Patents by Inventor Hartmut Halter
Hartmut Halter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6954983Abstract: A method for continuously producing flat cables with electric conductors embedded in an isolating material which are arranged at a certain distance from each other, parallel to each other. According to this invention, the band shaped conductors are guided separately in a plane forming two sides of a surface. The surface sides have insulating layers based on thermoplastic synthetic materials. According to this invention, at least one of the insulating layers which covers the surface sides is produced by extrusion coating of a thermoplastic melt.Type: GrantFiled: November 14, 2001Date of Patent: October 18, 2005Assignee: Reifenhäuser GmbH & Co MaschinenfabrikInventors: Karl Fröschl, Frank Bennerscheidt, Hartmut Halter
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Publication number: 20040029451Abstract: A method for continuously producing flat cables with electric conductors embedded in an isolating material which are arranged at a certain distance from each other, parallel to each other. According to this invention, the band shaped conductors are guided separately in a plane forming two sides of a surface. The surface sides have insulating layers based on thermoplastic synthetic materials. According to this invention, at least one of the insulating layers which covers the surface sides is produced by extrusion coating of a thermoplastic melt.Type: ApplicationFiled: May 19, 2003Publication date: February 12, 2004Inventors: Karl Froschl, Frank Bennerscheidt, Hartmut Halter
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Patent number: 5162089Abstract: A method of making a coil of a plastic foil forms a flat web by extrusion through a wide slit nozzle or by film blowing and determines the thickness-error profile of the foil wound on a coil. Based upon monitoring the contour of the coil the inverse thickness-error profile is produced by control of the die gap and wound on the coil so that the coil is built-up alternatingly with the original thickness-error profile and the inverse thickness-error profile until completion of winding so that it has a sufficiently cylindrical coil contour.Type: GrantFiled: April 17, 1991Date of Patent: November 10, 1992Assignee: Reifenhauser GmbH & Co.Inventor: Hartmut Halter
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Patent number: 5110518Abstract: A foil-blowing apparatus has at least one deformable lip defining the annular orifice from which the thermoplastic tube which is blown to form the coil is extruded. The lip can be provided with an array of effectors which, in response to a thickness-profile measuring unit, can radially deform the lip to correct thickness errors. The lip can be under prestress and the radial deformation is effected by measuring the thickness and superimposing a radial force on the prestress.Type: GrantFiled: October 16, 1990Date of Patent: May 5, 1992Assignee: Reifenhauser GmbH & Co. MaschinenfabrikInventor: Hartmut Halter
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Patent number: 5094790Abstract: Platelike webs of thermoplastic material are produced by extruding a strip of the thermoplastic material and passing it through a roll unit having a pair of intake rolls upstream of which a bank of the material is formed. The delivery speed is controlled in response to the bearing pressure of the intake rolls.Type: GrantFiled: October 26, 1990Date of Patent: March 10, 1992Assignee: Reifenhauser GmbH & Co. MaschinenfabrikInventor: Hartmut Halter
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Patent number: 4955802Abstract: An apparatus for blow extruding a synthetic-resin tube has a nozzle having an annular mouth generally centered on a longitudinal axis for longitudinally outwardly extruding a tubular synthetic-resin strand, an inner stabilizing tube extending longitudinally outward from the nozzle within the mouth thereof and having an outer end spaced a predetermined longitudinal distance from the mouth, and an outer stabilizing tube surrounding the inner tube and defining a longitudinal passage therewith, extending longitudinally outward from the nozzle within the mouth thereof, and having an outer end lying between the outer end of the inner tube and the mouth. The passage opens outward between the outer ends. Cool air is fed to the passage at the mouth and to a space defined between the strand where it emerges from the mouth and the outer tube for flow of this cooling air longitudinally outward between the strand and the outer tube and from the outer end of the outer tube.Type: GrantFiled: June 8, 1989Date of Patent: September 11, 1990Assignee: Reifenhauser GmbH & Co. MaschinenfabrikInventors: Hartmut Halter, Willi Schnell
