CA1071397A - No-heat clothes dryer - Google Patents
No-heat clothes dryerInfo
- Publication number
- CA1071397A CA1071397A CA300,026A CA300026A CA1071397A CA 1071397 A CA1071397 A CA 1071397A CA 300026 A CA300026 A CA 300026A CA 1071397 A CA1071397 A CA 1071397A
- Authority
- CA
- Canada
- Prior art keywords
- door
- drying chamber
- opening
- vacuum
- access
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
-
- 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
- D06F58/10—Drying cabinets or drying chambers having heating or ventilating means
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Drying Of Solid Materials (AREA)
Abstract
.lambda.
ABSTRACT OF THE DISCLOSURE
A "no-heat" clothes dryer is provided herein. It includes a drying chamber having an access opening. An access door is hinged to the access opening, the door being adapted to close the access opening in an hermetically sealed manner. Means, which are conventional but which are adapted to be actuated only when the door is closed, are pro-vided to subject the interior of the drying chamber to a vacuum. Means are provided which positively interrelate the breaking of the vacuum with the opening of the access door. Such means include a door handle having a lever which is pivotally mounted to move between a closed position, where it locks the door in a closed position, and an open position, where it simultaneously opens vents to the interior of the drying chamber and unlocks the door to enable opening thereof. In this way, clothes are dried without the expenditure of wasteful heat energy in a home dryer which includes a fail-safe safety feature for the door opening.
ABSTRACT OF THE DISCLOSURE
A "no-heat" clothes dryer is provided herein. It includes a drying chamber having an access opening. An access door is hinged to the access opening, the door being adapted to close the access opening in an hermetically sealed manner. Means, which are conventional but which are adapted to be actuated only when the door is closed, are pro-vided to subject the interior of the drying chamber to a vacuum. Means are provided which positively interrelate the breaking of the vacuum with the opening of the access door. Such means include a door handle having a lever which is pivotally mounted to move between a closed position, where it locks the door in a closed position, and an open position, where it simultaneously opens vents to the interior of the drying chamber and unlocks the door to enable opening thereof. In this way, clothes are dried without the expenditure of wasteful heat energy in a home dryer which includes a fail-safe safety feature for the door opening.
Description
L39~
This invention relat~s to a clothes dryer ~hich is adapted to dry clo~hes without the addition of heat.
It i8 well known that clothes may be dried by the appllcation of heat thereto in electrically-heated or gas-heated clothes dryers.
Not only is there a considerable expenditure of energy required to heat Y the clothes to a sufficiently high temperature that the clothes will dry, but the heat in the exhaust from such dryers i9 lost. Moreover, since these dryers t~mble the clothe~, the clothes, when they are removed, are wrinkled and generally must be ironed.
It is well known that the boiling point of a liquid i9 decreased wi~h a decrease in ambient pressura. Thi8 well-known thermo-dynamic fact has been applied in many patents. For example, in Canadian Patent No. 322,144 i~sued May 3, 1932 to W. Muller et al, an apparatus is provided to assist in the preparation of bread. The apparatus includes a vacuum chamher having one or more air-tight and lockable access doors therein with means for supporting freshly baked bread within the chamber. A contenser i8 connected to the chamber and~a - .
vacuum pump i~ coupled~to the condenser. Drainage and control means ,. .
are connected to the chamber ~nd to the condenser. A pressure release : .
valve and a vacuum indicating gauge are also connected to ~he chamber.
~ In another patent, Canadian Pa~ent No. 372,845 issued March 30, - 19~8 to~.L. Flelsher, an`appara~us i8 provided for cooling bread.~ The appsratu~ includes a plurality of chambers, each having closure means - .
and mean~ for the autom-tic locklng thereof. A vacuum pump is provided~
along with distributor means for automatically connecting and di3conneo-ting the~pump with the chambers i~ timed relatlon and f~r breakin~ ~he~
vacuum~in the chamber~ without affecting the operation ~f the pump.
