Patents by Inventor Roger Lee Larson
Roger Lee Larson 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: 12402548Abstract: A turf aerator has a chassis and a motor mounted on the chassis between a front end and a rear end of the chassis and between a first side and a second side of the chassis. A first shaft is rotatably driven by the motor, a first inner tine assembly mounted to a first portion of the first shaft, a second inner tine assembly mounted on the first shaft, and a first outer tine assembly mounted to a second portion of the first shaft. A tine cover is removably secured to the chassis over at least one of the first inner tine assembly and the first outer tine assembly.Type: GrantFiled: December 4, 2023Date of Patent: September 2, 2025Assignee: Turfco Mfg., Inc.Inventors: George Kinkead, Steven Ferguson, Terrence R. Bondeson, Tom Fiske, Roger Lee Larson
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Publication number: 20240099173Abstract: Tine assemblies (100a, 100b, 104) are secured by a single bolt (126) extending diametrically through each tine (120) located in a cavity (112) of a tine plate (110). An outer tine assembly (104) is connected to a sleeve (116) rotatably mounted on independently rotatable shafts (102) to which inner tine assemblies (100a, 100b) are connected. A tine cover (50) removably closes an opening (40) in the top plate (28) and in which weights (70) are removably received over the tine assemblies (100a, 100b, 104). Transport wheels (134) are moveable by pivoting a stop plate (140) to position an upper pivot axis (150a) of an abutment bar (150) ahead of or behind the stop axis (142) and lower pivot axis (150b). A stop (146) positioned on the stop plate (140) without the use of tools adjusts the depth of the tine assemblies (100a, 100b, 104).Type: ApplicationFiled: December 4, 2023Publication date: March 28, 2024Inventors: George Kinkead, Steven Ferguson, Terrence R. Bondeson, Tom Fiske, Roger Lee Larson
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Patent number: 11832541Abstract: Tines (120) of tine assemblies (100a, 100b, 104) are secured by a single bolt (126) extending diametrically through each tine (120) located in a cavity (112) of a tine plate (110), through the tine plate (110) and through an attachment ring (130). The attachment ring (130) of an outer tine assembly (104) is connected to a sleeve (116) rotatably mounted adjacent the outer ends on each of two independently rotatable shafts (102) to which inner tine assemblies (100a, 100b) are rotatably connected adjacent the inner ends of the two independently rotatable shafts (102). The attachment rings (130) of the inner tine assemblies (100a, 100b) are welded to the two independently rotatable shafts (102).Type: GrantFiled: March 22, 2021Date of Patent: December 5, 2023Assignee: TURFCO MANUFACTURING, INC.Inventors: George Kinkead, Steven Ferguson, Terrence R. Bondeson, Tom Fiske, Roger Lee Larson
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Publication number: 20210204461Abstract: Tines (120) of tine assemblies (100a, 100b, 104) are secured by a single bolt (126) extending diametrically through each tine (120) located in a cavity (112) of a tine plate (110). An outer tine assembly (104) is connected to a sleeve (116) rotatably mounted adjacent the outer ends on each of two independently rotatable shafts (102) to which inner tine assemblies (100a, 100b) are rotatably connected adjacent the inner ends of the two independently rotatable shafts (102). Thus, the outer tine assemblies (104) are located intermediate the inner tine assemblies (100a, 100b) and the outer ends of the two independently rotatable shafts (102).Type: ApplicationFiled: March 22, 2021Publication date: July 8, 2021Inventors: George Kinkead, Steven Ferguson, Terrence R. Bondeson, Tom Fiske, Roger Lee Larson
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Patent number: 10952363Abstract: Tines (120) of tine assemblies (100a, 100b, 104) are secured by a single bolt (126) extending diametrically through each tine (120) located in a cavity (112) of a tine plate (110). An outer tine assembly (104) is connected to a sleeve (116) rotatably mounted adjacent the outer ends on each of two independently rotatable shafts (102) to which inner tine assemblies (100a, 100b) are rotatably connected adjacent the inner ends of the two independently rotatable shafts (102). Thus, the outer tine assemblies (104) are located intermediate the inner tine assemblies (100a, 100b) and the outer ends of the two independently rotatable shafts (102).Type: GrantFiled: February 25, 2019Date of Patent: March 23, 2021Assignee: Turfco Manufacturing, Inc.Inventors: George Kinkead, Steven Ferguson, Terrence R Bondeson, Tom Fiske, Roger Lee Larson
