Patents by Inventor Merlan Rolffs
Merlan Rolffs 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: 11558991Abstract: An agricultural planter includes systems, methods, and apparatuses for maintaining down force pressure at row units of the planter. The row units may include an electric linear actuator connected to linkages of the row units to maintain a down force pressure for the row unit. The linkage may also be removed and replaced with a strut or like mechanism to apply a direct down force pressure to components of the row unit. One or more sensors can be included to obtain information related to the ground to automatically adjust the amount of down force provided based upon a ground characteristic in order to maintain a substantially uniform furrow depth.Type: GrantFiled: November 15, 2019Date of Patent: January 24, 2023Assignee: Kinze Manufacturing, Inc.Inventors: Courtney N. Achen, Marvin Bachman, Rhett Schildroth, Merlan Rolffs, Michael J. Myers, John Kollman, John P. Mulherin
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Publication number: 20200077563Abstract: An agricultural planter includes systems, methods, and apparatuses for maintaining down force pressure at row units of the planter. The row units may include an electric linear actuator connected to linkages of the row units to maintain a down force pressure for the row unit. The linkage may also be removed and replaced with a strut or like mechanism to apply a direct down force pressure to components of the row unit. One or more sensors can be included to obtain information related to the ground to automatically adjust the amount of down force provided based upon a ground characteristic in order to maintain a substantially uniform furrow depth.Type: ApplicationFiled: November 15, 2019Publication date: March 12, 2020Inventors: COURTNEY N. ACHEN, MARVIN BACHMAN, RHETT SCHILDROTH, MERLAN ROLFFS, MICHAEL J. MYERS, JOHN KOLLMAN, JOHN P. MULHERIN
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Patent number: 10477753Abstract: An agricultural planter includes systems, methods, and apparatuses for maintaining down force pressure at row units of the planter. The row units may include an electric linear actuator connected to linkages of the row units to maintain a down force pressure for the row unit. The linkage may also be removed and replaced with a strut or like mechanism to apply a direct down force pressure to components of the row unit. One or more sensors can be included to obtain information related to the ground to automatically adjust the amount of down force provided based upon a ground characteristic in order to maintain a substantially uniform furrow depth.Type: GrantFiled: October 13, 2017Date of Patent: November 19, 2019Assignee: Kinze Manufacturing, Inc.Inventors: Courtney N. Achen, Marvin Bachman, Rhett Schildroth, Merlan Rolffs, Michael J. Myers, John Kollman, John P. Mulherin
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Patent number: 10064323Abstract: An agricultural implement includes the use of one or more electromechanical hydraulic cylinder assembly in place of hydraulic cylinders. The assemblies may take various forms for actuation, and can convert an electric power source to hydraulic power for use on or with the implement. A control system is also provided for connecting to a tractor to provide control information to the assemblies or to a central hydraulic supply via a ISOBUS that rebroadcasts input controls from a source, such as a tractor used in conjunction with the agricultural implement.Type: GrantFiled: January 23, 2015Date of Patent: September 4, 2018Assignee: Kinze Manufacturing, Inc.Inventors: Dustan Hahn, Merlan Rolffs, John P. Mulherin, Courtney N. Achen, Gary Volz, Steve Nolte, Ryan Legge, Rhett Schildroth
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Publication number: 20180035597Abstract: An agricultural planter includes systems, methods, and apparatus for providing down force pressure at row units of the planter. The row units may include an electric linear actuator connected to linkages of the row units to provide and maintain a down force pressure for the row unit. The linkage may also be removed and replaced with a strut or like mechanism to apply a direct down force pressure to components of the row unit. One or more sensors can be included to obtain information related to the ground to automatically adjust the amount of down force provided based upon a ground characteristic in order to maintain a substantially uniform furrow depth.Type: ApplicationFiled: October 13, 2017Publication date: February 8, 2018Inventors: COURTNEY N. ACHEN, MARVIN BACHMAN, RHETT SCHILDROTH, MERLAN ROLFFS, MICHAEL J. MYERS, JOHN KOLLMAN, JOHN P. MULHERIN
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Patent number: 9814172Abstract: An agricultural planter includes systems, methods, and apparatus for providing down force pressure at row units of the planter. The row units may include an electric linear actuator connected to linkages of the row units to provide and maintain a down force pressure for the row unit. The linkage may also be removed and replaced with a strut or like mechanism to apply a direct down force pressure to components of the row unit. One or more sensors can be included to obtain information related to the ground to automatically adjust the amount of down force provided based upon a ground characteristic in order to maintain a substantially uniform furrow depth.Type: GrantFiled: March 23, 2015Date of Patent: November 14, 2017Assignee: Kinze Manufacturing, Inc.Inventors: Courtney N. Achen, Marvin Bachman, Rhett Schildroth, Merlan Rolffs, Michael J. Myers, John Kollman, John P. Mulherin
