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Class Information
Number: 34/524
Name: Drying and gas or vapor contact with solids > Apparatus > With automatic control
Description: Apparatus combined with means to sense a condition or change of condition and cause a control operation, including timing means which is other than the drive means for the machine.


Sub-classes under this class:

Class Number Class Name Patents
34/525 By web breaking 6
34/557 Of contacting gas humidity 44
34/565 Of flow of gas or vapor treating fluid 60
34/548 Of gas mixing 30
34/558 Of gas or vapor pressure in treating enclosure 34
34/549 Of heater 63
34/526 Of plural operations 37
34/560 Of rate of treated material motion 30
34/572 Of starting or stopping 48
34/562 Of time period 51
34/573 Of treated material feeding or discharging 27


Patents under this class:
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Patent Number Title Of Patent Date Issued
7609491 Clothes dryer motor with broken belt switch Oct. 27, 2009
7565752 Automatic ground surface dryer and method Jul. 28, 2009
7343695 Vacuum drying apparatus and vacuum drying method Mar. 18, 2008
7066412 Apparatus, methods, and compositions for adding fragrance to laundry Jun. 27, 2006
6874250 Clothes dryer Apr. 5, 2005
6868623 Process for controlling the temperature of a web and a device to use for said temperature control Mar. 22, 2005
6845290 System and method for controlling a dryer appliance Jan. 18, 2005
6834443 Full heat moving target grain drying system Dec. 28, 2004
6792331 Method and apparatus for controlling the drying process in a drying section of a paper machine or the like Sep. 14, 2004
6775923 Laundry drier control method Aug. 17, 2004
6722056 Drying vapor generation Apr. 20, 2004
6700102 Dryer control circuit Mar. 2, 2004
6505418 Apparatus and method for a clothing dryer having a fire protection system Jan. 14, 2003
6502581 Method and device for regulating the output humidity of tobacco Jan. 7, 2003
6463674 Hot air impingement drying system for inkjet images Oct. 15, 2002
6440270 Method and apparatus for controlling dryer section of paper machine Aug. 27, 2002
6415528 Drying device for drying bulk material Jul. 9, 2002
6408535 Ozone conversion in semiconductor manufacturing Jun. 25, 2002
6401361 Apparatus and method for drying wafers by a solvent Jun. 11, 2002
6393729 Method, control paradigm and means for monitoring and controlling the process variables of a process gas flowing through a dryer hood used in a drying process May. 28, 2002
6280576 After-dryer in a paper machine Aug. 28, 2001
6143134 Chip spreader for air-lock feeder Nov. 7, 2000
6067845 Method of determining a moisture content of textile goods in a laundry drier May. 30, 2000
5894681 Automated fabrication of corrugated paper products Apr. 20, 1999
5842288 Clothes dryer with chiming alarm Dec. 1, 1998
5682684 Method for controlling drying processes in household washer-dryers Nov. 4, 1997
5659976 Automated fabrication of corrugated paper products Aug. 26, 1997
5659972 Apparatus and method for drying or curing web materials and coatings Aug. 26, 1997
5421097 Temperature control method and drying device for drying a photosensitive material Jun. 6, 1995
5156025 Control apparatus for a laundry washing and/or drying machine Oct. 20, 1992
5152077 Cloth drying machine Oct. 6, 1992
5134788 Dryer apparatus for floating a running web and having an exhaust flow rate control system Aug. 4, 1992
5092959 Organic solvent spray dryer device Mar. 3, 1992
4915154 Counter reflector and method of drying a web with the aid of same Apr. 10, 1990
4738034 Drying machine Apr. 19, 1988
4730401 Drier for a vehicle wash and method of controlling same Mar. 15, 1988
4698767 Apparatus and method for controlling infrared dryer for discreet articles Oct. 6, 1987
4696115 Method and apparatus for drying wet particulate material to a predetermined uniform moisture content Sep. 29, 1987
4685479 Heating hair rollers Aug. 11, 1987
4653202 Movable dryer for the treatment of lumber products Mar. 31, 1987
4653201 Combined mirror and dryer air outlet assembly Mar. 31, 1987
4594266 Process and an apparatus for baking an organic coating which has been applied to a substrate Jun. 10, 1986
4586268 Heat treatment tunnel May. 6, 1986
4499668 Automatic minimum differential pressure control for dryer cylinders Feb. 19, 1985
4498248 Method and device for controlling a continuous heat treatment of a textile fabric web Feb. 12, 1985
4493159 Shrink tunnel with movable gate Jan. 15, 1985
4433492 Hair dryer insert to maintain hair position Feb. 28, 1984
4358192 Apparatus and method for processing heat developed photosensitive recording material Nov. 9, 1982
4327502 Control device for a drying apparatus May. 4, 1982
4312137 Drying device in a sheet-fed rotary printing press Jan. 26, 1982

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