation, partially broken, of the assembly of the flexible hose with its coupling means at both ends thereof for connecting to the exhaust outlet and to the outlet of the laundry dryer;
Figure 15 is an elevation of the inner end of the hose assembly of Figure 14;
Figure 16 is an end elevation of an elbow coupling in accordance with a second manner of connecting the flexible hose to -Figure 17 is a side elevation of the elbow of Figure 16;
Figure 18 is a partial section taken along line 18-18 of Figure 16;
Figure 19 is an end elevation of another embodiment of an elbow coupling;
~ Figure 20 is a side elevation of the elbow of Figure 19;
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- Figure 21 is an elevation of the inlet end of the flexible hose with coupling means to fit the elbow of Fig. 16 or of Fig. 19; 3 Figure 22 is a top view of still another embodiment of the telescopic inner window insert plate assembly;
Figure 23 is an elevation of the embodiment of Figure 22 Figures24 and 25 are cross-sections taken along lines 24-24 and 25-25, respectively, of Figure 23, and Figure 26 is a partial plan section taken along line 26-26 of Figure 23.
-` In the drawings, like reference characters indicate like elements throughout.
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~ 30 ~igure 1 shows the general assembly of the invention --~ wherein a laundry dryer 4 has its hot and humid air exhaust connected ., :
by means of a removable coupling assembly 80 to a flexible how 3, the .. . . . . . . .
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the other end of which, indicated at 33, is removably connected to an opening made in an outer window insert plate assembly 1 for the exhaust to the exterior of the building of the hot and humid air from the laundry dryer 4.
Exterior window plate assembly 1 is fitted within the side channels of a standard aluminum window frame 5 with the guillotine type lower window sash 6 in sealing contact with the top edge of plate assembly 1, so as to prevent entrance of outside air into the room where the laundry dryer is located.
In the case of a double window construction as shown, an inner window plate assembly 2 is fitted within the inner window opening in the side channels 7 thereof with the guillotine type lower window sash 3 in sealing contact with the top edge of assembly 2. This plate assembly 2 defines an opening for the passage of flexible hose 3.
Figure 1 also shows how the outer nipple 33 defining the outer end of hose 3 is provided with an outwardly protruding pin 35 removably engageable with an L-shaped slot 34 of the sleeve of the exhaust opening of plate assembly 1. The construction of :
the latter is shown in Figures 2 to 5. It consists of two tele-scopically-engaged sections 9 and 10 to fit window openings of different widths. The two sections each consist of a rectangular flat plate, preferably made of transparent material, such as clesr synthetic resin. Section 9 has inturned L-shaped guide rails 12 at the top and bottom longitudinal edges adapted to fit over the outturned longitudinally extending L-shaped guide rails 13, provided at the top and bottom longitudinal edges of section 10.
Thus, the two sections 9 and 10 can slide relative to each other along their guide rails 12 and 13. The top outer corners of sections ~, 30 9 and 10 are provided with an outwardly protruding metal pin 11, adapted to fit within a hole of the side channels of the aluminum -window frame 5 to prevent removal of the plate assembly 1. Also, the two sections 9 and 10 can be locked in position within the . ~, .
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window opening by means of a latch system, shown in Figure 3, and comprising a latch lever 18 pivoted to ears 15 secured to section 10 and having a pawl 17 engageable with any of the teeth of rack 17 formed at the bottom of the guide rail 12 of section 10. A handle 14 protruding from the inside face of section 9 facilitates the extension movement of the plate assembly 1. Section 9 has a circular opening 39 serving as the exhaust outlet.
Figures 6 to 8 show the inner window plate assembly, which is also extendable to fit inner window openings of different widths. It has a generally rectangular shape and is composed of ` two rigid plate sections, namely: a lower plate section 19 and a top plate section 20 sealed together at their longitudinal junction by means of a sealing strip 21, of H-shaped cross-section, so as to provide flanges overlying the surfaces of the two sections 19 and 20 with an intervening web contacting the longitudinal edges of said sections. -~
Sections 19 and 20 are provided with registering semi-circular notches at their contacting edges to form the circular - 20 opening 22 for the passage of flexible hose 3 when the two sections .
19 and 20 are assembled. The top edge of the upper section 20 and the lower edge of the lower section 19 are lined with sealing . ~ .
strips 26 to make sealing contact with the bottom edge of the window sash and the sill of the inner ~Jindow opening, respectively.
The plate assembly 2 is extensible to fit inner window opening of different widths. For this purpose, telescopic top and bottom sections 24 and 25, respectively, have each a tongue 23 -telescopically engaged in a groove at the corresponding end of upper and lower sections 20 and 19, respectively.
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The outlet opening 29 of the outer window plate assembly ' 1, illustrated in Figures 2 and 3, is fitted with a closure means to close the outlet of the flexible hose 3, or the interior of the room when the laundry dryer is not use.
