Patents by Inventor Andrew L. Dvorak
Andrew L. Dvorak 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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Publication number: 20170007090Abstract: A utility vehicle can comprise a wheeled platform, a motor coupled to the platform and configured to propel the platform, at least one cleaning element coupled to the platform, wherein the at least one cleaning element is movable between a collapsed position and an expanded position, and one or more controls configured to move the at least one cleaning element between the collapsed position and the expanded position. The at least one cleaning element can also be movable between a raised position and a lowered position relative to the wheeled platform, and the one or more controls can further be configured to move the at least one cleaning element between the raised position and the lowered position.Type: ApplicationFiled: April 6, 2015Publication date: January 12, 2017Inventors: Daniel T. Johnson, Andrew L. Dvorak
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Publication number: 20150203140Abstract: A cart transporting apparatus including a hitch assembly and a cart coupling assembly. The hitch assembly may include an elongated body, at least one catch member, and a hitch stop. The hitch stop may be, for example, a rotating hitch stop or a sliding hitch stop. The rotating hitch stop may include at least three flanges configured to abut a cart and may further include a detent mechanism. The cart coupling assembly may include at least a first portion and a second portion. The first portion may be pivotally coupled to the second portion. The first portion may include first and second engagement members. The second portion may include third and fourth engagement members.Type: ApplicationFiled: October 1, 2014Publication date: July 23, 2015Inventors: Paul D. Holtan, Andrew L. Dvorak
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Patent number: 9010771Abstract: An apparatus for transporting carts including a machine body, a steering control arranged on the body, a steering pedestal pivotally arranged with respect to the body, and a selection mechanism adapted to be selectively coupleable between the body and the steering pedestal providing for a caster mode and a steering mode respectively. A method of using a dual mode utility machine including depressing a first lever thereby engaging a pivoting selector into a steering pedestal engaging position and controlling the direction of the machine by rotatably manipulating a tiller, and depressing a second lever thereby disengaging the pivoting selector from a steering pedestal engaging position to a body engaging position and controlling the direction of the machine by pushing and/or pulling a machine from side to side via a fixed tiller.Type: GrantFiled: November 10, 2009Date of Patent: April 21, 2015Assignee: Dane Technologies, Inc.Inventors: Paul David Holtan, Andrew L. Dvorak
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Patent number: 8997905Abstract: A utility vehicle can comprise a wheeled platform, a motor coupled to the platform and configured to propel the platform, at least one cleaning element coupled to the platform, wherein the at least one cleaning element is movable between a collapsed position and an expanded position, and one or more controls configured to move the at least one cleaning element between the collapsed position and the expanded position. The at least one cleaning element can also be movable between a raised position and a lowered position relative to the wheeled platform, and the one or more controls can further be configured to move the at least one cleaning element between the raised position and the lowered position.Type: GrantFiled: June 29, 2012Date of Patent: April 7, 2015Assignee: Dane Technologies, Inc.Inventors: Daniel T. Johnson, Andrew L. Dvorak
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Patent number: 8870211Abstract: A cart transporting apparatus including a hitch assembly and a cart coupling assembly. The hitch assembly may include an elongated body, at least one catch member, and a hitch stop. The hitch stop may be, for example, a rotating hitch stop or a sliding hitch stop. The rotating hitch stop may include at least three flanges configured to abut a cart and may further include a detent mechanism. The cart coupling assembly may include at least a first portion and a second portion. The first portion may be pivotally coupled to the second portion. The first portion may include first and second engagement members. The second portion may include third and fourth engagement members.Type: GrantFiled: December 21, 2012Date of Patent: October 28, 2014Assignee: Dane Technologies, Inc.Inventors: Paul D Holtan, Andrew L Dvorak
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Publication number: 20130098698Abstract: A utility vehicle can comprise a wheeled platform, a motor coupled to the platform and configured to propel the platform, at least one cleaning element coupled to the platform, wherein the at least one cleaning element is movable between a collapsed position and an expanded position, and one or more controls configured to move the at least one cleaning element between the collapsed position and the expanded position. The at least one cleaning element can also be movable between a raised position and a lowered position relative to the wheeled platform, and the one or more controls can further be configured to move the at least one cleaning element between the raised position and the lowered position.Type: ApplicationFiled: June 29, 2012Publication date: April 25, 2013Inventors: Daniel T. Johnson, Andrew L. Dvorak
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Patent number: 8360459Abstract: A cart transporting apparatus including a hitch assembly and a cart coupling assembly. The hitch assembly may include an elongated body, at least one catch member, and a hitch stop. The hitch stop may be, for example, a rotating hitch stop or a sliding hitch stop. The rotating hitch stop may include at least three flanges configured to abut a cart and may further include a detent mechanism. The cart coupling assembly may include at least a first portion and a second portion. The first portion may be pivotally coupled to the second portion. The first portion may include first and second engagement members. The second portion may include third and fourth engagement members.Type: GrantFiled: April 9, 2009Date of Patent: January 29, 2013Assignee: Dane Technologies, Inc.Inventors: Paul Holtan, Andrew L. Dvorak
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Publication number: 20110109054Abstract: An apparatus for transporting carts including a machine body, a steering control arranged on the body, a steering pedestal pivotally arranged with respect to the body, and a selection mechanism adapted to be selectively coupleable between the body and the steering pedestal providing for a caster mode and a steering mode respectively. A method of using a dual mode utility machine including depressing a first lever thereby engaging a pivoting selector into a steering pedestal engaging position and controlling the direction of the machine by rotatably manipulating a tiller, and depressing a second lever thereby disengaging the pivoting selector from a steering pedestal engaging position to a body engaging position and controlling the direction of the machine by pushing and/or pulling a machine from side to side via a fixed tiller.Type: ApplicationFiled: November 10, 2009Publication date: May 12, 2011Inventors: Paul David Holtan, Andrew L. Dvorak
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Publication number: 20090267322Abstract: A cart transporting apparatus including a hitch assembly and a cart coupling assembly. The hitch assembly may include an elongated body, at least one catch member, and a hitch stop. The hitch stop may be, for example, a rotating hitch stop or a sliding hitch stop. The rotating hitch stop may include at least three flanges configured to abut a cart and may further include a detent mechanism. The cart coupling assembly may include at least a first portion and a second portion. The first portion may be pivotally coupled to the second portion. The first portion may include first and second engagement members. The second portion may include third and fourth engagement members.Type: ApplicationFiled: April 9, 2009Publication date: October 29, 2009Inventors: Paul D. Holtan, Andrew L. Dvorak