Patents by Inventor Dennis K. Lura

Dennis K. Lura 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).

  • Publication number: 20210381176
    Abstract: A curb former (10) is disclosed, and includes a rotatable drive shaft (20), a gutter drum (80), and a curb profiling drum (100). The gutter drum (80) is secured to the drive shaft (20) such that the drive shaft (20) and gutter drum (80) rotate together. The curb profiling drum (100) is detachably secured relative to both the drive shaft (20) and the gutter drum (80). This configuration allows one curb profiling drum (100) to be replaced with another curb profiling drum (100) to change the profile of a curb resulting from a curbing operation using the curb former (10).
    Type: Application
    Filed: August 18, 2021
    Publication date: December 9, 2021
    Inventor: Dennis K. Lura
  • Patent number: 11111637
    Abstract: A curb former (10) includes a rotatable drive shaft (20), a gutter drum (80), and a curb profiling drum (100). The gutter drum (80) is secured to the drive shaft (20) such that the drive shaft (20) and gutter drum (80) rotate together. The curb profiling drum (100) is detachably secured relative to both the drive shaft (20) and the gutter drum (80). This configuration allows one curb profiling drum (100) to be replaced with another curb profiling drum (100) to change the profile of a curb resulting from a curbing operation using the curb former (10).
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: September 7, 2021
    Assignee: LURA ENTERPRISES, INC.
    Inventor: Dennis K. Lura
  • Publication number: 20190211515
    Abstract: A curb former (10) is disclosed, and includes a rotatable drive shaft (20), a gutter drum (80), and a curb profiling drum (100). The gutter drum (80) is secured to the drive shaft (20) such that the drive shaft (20) and gutter drum (80) rotate together. The curb profiling drum (100) is detachably secured relative to both the drive shaft (20) and the gutter drum (80). This configuration allows one curb profiling drum (100) to be replaced with another curb profiling drum (100) to change the profile of a curb resulting from a curbing operation using the curb former (10).
    Type: Application
    Filed: December 20, 2018
    Publication date: July 11, 2019
    Inventor: Dennis K. Lura
  • Patent number: 9879389
    Abstract: A cement screeding system in the form of a powered roller screed with a wet screed attachment. The wet screed attachment includes a wet screed shoe. A handle is rotationally isolated from the screed roller and is rigidly coupled to this wet screed shoe. As such, motion of this handle is transmitted to the wet screed shoe in a replicating fashion.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: January 30, 2018
    Assignee: LURA ENTERPRISES, INC.
    Inventor: Dennis K. Lura
  • Patent number: 8419313
    Abstract: A rotating cylinder cement screeding system having a drive assembly and handle at one end for powering and controlling the screeding system. The rotating cylinder may be defined by one or more tubular screed roller sections of varying lengths, thereby allowing a user to customize the length of the system to match a specific cement pour. Further, each tubular screed roller section may be supplied with a male and female end for interlocking with each other and for receiving a variety of add-on attachments. At least one riser assembly may be interconnected to a drive assembly end and/or a non-driven end of the rotating cylinder cement screeding system. The riser assembly may elevate the rotating cylinder a distance above a finished slab to prevent the rotating cylinder from contacting the finished slab during a screeding operation.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: April 16, 2013
    Assignee: Lura Enterprises, Inc.
    Inventor: Dennis K. Lura
  • Patent number: 8221027
    Abstract: A powered roller screed (366) is disclosed, that uses a dual-drive power unit (370) and a screed roller (368). A power source (372) of the dual-drive power unit (370) includes a first drive output (374) and a second drive output (376), which rotate in the same direction and at the same rate. Each of the first drive output (374) and the second drive output (376) may be used to rotate the screed roller (368). For instance, the first drive output (374) could be attached to a first end of the screed roller (368), or the second drive output (376) could be attached to the second end of the screed roller (368), all to rotate the screed roller (368) in the same direction as the screed roller (368) is being pulled over wet concrete (364).
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: July 17, 2012
    Assignee: Lura Enterprises, Inc.
