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公开(公告)号：US11547047B2
公开(公告)日：2023-01-10
申请号：US15991524
申请日：2018-05-29
Applicant: MTD Products Inc
Inventor： Axel Schaedler , Jeffery Legan
IPC: A01D34/47 , A01D67/00 , A01D34/81 , A01D101/00
Abstract: A lawn maintenance device has a transverse center line, a frame, and a power source including an output shaft attached to the frame. The lawn maintenance device further includes a rotating cutting blade. A left side is located on one side of the transverse center line and a right side located on a second side of the transverse center line. A plurality of ground engaging members are attached to the frame enabling movement of the lawn maintenance device along an associated driven surface. The ground engaging members on the left side are located at a first distance from the transverse center line that is different from a second distance that those on the right side are located from the transverse center line. Another example includes ground engaging members on opposite sides of the lawn maintenance device being located at different distances from a central axis of the cutting blade.
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公开(公告)号：US11540441B2
公开(公告)日：2023-01-03
申请号：US17073453
申请日：2020-10-19
Applicant: MTD PRODUCTS INC
Inventor： Axel Schaedler , Peter J. Buchanan
Abstract: A high-efficiency blade for a lawn maintenance tool includes a central axis and a mounting portion located on the central axis. The high-efficiency blade includes a cutting blade and a cutting blade sharpened leading edge. A cleaning blade is vertically offset from the cutting blade and is configured to mulch the associated clippings from vegetation and reduce an associated accumulation of clippings on an underside of an associated mower deck. The lawn maintenance tool can also include a deck having a separation distance between the cleaning blade and an underside of the deck. The deck can include an elevation change to vary the separation distance. The deck and high-efficiency blade can also include a forward or rearward tilt.
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公开(公告)号：US20210146996A1
公开(公告)日：2021-05-20
申请号：US17027584
申请日：2020-09-21
Applicant: MTD Products Inc
Inventor： Axel Schaedler , Hans Hauser , Rick Ruebusch , Ian David Cornwell
Abstract: In a broad respect, vehicles that are capable of making a low- to zero-radius turn using the independent rotation of drive wheels and by turning the non-driving steerable structure or structures (such as wheels) with a steering input device (in some embodiments, the driving wheels also may be capable of being turned). This may be accomplished using a steering system, a speed control system and an integration device (together, a control system) that are configured to work together to provide correct steering in forward and reverse, and, in some embodiments, to reduce the speed of the outboard drive wheel of the vehicle when it enters an extreme turn under constant speed input. Different systems configured for use in such vehicles are included.
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公开(公告)号：US10674659B2
公开(公告)日：2020-06-09
申请号：US16519451
申请日：2019-07-23
Applicant: MTD Products Inc
Inventor： Timothy Ladd, Jr. , Gary Hobrath , Axel Schaedler , Brian Milliff
IPC: A01D34/73 , A01D34/64 , A01D34/835 , A01D101/00
Abstract: A mower blade assembly attaches to a rotatable spindle and includes a mounting plate which defines a first pin aperture. The mounting plate and a retaining plate are attached to the rotatable spindle. The retaining plate defines a second pin aperture. A movable pin plate comprises a pin. A blade is selectively attachable to the mounting plate. The blade defines a retaining plate aperture and a third pin aperture. A biasing member urges the movable pin plate from a disengaged position to an engaged position. The pin is engageable with the pin apertures for mounting and retaining the cutting blade to the mounting plate. The blade is attached by moving the blade over the retaining plate aperture, urging the movable pin plate to the disengaged position, rotating the blade, and releasing the movable pin plate. Another embodiment includes a force finger.
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公开(公告)号：US10299431B2
公开(公告)日：2019-05-28
申请号：US15913390
申请日：2018-03-06
Applicant: MTD Products Inc
Inventor： Timothy C. Ladd, Jr. , Gary Hobrath , Axel Schaedler , Brian Milliff
IPC: A01D34/73 , A01D34/64 , A01D34/835 , A01D101/00
Abstract: A mower blade assembly attaches to a rotatable spindle and includes a mounting plate which defines a first pin aperture. The mounting plate and a retaining plate are attached to the rotatable spindle. The retaining plate defines a second pin aperture. A movable pin plate comprises a pin. A blade is selectively attachable to the mounting plate. The blade defines a retaining plate aperture and a third pin aperture. A biasing member urges the movable pin plate from a disengaged position to an engaged position. The pin is engageable with the pin apertures for mounting and retaining the cutting blade to the mounting plate. The blade is attached by moving the blade over the retaining plate aperture, urging the movable pin plate to the disengaged position, rotating the blade, and releasing the movable pin plate. Another embodiment includes a force finger.
