Patents Assigned to Marshalltown Company
  • Patent number: 11111681
    Abstract: A power head for a powered concrete roller screed includes a handle and a driver housing at a distal end of the handle. A cordless, battery-operated driver is received in the driver housing. A head actuator includes a translatable link extending along the handle and an eccentric cam. The eccentric cam is operatively connected to the translatable link within the drive housing such that translation of the translation link imparts rotation of the eccentric cam about a rotational axis of the eccentric cam to an actuated position. The eccentric cam is adjacent a trigger of a cordless, battery-operated driver and is configured to depress the trigger when the eccentric cam is rotated about its rotational axis to the actuated position.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: September 7, 2021
    Assignee: Marshalltown Company
    Inventors: Charles H. Cowie, Michael Shane Grigg
  • Patent number: 10549415
    Abstract: A handle assembly for a trowel. The handle assembly includes a handle body, and a grip mounted on and surrounding the handle body to provide a grip surface for a user of the trowel. The grip including a plurality of individual rings positioned end-to-end on the handle body. The grip and handle body are shaped and arranged for complementary mating engagement configured to inhibit rotation of the grip relative to the handle body.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: February 4, 2020
    Assignee: Marshalltown Company
    Inventors: John T. Hughes, Charles H. Cowie
  • Publication number: 20190249446
    Abstract: A lifting device for elevating a load includes a telescoping mast having an inner mast section telescopically received within an outer mast section and configured to extend in an upward direction and retract in a downward direction relative to the outer mast section. An emergency brake is secured to the inner mast section and includes first and second eccentrics configured to rotate relative to the inner mast section between an unlocked position, in which the first and second eccentrics are free from locking engagement with the outer mast section to allow retraction of the inner mast section, and a locked position, in which the first and second eccentrics are in locking engagement with the outer mast section to inhibit retraction of the inner mast section. A base of the lifting device may include a holder having a tapering interior for receiving the telescoping mast.
    Type: Application
    Filed: February 15, 2018
    Publication date: August 15, 2019
    Applicant: Marshalltown Company
    Inventor: Joseph F. Partain
  • Publication number: 20170291293
    Abstract: A handle assembly for a trowel. The handle assembly includes a handle body, and a grip mounted on and surrounding the handle body to provide a grip surface for a user of the trowel. The grip including a plurality of individual rings positioned end-to-end on the handle body. The grip and handle body are shaped and arranged for complementary mating engagement configured to inhibit rotation of the grip relative to the handle body.
    Type: Application
    Filed: April 7, 2017
    Publication date: October 12, 2017
    Applicant: Marshalltown Company
    Inventors: John T. Hughes, Charles H. Cowie
  • Patent number: 9643311
    Abstract: An extension handle for bull floats and other tools is presented with an octagonal shaped handle. A connector end is provided to allow for additional lengths of extension to be added to the handle.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: May 9, 2017
    Assignee: Marshalltown Company
    Inventor: Charles Henry Cowie
  • Patent number: 8733462
    Abstract: This invention is related to a portable texture-spraying apparatus for uniformly dispersing a viscous material. This apparatus broadly includes a tank assembly having a body with an inner wall that defines a sealed cavity, and a piston assembly slidably disposed within the sealed cavity. The piston assembly divides the sealed cavity into an air-side chamber and a material-side chamber by providing an airtight seal therebetween. Additionally an air-control assembly is provided that broadly includes a pressure-control mechanism configured for receiving compressed air and routing a controlled pneumatic pressure to a directional valve configured for adjusting between a dispensing mode and a loading mode. In dispensing mode, the directional valve routes the controlled pneumatic pressure to the air-side chamber biasing the piston assembly toward the material-side chamber.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: May 27, 2014
    Assignee: Marshalltown Company
    Inventors: John Reynolds, Troy Thurber
  • Patent number: 7997511
    Abstract: This invention is related to a portable texture-spraying apparatus for uniformly dispersing a viscous material. This apparatus broadly includes a tank assembly having a body with an inner wall that defines a sealed cavity, and a piston assembly slidably disposed within the sealed cavity. The piston assembly divides the sealed cavity into an air-side chamber and a material-side chamber by providing an airtight seal therebetween. Additionally an air-control assembly is provided that broadly includes a pressure-control mechanism configured for receiving compressed air and routing a controlled pneumatic pressure to a directional valve configured for adjusting between a dispensing mode and a loading mode. In dispensing mode, the directional valve routes the controlled pneumatic pressure to the air-side chamber biasing the piston assembly toward the material-side chamber.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: August 16, 2011