Thus, whIle these patents taught the drylng of~a material, e~g.
bread, using a vacu ~ chsmber and while they appreciated the necessity 30 ~ of breaking~the~vaeuum, t~ere was teachi~g of means positively .
`` lL~97~97 interrelating the breaking o the vacuum with the opening of the doors.
Such means i9 a valuable safety factor for a home-use dryer as diætinct from an lndustrial dryer.
Consequently, an object of a broad aspect of this invention is the provision of a clothes dryer which dries clothes by vacuum without the use of heat and including means positively interrelating the breaking of the vacuum with the opening of the access door.
By one broad aspect of this invention, then, a no-heat clothes dryer is provided co~prising: (a) a drying chamber having an access opening; (b~ an access door to the drying chamber, the door being adapted ~o close the access opening in an hermetically sealed manner; (c) means, adapted to be actuated only when the door is closed, to sub~ect the interior of the drying chamber to a vacu~n; and (d) means positively interrelating the breaking of the vacuum with the opening of the access door, the means comprising a door handle including a lever which is pivotally mounted to move between a closed position, where it locks the door in a closed position, and an open position, where it simultaneously opens vents to the interior of the drying chamber, thereby to break the vacuum, and unlocks ~he door to enable opening thereof.
By a variant thereof, the perimeter of the access opening is provided with one-half of a magnetic gasket, and the perimeter of the door is provided with a cooperating one-half of a magnetic gasket.
By another variant, the door handle comprises: ~i) a main framework; (ii) an anchor plate at one corner thereof; (iii) a release lever pivotally secured to the anchor plate; (iv) a plunger extending through the door, and connected to the free end of the release lever normally resiliently urged to come into locking engagement with a lock on the door frame; and (v) means associated with the movement of the plunger out of locking engagement with the lock to open vent means in the door.
~7~3~
` By ~et another Yariant, the clothes dryer includes hooks within the drying chambar for the hanging of clothes to be dried.
Thus, by the present invention in one of its variants, a "no-heat" clothes dryer is provided, the drying being achieved by a decrease in pressure. To achieve this according to one embodiment of this invention, an enclosed space is provided with a vacuum pump to facilitate the creatio~ of a partial vacuum in the interior. With the vacuum unit, the pressure of the cabinet will be reduced substantially after the clothe~ are put in. Although this will use a mlnute fraction of the energy required for the heati~g and air blowing of the conven-tional type, it will efficiently dry the clothes without tumbling, whlch al90 reduces or nullifies the energy and time required for presslng.
In the accompany~ng drawing, Figure 1 is a vertical cross-sectional uprigh~ view of the clothes dryer o~ an aspect of this invention; and Figure 2 is a vertical cross-sectional viPw of the door and ; lock mechanism of the clothes dryer of an aspect of this lnvention.
`~ ~ As seen in Figure 1,~ the clothes dryer 10 is a generally ~ ~ ~ rectangular parallelepiped box lOa including top 11, bottom 1-2j back 13 : - -, -: - :
20~ ~ and an access opening 14. Secured to the top 11 is a plurality of hooks 15 by which clothes~ to~be-dried may be hung up on hangers. Extending ` around~the~perime er of the access opening 14 is one-half of a magnetic gasket 16.~
A door 17 i8 provided which is hinged to the sccess opening 14 ~- in the usual manner (not shown). Extending around`the perimeter of the .
door~l7 is the~mating half of a =gnetic gasket 18, in order that the door 17 whe~ clooedj close~ehe clothes dryer 10 in an her~etic m~nner.
The exhaust l9 is connected to a source of vacuum. As shown in~Figuse 1, the source of vacuum is provided by a vacuum pump 20 dis-3~ posed within the box lOa.
AB shown in~Flgur2~2~, a door h~ndle 21 i5 provided whic~
~ : .:, -- . : - .
'. . .