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Publication number: 20190183028Abstract: Tine assemblies (100a, 100b, 104) are secured by a single bolt (126) extending diametrically through each tine (120) located in a cavity (112) of a tine plate (110). An outer tine assembly (104) is connected to a sleeve (116) rotatably mounted on independently rotatable shafts (102) to which inner tine assemblies (100a, 100b) are connected. A tine cover (50) removably closes an opening (40) in the top plate (28) and in which weights (70) are removably received over the tine assemblies (100a, 100b, 104). Transport wheels (134) are moveable by pivoting a stop plate (140) to position an upper pivot axis (150a) of an abutment bar (150) ahead of or behind the stop axis (142) and lower pivot axis (150b). A stop (146) positioned on the stop plate (140) without the use of tools adjusts the depth of the tine assemblies (100a, 100b, 104).Type: ApplicationFiled: February 25, 2019Publication date: June 20, 2019Inventors: George Kinkead, Steven Ferguson, Terrence R. Bondeson, Tom Fiske, Roger Lee Larson
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Patent number: 10212872Abstract: Tine assemblies (100a, 100b, 104) are secured by a single bolt (126) extending diametrically through each tine (120) located in a cavity (112) of a tine plate (110). An outer tine assembly (104) is connected to a sleeve (116) rotatably mounted on independently rotatable shafts (102) to which inner tine assemblies (100a, 100b) are connected. A tine cover (50) removably closes an opening (40) in the top plate (28) and in which weights (70) are removably received over the tine assemblies (100a, 100b, 104). Transport wheels (134) are moveable by pivoting a stop plate (140) to position an upper pivot axis (150a) of an abutment bar (150) ahead of or behind the stop axis (142) and lower pivot axis (150b). A stop (146) positioned on the stop plate (140) without the use of tools adjusts the depth of the tine assemblies (100a, 100b, 104).Type: GrantFiled: October 24, 2016Date of Patent: February 26, 2019Assignee: Turfco Manufacturing, Inc.Inventors: George Kinkead, Steven Ferguson, Terrence R Bondeson, Tom Fiske, Roger Lee Larson
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Publication number: 20170034987Abstract: Tine assemblies (100a, 100b, 104) are secured by a single bolt (126) extending diametrically through each tine (120) located in a cavity (112) of a tine plate (110). An outer tine assembly (104) is connected to a sleeve (116) rotatably mounted on independently rotatable shafts (102) to which inner tine assemblies (100a, 100b) are connected. A tine cover (50) removably closes an opening (40) in the top plate (28) and in which weights (70) are removably received over the tine assemblies (100a, 100b, 104). Transport wheels (134) are moveable by pivoting a stop plate (140) to position an upper pivot axis (150a) of an abutment bar (150) ahead of or behind the stop axis (142) and lower pivot axis (150b). A stop (146) positioned on the stop plate (140) without the use of tools adjusts the depth of the tine assemblies (100a, 100b, 104).Type: ApplicationFiled: October 24, 2016Publication date: February 9, 2017Inventors: George Kinkead, Steven Ferguson, Terrence R. Bondeson, Tom Fiske, Roger Lee Larson
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Patent number: 9474196Abstract: Tine assemblies (100a, 100b, 104) are secured by a single bolt (126) extending diametrically through each tine (120) located in a cavity (112) of a tine plate (110). An outer tine assembly (104) is connected to a sleeve (116) rotatably mounted on independently rotatable shafts (102) to which inner tine assemblies (100a, 100b) are connected. A tine cover (50) removably closes an opening (40) in the top plate (28) and in which weights (70) are removably received over the tine assemblies (100a, 100b, 104). Transport wheels (134) are moveable by pivoting a stop plate (140) to position an upper pivot axis (150a) of an abutment bar (150) ahead of or behind the stop axis (142) and lower pivot axis (150b). A stop (146) positioned on the stop plate (140) without the use of tools adjusts the depth of the tine assemblies (100a, 100b, 104).Type: GrantFiled: October 26, 2011Date of Patent: October 25, 2016Assignee: Turfco Manufacturing, Inc.Inventors: George Kinkead, Steven Ferguson, Terrence R. Bondeson, Tom Fiske, Roger Lee Larson
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Publication number: 20120103641Abstract: Tine assemblies (100a, 100b, 104) are secured by a single bolt (126) extending diametrically through each tine (120) located in a cavity (112) of a tine plate (110). An outer tine assembly (104) is connected to a sleeve (116) rotatably mounted on independently rotatable shafts (102) to which inner tine assemblies (100a, 100b) are connected. A tine cover (50) removably closes an opening (40) in the top plate (28) and in which weights (70) are removably received over the tine assemblies (100a, 100b, 104). Transport wheels (134) are moveable by pivoting a stop plate (140) to position an upper pivot axis (150a) of an abutment bar (150) ahead of or behind the stop axis (142) and lower pivot axis (150b). A stop (146) positioned on the stop plate (140) without the use of tools adjusts the depth of the tine assemblies (100a, 100b, 104).Type: ApplicationFiled: October 26, 2011Publication date: May 3, 2012Inventors: George Kinkead, Steven Ferguson, Terrence R. Bondeson, Tom Fiske, Roger Lee Larson