Patents Assigned to Ipsen Industries International Gesellschaft mit beschrankter Haftung
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Patent number: 5417567Abstract: A holder means for the partial thermal treatment in an oven, especially a cuum chamber oven that provides compressed gas quenching, of tools or workpieces, especially drill bits, that have a working portion and a portion that is to be clamped. The workpieces, which are guided by a base plate that is provided with holes, rest upright upon a bottom plate. The base plate is provided with a radiation shield on that side that faces the oven chamber. The upper surface of the radiation shield has a high emission factor for thermal radiation, and the radiation shield is disposed directly on the base plate.Type: GrantFiled: December 3, 1993Date of Patent: May 23, 1995Assignee: Ipsen Industries International Gesellschaft mit beschrankter HaftungInventor: Wolfgang Peter
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Patent number: 5352344Abstract: A probe for measuring oxygen potential, especially to determine the carboransfer properties of a furnace atmosphere containing the gases H.sub.2, CO, and CH.sub.4, with the probe having an oxygen ion conducting, solid measuring electrolyte with a contact electrode in the furnace atmosphere and a contact electrode in a reference medium that has a known oxygen concentration. To improve the accuracy of the measurement, an oxygen ion conductive compensation electrolyte in the form of a detachable solid body is connected between the contact electrode in the furnace atmosphere and the solid measuring electrolyte.Type: GrantFiled: December 8, 1992Date of Patent: October 4, 1994Assignee: Ipsen Industries International Gesellschaft mit beschrankter HaftungInventors: Werner Gohring, Maz Roggatz, Bernd Edenhofer
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Patent number: 5052923Abstract: An oven for the partial heat treatment of tools, for example, twist drills, omprises a first section, which contains the heating chamber that is constantly at the desired operating temperature. A second section for the loading and unloading and the quenching is provided. Between the two sections there is arranged a transport device for the charges of tools. The oven may be in the form of a one-chamber or three-chamber vacuum oven. The oven provides a high heat transfer rate, because the heating chamber is constantly at the desired operating temperature and the heat transfer by heat radiation under vacuum is started immediately when the charge is at its final position inside the heating chamber.Type: GrantFiled: October 12, 1990Date of Patent: October 1, 1991Assignee: Ipsen Industries International Gesellschaft mit beschrankter HaftungInventors: Wolfgang Peter, Bernd Edenhofer
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Patent number: 4881982Abstract: A method for gaseous carburization of steel, where, in a carbon-rich gaseous atmosphere, an article that is to be carburized is, in a first carburization phase, exposed to a carbon charge that is as great as possible, at the black limit, and, in a subsequent diffusion phase, a lower carbon charge that corresponds to the desired carbon content at the surface of the article is established, with carburization being regulated via the two target values carbon content at the surface and depth of carburization. In order, independent of the carbide limit, to provide a regulation with which it is possible to achieve in a straightforward manner, reliably and reproducibly, the desired carbon content curve (carbon profile) in the article, at least one further target value that is characteristic of the carbon content curve is used to regulate the carburization. When this additional target value is reached, the carbon level that characterizes the carburization phase is reduced, and the diffusion phase is initiated.Type: GrantFiled: April 25, 1988Date of Patent: November 21, 1989Assignee: Ipsen Industries International Gesellschaft mit beschrankter HaftungInventors: Bernd Edenhofer, Hans Pfau
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Patent number: 4622006Abstract: A method of heat treating metallic workpieces using a continuous-heating, sher-type, or gravity-discharge furnace having at least two treatment chambers through which the workpieces successively pass. The chambers, which are provided with doors, serve to respectively heat treat a plurality of workpieces charges, with individual ones of the charges being cyclically received by the respective chambers, being conveyed through the latter while heat treatment is undertaken, and subsequently being released by the chambers. Charges requiring different treatment and/or duration, especially different case-hardening depths during carburization in a two-stage process, can be simultaneously treated while fully utilizing the capacity of the furnace by irregularly conveying the charges in at least one of the treatment chambers in such a way that the charges are released by the chamber or chambers after varying retention times.Type: GrantFiled: July 19, 1985Date of Patent: November 11, 1986Assignee: Ipsen Industries International Gesellschaft mit beschrankter HaftungInventor: Paul Hohne
