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| Number | Title | Issue Date |
| 6926522 | Method and apparatus for preheating particulate material An apparatus for preheating particulate material in which the particulate material is transferred from one or more upper storage bins to a circular lower chamber that has an outer, essentially annular, portion which serves as a gas flow passage. The particulate mate... | 08/09/2005 |
| 6644962 | Heating furnace having heat regenerating burners and operation method thereof A method of controlling a furnace pressure for preventing air from intruding to a heating furnace, a method of stable operation during low combustion load of heat regenerating burners and a method of measuring concentration of an atmospheric gas in a heat... | 11/11/2003 |
| 6270305 | High temperature conveyor furnace with low friction conveyor travel surface A high-temperature conveyor furnace with a low friction conveyor travel surface is provided. The furnace includes a muffle defining a heating chamber, hearth plates providing a hearth surface within the heating chamber, and a conveyor belt to convey produ... | 08/07/2001 |
| 6230956 | Soldering conveyor support A conveyor support for integrated circuits in an on-line oven, including a mechanism for driving and guiding the elements to be soldered while maintaining a lower surface of one of said elements in direct contact with a wall of the oven.... | 05/15/2001 |
| 5848890 | Furnace product transport system This invention involves a transport system for moving work products through a furnace or kiln. The structure is simple in construction and moves easily along two grooves or channels provided at both sides of the product supporting structure. The supportin... | 12/15/1998 |
| 5722825 | Device for heat-treating metallic work pieces in a vacuum A device for heat-treating metallic workpieces in a vacuum has a revolving vacuum furnace with an inlet transfer lock for introducing a batch of workpieces into the revolving vacuum furnace and with an outlet transfer lock for removing the batch of workpi... | 03/03/1998 |
| 5697777 | Curing device A curing device for drying bonding material used for bonding, for example, chips to a lead frame for semiconductor devices including a workpiece heating chamber casing having heating blocks for heat-drying the bonding material and a gas supply chamber cas... | 12/16/1997 |
| 5619934 | Waste car disposer A waste car disposer which includes a plurality of tunnel-like furnaces connected in series and separately controlled to heat waste cars at different temperatures so that plastic, rubber, glass, lead, zinc, nickel, copper, iron and steel parts of waste ca... | 04/15/1997 |
| 5489204 | Apparatus for sintering abrasive grain An apparatus useful for sintering unsintered abrasive grain precursor to provide sintered abrasive grain. The sintered abrasive grain can be incorporated into abrasive articles such as bonded abrasives (e.g., grinding wheels), coated abrasives, and nonwov... | 02/06/1996 |
| 5478442 | Treatment of petroleum cokes with a puffing inhibitor in a rotary calciner A rotary hearth calciner for treating petroleum cokes with a puffing inhibitor has a horizontal or inwardly sloping hearth floor rotatable around a vertical axis for receiving particles of coke to be calcined and a central opening in the hearth floor for ... | 12/26/1995 |
| 5446263 | Device for setting the temperature of a sample selectively to different values Device for setting the temperature of a sample selectively to different ves comprising a sample holder block having good thermal conductivity properties and at least one recess (14) for receiving a sample whose temperature is to be adjusted, and a device... | 08/29/1995 |
| 5350295 | Method for producing different kinds of heat-treated products A method for producing a plurality of kinds of heat-treated products economically and efficiently and with minimum sorting errors, using fewer number of heating devices than pre-treatment and post-treatment devices. Pre-treatment devices (e.g., compacting... | 09/27/1994 |
| 5340399 | Apparatus for the heat treatment of ophthalmic lenses, especially contact lenses In an apparatus for the heat treatment of ophthalmic lenses, especially contact lenses, which comprises an approximately cylindrical housing of closed design having an inlet opening and an outlet opening, transport device for transporting the ophthalmic l... | 08/23/1994 |
| 5207578 | Heat processing apparatus of vertical type A heat processing apparatus of the vertical type includes a box which has a process tube in the upper half thereof and a space in the lower half thereof. A cap for the process tube can be moved up and down between an upper position where the cap closes th... | 05/04/1993 |
| 5044944 | Furnace of decreasing oxygen concentration to ultra low amount A furnace of decreasing oxygen concentration to ultra low amount is basically characterized by providing a furnace body divided into a plurality of zones, a device for supplying a non-oxidizing or a reducing atmospheric gas into each of the zones so as to... | 09/03/1991 |
| 4981436 | Vertical type heat-treatment apparatus A vertical type heat-treatment apparatus of the invention has an adjusting mechanism capable of setting the flow rate of clean air flowing out from a first clean room to a second clean room to be a predetermined value. With this arrangement, the apparatus... | 01/01/1991 |
| 4900247 | High-temperature heating furnace In a high-temperature heating furnace, its central longitudinal passage in which articles to be heated are placed, and its inner support which makes a space between its inner surface and the above-mentioned passage for accommodating heaters therein and wh... | 02/13/1990 |
