Patents by Inventor Jürg Faas
Jürg Faas 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: 7234997Abstract: A grinding device for the flats of a card comprises elastically bendable elements which enter between the clothing points, brush over the side flanks of the points and thereby grind the points. Additional grinding elements are provided in order to treat the front sides of the clothing points. The ground-off material may be removed by a suction device.Type: GrantFiled: January 25, 2005Date of Patent: June 26, 2007Assignee: Maschinenfabrik Rieter, A.G.Inventors: Jürg Faas, Beat Näf, Christian Sauter, Yücel Yildirim, Roland Styner, Roland Bischof, Christian Müller
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Patent number: 7131896Abstract: A grinding device for the flats of a card comprises elastically bendable elements which enter between the clothing points, brush over the side flanks of the points and thereby grind the points. Additional grinding elements are provided in order to treat the front sides of the clothing points. The ground-off material may be removed by a suction device.Type: GrantFiled: January 25, 2005Date of Patent: November 7, 2006Assignee: Maschinenfabrik Rieter AGInventors: Jürg Faas, Beat Näf, Christian Sauter, Yücel Yildirim, Roland Styner, Roland Bischof, Christian Müller
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Patent number: 7037181Abstract: A grinding device for the flats of a card comprises elastically bendable elements which enter between the clothing points, brush over the side flanks of the points and thereby grind the points. Additional grinding elements are provided in order to treat the front sides of the clothing points. The ground-off material may be removed by a suction device.Type: GrantFiled: September 8, 1999Date of Patent: May 2, 2006Assignee: Maschinenfabrik Rieter AGInventors: Jürg Faas, Beat Näf, Christian Sauter, Yücel Yildirim, Roland Styner, Roland Bischof, Christian Müller
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Patent number: 6611994Abstract: The present invention relates to the application of fiber length measurement in the blowroom or carding room of a spinning mill. A method and an apparatus in a textile processing machine are described in which before and/or after a working element of the textile processing machine the nep count and/or the fiber length (staple) is determined, with an open-loop/closed-loop control unit being provided which receives the values for the fiber length and/or the nep count as input and determines therefrom the optimized machine setting data and outputs the same to at least one actuator of a working element which influences the nep count and/or the staple of the textile processing machine.Type: GrantFiled: June 22, 2001Date of Patent: September 2, 2003Assignee: Maschinenfabrik Rieter AGInventors: Jürg Bischofberger, Götz Theodor Gresser, Olivier Wüest, Christian Sauter, Jürg Faas, Peter Artzt, Volker Jehle, Hermann Maidel
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Patent number: 6581248Abstract: A card is equipped with a regulating drafting system at the card delivery arrangement. The measuring values for regulating the drafting system are obtained from the drafted fibre sliver. The sliver depositing device can be pre-controlled relative to the drafting system in order to keep the stresses in the fibre sliver between the drafting system and the sliver depositing device within limits. A fibre sliver storage device (11) is arranged upstream from the regulating drafting system (13) with relatively small capacity. In order to enable timely action if long term deviations are detected in the fibre sliver mass (m) delivered, a sensor (10) can be arranged between the card (1) and the regulating drafting system (13), and the base rotational speed (U14) of the drive (25, 26) of the regulating drafting system (13) can be adapted based on signals transmitted by the sensor (10).Type: GrantFiled: September 5, 2000Date of Patent: June 24, 2003Assignee: Maschinenfabrik Rieter AGInventors: Christian Müller, Jürg Faas
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Patent number: 6508698Abstract: A device for grinding clothing teeth and wire, or for cleaning cylinders, in a textile machine includes a grinding part having an elastic layer and grinding elements embedded throughout the elastic layer. The elastic layer is formed into a shape for being pressed against the clothing teeth, wire, or cylinder of the textile machine, and is formed of a material such that the elastic layer is worn by the clothing teeth, wire, or cylinder. In this way, the underlying embedded grinding elements are exposed.Type: GrantFiled: September 19, 2000Date of Patent: January 21, 2003Assignee: Maschinenfabrik Rieter AGInventor: Jürg Faas
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Patent number: 6421883Abstract: A flock transportation device with a switching device for the flock stream includes a monitoring apparatus which detects the degree of contamination of the fiber material. The monitoring apparatus includes an evaluation device which determines the cleaning requirements of the detected material and which controls the switching device accordingly. A flock processing installation is contemplated with several transportation paths which comprise different treatment characteristics. Additionally, the flock processing installation can be controlled by way of a central control systems.Type: GrantFiled: November 22, 2000Date of Patent: July 23, 2002Assignee: Maschinenfabrik Rieter AGInventors: Christoph Stäheli, Jürg Faas, Ulf Schneider