~:97~
positiYel~ interrelates th~ hreaking of the vacuum with the opening of the access door 17. The handle 21 includes a framework 22 secured to the out~ide face 23 of the door 17. An anchor plate 24 is provided at the upper left hand corner of the handle frame, to which is pivotally mounted a release lever 25 by a pin 26. The lower end of the release lever is provided with a guide leg 27 and a locking plunger 28 extending through an aperture 29 in the door 17 to permit locking engagement with a lock (not shown) on the frame of access opening 14. Secured within the handle frame is a closure plate 30 which normally closes vent holes 31 but 9 when the plunger 28 is withdrawn from aperture 29, is drawn away from vent holes 31. Plunger ~8 is urged ~o locking engagement by compression spring 32. The withdrawing movement of the plunger is stopped by stopper 33. ~ `
In use, the clothes to be dried are placed in the drying - chamber lOa. If the wet clothes are of a nature to be hung on a hanger, they are so hung and then the hanger is hung on the hooks 15. The ; access door is closed and, when so closed, conventional means (not shown) th~n permit the vacuum pump 20 to be actuated to place the drying chamber lOa under vacuum.
After a predetermined period o~ time, the clothes are dried.
The vacuum pump is turned of~. The handle is grasped by the release lever. Movement of the release lever pulls the plunger out of locking engagement, opens vent holes 31 to break the vacuum and en-ables the door 17 to be opened.
, ~.. .. . . .
.: . - . :, . . . ,, , . , , ~ ~ : ,:
, :: : : : . . . , , , , ., ., : , .
"' '. ' ' '' '` ` : '''''.`- " ,' '` " ' ' ~ : " ~ '.: ' : ' .- ` ' ., , , . . :.
This invention relat~s to a clothes dryer ~hich is adapted to dry clo~hes without the addition of heat.
It i8 well known that clothes may be dried by the appllcation of heat thereto in electrically-heated or gas-heated clothes dryers.
Not only is there a considerable expenditure of energy required to heat Y the clothes to a sufficiently high temperature that the clothes will dry, but the heat in the exhaust from such dryers i9 lost. Moreover, since these dryers t~mble the clothe~, the clothes, when they are removed, are wrinkled and generally must be ironed.
It is well known that the boiling point of a liquid i9 decreased wi~h a decrease in ambient pressura. Thi8 well-known thermo-dynamic fact has been applied in many patents. For example, in Canadian Patent No. 322,144 i~sued May 3, 1932 to W. Muller et al, an apparatus is provided to assist in the preparation of bread. The apparatus includes a vacuum chamher having one or more air-tight and lockable access doors therein with means for supporting freshly baked bread within the chamber. A contenser i8 connected to the chamber and~a - .
vacuum pump i~ coupled~to the condenser. Drainage and control means ,. .
are connected to the chamber ~nd to the condenser. A pressure release : .
valve and a vacuum indicating gauge are also connected to ~he chamber.
~ In another patent, Canadian Pa~ent No. 372,845 issued March 30, - 19~8 to~.L. Flelsher, an`appara~us i8 provided for cooling bread.~ The appsratu~ includes a plurality of chambers, each having closure means - .
and mean~ for the autom-tic locklng thereof. A vacuum pump is provided~
along with distributor means for automatically connecting and di3conneo-ting the~pump with the chambers i~ timed relatlon and f~r breakin~ ~he~
vacuum~in the chamber~ without affecting the operation ~f the pump.
Thus, whIle these patents taught the drylng of~a material, e~g.
bread, using a vacu ~ chsmber and while they appreciated the necessity 30 ~ of breaking~the~vaeuum, t~ere was teachi~g of means positively .
`` lL~97~97 interrelating the breaking o the vacuum with the opening of the doors.
Such means i9 a valuable safety factor for a home-use dryer as diætinct from an lndustrial dryer.
Consequently, an object of a broad aspect of this invention is the provision of a clothes dryer which dries clothes by vacuum without the use of heat and including means positively interrelating the breaking of the vacuum with the opening of the access door.
