Patents by Inventor Tomasz PIOTROWSKI

Tomasz PIOTROWSKI 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).

  • Patent number: 11533840
    Abstract: Described herein are self-propel accessories for walk behind/push-driven machines/devices comprising: drive assembly motor(s) operatively connected to at least one power supply; at least one drive assembly for imparting drive from the drive assembly motor(s) to at least one accessory wheel assembly that is operatively connected to an output shaft of the drive assembly motor(s) and one of an axle or a drive engagement surface of the at least one accessory wheel assembly having accessory ground engagement wheel(s) coupled to at least one end of the axle for rotation therewith; a controller for the drive assembly motor(s) having an actuator for engaging the drive assembly motor(s); and an attachment assembly for coupling the drive assembly motor(s), the at least one drive assembly and the at least one accessory wheel assembly to a housing of the push-driven machine or device in place of a wheel assembly/sub-assembly of the push-driven machine or device.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: December 27, 2022
    Assignee: CANADIAN TIRE CORPORATION, LIMITED
    Inventors: Tomasz Piotrowski, Michael Fuina, Victor Lai
  • Patent number: 11313090
    Abstract: Snow removal machines are provided that have an auger assembly for directing snow rearwards to be received by a discharge chute, and an auxiliary snow moving assembly for directing snow rearwards to be received by the discharge chute. The auger assembly has auger blade(s) coupled to an auger axle for rotation therewith about a first axis defined by the auger axle. The auxiliary snow moving assembly has snow moving member(s) coupled to an auxiliary axle for rotation therewith about a second axis defined by the auxiliary axle. The auxiliary axle is lower and rearwards of the auger axle towards the discharge chute; and an auxiliary drive assembly is configured to rotationally couple the auxiliary axle to the auger axle such that rotation of the auxiliary axle is driven by rotation of the auger axle.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: April 26, 2022
    Assignee: Canadian Tire Corporation, Limited
    Inventors: Tomasz Piotrowski, Michael Fuina, Sean Zylstra, Timothy James Sommerfeld, Michael Daniel Vermeer, Michael Mackuliak, Shaun Zimmerman, Victor Lai
  • Publication number: 20200171644
    Abstract: A handle is attachable to a shaft, for example, of a shovel. The shaft extends lengthwise along a shaft axis. The handle includes a collar defining an opening to receive the shaft, the collar rotatable about the shaft axis; a transverse arm extending along a transverse axis from a first end to a second end opposite the first end, the transverse arm rotatably connected to the collar at the first end; and a grip extending from the second end of the transverse arm. The grip is rotatable about the transverse axis and may be selectively axially movable along the transverse axis.
    Type: Application
    Filed: December 3, 2019
    Publication date: June 4, 2020
    Inventors: Tomasz Piotrowski, Michael Fuina, Victor Lai
  • Publication number: 20200157755
    Abstract: Described herein are snow removal machines having at least one auxiliary snow moving member. According to some embodiments, the snow removal machines comprise: an auger assembly for directing snow rearwards to be received by a discharge chute, the auger assembly having auger blade(s) coupled to an auger axle for rotation therewith about a first axis defined by the auger axle; an auxiliary snow moving assembly for directing snow rearwards to be received by the discharge chute, the auxiliary snow moving assembly having snow moving member(s) coupled to an auxiliary axle for rotation therewith about a second axis defined by the auxiliary axle, wherein the auxiliary axle is lower and rearwards of the auger axle towards the discharge chute; and an auxiliary drive assembly configured to rotationally couple the auxiliary axle to the auger axle such that rotation of the auxiliary axle is driven by rotation of the auger axle.
    Type: Application
    Filed: November 13, 2019
    Publication date: May 21, 2020
    Inventors: Tomasz PIOTROWSKI, Michael FUINA, Sean ZYLSTRA, Timothy James SOMMERFELD, Michael Daniel VERMEER, Michael MACKULIAK, Shaun ZIMMERMAN, Victor LAI
  • Publication number: 20200128729
    Abstract: Described herein are self-propel accessories for walk behind/push-driven machines/devices comprising: drive assembly motor(s) operatively connected to at least one power supply; at least one drive assembly for imparting drive from the drive assembly motor(s) to at least one accessory wheel assembly that is operatively connected to an output shaft of the drive assembly motor(s) and one of an axle or a drive engagement surface of the at least one accessory wheel assembly having accessory ground engagement wheel(s) coupled to at least one end of the axle for rotation therewith; a controller for the drive assembly motor(s) having an actuator for engaging the drive assembly motor(s); and an attachment assembly for coupling the drive assembly motor(s), the at least one drive assembly and the at least one accessory wheel assembly to a housing of the push-driven machine or device in place of a wheel assembly/sub-assembly of the push-driven machine or device.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 30, 2020
    Inventors: Tomasz PIOTROWSKI, Michael FUINA, Victor LAI