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Patent number: 6408221Abstract: To optimize the cleaning of cotton in a spinning milk, there is entered into a control original data concerning fiber characteristics and proportions of different types of contamination inherent to the origin of fiber cotton bales. Also there is entered into the control a desired degree of cleaning and a throughput quantity of the carded fiber sliver. The control delivers predetermined control signals based upon the entered original data, the throughput quantity of the carded sliver and the desired degree of cleaning. These control signals set adjustable operating members governing the rate of opening of the cotton bales by bale opening machines, the degree of cleaning of the cotton fibers by cleaning machines and the rate of processing of the cotton fibers by at least one carding machine.Type: GrantFiled: March 21, 1997Date of Patent: June 18, 2002Assignee: Maschinenfabrik Reiter AGInventors: Robert Demuth, Jürg Faas, Peter Fritzsche, Eduard Nüssli
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Patent number: 6393667Abstract: A machine (28, 201, K, 400) for processing textile material with at least one sliver-forming device (209, 41) and a coiler (42, KA) is provided with a drafting arrangement (2, 110, 213) in such a way that at least the coiler (42, KA) is formed by a subassembly of a draw frame (1, S) for doubling and drafting slivers (40, F, 52, 120), with the subassembly (1, S) also comprising the drafting arrangement (2, 213) of the draw frame.Type: GrantFiled: March 5, 2001Date of Patent: May 28, 2002Assignee: Maschinenfabrik Rieter AGInventors: Walter Slavik, Viktor Pietrini, Beat Näf, Jürg Faas, Christian Müller
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Patent number: 6286188Abstract: The present invention concerns a drafting system (30) with a drive (M2) provided with a regulating device (M3, 33) for levelling out mass variations in a fiber mass (6) supplied to the drafting system by a supply source (1). The mass variations are detected by at least one measuring sensor (70) coordinated to the drafting system and the corresponding signals are transmitted to a control unit (S). A further device (11, 12, 62, 63) may be coordinated to the drafting system (30) which is suitable for detecting differences between the delivery speed of the supply source (1) and the intake speed of the drafting system (30) and apply it for influencing the base rotational speed of the drafting system or to detect long term mass variations from a predetermined desired value in which arrangement these mass deviations detected are applied for influencing the base rotational speed of the drafting system.Type: GrantFiled: August 21, 2000Date of Patent: September 11, 2001Assignee: Maschinenfabrik Rieter AGInventors: Christian Müller, Jürg Faas, Beat Näf, Christian Grieshammer, Theodore Götz Gresser
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Patent number: 6219885Abstract: The main drum diameter (D) of a card for short staple carding is reduced. The working width preferentially is enlarged. The main drum (50) can be made from fiber reinforced synthetic material. Notwithstanding its smaller diameter, the new main drum is operated at the same or a somewhat higher circumferential speed (in comparison to a conventional card).Type: GrantFiled: November 12, 1999Date of Patent: April 24, 2001Assignee: Maschinenfabrik Rieter AGInventors: Jürg Faas, Beat Näf, Olivier Wüst, Christian Sauter, Theodor Gresser Götz
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Patent number: 6212737Abstract: A system is provided for processing textile fibers. A bale plucker removes fiber flocks from bales of fiber material and a flock transporting system delivers the flocks from the bale plucker to a carding machine or other processing apparatus. A feed chute is configured with the card machine and includes a first part for receiving flocks from the flock transporting system, and a second part for delivering a fiber lap to the card machine. A cleaning device is disposed within the feed chute between the first and second parts. The cleaning device comprises a fine cleaning nip feed arrangement. This nip feed arrangement in the feed chute is the only fine cleaning nip feed arrangement within the system between the bale plucker and the cleaning device.Type: GrantFiled: May 15, 1997Date of Patent: April 10, 2001Assignee: Maschinenfabrik Rieter AGInventor: Jürg Faas
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Patent number: 6185787Abstract: In a plant for processing textile fibers, the fine cleaning is effected at a point at which the stream of fiber material already has been subdivided (e.g. for the subsequent carding process), e.g. in the card filling chute. The cleaning device comprises at least one separating element arranged above the transporting roll. The trash eliminating system includes a system for eliminating material separated from the zone of the roll.Type: GrantFiled: July 30, 1998Date of Patent: February 13, 2001Assignee: Maschinenfabrik Rieter AGInventors: René Waeber, Christian Sauter, Jürg Faas, Peter Netzhammer