| 4795341 | Method and tunnel furnace for sintering blanks Method for sintering blanks into fuel pellets, in which the blanks are moved through the muffle of a tunnel furnace by pushing the blanks through the muffle on a guiding device which goes through the muffle and protrudes therefrom at least on the input si... | 01/03/1989 |
| 4764109 | Heat treating, curing or stress relieving furnace An oven for heat treating, curing, stress relieving or otherwise treating objects within the oven has side walls that can be moved into contact and out of contact with side edges of a movable floor. All interior surfaces of the oven are insulated and, whe... | 08/16/1988 |
| 4669977 | Rotating rabbled roof drying and heating furnace Apparatus for drying and heating wet particulate materials comprises a furnace with stationary circular hearth and sidewalls and a rotating roof. The hearth is perforated to receive hot gases from a plenum chamber below it, which gases are drawn off from ... | 06/02/1987 |
| 4591336 | Oven for curing resin-coated wires Wires having an adherent coating of resin are passed through individual, segregated chambers in a convection oven where the resin is cured; if a wire fails to feed, heat to the chamber for that wire is discontinued and its chamber is cooled by a draft of ... | 05/27/1986 |
| 4568279 | Muffle furnace for continuous heat treatment This invention relates to a muffle furnace, for continuous heat treatment during passage of material therethrough, of products, the production cycle of which includes a treatment of predetermined duration at a temperature which may be about 1100° to abou... | 02/04/1986 |
| 4540364 | Pusher-type furnace The material to be processed through a furnace is carried on skid rails by sliding shoes. In order to reduce the friction between the skid rails and the sliding shoes, and the breakaway forces at the start of the pushing motion, slip plates are fitted in ... | 09/10/1985 |
| 4416623 | Muffle furnace Muffle furnace having an elongated metallic muffle extending through several heating zones of the furnace. Temperature of muffle is measured at different parts thereof. In order to minimize the difference of temperature which causes the deformation of muf... | 11/22/1983 |
| 4400155 | Equipment for heating pulverulent products Equipment for heating pulverulent products, including a relatively flat, vertically standing vessel for receiving the product, and a rotatable agitator whose axis of rotation is coincident with the longitudinal axis of the vessel. There are heating facili... | 08/23/1983 |
| 4383378 | Secondary dryer for free water detector pads A secondary dryer device comprising a drying oven, for subjecting open containers of water detector pads to a secondary drying operation. The oven has a pair of elongate channels disposed side by side with open, outer-most ends and blind inner-most ends. ... | 05/17/1983 |
| 4255129 | Apparatus and method for processing organic materials into more useful states A method for processing various organic materials such as lignocellulosics or biomass into more useful states, such as charcoal, carbon black, and coke, and other processed products while producing useful off-gases, includes feeding aggregate pieces of th... | 03/10/1981 |
| 4136624 | Incinerator for refuse in containers and method of incineration therefor An incinerator is provided with water cooled nozzles for blowing pressure air into refuse in open-topped containers, fuel burners for heating the containers from the outside, a water cooled grate and doors at the inlet and outlet of the incinerator. The c... | 01/30/1979 |
| 4125365 | Roll through billet heater An apparatus for heating billets and the like prior to hot extrusion is disclosed. The apparatus includes an elongated, insulated tunnel having an inlet opening and an outlet opening. A conveyor extends through the tunnel from the inlet to the outlet and ... | 11/14/1978 |
| 4106893 | Sintering furnace A sintering furnace for sintering magnetic-ceramic articles is in the form of a quick-firing carriage furnace having a cooling system for indirect cooling in a cooling zone, having a sluice chamber at its outlet-end and being gastight at its base.... | 08/15/1978 |
| 4069010 | Kiln for ceramic products A kiln of relatively simple design and low-cost construction is provided for firing ceramic ware. The kiln is of the shuttle type consisting generally of a rectangular enclosing structure with a movable floor which may consist of cars for supporting the w... | 01/17/1978 |
| 4039278 | Bakery oven A tunnel oven for bakery purposes has a plurality of horizontally- and vertically-spaced hot air supply orifices in each of its vertical walls. At least some and preferably all such orifices are individually adjustable slots. Each wall also has air extrac... | 08/02/1977 |
| 4033715 | Heat processing system A heat processing system in which a product is efficiently conveyed through a high temperature furnace and in which the product can be stored within a section of the furnace at a temperature less than the critical temperature to which product exposure mus... | 07/05/1977 |
| 4022570 | Warm form cooling and heat recovery tunnel A heat transfer apparatus for controlling the temperature of a formed workpiece is provided. The apparatus is in the form of a multi-tier rotary preheat, quench and heat recovery tunnel which provides for transfer of heat between tiers from workpieces to ... | 05/10/1977 |
| 3994678 | Heater for billets An apparatus for heating materials such as aluminum billets to a temperature suitable for extrusion is disclosed. The apparatus has at least two zones arranged in tandem, a preheat zone and one or more primary heating zones. Every zone has inner and outer... | 11/30/1976 |