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Patent number: 4304549Abstract: Recuperator burner for industrial furnaces with a central fuel tube which ads the gaseous fuel into a combustion chamber, which tube is concentrically surrounded by a combustion-air supply tube, the outer surface area of the combustion-air supply tube in the area of the recuperator being able to be applied with the exhaust gases which are guided in counterflow through an outer jacket tube and in which combustion-air supply tube there is arranged a first tubular separation wall. The separation wall first guides the combustion-air stream on the way to the combustion chamber along the central fuel tube up to the outlet-side end range of the fuel tube and then redirecting the combustion-air stream in reversed direction.Type: GrantFiled: August 16, 1979Date of Patent: December 8, 1981Assignee: Ipsen Industries International Gesellschaft mit beschrankter HaftungInventor: Hans Pfau
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Patent number: 4278421Abstract: An industrial furnace, particularly a single-chamber vacuum furnace, for heat treatment of metallic workpieces, with a heating chamber which is formed in a housing, which heating chamber is heatable via heating elements and is provided on the bottom and on the ceiling with a closable chamber opening for the passage of a quenching gas which can be circulated by means of a blower. A flap is swingably mounted at the chamber opening underneath a closing slide, which chamber opening is provided for the entrance of the gas. The flap controls the incoming flow of gas within the range of the free cross-section of the chamber opening.Type: GrantFiled: October 15, 1979Date of Patent: July 14, 1981Assignee: Ipsen Industries International Gesellschaft mit beschrankter HaftungInventors: Ferdinand Limque, Hans Bertrand
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Patent number: 4221561Abstract: A vacuum aluminum soldering furnace comprising an evacuatable soldering cber having two lateral heating zones. The soldering chamber has a middle heating zone arranged parallel to the lateral heating zones and the heating element of the middle heating zone is preferably arranged removable from the soldering chamber.Type: GrantFiled: October 6, 1978Date of Patent: September 9, 1980Assignee: Ipsen Industries International, Gesellschaft mit beschrankter HaftungInventors: Ferdinand Limque, Hans Bertrand
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Patent number: 4205935Abstract: A continuous heating or pusher-type furnace for the heat treatment of small arts, by which in a closed furnace chamber glide tracks are provided for the intermittent feeding of basket cars in a row between a loading station and a discharge station which is connected gas-tight to the furnace chamber, in the vicinity of which stations there is arranged respectively a reversing device for the translation of the individual baskets from one glide track to the other glide track, whereby the filled baskets automatically can be inserted into the discharge station, and can be emptied by a tipping device with a connecting gravity chute into a quenching bath. The glide tracks with the loading station and the discharging station lie on one plane and at least two glide tracks are provided for the transportation of the filled baskets, the two glide tracks being symmetrically arranged relative to a glide track provided for the return transportation of the emptied baskets.Type: GrantFiled: April 18, 1978Date of Patent: June 3, 1980Assignee: Ipsen Industries International Gesellschaft mit beschrankter HaftungInventors: Karl-Heinz Edler, Karl H. Burmeister
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Patent number: 4116324Abstract: A loading device for the conveyance of containers with a driven endless chain, on which at least one driver is fastened. Parallel to the transporting chain stringer portion of the driven endless chain, a loading rod is axially displaceably disposed and is arranged releaseably connected with the endless chain, which is provided with at least two adjustable drivers arranged spaced from one another provided on the loading rod, which in their transport position provide the connection for the endless chain and for the transport container.Type: GrantFiled: October 27, 1976Date of Patent: September 26, 1978Assignee: Ipsen Industries International Gesellschaft mit beschrankter HaftungInventor: Karl-Heinz Burmeister
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Patent number: 3942659Abstract: A cradle hearth oven for the heat treatment of parts, inside which is arred an inclined rocking trough serving as a parts conveyor. The rocking trough is directly supported on the oven floor and the entire oven is tiltable to adjust the trough inclination.Type: GrantFiled: July 26, 1974Date of Patent: March 9, 1976Assignee: Ipsen Industries International Gesellschaft mit beschrankter HaftungInventor: Karl-Heinz Burmeister