By one broad aspect of this invention, then, a no-heat clothes dryer is provided co~prising: (a) a drying chamber having an access opening; (b~ an access door to the drying chamber, the door being adapted ~o close the access opening in an hermetically sealed manner; (c) means, adapted to be actuated only when the door is closed, to sub~ect the interior of the drying chamber to a vacu~n; and (d) means positively interrelating the breaking of the vacuum with the opening of the access door, the means comprising a door handle including a lever which is pivotally mounted to move between a closed position, where it locks the door in a closed position, and an open position, where it simultaneously opens vents to the interior of the drying chamber, thereby to break the vacuum, and unlocks ~he door to enable opening thereof.
By a variant thereof, the perimeter of the access opening is provided with one-half of a magnetic gasket, and the perimeter of the door is provided with a cooperating one-half of a magnetic gasket.
By another variant, the door handle comprises: ~i) a main framework; (ii) an anchor plate at one corner thereof; (iii) a release lever pivotally secured to the anchor plate; (iv) a plunger extending through the door, and connected to the free end of the release lever normally resiliently urged to come into locking engagement with a lock on the door frame; and (v) means associated with the movement of the plunger out of locking engagement with the lock to open vent means in the door.
~7~3~
` By ~et another Yariant, the clothes dryer includes hooks within the drying chambar for the hanging of clothes to be dried.
Thus, by the present invention in one of its variants, a "no-heat" clothes dryer is provided, the drying being achieved by a decrease in pressure. To achieve this according to one embodiment of this invention, an enclosed space is provided with a vacuum pump to facilitate the creatio~ of a partial vacuum in the interior. With the vacuum unit, the pressure of the cabinet will be reduced substantially after the clothe~ are put in. Although this will use a mlnute fraction of the energy required for the heati~g and air blowing of the conven-tional type, it will efficiently dry the clothes without tumbling, whlch al90 reduces or nullifies the energy and time required for presslng.
In the accompany~ng drawing, Figure 1 is a vertical cross-sectional uprigh~ view of the clothes dryer o~ an aspect of this invention; and Figure 2 is a vertical cross-sectional viPw of the door and ; lock mechanism of the clothes dryer of an aspect of this lnvention.
`~ ~ As seen in Figure 1,~ the clothes dryer 10 is a generally ~ ~ ~ rectangular parallelepiped box lOa including top 11, bottom 1-2j back 13 : - -, -: - :
20~ ~ and an access opening 14. Secured to the top 11 is a plurality of hooks 15 by which clothes~ to~be-dried may be hung up on hangers. Extending ` around~the~perime er of the access opening 14 is one-half of a magnetic gasket 16.~
A door 17 i8 provided which is hinged to the sccess opening 14 ~- in the usual manner (not shown). Extending around`the perimeter of the .
door~l7 is the~mating half of a =gnetic gasket 18, in order that the door 17 whe~ clooedj close~ehe clothes dryer 10 in an her~etic m~nner.
The exhaust l9 is connected to a source of vacuum. As shown in~Figuse 1, the source of vacuum is provided by a vacuum pump 20 dis-3~ posed within the box lOa.
AB shown in~Flgur2~2~, a door h~ndle 21 i5 provided whic~
~ : .:, -- . : - .
'. . .
~:97~
positiYel~ interrelates th~ hreaking of the vacuum with the opening of the access door 17. The handle 21 includes a framework 22 secured to the out~ide face 23 of the door 17. An anchor plate 24 is provided at the upper left hand corner of the handle frame, to which is pivotally mounted a release lever 25 by a pin 26. The lower end of the release lever is provided with a guide leg 27 and a locking plunger 28 extending through an aperture 29 in the door 17 to permit locking engagement with a lock (not shown) on the frame of access opening 14. Secured within the handle frame is a closure plate 30 which normally closes vent holes 31 but 9 when the plunger 28 is withdrawn from aperture 29, is drawn away from vent holes 31. Plunger ~8 is urged ~o locking engagement by compression spring 32. The withdrawing movement of the plunger is stopped by stopper 33. ~ `
In use, the clothes to be dried are placed in the drying - chamber lOa. If the wet clothes are of a nature to be hung on a hanger, they are so hung and then the hanger is hung on the hooks 15. The ; access door is closed and, when so closed, conventional means (not shown) th~n permit the vacuum pump 20 to be actuated to place the drying chamber lOa under vacuum.
