Patents Assigned to Dynabrade, Inc
  • Patent number: 8303380
    Abstract: A head for an orbital abrading machine comprising a housing, a shroud including inner and outer portions, defining a chamber between the inner and outer portions, a drive means for driving an abrading pad, the drive means at least partially enclosed by the housing and the shroud, wherein the drive means produces an exhaust which is directly vented into the chamber without leaving the head, and wherein the chamber includes at least one opening for directing the exhaust toward the abrading pad for cooling the pad with the exhaust.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: November 6, 2012
    Assignee: Dynabrade, Inc.
    Inventor: Frank Lehman
  • Patent number: 8286291
    Abstract: A two piece eraser assembly , including an eraser disk and an eraser hub for mounting and holding the eraser disk. The eraser hub includes upper and lower surfaces a flange at the peripheral edge of the hub and a stub shaft on the lower surface positioned axially with a throughbore. The eraser hub includes a plurality of spaced apertures for engaging with and detachably locking eraser disk extensions on the backside. The upper surface of the eraser disk includes a central recess and an aperture in the recess. The eraser disk includes a plurality of abrading teeth running radially from the central recess. The lower surface of the eraser disk further comprises a plurality of mounting elevations keyed for engaging with the spaced apertures or slots in the eraser hub for securely locking the eraser disk to the eraser hub.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: October 16, 2012
    Assignee: Dynabrade, Inc.
    Inventors: Mark Lampka, Matthew A. Giles
  • Patent number: 8057285
    Abstract: The present invention is an abrasive or abrading tool assembly comprising an abrasive or abrading tool having a housing, an air inlet port, and an exhaust outlet with a support for a wrist and forearm attached to the tool. In one embodiment including a pneumatically powered tool, the support extends toward and over the air inlet port and dust bag outlet. The abrading tool may be a rotary tool. The present invention also includes a wrist/forearm support for an abrading tool including a substantially flat body, two forks projecting from the body wherein each fork defines an orifice, and in which the orifices are positioned substantially opposite from each other, and possessing a support member that extends from the bottom of the body in the direction of the tool.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: November 15, 2011
    Assignee: Dynabrade, Inc.
    Inventors: Mark Lampka, Matthew Giles
  • Patent number: 8007347
    Abstract: The present invention relates to rotary abrading tools of the erasure-type. The invention includes a wheel assembly comprising an annular eraser wheel having an outer crown of radially directed teeth, a central core of an elastomeric material that radially expands during operation, and a pair of discoid hubs secured on opposite axial ends of the eraser wheel. The teeth of the eraser wheel are helically arranged.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: August 30, 2011
    Assignee: Dynabrade, Inc.
    Inventors: Mark Lampka, Matthew Giles
  • Publication number: 20110183586
    Abstract: A head for an orbital abrading machine comprising a housing, a shroud including inner and outer portions, defining a chamber between the inner and outer portions, a drive means for driving an abrading pad, the drive means at least partially enclosed by the housing and the shroud, wherein the drive means produces an exhaust which is directly vented into the chamber without leaving the head, and wherein the chamber includes at least one opening for directing the exhaust toward the abrading pad for cooling the pad with the exhaust.
    Type: Application
    Filed: January 26, 2010
    Publication date: July 28, 2011
    Applicant: DYNABRADE, INC.
    Inventor: Frank LEHMAN
  • Publication number: 20100151775
    Abstract: A removable head assembly for a combination rotary, including: a body; a rotatable element connected to the body and including an indentation or protrusion for fixing a pad assembly to the rotatable element; and a locking assembly including first and second elements. The body is connectable to a combination rotary tool and is rotatable about a first axis; the rotatable element is rotatable about a second axis; the indentation or protrusion is aligned with a third axis substantially parallel to the second axis; and the first element is displaceable to displace the second element to rotationally fix the rotatable element with respect to the body so that the first and third axes are co-linear, and the second axis is out of alignment with the first and third axes.
    Type: Application
    Filed: February 25, 2010
    Publication date: June 17, 2010
    Applicant: Dynabrade, Inc.
