Patents by Inventor Thomas Mickelat
Thomas Mickelat 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: 11453977Abstract: A set for mechanical processing suspended fibrous material includes a die plate having receiving openings in a predefined arrangement for insertion of blade-shaped processing elements which jut out on a process side and are flowed onto by the fibrous material. The blade-shaped processing elements have each a plurality of foot regions in longitudinally spaced-apart relation, which pass through the die plate and jut out from the die plate on a process-distal. At least some of the foot regions of the processing elements reach into associated receiving grooves of a base plate on the process-distal side. As an alternative, transverse stiffening elements are arranged substantially orthogonally in the longitudinal direction of the processing elements such that the transverse stiffening elements stabilize the foot regions of the processing elements on the process-distal side.Type: GrantFiled: March 30, 2018Date of Patent: September 27, 2022Assignee: ANDRITZ FIEDLER GMBHInventors: Christoph Tichy, Wolfgang Beer, Thomas Mickelat, Peter Antensteiner
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Patent number: 10589196Abstract: A bar-type screen cage has profiled screen bars which are spaced apart in a circumferential direction. Multiple support arrangements which are spaced apart in an axial direction of the screen cage are fastened by welding to the profile bars at the outside. The screen bars, which are spaced apart in an axial direction, form screen slots between them. Each support arrangement includes at least two support wires which are closely spaced apart in the axial direction of the screen bars and which are fixed to the screen bars by resistance welding. The two support wires of each support arrangement and the profile bars-are fixedly connected to one another by way of an additional weld seam.Type: GrantFiled: February 25, 2016Date of Patent: March 17, 2020Assignee: ANDRITZ FIEDLER GMBHInventors: Thomas Mickelat, Michael Reinstein
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Patent number: 10279285Abstract: A profiled strainer bar has a base region and a head region. A straining slot or a straining gap is produced between flanks of the straining slot at the head region. Each flank at the head region has a radius with a common center on the upstream and downstream side. A strainer, preferably in the shape of a strainer basket, has straining slots or straining gaps formed between profiled strainer bars. The strainer bars have a geometry at the strainer bar base region with the geometry being adapted to receiving recesses of support elements and being received in the receiving recesses. The strainer bars are permanently secured to the receiving recesses. The strainer bars are profiled such that each flank on the head region of the strainer bar has a radius with a common center on the upstream and downstream side.Type: GrantFiled: August 14, 2014Date of Patent: May 7, 2019Assignee: ANDRITZ FIEDLER GMBHInventors: Thomas Mickelat, Michael Reinstein
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Publication number: 20180230650Abstract: A set for mechanical processing suspended fibrous material includes a die plate having receiving openings in a predefined arrangement for insertion of blade-shaped processing elements which jut out on a process side and are flowed onto by the fibrous material. The blade-shaped processing elements have each a plurality of foot regions in longitudinally spaced-apart relation, which pass through the die plate and jut out from the die plate on a process-distal. At least some of the foot regions of the processing elements reach into associated receiving grooves of a base plate on the process-distal side. As an alternative, transverse stiffening elements are arranged substantially orthogonally in the longitudinal direction of the processing elements such that the transverse stiffening elements stabilize the foot regions of the processing elements on the process-distal side.Type: ApplicationFiled: March 30, 2018Publication date: August 16, 2018Applicant: Andritz Fiedler GmbHInventors: Christoph Tichy, WOLFGANG BEER, THOMAS MICKELAT, PETER ANTENSTEINER
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Patent number: 9976253Abstract: A set for mechanical processing suspended fibrous material includes a die plate having receiving openings in a predefined arrangement for insertion of blade-shaped processing elements which jut out on a process side and are flowed onto by the fibrous material. The blade-shaped processing elements have each a plurality of foot regions in longitudinally spaced-apart relation, which pass through the die plate (2) and jut out from the die plate on a process-distal. At least some of the foot regions of the processing elements reach into associated receiving grooves of a base plate on the process-distal side. As an alternative, transverse stiffening elements are arranged substantially orthogonally in the longitudinal direction of the processing elements such that the transverse stiffening elements stabilize the foot regions of the processing elements on the process-distal side.Type: GrantFiled: June 24, 2015Date of Patent: May 22, 2018Assignee: Andritz Fiedler GmbHInventors: Christoph Tichy, Wolfgang Beer, Thomas Mickelat, Peter Antensteiner
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Publication number: 20180043289Abstract: A bar-type screen cage has profiled screen bars which are spaced apart in a circumferential direction. Multiple support arrangements which are spaced apart in an axial direction of the screen cage are fastened by welding to the profile bars at the outside. The screen bars, which are spaced apart in an axial direction, form screen slots between them. Each support arrangement includes at least two support wires which are closely spaced apart in the axial direction of the screen bars and which are fixed to the screen bars by resistance welding. The two support wires of each support arrangement and the profile bars-are fixedly connected to one another by way of an additional weld seam.Type: ApplicationFiled: February 25, 2016Publication date: February 15, 2018Applicant: ANDRITZ FIEDLER GMBHInventors: THOMAS MICKELAT, MICHAEL REINSTEIN
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Publication number: 20170191218Abstract: A set for mechanical processing suspended fibrous material includes a die plate having receiving openings in a predefined arrangement for insertion of blade-shaped processing elements which jut out on a process side and are flowed onto by the fibrous material. The blade-shaped processing elements have each a plurality of foot regions in longitudinally spaced-apart relation, which pass through the die plate (2) and jut out from the die plate on a process-distal. At least some of the foot regions of the processing elements reach into associated receiving grooves of a base plate on the process-distal side. As an alternative, transverse stiffening elements are arranged substantially orthogonally in the longitudinal direction of the processing elements such that the transverse stiffening elements stabilize the foot regions of the processing elements on the process-distal side.Type: ApplicationFiled: June 24, 2015Publication date: July 6, 2017Applicant: ANDRITZ FIEDLER GMBHInventors: CHRISTOPH TICHY, WOLFGANG BEER, THOMAS MICKELAT, PETER ANTENSTEINER
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Patent number: 9593449Abstract: A screening device for fibrous stock suspensions of the paper industry includes at least two separate screening baskets which are connected axially behind one another in the interior of a reinforcing device in the form of a back-up cylinder. A variable-diameter intermediate ring is arranged between the screening baskets. The reinforcing device has a cover part and a bottom part. By way of axial tensile force loading of the arrangement, the intermediate ring is loaded so as to bear radially in the circumferential direction in a gap-free manner against the associated axial ends or screening basket flanges of the screening baskets. The screening baskets are then clamped and fixed in a centrally positioned manner by the intermediate ring in cooperation with the end-side flange of the reinforcing device, the cover part, the bottom part and the intermediate ring.Type: GrantFiled: June 16, 2014Date of Patent: March 14, 2017Assignee: ANDRITZ FIEDLER GMBHInventors: Thomas Mickelat, Michael Reinstein
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Publication number: 20160153139Abstract: A screening device for fibrous stock suspensions of the paper industry includes at least two separate screening baskets which are connected axially behind one another in the interior of a reinforcing device in the form of a back-up cylinder. A variable-diameter intermediate ring is arranged between the screening baskets. The reinforcing device has a cover part and a bottom part. By way of axial tensile force loading of the arrangement, the intermediate ring is loaded so as to bear radially in the circumferential direction in a gap-free manner against the associated axial ends or screening basket flanges of the screening baskets. The screening baskets are then clamped and fixed in a centrally positioned manner by the intermediate ring in cooperation with the end-side flange of the reinforcing device, the cover part, the bottom part and the intermediate ring.Type: ApplicationFiled: June 16, 2014Publication date: June 2, 2016Applicant: Andritz Fiedler GmbHInventors: Thomas MICKELAT, Michael REINSTEIN
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Publication number: 20160144299Abstract: A profiled strainer bar has a base region and a head region. A straining slot or a straining gap is produced between flanks of the straining slot at the head region. Each flank at the head region has a radius with a common center on the upstream and downstream side. A strainer, preferably in the shape of a strainer basket, has straining slots or straining gaps formed between profiled strainer bars. The strainer bars have a geometry at the strainer bar base region with the geometry being adapted to receiving recesses of support elements and being received in the receiving recesses. The strainer bars are permanently secured to the receiving recesses. The strainer bars are profiled such that each flank on the head region of the strainer bar has a radius with a common center on the upstream and downstream side.Type: ApplicationFiled: August 14, 2014Publication date: May 26, 2016Applicant: Andritz Fiedler GmbHInventors: THOMAS MICKELAT, MICHAEL REINSTEIN
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Patent number: 8292086Abstract: The invention relates to a strainer apparatus, such as a strainer basket, a strainer cylinder and the like, wherein slits or gaps are formed between strainer bars (6). The base of the strainer bars is received in receiving recesses (8) adapted to the dimensions of the base of the bars, in a support element (3). The support element can also be a reinforcing or strengthening element, and the strainer bars (6) are permanently fixed to the respective support element (3). At least one pocket (10, 11) that can be filled with a filler material is provided between each support element (3) and each associated strainer bar (6), at least on the edge region (7) of the respective receiving recess (8).Type: GrantFiled: April 1, 2008Date of Patent: October 23, 2012Assignee: Andritz Fiedler GmbHInventors: Thomas Mickelat, Christoph Tichy
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Publication number: 20100072113Abstract: The invention relates to a strainer apparatus, such as a strainer basket, a strainer cylinder and the like, wherein slits or gaps are formed between strainer bars (6). The base of the strainer bars is received in receiving recesses (8) adapted to the dimensions of the base of the bars, in a support element (3). The support element can also be a reinforcing or strengthening element, and the strainer bars (6) are permanently fixed to the respective support element (3). At least one pocket (10, 11) that can be filled with a filler material is provided between each support element (3) and each associated strainer bar (6), at least on the edge region (7) of the respective receiving recess (8).Type: ApplicationFiled: April 1, 2008Publication date: March 25, 2010Applicant: Andritz Fiedler GmbhInventors: Thomas Mickelat, Christoph Tichy
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Publication number: 20050224199Abstract: The invention relates to a bar screen device (1, 1?, 1?), especially for treating fibrous suspensions in the paper industry. Said device comprises a plurality of bars (2, 2?, 2?, 2?) which are fixed to at least one reinforcing element (3, 3?, 3?, 3?) in such a way that they extend parallel at a pre-determined mutual distance which is defined by spacer elements (4*, 4*?, 4*?, 4*?), the mutual distance between the same defining the width of the slits in the bar screen device. The spacer elements (4*, 4*?, 4*?, 4*?) are also embodied as connecting elements (4, 4?, 4?, 4?), especially in order to avoid notch-induced resistance variations, and fix the bars (2, 2?, 2?, 2?) to the reinforcing elements (3, 3?, 3?, 3?) in such a way that they are distanced, in all three dimensions, in a positively and force locking manner, from the base of the bars to as close as possible to the neutral fibres of the bars (2, 2?; 2?, 2?) impinged upon.Type: ApplicationFiled: April 23, 2003Publication date: October 13, 2005Inventor: Thomas Mickelat
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Publication number: 20030226801Abstract: A slotted screen assembly, in particular for treatment of fiber suspensions in the paper industry, includes at least one reinforcement element, and a plurality of rods extending in predetermined spaced-apart parallel relationship and fixed to the at least one reinforcement element. A spacer element is provided for adjusting a distance between neighboring rods upon the reinforcement element to thereby define a gap width of the slotted screen assembly, thereby maintaining a relative position between the rods at a distance which is variable. The rods and/or the spacer element form a form-fitting connection with the reinforcement, element.Type: ApplicationFiled: April 23, 2003Publication date: December 11, 2003Applicant: HEINRICH FIEDLER GMBH & CO. KGInventors: Hubert Gassmann, Thomas Mickelat
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Patent number: 6579458Abstract: A screening device includes a screening element connected to a reinforcing element by a frictionally engaging clamping connection. Spacers located between the screening element and the reinforcing element provide a radial clearance therebetween. The screening element can be replaced when worn out, while the reinforcing element and associated parts can be reused with a new screening device. For this purpose, the screening element can be detached from the reinforcing element, which provides the actual support function, as a single unit by way of the frictionally engaging clamping connection. The clamping connection can be implemented by way of wedges or a conical seat.Type: GrantFiled: March 14, 2001Date of Patent: June 17, 2003Assignee: Heinrich Fiedler GmbH & Co. KGInventors: Thomas Mickelat, Maximilian Baier, Hubert Gassmann
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Publication number: 20010032816Abstract: A screening device includes a screening element connected to a reinforcing element by a frictionally engaging clamping connection. Spacers located between the screening element and the reinforcing element provide a radial clearance therebetween. The screening element can be replaced when worn out, while the reinforcing element and associated parts can be reused with a new screening device. For this purpose, the screening element can be detached from the reinforcing element, which provides the actual support function, as a single unit by way of the frictionally engaging clamping connection. The clamping connection can be implemented by way of wedges or a conical seat.Type: ApplicationFiled: March 14, 2001Publication date: October 25, 2001Inventors: Thomas Mickelat, Maximilian Baier, Hubert Gassmann