After a predetermined period o~ time, the clothes are dried.
The vacuum pump is turned of~. The handle is grasped by the release lever. Movement of the release lever pulls the plunger out of locking engagement, opens vent holes 31 to break the vacuum and en-ables the door 17 to be opened.
, ~.. .. . . .
.: . - . :, . . . ,, , . , , ~ ~ : ,:
, :: : : : . . . , , , , ., ., : , .
"' '. ' ' '' '` ` : '''''.`- " ,' '` " ' ' ~ : " ~ '.: ' : ' .- ` ' ., , , . . :.
Claims (4)
1. a "no-heat" clothes dryer comprising:
(a) a drying chamber having an access opening;
(b) an access door to said drying chamber, said door being adapted to close said access opening in an hermetically sealed manner.
(c) means, adapted to be actuated only when said door is closed, to subject the interior of said drying chamber to a vacuum;
and (d) means positively interrelating the breaking of the vacuum with the opening of said access door, said means comprising a door handle including a lever which is pivotally mounted to move between a closed position where it locks the door in a closed position and an open position where it simultaneously opens vents to the interior of the drying chamber thereby to break said vacuum, and unlocks the door to enable opening thereof.
(a) a drying chamber having an access opening;
(b) an access door to said drying chamber, said door being adapted to close said access opening in an hermetically sealed manner.
(c) means, adapted to be actuated only when said door is closed, to subject the interior of said drying chamber to a vacuum;
and (d) means positively interrelating the breaking of the vacuum with the opening of said access door, said means comprising a door handle including a lever which is pivotally mounted to move between a closed position where it locks the door in a closed position and an open position where it simultaneously opens vents to the interior of the drying chamber thereby to break said vacuum, and unlocks the door to enable opening thereof.
2. The clothes dryer of claim 1 wherein the perimeter of said access opening is provided with one-half of a magnetic gasket, and wherein the perimeter of the door is provided with a cooperating one-half of a magnetic gasket.
3. The clothes dryer of claim 1 wherein said door handle com-prises:
.
(i) a main framework;
(ii) an anchor plate at one corner thereof; ~ :
(iii) a release lever pivotally secured to said anchor plate;
(iv) a plunger extending through said door, and connected to the free end of said release lever normally resiliently urged to come into locking engagement with a lock on said door frame;
and (v) means associated with the movement of said plunger out of locking engagement with said lock to open vent means in said door.
.
(i) a main framework;
(ii) an anchor plate at one corner thereof; ~ :
(iii) a release lever pivotally secured to said anchor plate;
(iv) a plunger extending through said door, and connected to the free end of said release lever normally resiliently urged to come into locking engagement with a lock on said door frame;
and (v) means associated with the movement of said plunger out of locking engagement with said lock to open vent means in said door.
4. The clothes dryer of claims 1, 2 or 3 including hooks within the drying chamber for the hanging of clothes to be dried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA300,026A CA1071397A (en) | 1978-03-30 | 1978-03-30 | No-heat clothes dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA300,026A CA1071397A (en) | 1978-03-30 | 1978-03-30 | No-heat clothes dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1071397A true CA1071397A (en) | 1980-02-12 |
Family
ID=4111107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA300,026A Expired CA1071397A (en) | 1978-03-30 | 1978-03-30 | No-heat clothes dryer |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1071397A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2074923A1 (en) * | 2007-12-27 | 2009-07-01 | Daewoo Electronics Corporation | Gasket |
-
1978
- 1978-03-30 CA CA300,026A patent/CA1071397A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2074923A1 (en) * | 2007-12-27 | 2009-07-01 | Daewoo Electronics Corporation | Gasket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |