Class 34/513 - Heat conserving

Subclass of Class 34 - Drying and gas or vapor contact with solids
Definition: Process including steps for preserving heat.
No. of patents: 38
Last issue date: 04/10/2012

Number	Title	Issue Date
8151483	Progressive dewatering and inhibitor dispersal rolling pig A method for progressively dewatering a pipe or pipeline includes the use of a loose-fitting spherical- or quasi-spherical shaped pig body which rolls forward through the interior space of the pipe and temporarily captures and redistributes a portion of the volume o...	04/10/2012
7197838	Condensing-type dryer A condenser of a condensing-type dryer is provided. In the condensing-type dryer, a hydrophilic film is formed on a heat emission plate by a plasma discharge. In the heat emission plate, an indoor air can be heat exchanged with a circulation air cycling in a drum. A...	04/03/2007
6953516	Process for making throughdried tissue by profiling exhaust gas recovery The energy efficiency of a throughdrying papermaking process is improved by recycling exhaust gas from one or more throughdryers prior to throughdrying to profile the consistency of the web. ...	10/11/2005
6944969	Method and installation for drying a mass of fibrous materials by mechanical compression of very moist air The present invention pertains to a method and an installation or system for drying fibrous material. The method comprises the step of ventilating very moist air through the fibrous material located in a drying zone. The moisture content of the moist air is less tha...	09/20/2005
6742283	Wood drying method Method for drying wood in a short period of time by maintaining the concentration of a combustion gas contained in a drying room atmosphere for use in drying the wood to a high value and by maintaining the pressure of the drying room atmosphere to a high value. Wood...	06/01/2004
6551461	Process for making throughdried tissue using exhaust gas recovery The energy efficiency of a throughdrying papermaking process is improved by recycling exhaust air from one or more throughdryers to further heat the web at various places in the process....	04/22/2003
6029370	System and method for drying sludge using landfill gas A system and method using landfill gas to dry wet sludge to inexpensively produce fertilizer or dry waste for disposal, while acting to conserve natural gas resources. The system and method are expected to provide dry sludge as an end product at approxima...	02/29/2000
5666739	Energy conservation coupler The electric clothes dryer is a valuable convenience appliance in our life style. For half of a century its usefulness has been enjoyed through the availability of inexpensive electric energy. But, it is a wasteful energy device. Not much has been done to...	09/16/1997
5555645	Reversing clothes dryer and method therefor A domestic clothes dryer is operated in both a forward and a reverse direction. The dryer blower has a reduced air flow rate in the reverse direction. The reduced air flow in the reverse direction and the reverse tumbling increases the heat transferred to...	09/17/1996
5519948	Process for the production of granules suitable as wetting agents, detergents and/or cleaning products A process for the production of pourable, free-flowing granules which are suitable for use as wetting agents, detergents or cleaning products from aqueous solutions or suspensions of such materials in a fluidized-bed spray granulation apparatus employing ...	05/28/1996
5007180	Method of and an apparatus for the separation of condensable harmful substances In the case of a method of separating condensable harmful substances and solid particles from the process gas or used air from particularly a textile finishing plant such as for example a drier or a coating plant, for example in the paper or synthetic pla...	04/16/1991
4973484	Roller mill grain preheating An energy efficient steam rolled grain mill includes a preheater chamber, a steam chest, a roller mill and a cooler and dryer chamber. The cooler and dryer chamber is in direct head exchange relationship with the preheater chamber....	11/27/1990
4972605	Insulation system for clothes dryer apparatus The exterior/interior system for insulating the walls, top, and floor of a typical gas or electric dryer of the type having an interior drum which rotates, and in which electric or gas heat is provided into the drum, for drying the clothes contained withi...	11/27/1990
4878299	Insulating apparatus for thermally insulating a dryer head An insulating apparatus is disclosed for thermally insulating a dryer head journalled in a dryer section of a papermaking machine. The apparatus includes a stationary insulator having a disc-shaped configuration. The insulator defines a central bore for t...	11/07/1989
4760650	Method of drying particulate material The invention relates to a method of drying a particulate material which is thereafter to be heat-treated, the material and a gaseous drying medium being brought in contact with each other in a drying apparatus, where water is made to pass from the materi...	08/02/1988
4689894	Closed intermittent drying process A closed intermittent process for drying a moist material, in which process gas is circulated internally for transporting vapour formation heat and water vapour out of the material, the water vapour being condensed from a cooled mixture of gas and water v...	09/01/1987
4683664	Apparatus for drying metal turnings or scrap Apparatus for the drying of ferrous or non-ferrous turnings or scrap comprises a vertical axis drier (1) in which a drum (2) which encloses a transporter (3) for the turnings in question is mounted transversely. The turnings are heated indirectly via the ...	08/04/1987
4656756	Method for heat-treating textile material and tenter for carrying out method For a method for heat-treating textile material, and for a tenter for carrying out the method, it is proposed to control the textile web velocity as a function of the point on the treatment path at which the maximum deviation in the amount of energy spent...	04/14/1987
4646447	Process and plant for continuous drying using heat pumps A process and a plant for continuously drying products with the use of increasing temperatures towards the end of the drying process, the drying process using the so-called multiple transverse stirring. There is admitted in the zone of completion of the d...	03/03/1987