    Inventor: Dennis K. Lura
  • Publication number: 20120177441
    Abstract: A rotating cylinder cement screeding system having a drive assembly and handle at one end for powering and controlling the screeding system. The rotating cylinder may be defined by one or more tubular screed roller sections of varying lengths, thereby allowing a user to customize the length of the system to match a specific cement pour. Further, each tubular screed roller section may be supplied with a male and female end for interlocking with each other and for receiving a variety of add-on attachments. At least one riser assembly may be interconnected to a drive assembly end and/or a non-driven end of the rotating cylinder cement screeding system. The riser assembly may elevate the rotating cylinder a distance above a finished slab to prevent the rotating cylinder from contacting the finished slab during a screeding operation.
    Type: Application
    Filed: March 20, 2012
    Publication date: July 12, 2012
    Inventor: Dennis K. Lura
  • Patent number: 8137026
    Abstract: A rotating cylinder cement screeding system having a drive assembly and handle at one end for powering and controlling the screeding system. The rotating cylinder may be defined by one or more tubular screed roller sections of varying lengths, thereby allowing a user to customize the length of the system to match a specific cement pour. Further, each tubular screed roller section may be supplied with a male and female end for interlocking with each other and for receiving a variety of add-on attachments. At least one riser assembly may be interconnected to a drive assembly end and/or a non-driven end of the rotating cylinder cement screeding system. The riser assembly may elevate the rotating cylinder a distance above a finished slab to prevent the rotating cylinder from contacting the finished slab during a screeding operation.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: March 20, 2012
    Assignee: Lura Enterprises, Inc.
    Inventor: Dennis K. Lura
  • Publication number: 20120045282
    Abstract: A powered roller screed (366) is disclosed, that uses a dual-drive power unit (370) and a screed roller (368). A power source (372) of the dual-drive power unit (370) includes a first drive output (374) and a second drive output (376), which rotate in the same direction and at the same rate. Each of the first drive output (374) and the second drive output (376) may be used to rotate the screed roller (368). For instance, the first drive output (374) could be attached to a first end of the screed roller (368), or the second drive output (376) could be attached to the second end of the screed roller (368), all to rotate the screed roller (368) in the same direction as the screed roller (368) is being pulled over wet concrete (364).
    Type: Application
    Filed: February 23, 2011
    Publication date: February 23, 2012
    Inventor: DENNIS K. LURA
  • Publication number: 20110188930
    Abstract: A powered roller screed with a curb attachment is disclosed. The powered roller screed may include a screed roller that is offset (e.g., vertically) from one or more curb rollers used by the curb attachment. In one embodiment, the amount of offset between the screed roller and each such curb roller is adjustable. Generally, each curb roller used by the curb attachment may engage and roller along an upper wall of a curb as screeding operations are conducted on poured concrete alongside the curb.
    Type: Application
    Filed: April 29, 2010
    Publication date: August 4, 2011
    Inventor: Dennis K. Lura
  • Patent number: 7959374
    Abstract: A rotating cylinder cement screeding system having a drive assembly and handle at one end for powering and controlling the screeding system. The rotating cylinder is made of tubular screed rollers of varying lengths allowing a user to customize the length of the system to match a specific cement pour. Further, each tubular screed roller is supplied with a male and female end for interlocking with each other and for receiving a variety of add on attachments. One of these attachments is a center anchor member that allows the screeding system to be used to finish circular concrete pours. In this regard, the center anchor member may be used to anchor a non-powered end of the rotating cylinder when finishing circular concrete pours.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: June 14, 2011
    Assignee: Lura Enterprises, Inc.
    Inventor: Dennis K. Lura
  • Publication number: 20100189500
    Abstract: A rotating cylinder cement screeding system having a drive assembly and handle at one end for powering and controlling the screeding system. The rotating cylinder is made of tubular screed rollers of varying lengths allowing a user to customize the length of the system to match a specific cement pour. Further, each tubular screed roller is supplied with a male and female end for interlocking with each other and for receiving a variety of add on attachments. The rotating cylinder may also be equipped with a constant velocity type U-joint to allow the rotating cylinder to flex and thus, allow for pours with crowns or valleys, as need by the cement installer.