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Patent Agency Ranking
公开(公告)号：US10208443B2
公开(公告)日：2019-02-19
申请号：US15982191
申请日：2018-05-17
Applicant: MTD PRODUCTS INC
Inventor： Jimmy N. Eavenson, Sr. , Axel Schaedler
IPC: E01H5/09
Abstract: A multiple-stage snow thrower having a housing, a power supply operatively connected to a plurality of drive shafts for rotating a plurality of stage assemblies. Each stage assembly of the multiple-stage snow thrower is configured to move snow either axially along the axis of rotation or radially away from the axis of rotation. The first stage assembly is configured to expel snow from the housing, thereby throwing the snow away from the snow thrower. The second, third, and fourth stages assemblies are configured to push the snow toward the longitudinal centerline of the housing and then rearwardly toward the first stage assembly.
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公开(公告)号：US10123479B2
公开(公告)日：2018-11-13
申请号：US15663375
申请日：2017-07-28
Applicant: MTD Products Inc
Inventor： Timothy Ladd, Jr. , Gary Hobrath , Axel Schaedler , Brian Milliff
IPC: A01D34/73 , A01D34/64 , A01D34/835 , A01D101/00
Abstract: A mower blade assembly attaches to a rotatable spindle and includes a mounting plate which defines a first pin aperture. The mounting plate and a retaining plate are attached to the rotatable spindle. The retaining plate defines a second pin aperture. A movable pin plate comprises a pin. A blade is selectively attachable to the mounting plate. The blade defines a retaining plate aperture and a third pin aperture. A biasing member urges the movable pin plate from a disengaged position to an engaged position. The pin is engageable with the pin apertures for mounting and retaining the cutting blade to the mounting plate. The blade is attached by moving the blade over the retaining plate aperture, urging the movable pin plate to the disengaged position, rotating the blade, and releasing the movable pin plate. Another embodiment includes a force finger.
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公开(公告)号：US20180274188A1
公开(公告)日：2018-09-27
申请号：US15544577
申请日：2016-01-27
Applicant: MTD Products Inc
Inventor： Axel Schaedler , Peter Buchanan
Abstract: Provided is a snow thrower impeller assembly (24) that defines a mounting slot (84) for a wiper (70). The wiper includes a wiper portion (86) that slides into the mounting slot to mount the wiper to the impeller (54). The wiper contacts an interior wall (56) of an associated impeller housing during rotational operation of the impeller in order to limit a gap (74) between an impeller blade (66) and the interior wall. The wiper can move radially inward and outward to remain in contact with the interior wall without input from the operator. Another embodiment of the impeller assembly includes impeller blades with a first portion (116) and a second portion (118). The second portion extends at a non-zero angle from the first blade portion of the impeller blade. Methods of improving the efficiency of the snow thrower are also provided.
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公开(公告)号：US20180266064A1
公开(公告)日：2018-09-20
申请号：US15982191
申请日：2018-05-17
Applicant: MTD PRODUCTS INC
Inventor： Jimmy N. Eavenson, SR. , Axel Schaedler
IPC: E01H5/09
Abstract: A multiple-stage snow thrower having a housing, a power supply operatively connected to a plurality of drive shafts for rotating a plurality of stage assemblies. Each stage assembly of the multiple-stage snow thrower is configured to move snow either axially along the axis of rotation or radially away from the axis of rotation. The first stage assembly is configured to expel snow from the housing, thereby throwing the snow away from the snow thrower. The second, third, and fourth stages assemblies are configured to push the snow toward the longitudinal centerline of the housing and then rearwardly toward the first stage assembly.
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公开(公告)号：US09982405B2
公开(公告)日：2018-05-29
申请号：US15446429
申请日：2017-03-01
Applicant: MTD PRODUCTS INC
Inventor： Jimmy N. Eavenson, Sr. , Axel Schaedler
IPC: E01H5/09
Abstract: A multiple-stage snow thrower having a housing, a power supply operatively connected to a plurality of drive shafts for rotating a plurality of stage assemblies. Each stage assembly of the multiple-stage snow thrower is configured to move snow either axially along the axis of rotation or radially away from the axis of rotation. The first stage assembly is configured to expel snow from the housing, thereby throwing the snow away from the snow thrower. The second, third, and fourth stages assemblies are configured to push the snow toward the longitudinal centerline of the housing and then rearwardly toward the first stage assembly.
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