    Inventors: Mark Lampka, Thomas Orszagh
  • Patent number: 7713110
    Abstract: A head assembly for a rotary tool, comprising a body arranged for connection to a drive means, the drive means rotatable about a first axis of rotation; a rotatable element arranged for connection to a pad assembly, the rotatable element rotatable about a second axis of rotation disposed substantially parallel to the first axis of rotation; and, a locking assembly arranged to lock the rotatable element to the body to prevent rotation of the rotatable element relative to the body about the second axis of rotation.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: May 11, 2010
    Assignee: Dynabrade, Inc.
    Inventors: Mark Lampka, Matthew A. Giles
  • Publication number: 20090209182
    Abstract: A head assembly for a rotary tool, comprising a body arranged for connection to a drive means, the drive means rotatable about a first axis of rotation; a rotatable element arranged for connection to a pad assembly, the rotatable element rotatable about a second axis of rotation disposed substantially parallel to the first axis of rotation; and, a locking assembly arranged to lock the rotatable element to the body to prevent rotation of the rotatable element relative to the body about the second axis of rotation.
    Type: Application
    Filed: April 24, 2009
    Publication date: August 20, 2009
    Applicant: Dynabrade, Inc.
    Inventor: Mark LAMPKA
  • Publication number: 20090083916
    Abstract: A two piece eraser assembly for use as a rotary tool attachment for abrading surfaces enables quick and easy replacement of worn eraser disks without requiring the assistance of any hand held tools in either the removal or in the reinstallation process. The assembly, including aftermarket replacement parts therefor, comprise an eraser disk and an eraser hub for mounting and holding the eraser disk. The eraser hub includes upper and lower surfaces, wherein the eraser hub upper surface features a centrally positioned throughbore, a flange at the peripheral edge of the hub and a stub shaft on the lower surface positioned axially with the throughbore. The eraser hub includes a plurality of spaced apertures for engaging with and detachably locking eraser disk extensions on the backside, so the eraser disk is mounted flush with the eraser hub. The upper surface of the eraser disk includes a central recess and an aperture in the recess keyed for axially alignment with the throughbore of the eraser hub.
    Type: Application
    Filed: October 2, 2007
    Publication date: April 2, 2009
    Applicant: Dynabrade, Inc.
    Inventors: Mark Lampka, Matthew A. Giles
  • Publication number: 20080057842
    Abstract: A head assembly for a rotary tool, comprising a body arranged for connection to a drive means, the drive means rotatable about a first axis of rotation; a rotatable element arranged for connection to a pad assembly, the rotatable element rotatable about a second axis of rotation disposed substantially parallel to the first axis of rotation; and, a locking assembly arranged to lock the rotatable element to the body to prevent rotation of the rotatable element relative to the body about the second axis of rotation.
    Type: Application
    Filed: September 5, 2006
    Publication date: March 6, 2008
    Applicant: Dynabrade, Inc.
    Inventors: Mark Lampka, Matthew A. Giles
  • Patent number: 7153199
    Abstract: The present invention generally comprises a counterbalancing assembly for a random orbital machine including an adapter and a counterweight. The adapter includes a recess and the counterweight is disposed in the recess and detachably fastened to the adapter. In some aspects, the counterweight is fully enclosed within the recess. The adapter is configured for connection to a drive means for the machine and for connection to an abrasive pad assembly. The drive means is rotatable about a first axis of rotation. The abrasive pad assembly is rotatable about a second axis of rotation disposed parallel to the first axis of rotation. The adapter and the counterweight are configured to substantially counterbalance portions of the abrasive pad assembly not disposed concentrically about the first axis of rotation and forces to which the abrasive pad assembly is subjected to during use.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: December 26, 2006
    Assignee: Dynabrade, Inc.
    Inventor: Bryan D. Decker
  • Patent number: 7022002
    Abstract: A head portion for counterbalancing a random orbital machine including a first element adapted for connection to a drive means for the machine and to an abrasive pad assembly. The drive means is rotatable about a first axis of rotation and the abrasive pad assembly is rotatable about a second axis of rotation that is parallel to the first axis of rotation and lying within a plane common with the first axis. The head portion also includes a second element detachably connected to the first element. The first and second elements are configured to at least substantially counterbalance portions of the abrasive pad assembly not disposed concentrically of the first axis of rotation and forces to which the abrasive pad assembly is exposed during use as a result of the abrasive pad assembly engaging with a work surface.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: April 4, 2006
    Assignee: Dynabrade, Inc.