Figures 9 to 13a show an embodiment of the closure means 106431'~
fo~ the outer end of the flexible hose and mounted in the outer window plate assembly. The flexible hose connecting sleeve 63 is integrally formed with, or is secured to, section 9 of the outer window plate assembly 1, as shown in Figure 12, and is provided at its inner end with the L-shaped bayonnet slot 64 (see Figure 11) for receiving the pin 35 of the outer end of the hose 3.
A pair of ears 65, 66 are integrally formed with section 9 on the outside thereof and have hinged holes in vertical alignment to receive a hinge rod 74. A pair of semi-circular flaps 68, 69 are provided with perforated ears 70, 71, 72, 73 along their straight edges for the insertion of hinge rod 74.
A coil spring 76 is wound around hinge rod 74, while its outer straight ends bear against the respective flaps 68, 69 to resiliently maintain the same in closed position against the marginal edge form-ed around the opening 75 in communication with sleeve 63.
The spring 76 is calculated to exert a pressure sufficient ~ to close the flaps when no air pressure is in tube 63 but to allow - opening of the flaps under the air pressure exerted by the ventilat-ing system of the clothes dryer 4.
- 20 A top horizontal guide 77, of L-shaped cross-section, and a lower horizontal guide 78, also of L-shaped cross-section, are integrally formed on the outside of section 9 above and below the tube 63 and the ears 65 and 66, respectively.
A cowl 79 is slidably fitted within the guide 77 and .~ 78 to extend opposite the discharge opening 75 of tube 63. This cowl is open at its two ends so that the hot and humid iar will - discharge sideways, being deflected by the inclined flaps 68 and 69. Cowl 79 can be easily removed whenever desired, so as, for `~ instance, to facilitate access to the flap mechanism for maintenance purposes or when no protruding part is allowed on the outside of the window. Cowl 79 protects the opening against rain and snow.
-~ As shown in Figures 14 and 15, the inner or dryer end ; of flexible hose 3 is inserted over a nipple 80 and secured thereto :'-- . , ., - .. -~0643~Z
by a surrounding band 81. Nipple 80 is formed at its inner end with a collar having a plurality, for instance four, radially outwardly protruding equally angularly spaced ears 84, each carry-ing a permanent magnet 82 flush with the outside face of ear 84, so as to magnetically adhere to the steel wall portion surrounding the dryer exhaust outlet for the humid and hot air to make a communication with the hose 3.
When the hose 3 is detached from the laundry dryer, soft iron discs 85 are positioned against the permanent magnets 82 to prevent demagnetization of the magnets 82.
- The coupling means of Figures 16, 17, 18 and 21 is used with dryers having an interior exhaust tube, or when any other method of clamping the hose to the dryer is not possible from the outside. The coupling consists of an elbow fitting having an inner ~ -tubular part 86 provided with an interior groove 87 holding an 0-ring 88 locked in position by the two stop rings 89 and 90. The part 86 is fitted over the interior exhaust tube of the dryer and ` the 0-ring 88 forms an air-proof connection therewith. The elbow 91,92 is held firmly. The outer end of elbow part 92 has a pin ~-95 protruding from the side face thereof engageable with the L-shaped slot 94 (see Fig. 21) formed at the end of the sleeve 93 fitted within the inner end of flexible hose 3 and held thereon by moans of clamping collar 81.
Figures 19 and 20 show another type of elbow connection.
A The inner end of the elbow 91,92 has a short neck 97 provided with a flange 96, in tùrn having a raised annular face 98 lined with a foam rubber ~ng 99 serving as a sealing gasket, which is applied ., .
against the periphery of the laundry dryer exhaust opening.
Flange 96 has a plurality of bayonnet type holes formed --~, 30 by a restricted portion 100 and a larger portion 101. These are equally spaced around flange 96. The flange 96 can thus be attached to -che dryer by loosening the normal two Parker screws of the dryer exhaust grille ring and passing the screw heads through the larger ~', ,- - - , - .- , ,: - - , , - : , . - - . ~
~0643~2 hole portion 101 and then by turning the flange about 10 degrees to the right until screws enter the restricted hole portions 100.
The screws are then tightened to hold the flange in place.
With this arrangement, due to the presence of a plurality of bayonnet holes 100, 101, the elbow can be oriented at 45 degree-intervals. The outer end of elbow 92 has a pin 95 to form a quick disconnect with the inner end of hose 3 by engag-ing L-shaped slot 94 (see Fig. 21).
The inner window plate assembly 2 of Figures 6 to 8 can be replaced, if desired, by the telescopic inner window plate assembly (shown in Figures 22 to 26) and preferably made of clear plastic material. This assembly is similar to the outer window plate assembly 1, illustrated in Figures 2 to 5 inclusive.
It comprises telescopically-engaged rectangular plate sections 102 and 103 to fit window openings of different widths. Section 102 has inturned guide rails 109 at its top and bottom longitudinal edges slidably engaging outwardly directed guide rails 108 at the ~ top and bottom longitudinal edges of section 103. The latter has ; a handle 105 to facilitate extension and retraction of the plate assembly.
