Patents by Inventor Glenn Ford Bittrolf
Glenn Ford Bittrolf 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: 10758910Abstract: A horizontal grinding machine includes a frame, a feed hopper that receives material to be processed, and a feed conveyor that moves material to be processed in a processing direction. A grinding cylinder rotates about a generally horizontal grinding axis. A feed roller assembly is mounted on the frame at the rear end of the feed hopper and in front of the grinding cylinder. The feed roller assembly includes a feed roller that rotates about a generally horizontal axis in a first direction that urges the material towards the grinding cylinder and a second direction that urges the material away from the grinding cylinder. A controller is operatively connected to the feed roller and to the feed conveyor and controls the rotational speed of the feed roller and the speed of the feed conveyor to obtain a predetermined ratio of feed roller rotational speed to feed conveyor speed.Type: GrantFiled: December 8, 2016Date of Patent: September 1, 2020Assignee: Astec Industries, Inc.Inventors: David Lynn Harrison, Lawrence Robert Cumming, Glenn Ford Bittrolf
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Patent number: 10099224Abstract: A material reducing machine includes a rotor assembly having a plurality of short cutting tools and a plurality of long cutting tools. The short cutting tools are arranged in rows which extend across the length of the rotor assembly, which rows are spaced around the periphery of the rotor assembly. Each of the short cutting tools has a cutting bit with a leading edge that is spaced outwardly from the periphery of the rotor assembly by a short cutter distance. The long cutting tools are also arranged in rows which extend across the length of the rotor assembly, which rows are spaced around the periphery of the rotor assembly. Each of the long cutting tools has a cutting bit with a leading edge that is spaced outwardly from the periphery of the rotor assembly by a long cutter distance that is greater than the short cutter distance of each of the short cutting tools. A breaker assembly includes a plurality of shear blocks, each of which is spaced so as to be aligned with a short cutting tool.Type: GrantFiled: March 17, 2014Date of Patent: October 16, 2018Assignee: Astec Industries, Inc.Inventors: Arnold Neil Peterson, Glenn Ford Bittrolf, Bradly Michael Deuerling
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Publication number: 20170165674Abstract: A horizontal grinding machine includes a frame, a feed hopper that is adapted to receive material to be processed and a feed conveyor that is associated with the feed hopper and adapted to move material to be processed in a processing direction. The grinding machine includes a grinding cylinder that is adapted to rotate about a generally horizontal grinding axis and a feed roller assembly that is mounted on the frame at the rear end of the feed hopper and in front of the grinding cylinder. The feed roller assembly includes a feed roller that is adapted to rotate about a generally horizontal axis in a first direction that urges the material towards the grinding cylinder and a second direction that urges the material away from the grinding cylinder.Type: ApplicationFiled: December 8, 2016Publication date: June 15, 2017Applicant: Astec Industries, Inc.Inventors: David Lynn Harrison, Lawrence Robert Cumming, Glenn Ford Bittrolf
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Publication number: 20140217214Abstract: A material reducing machine includes a rotor assembly having a plurality of short cutting tools and a plurality of long cutting tools. The short cutting tools are arranged in rows which extend across the length of the rotor assembly, which rows are spaced around the periphery of the rotor assembly. Each of the short cutting tools has a cutting bit with a leading edge that is spaced outwardly from the periphery of the rotor assembly by a short cutter distance. The long cutting tools are also arranged in rows which extend across the length of the rotor assembly, which rows are spaced around the periphery of the rotor assembly. Each of the long cutting tools has a cutting bit with a leading edge that is spaced outwardly from the periphery of the rotor assembly by a long cutter distance that is greater than the short cutter distance of each of the short cutting tools. A breaker assembly includes a plurality of shear blocks, each of which is spaced so as to be aligned with a short cutting tool.Type: ApplicationFiled: March 17, 2014Publication date: August 7, 2014Applicant: Astec Industries, Inc.Inventors: Arnold Neil Peterson, Glenn Ford Bittrolf, Bradly Michael Deuerling
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Publication number: 20140175201Abstract: A material reducing machine includes a frame and a drum rotor which is mounted for rotation with respect to the frame. The drum rotor includes a generally cylindrical peripheral wall with a tool mounted thereon. The tool has a leading edge that defines an arc as the drum rotor is rotated, which arc is spaced outwardly from the peripheral wall and is parallel thereto. The machine includes a material input device for conveying material to be reduced towards the drum rotor, and an outlet for reduced material. A breaker bar assembly is located adjacent to the drum rotor. The breaker bar assembly includes a back plate with a plurality of breaker bars mounted thereon. The breaker bar assembly is located so that material which is carried by the tool of the drum rotor is directed against the breaker bar assembly.Type: ApplicationFiled: December 21, 2012Publication date: June 26, 2014Applicant: ASTEC INDUSTRIES, INC.Inventors: Arnold Neil Peterson, Glenn Ford Bittrolf
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Patent number: 7832670Abstract: Described herein is a material reducing apparatus including a bypass arm and a bypass control member for allowing reduction-resistant objects of a material to bypass the apparatus while avoiding interruption of the operation of the apparatus. Other embodiments may be described and claimed.Type: GrantFiled: April 26, 2007Date of Patent: November 16, 2010Assignee: Astec Industries, Inc.Inventors: Arnold N. Peterson, Glenn Ford Bittrolf
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Patent number: 7232084Abstract: A material reduction apparatus for reducing materials having an admixture that resists reduction. The mechanism incorporated into the apparatus to provide a bypass of such admixture while avoiding shut down interruption of the materials reduction operation.Type: GrantFiled: June 27, 2006Date of Patent: June 19, 2007Assignee: Peterson Pacific CorporationInventors: Arnold Neil Peterson, Glenn Ford Bittrolf, Lynn Roger Humphreys
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Patent number: 7090157Abstract: A material reduction apparatus for reducing materials having an admixture that resists reduction. The mechanism incorporated into the apparatus to provide a bypass of such admixture while avoiding shut down interruption of the materials reduction operation.Type: GrantFiled: March 19, 2004Date of Patent: August 15, 2006Assignee: Peterson Pacific Corp.Inventors: Arnold Neil Peterson, Glenn Ford Bittrolf, Lynn Roger Humphreys