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Patent number: 4798351Abstract: The apparatus for winding a foil sheet, especially a plastic foil sheet, on a roll core is used in a step in the winding of a foil sheet into a foil sheet roll with a foil sheet winding machine. The apparatus comprises a contacting roll, a roll core receptacle and a cross cutter. A roll core put in the roll core receptacle is placed on the contacting roll and is drivable by it with the intervening foil sheet running to the downstream foil sheet roll. The foil sheet is cuttable with the help of the cross cutter between the roll core and the downstream foil sheet roll. Further the leading end piece of the next following foil sheet formed by cutting is receivable by the roll core. Above the roll core received in the roll core receptacle a foil sheet press device is mounted which is placeable on the roll core by a pivot motion and has a press element travelling with it during pivoting.Type: GrantFiled: September 8, 1987Date of Patent: January 17, 1989Assignee: Reifenhauser GmbH & Co. MaschinenfabrikInventors: Hartmut Halter, Paul H. Zimmermann, Norbert Achterwinter
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Patent number: 4784590Abstract: The apparatus for making a plastic foil by blowing into an extruded thermoplastic tube comprises a rotating extruder head with at least one circular outlet gap for the plastic tube, an air blowing device and a cooling device including two circular cooling air outlets surrounding the circular outlet gap of the extruder head. Cooling air duct structures are connected to a common cooling air blower. A cooling air distributor unit has a cooling air feed device for each cooling air outlet. The cooling air feed devices are aerodynamically independent of each other. The aerodynamically independent cooling air feed devices are connected to a common cooling air duct structure. Each cooling air feed device has an air flow control device.Type: GrantFiled: July 13, 1987Date of Patent: November 15, 1988Assignee: Reifenhauser GmbH & Co. MaschinenfabrikInventor: Hartmut Halter
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Patent number: 4784595Abstract: The apparatus for extrusion of a thermoplastic material comprises an extruder with an extruder screw and an extruder housing with a feed opening, a feed device, a drive with a variable speed motor and a regulating device cascade for the mass temperature. The regulating device cascade has a plurality of tempering zones, at least one mass temperature detector and at least one tempering device. One tempering zone connected directly to the feed opening is part of the regulating device cascade and the temperature in the one tempering zone is corrected by a set value during a mass temperature variation. To provide a temperature regulation range which does not experience disturbing decreases, the tempering zone at the feed opening has only a cooling device and has a grooved sleeve. The feed device is a gravity feed device and belongs to an additional regulating loop which controls the rotational speed of a variable speed motor.Type: GrantFiled: September 1, 1987Date of Patent: November 15, 1988Assignee: Reifenhauser GmbH & Co. MaschinenfabrikInventor: Hartmut Halter
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Patent number: 4711747Abstract: A method of producing a thermoplastic foil with reduced thickness tolerances in which close to the head the temperatures of the mass flow emerging from the heat at various regions corresponding to tempering sectors are detected, the temperature measurements are averaged and the averages are used to form a set point value with which the individual averages are compared and the comparison used to generate a correction signal which is applied to the temperature controller of the respective sector.Type: GrantFiled: May 20, 1986Date of Patent: December 8, 1987Assignee: Reifenhauser GmbH & Co.Inventor: Hartmut Halter
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Patent number: 4552317Abstract: The weight components along a pair of support arms for a coil of a foil web provide inputs to a controller whose other input is from an angle detector measuring the inclination of said arms so that the controller can operate a control member such as a fluid cylinder to maintain a constant contact pressure between the coil and a contact drum applying the web to the coil.Type: GrantFiled: October 1, 1984Date of Patent: November 12, 1985Assignee: Reifenhauser GmbH & Co. MaschinenfabrikInventor: Hartmut Halter
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Patent number: 4464319Abstract: A method of and apparatus for the formation of synthetic resin foil coils. The angular velocity of the flaw propagating member is reduced as the coil increases for at least a multiplicity of turns to impart to the coil the configuration of a right circular cylinder with a high degree of precision.Type: GrantFiled: August 5, 1982Date of Patent: August 7, 1984Assignee: Reifenhauser GmbH & Co. MaschinenfabrikInventors: Hartmut Halter, Willi Schnell
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Patent number: 4189288Abstract: A coupling circuit for the feedback loops of foil-thickness control circuit, a calibrator height-adjusting control circuit, a calibrator diameter-setting control circuit and a balloon-filling control circuit interlocks the control circuits and shifts the responses thereof upon start-up of a film or foil blowing apparatus. The latter also includes the usual blowing heads, connected to a worm extruder, the calibrating basket, the balloon-flattening device, the drawing rollers and the winding device which rolls up the flattened web of blown film.Type: GrantFiled: May 12, 1978Date of Patent: February 19, 1980Assignee: Reifenhauser KGInventor: Hartmut Halter