Section 102 has a notch 106 through which extends the flexible hose 3. This notch 106 has a rounded bottom end and opens in full diameter at the top edge of section 102, and once the hose has been inserted in notch 106, a plate 104 is slidably inserted within vertical guide grooves 107 of section 102. Plate 104 has a semi-circular inner edge completing the circular opening ~ in notch 10~ through which the hose 3 extends.
i All the window insert plate assemblies and window open-ing closure means in accordance with the invention are preferably of clear plastic material, so as not to diminish the light entering the room in which the dryer is located and also for esthetic reasons not to disfigure the window as seen from the outside.
The window insert plate assemblies of the invention can also fit windows in which the window sashes are horizontally slidable.
_g_ 1S~6431Z
. . :
The window opening closure means of Figures 9 to 13a can be directly installed in an opening cut directly in the glass pane of a window sash of the pivotable type.
The exhaust system can be used in association with other appliances requiring outside venting, such as a kitchen ~ hood.
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Claims (8)
1. An air exhaust system for a laundry dryer and the like having an air exhaust outlet and located in a room having a window including a window frame and a window sash slidable there-in, comprising a window insert plate assembly removably inserted within said window frame and the said window sash contacting an edge of said window insert plate assembly, said window insert plate assembly including telescopically-engaged rectangular plate sections to fit window frames of different widths, one of said plate sections having an aperture, an inwardly extending nipple fixed to said one plate section in register with said aperture, a flexible venting hose having detachable connecting means at its inner and outer ends for detachably connecting the outer end of said hose to said nipple, and the inner end of said hose to the exhaust outlet of a laundry dryer or the like, and closure means for said aperture of said one plate section, said closure means including a pair of semi-circular flaps mutually pivotally mounted on a vertical hinge rod carried by said one plate section on the outside thereof and across said aperture, spring means resiliently urging said flaps in closed position closing said aperture, said flaps openable under air pressure exerted against the same and produced in said hose.
2. An air exhaust system as claimed in claim 1, further including a cowl carried by said one plate section on the outside face thereof and opposite said flaps and aperture, said cowl having laterally directed openings for the escape of air.
3. An air exhaust system as claimed in claim 2, where-in said cowl is removably secured to said one plate section.
4. An air exhaust system as claimed in claim 1, wherein said detachable connecting means for detachably connecting said inner end of said hose to the exhaust outlet of a laundry dryer, or the like, include a collar fixed to the inlet end of said hose and carrying a plurality of permanent magnets spaced around said collar and adapted to contact the steel wall of a laundry dryer around said exhaust outlet and retain the hose in position.
5. An air exhaust system as claimed in claim 1, wherein said detachable connecting means for detachably connecting said inner end of said hose to the exhaust outlet of a laundry dryer, or the like, includes a collar fixed to said inlet end of said hose and provided with a plurality of angularly equally spaced bayonnet slots selectively engageable with screws carried by the wall of said dryer around said exhaust outlet.
6. An air exhaust system as claimed in claim 1, where-in said detachable connecting means for detachably connecting said inner end of said hose to the exhaust outlet of a laundry dryer, comprises an elbow connection having an inner O-ring at one end to make an air-tight connection with a vent tube of a dryer and having a protruding pin at its outer end for removably engaging an L-shaped slot made in a sleeve carried by said inner end of said hose.
7. An air exhaust system as claimed in claim 1, where-in one of said plate sections has inturned guide rails along its top and bottom longitudinal edges slidably engaging outwardly directed guide rails formed along the top and bottom edges of the other of said plate sections, a pivotally mounted latch lever carried by one of said plate sections and engageable with rack teeth formed longitudinally of the other of said plate sections to removably secure the two plate sections in adjustably extend-ed position.
8. An exhaust system as claimed in claim 1, further including an interior window insert plate assembly including tele-scopically-engageable plate sections, one section having a notch opening at one longitudinal edge of said section and having a curved inner edge of a diameter to fit around a flexible hose, said notch having straight edges merging with said curved inner edge, guide rails secured along said straight edges, and a closure plate slid-ably engageable with said guide rails and having an inner curved end conforming to the hose outside diameter.
-13_
-13_
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA327,461A CA1064312A (en) | 1979-05-11 | 1979-05-11 | Exhaust system for laundry dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA327,461A CA1064312A (en) | 1979-05-11 | 1979-05-11 | Exhaust system for laundry dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1064312A true CA1064312A (en) | 1979-10-16 |
Family
ID=4114191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA327,461A Expired CA1064312A (en) | 1979-05-11 | 1979-05-11 | Exhaust system for laundry dryer |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1064312A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007062709A1 (en) | 2005-12-01 | 2007-06-07 | Electrolux Home Products Corporation N.V. | Fluid-conducting connection element, hose coupling and components or household device comprising a connection element |
-
1979
- 1979-05-11 CA CA327,461A patent/CA1064312A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007062709A1 (en) | 2005-12-01 | 2007-06-07 | Electrolux Home Products Corporation N.V. | Fluid-conducting connection element, hose coupling and components or household device comprising a connection element |
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