    Type: Application
    Filed: April 2, 2010
    Publication date: July 29, 2010
    Applicant: LURA ENTEPRISES, INC.
    Inventor: Dennis K. Lura
  • Publication number: 20100183370
    Abstract: A rotating cylinder cement screeding system having a drive assembly and handle at one end for powering and controlling the screeding system. The rotating cylinder may be defined by one or more tubular screed roller sections of varying lengths, thereby allowing a user to customize the length of the system to match a specific cement pour. Further, each tubular screed roller section may be supplied with a male and female end for interlocking with each other and for receiving a variety of add-on attachments. At least one riser assembly may be interconnected to a drive assembly end and/or a non-driven end of the rotating cylinder cement screeding system. The riser assembly may elevate the rotating cylinder a distance above a finished slab to prevent the rotating cylinder from contacting the finished slab during a screeding operation.
    Type: Application
    Filed: January 22, 2009
    Publication date: July 22, 2010
    Inventor: Dennis K. Lura
  • Patent number: 7704012
    Abstract: A rotating cylinder cement screeding system having a drive assembly and handle at one end for powering and controlling the screeding system. The rotating cylinder is made of tubular screed rollers of varying lengths allowing a user to customize the length of the system to match a specific cement pour. Further, each tubular screed roller is supplied with a male and female end for interlocking with each other and for receiving a variety of add on attachments. The rotating cylinder may also be equipped with a constant velocity type U-joint to allow the rotating cylinder to flex and thus, allow for pours with crowns or valleys, as need by the cement installer.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: April 27, 2010
    Assignee: Lura Enterprises, Inc.
    Inventor: Dennis K. Lura
  • Publication number: 20090252554
    Abstract: A powered roller screed (366) is disclosed, that uses a dual-drive power unit (370) and a screed roller (368). A power source (372) of the dual-drive power unit (370) includes a first drive output (374) and a second drive output (376), which rotate in the same direction and at the same rate. Each of the first drive output (374) and the second drive output (376) may be used to rotate the screed roller (368). For instance, the first drive output (374) could be attached to a first end of the screed roller (368), or the second drive output (376) could be attached to the second end of the screed roller (368), all to rotate the screed roller (368) in the same direction as the screed roller (368) is being pulled over wet concrete (364).
    Type: Application
    Filed: January 28, 2009
    Publication date: October 8, 2009
    Inventor: DENNIS K. LURA
  • Publication number: 20090226258
    Abstract: A rotating cylinder cement screeding system having a drive assembly and handle at one end for powering and controlling the screeding system. The rotating cylinder is made of tubular screed rollers of varying lengths allowing a user to customize the length of the system to match a specific cement pour. Further, each tubular screed roller is supplied with a male and female end for interlocking with each other and for receiving a variety of add on attachments. The rotating cylinder may also be equipped with a constant velocity type U-joint to allow the rotating cylinder to flex and thus, allow for pours with crowns or valleys, as need by the cement installer.
    Type: Application
    Filed: May 19, 2009
    Publication date: September 10, 2009
    Applicant: LURA ENTERPRISES, INC.
    Inventor: Dennis K. LURA
  • Patent number: 7544012
    Abstract: A rotating cylinder cement screeding system having a drive assembly and handle at one end for powering and controlling the screeding system. The rotating cylinder is made of tubular screed rollers of varying lengths allowing a user to customize the length of the system to match a specific cement pour. Further, each tubular screed roller is supplied with a male and female end for interlocking with each other and for receiving a variety of add on attachments. The rotating cylinder may also be equipped with a constant velocity type U-joint to allow the rotating cylinder to flex and thus, allow for pours with crowns or valleys, as need by the cement installer.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: June 9, 2009
    Assignee: Lura Enterprises, Inc.
    Inventor: Dennis K. Lura