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Patent number: 9474201Abstract: An agricultural planter includes a plurality of row units attached to a toolbar. The row units include seed meters for receiving, singulating, and dispensing seed or other particulate. The seed meters include a circular seed disc with a seed path for receiving the seed in the seed meter housing. Integrated with the seed disc is a motor that is housed within the seed meter housing and that includes a rotatable portion being attached to the circular disc such that the two rotate in tandem. The integrated motor can be positioned within an interior portion of the circular seed disc such that the width of the disc and motor combination is kept to a minimum.Type: GrantFiled: January 9, 2015Date of Patent: October 25, 2016Assignee: Kinze Manufacturing, Inc.Inventors: Matthew J. Wilhelmi, Merlan Rolffs, Dustan Hahn, John P. Mulherin, Courtney N. Achen, Michael J. Myers, Ryan Legge, Rhett Schildroth, Marvin Bachman, Todd E. Kniffen
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Publication number: 20150264857Abstract: An agricultural planter includes systems, methods, and apparatus for providing down force pressure at row units of the planter. The row units may include an electric linear actuator connected to linkages of the row units to provide and maintain a down force pressure for the row unit. The linkage may also be removed and replaced with a strut or like mechanism to apply a direct down force pressure to components of the row unit. One or more sensors can be included to obtain information related to the ground to automatically adjust the amount of down force provided based upon a ground characteristic in order to maintain a substantially uniform furrow depth.Type: ApplicationFiled: March 23, 2015Publication date: September 24, 2015Inventors: Courtney N. Achen, Marvin Bachman, Rhett Schildroth, Merlan Rolffs, Michael J. Myers, John Kollman, John P. Mulherin
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Publication number: 20150208571Abstract: An agricultural implement includes the use of one or more electromechanical hydraulic cylinder assembly in place of hydraulic cylinders. The assemblies may take various forms for actuation, and can convert an electric power source to hydraulic power for use on or with the implement. A control system is also provided for connecting to a tractor to provide control information to the assemblies or to a central hydraulic supply via a ISOBUS that rebroadcasts input controls from a source, such as a tractor used in conjunction with the agricultural implement.Type: ApplicationFiled: January 23, 2015Publication date: July 30, 2015Inventors: Dustan Hahn, Merlan Rolffs, John P. Mulherin, Courtney N. Achen, Gary Volz, Steve Nolte, Ryan Legge, Rhett Schildroth
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Publication number: 20150189826Abstract: An agricultural planter includes a plurality of row units attached to a toolbar. The row units include seed meters for receiving, singulating, and dispensing seed or other particulate. The seed meters include a circular seed disc with a seed path for receiving the seed in the seed meter housing. Integrated with the seed disc is a motor that is housed within the seed meter housing and that includes a rotatable portion being attached to the circular disc such that the two rotate in tandem. The integrated motor can be positioned within an interior portion of the circular seed disc such that the width of the disc and motor combination is kept to a minimum.Type: ApplicationFiled: January 9, 2015Publication date: July 9, 2015Inventors: Matthew J. Wilhelmi, Merlan Rolffs, Dustan Hahn, John P. Mulherin, Courtney N. Achen, Michael J. Myers, Ryan Legge, Rhett Schildroth, Marvin Bachman, Todd E. Kniffen
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Patent number: 5791104Abstract: A window unit (20) including a jamb extension assembly (28) is provided for use with fenestration products. The jamb extension assembly (28) includes a frame member (30) having structure to permit installation of the window unit (20) in a building wall rough opening. The frame member (30) presents inner, outer, rearward and forward portions (62, 64, 66, 68), and includes a jamb extender receiving slot (70) extending and opening rearwardly from the rearward portion (66) of the frame member (30). An elongated jamb extender (32) is provided and includes a transverse, extender flange (88) extending forwardly from an extender corner, and a trim flange (92) extending outwardly from the corner. The extender flange (88) is configured to slide in the slot (70). The extender flange (88) includes structure defining a plurality of longitudinally disposed lines of weakness being in the form of scores (94) disposed on an outer flange surface (96) to permit the length adjustment of the extender flange (88).Type: GrantFiled: December 1, 1995Date of Patent: August 11, 1998Assignee: Pella CorporationInventors: Bruce Baier, Dave Cody, Gene De Boef, Mearl J. Minter, Merlan Rolffs
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Patent number: 5211393Abstract: A backboard arm is pivotally mounted to a mast member rearwardly offset from the ground supported mast member in which a jack is internally positioned for extending upwardly out of the upper end for engagement with the backboard arm extending over and outwardly thereof. The jack operates in compression and is substantially concealed from sight.Type: GrantFiled: October 16, 1991Date of Patent: May 18, 1993Assignee: Goalsetter Systems, Inc.Inventors: Merlan Rolffs, Dennis H. Steenhoek, Dennis E. Brand