    Assignee: Marshalltown Company
    Inventors: John Reynolds, Troy Thurber
  • Patent number: 7981008
    Abstract: An industrial stilt generally includes a floor-engaging member having a heel portion and a toe portion, a load-bearing riser pivotally coupled with the heel portion of the floor-engaging member, a biasing assembly pivotally coupled with and between the toe portion of the floor-engaging member and the load-bearing riser, a foot-engaging member, a leg support assembly, and a leg cuff assembly. The biasing assembly assists in preventing excessive forward or backward leans and maintains the load-bearing riser and the user in a substantially vertical, upright position. The position of the leg cuff assembly on the user's leg and the user's elevation may be easily and safely adjusted using bracket and load-bearing riser adjustment and locking assemblies.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: July 19, 2011
    Assignee: Marshalltown Company
    Inventors: James T. Sener, David Mathieu, Christopher D. Hageman, Jack D. Murders
  • Patent number: 7748372
    Abstract: This invention is related to an adaptable tile-cutter apparatus for scoring and breaking disparately-sized tiles. The apparatus broadly includes: a pair of end castings removably; a rigid crossbeam and a travel rail spanning the pair of end castings; vertical-adjustment mechanisms mounted to the travel rail; one or more platform assemblies each coupled to the rigid crossbeam; and a cutting mechanism slidably engaged to the travel rail. The vertical-adjustment mechanisms individually adjust a height of the travel rail with respect to the pair of end castings. In addition, the rigid crossbeam and the travel rail comprise a first matched set, and are each removably coupled to the pair of end castings. Accordingly, a second matched set that includes another rigid crossbeam and another travel rail possessing lengths at variance with the rigid crossbeam and the travel rail of the first matched set may be interchanged therewith.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: July 6, 2010
    Assignee: Marshalltown Company
    Inventors: Andrew Chase Harding, Troy Thurber
  • Patent number: 7621023
    Abstract: An adjustable handle and method of adjusting the cross-sectional shape of a handle is disclosed. The handle comprises a central core having a plurality of axially extending grooves each having at least two radially extending ramps as well as a sleeve having a plurality of flexible expandable members with a plurality of fins in sliding relationship with the axially extending grooves and ramps. When a user turns a knob of the handle, the sleeve is directed to slide axially within the groove such that the fins of the flexible expandable members contact the ramps thereby altering the cross sectional shape of the handle over an axial distance.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: November 24, 2009
    Assignee: Marshalltown Company
    Inventor: Georgia A. Pyatt
  • Patent number: D735012
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: July 28, 2015
    Assignee: Marshalltown Company
    Inventor: Charles Henry Cowie
  • Patent number: D804266
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: December 5, 2017
    Assignee: Marshalltown Company
    Inventor: Charles H. Cowie
  • Patent number: D807134
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: January 9, 2018
    Assignee: Marshalltown Company
    Inventors: John T. Hughes, Charles H. Cowie
  • Patent number: D837022
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: January 1, 2019
    Assignee: Marshalltown Company
    Inventors: John T. Hughes, John M. Reynolds, Jarod Elsberry
  • Patent number: D842064
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: March 5, 2019
    Assignee: Marshalltown Company
    Inventors: John T. Hughes, John M. Reynolds, Jarod Elsberry
  • Patent number: D846964
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: April 30, 2019
    Assignee: Marshalltown Company
    Inventors: John T. Hughes, John M. Reynolds, Jarod Elsberry
  • Patent number: D956519
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: July 5, 2022
    Assignee: Marshalltown Company
    Inventors: Jim Bowie, Mark Fulmer, Noah Garwood, John T. Hughes, John M. Reynolds
  • Patent number: D956520
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: July 5, 2022
    Assignee: Marshalltown Company
    Inventors: Jim Bowie, Mark Fulmer, Noah Garwood, John T. Hughes, John M. Reynolds
  • Patent number: D962038
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: August 30, 2022
    Assignee: Marshalltown Company
    Inventors: Jim Bowie, Mark Fulmer, Noah Garwood, John T. Hughes, John M. Reynolds
  • Patent number: D971278
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: November 29, 2022
    Assignee: Marshalltown Company
    Inventors: Nathaniel P. Brand, Dalen E. Gunn