4585543	Method for recovering hydrocarbons from solids A system is provided for recovering hydrocarbons from hydrocarbon-containing solids such as oil shale, tar sands or coal. The process includes preheating finely divided solids prior to introduction to a low residence time tubular reactor where a portion o...	04/29/1986
4531304	Production of concrete articles utilizing heat-reclaiming system A method of producing concrete articles comprises reclaiming a portion of the heat energy from the kiln atmosphere during the curing of the concrete articles, and then utilizing the reclaimed heat energy to pre-heat mixing water used to form other concret...	07/30/1985
4513514	Apparatus and method for the heat treatment of yarn An energy efficient apparatus and method for the continuous heat treatment of a carpet yarn or the like is disclosed, and which includes a conveyor extending through a heat treatment chamber, and with the conveyor comprising a number of endless belts whic...	04/30/1985
4454660	Attachment assembly for mounting an insulating blanket on a dryer cylinder A mounting assembly for securing a thermal insulating blanket to an end of a heated cylinder in a papermaking machine. The assembly includes a clamp positionable on heads of bolts used to secure peripheral portions of the cylinder end to a cylindrical mai...	06/19/1984
4441260	Process and apparatus for dehydrating organic solid material A process for dehydrating water-containing organic solid material which comprises steps of introducing the material into a pressure vessel, applying saturated steam to said vessel to heat the material so that water in the material be removed and mixed wit...	04/10/1984
4375959	Waste heat recovery in asphalt mixing plant In an asphalt mixing plant, a portion of the heat used to vaporize water in the process of drying aggregate is recovered by conducting dryer exhaust gases through parallel ducts which extend serially through the aggregate cold feed bins. These parallel du...	03/08/1983
4351118	Apparatus and method for continuously treating yarn Indefinite strand yarn is steam and heat treated in an enclosure. The yarn travels in an indefinite length moving coil through a tunnel that extends through the enclosure, with steam being supplied to the enclosure and the exhaust pipes leading from adjac...	09/28/1982
4324051	Process and apparatus for recovering heat from finely to coarsely divided material having high temperature A process and an apparatus for recovering heat from a finely to coarsely divided hot material, such as carbide crushed on solidification, which contains particles and lumps of varying sizes. The hot material is separated by a classifier into a portion of ...	04/13/1982
4292742	Plant for drying fuel Fuel and additional material are dried prior to entering the combustion chamber of a thermal power plant using drying chambers having fluidized beds. The heat required for drying is extracted from the hot ashes from the power plant by means of an oxygen-p...	10/06/1981
4280415	Method and apparatus for drying and processing moisture-containing solids A method and apparatus for drying and processing moisture-containing solids comprising organic and/or mineral inorganic components, wherein a maximum utilization of energy is attained by providing for an energetic cross-linkage between the drying and subs...	07/28/1981
4240581	Heating system and method utilizing recoverable engine heat A heating system and method are provided in which a defined area to be heated or to be used for drying crop material may be connected through adjustable ducting to either a primary heat source, such as an oil or gas furnace, or to an alternate heat source...	12/23/1980
4204338	Laundry dryer An improved laundry dryer having a novel hot air compartment structure that heats recirculated exhaust air and fresh make-up air. The novel hot air compartment structure, in preferred form, includes an attic chamber defined by the dryer's housing. The att...	05/27/1980
4189848	Energy-efficient regenerative liquid desiccant drying process This invention relates to the use of desiccants in conjunction with an open oop drying cycle and a closed loop drying cycle to reclaim the energy expended in vaporizing moisture in harvested crops. In the closed loop cycle, the drying air is brought into c...	02/26/1980
4142302	Multiple bin heat recycled grain drying An improvement in the method of grain drying wherein grain is dried in a first drying bin and removed to a holding bin, the improvement comprising withdrawing hot air from the holding bin and circulating the hot air to the drying bin....	03/06/1979
4137645	Laundry dryer A laundry dryer structured to recirculate and reheat a portion of the warm exhaust air, and admix same with newly heated make-up air. A novel hot air compartment positioned within the dryer's housing includes a heat transfer air duct disposed immediately ...	02/06/1979
4133636	Tentor An oven for treating web stock, especially a tentor for treating textile fabric, to remove volatile combustible substances therefrom in a manner that results in more rapid operation with less capital outlay for equipment, less fuel consumption, and contro...	01/09/1979
4115052	Web stock treating oven Oven apparatus for heat treating web stock, especially a tentor for treating textile fabric, to remove volatile, combustible substances therefrom. The oven has a preheating entry section, a post-heating exit section, and intermediate sections, there being...	09/19/1978
4086705	Dry cleaning system with solvent recovery Petroleum solvent vapors which discharge from a dry cleaning dryer in a heated gaseous mixture of vapors and air are condensed and recovered, and heat energy is recovered for productive use elsewhere. The gaseous mixture of vapors and air is sprayed with ...	05/02/1978
4034482	Heat recovery system A system, process and coupling device for variably and selectively directing hot exhaust gases of a clothes drier into a heat recovery system wherein the heat recovered is introduced into the return air duct of a home heating system or into a venting syst...	07/12/1977

PatentStorm

Bizarre Patents

PatentStorm News

Class 34/513 - Heat conserving