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Class 34/260 - Clothes dryer


Subclass of Class 34 - Drying and gas or vapor contact with solids
Definition: Subject matter wherein the microwave dryer is used for removing
No. of patents: 22
Last issue date: 12/12/2006


NumberTitleIssue Date
7148455Microwave moisture analyzer: apparatus and method
The invention includes a toploading weighing instrumentality which determines loss on drying by a cylindrical microwave. The cylindrical cavity of the microwave includes a power supply, a magnetron, a power module operatively coupled between the power supply and the...
12/12/2006
7096599Household appliance
A household appliance (1) e.g a washer-dryer, comprises an enclosure (2) into which objects to be heated are placed, a magnetron (4) for generating microwaves, a waveguide (3) for feeding the generated microwave into the enclosure, an arc...
08/29/2006
7080464Detection of synthetic fabric loads in an automatic dryer
A method for detecting the presence of a synthetic fabric load during an automatic drying cycle in an automatic dryer avoids premature termination of the automatic drying cycle and ensures that the synthetic fabric items are dried according to a user's desired dryne...
07/25/2006
7062863Washing machine and method of controlling drying process thereof
A washing machine and method of controlling a drying process thereof is provided. The washing machine includes a water temperature detecting unit and a controller. The water temperature detecting unit is disposed in a condensing duct to detect temperatures of conden...
06/20/2006
6505418Apparatus and method for a clothing dryer having a fire protection system
A clothes dryer having a fire protection system. The clothes dryer chamber has an inlet which receives drying air and an exhaust for removing moisture laden air. The temperature within the drying chamber is monitored, and a determination is made from the ...
01/14/2003
6405453Material drying arrangement
An arrangement for drying material in a selected drying location by a heated and flowing drying stream wherein the temperature and relative humidity levels of the drying stream are sensed upstream and downstream of such selected drying location and are re...
06/18/2002
6401357End of cycle detector and method for microwave clothes dryer
End of cycle detector and method for a microwave clothes dryer. The temperature of fabric in the dryer is monitored, an increase in the monitored temperature is detected when substantially all moisture has been removed from the fabric, and operation of th...
06/11/2002
6393725Compact microwave clothes dryer and method
Compact microwave clothes dryer and method in which the dryer is small enough to be placed on a countertop, and air is circulated past microwave generator and power supply components to the drying chamber to transfer heat from the components to clothes in...
05/28/2002
5661227Moisture sensor for microwave clothes dryer
Microwave clothes dryer with a moisture sensor having an array of short coaxial cables extending through an electrically conductive base plate which is grounded to the shielding structure of the dryer. The ends of the cables are flush with one side of the...
08/26/1997
5606804Microwave clothes dryer and method with hazard detection
Microwave clothes dryer and method in which an impending fire and/or explosion is detected by monitoring gases from the drying chamber with a solid state gas sensor to detect the presence of a gas associated with fire or an explosion. In the disclosed emb...
03/04/1997
5483045Microwave power system and method with exposure protection
System and method for interrupting the delivery of microwave power to a microwave cavity when a door to the cavity is opened and an interlock switch fails to operate. A switch actuated by movement of the door applies an overload current to an overload pro...
01/09/1996
5463821Method and apparatus for operating a microwave dryer
A method and apparatus for operating a microwave dryer having a rotating drum with radially inwardly extending baffles for tumbling and turning over clothes, the baffles housing microwave magnetron tubes for emitting microwaves into the drum. Air can be c...
11/07/1995
5424515Method and apparatus for the prevention of scorching of fabric subjected to microwave heating
The present invention features a UV tube detector for sensing a resonant arcing condition in a microwave environment. Where clothing or fabric is being dried in a magnetron-powered, microwave chamber, the UV tube detector is placed in proximity to the fab...
06/13/1995
5325600Method and apparatus for the prevention of scorching of fabric subjected to microwave heating
The present invention features a UV tube detector for sensing a resonant arcing condition in a microwave environment. Where clothing or fabric is being dried in a magnetron-powered, microwave chamber, the UV tube detector is placed in proximity to the fab...
07/05/1994
5321897Fabric dryer with arcing avoidance system
A fabric dryer employs microwave energy and an auxiliary air convection heater to heat the moisture in the fabric to be dried and provides for control of the microwave energy so that no arcing of metal or other electrically conductive parts occurs as the ...
06/21/1994
5315765High-efficiency fabric dryer
A fabric drying system has an exterior housing and a rotating chamber for containing fabric laden with moisture that is to be dried and uses a combination of microwave energy and an auxiliary convection air heater to heat and vaporize the moisture and exp...
05/31/1994
5270509Microwave clothes drying system and method with improved arc detection
Microwave drying system and method in which arcing is detected by a sudden drop in electric field strength within the drying chamber. An electric signal corresponding to field strength is provided and, in one disclosed embodiment, is compared with a refer...
12/14/1993
5220813Unified washing-drying machine
In a unified washing-drying machine, the use of conventional drying means is eliminated and, instead, an electromagnetic heating system is provided at an appropriate place in the unified washing-drying machine as a means to thermally evaporate the remaini...
06/22/1993
4896010Microwave drying & sanitizing of fabric
The invention features a sanitization method and apparatus utilizing multiple microwave sources. Bacteria are killed by the combination of microwave heated water vapor, which is allowed to accumulate within the sealed chamber, and the microwave field effe...
01/23/1990
4771156Method and apparatus for heating and drying moist articles
The invention relates to a microwave heating method and apparatus utilizing a multiplicity of microwave propagating sources positioned about a heating chamber. The microwave energies are optimized to provide a greater uniformity in the heating of articles...
09/13/1988
4490923Microwave clothes dryer
A clothes dryer comprising a stationary container with means for the passage of air therethrough, and a source of electromagnetic energy for generating microwaves through the clothing to dry the latter. A microwave stirrer in the magnetron wave guide rand...
01/01/1985
4250628Microwave fabric dryer method and apparatus
A dryer in which fabrics are dryed quickly and at low temperature by subjecting them to microwave energy in an atmosphere of reduced pressure. The microwave energy elevates the temperature of the water within the fabric to its boiling point, which is quit...
02/17/1981
 
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