    Inventors: Mark Lampka, Bryan D. Decker
  • Publication number: 20050197052
    Abstract: A head portion for counterbalancing a random orbital machine including a first element adapted for connection to a drive means for the machine and to an abrasive pad assembly. The drive means is rotatable about a first axis of rotation and the abrasive pad assembly is rotatable about a second axis of rotation that is parallel to the first axis of rotation and lying within a plane common with the first axis. The head portion also includes a second element detachably connected to the first element. The first and second elements are configured to at least substantially counterbalance portions of the abrasive pad assembly not disposed concentrically of the first axis of rotation and forces to which the abrasive pad assembly is exposed during use as a result of the abrasive pad assembly engaging with a work surface.
    Type: Application
    Filed: March 3, 2004
    Publication date: September 8, 2005
    Applicant: Dynabrade, Inc.
    Inventors: Mark Lampka, Bryan Decker
  • Patent number: 6878049
    Abstract: A pneumatically operated, random orbital sander is disclosed as having an upper seal adapted to retard the entry of dust into an exposed or lowermost motor shaft supporting bearing and a lower seal adapted to retard the entry of dust into a motor shaft mounted bearing serving to couple the motor shaft to a sanding pad or disc.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: April 12, 2005
    Assignee: Dynabrade, Inc.
    Inventors: Richard A. Heidelberger, Bryan D. Decker
  • Publication number: 20040102145
    Abstract: A pneumatically operated, random orbital sander is disclosed as having an upper seal adapted to retard the entry of dust into an exposed or lowermost motor shaft supporting bearing and a lower seal adapted to retard the entry of dust into a motor shaft mounted bearing serving to couple the motor shaft to a sanding pad or disc.
    Type: Application
    Filed: November 26, 2002
    Publication date: May 27, 2004
    Applicant: Dynabrade, Inc.
    Inventors: Richard A. Heidelberger, Bryan D. Decker
  • Patent number: 6241464
    Abstract: A governor mechanism is mounted for rotation with a drive shaft about an axis, has one or more reaction nozzles for imparting rotational movement to the drive shaft, and one or more valve portions supported for radially directed sliding movement between first and second radially spaced positions for purposes of controlling flow of pressurized fluid to the nozzles and thus the rotational speed of the drive shaft. The valve portions are formed integrally with a ring-shaped mounting portion fabricated from resiliently deformable material. In alternative constructions, similar governor mechanisms are co-axially mounted with vane motors by a common drive shaft and the mechanisms employed to control flow of pressurized fluid to the vane motor.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: June 5, 2001
    Assignee: Dynabrade, Inc.
    Inventors: David E. Huffaker, Frank D. Lehman
  • Patent number: 6206771
    Abstract: A random orbital abrading machine having a housing, a drive shaft driven by a housing mounted motor for rotation about a first axis of rotation, an assembly for connecting a work surface abrading pad or the like to the drive shaft, wherein the pad is adapted to undergo free rotational movement about a second axis disposed parallel to the first axis of rotation, as such pad is caused to orbit about such first axis of rotation, characterized in that the assembly is designed for dampening vibration due to a drag force acting on the pad when engaged with the work surface under predetermined working conditions.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: March 27, 2001
    Assignee: Dynabrade, Inc.
    Inventor: Frank D. Lehman
  • Patent number: 6190245
    Abstract: A hand operated orbital sander having a hand grip portion provided with a fluid supply inlet connected to a source of pressurized fluid and a fluid discharge; a base portion for mounting a sanding pad and having a chamber, a fluid inlet for directing fluid into the chamber and a fluid outlet for discharging fluid from the chamber; a resiliently deformable sleeve portion for connecting the base portion to depend from the hand grip portion and defining a conduit for placing the fluid outlet in flow communication with the fluid discharge; a fluid operated rotor rotatably supported by the base portion within the chamber and mounting an eccentric weight for imparting orbital movement to the base portion; and a flexible conduit for connecting the supply inlet to the fluid inlet to apply pressurized fluid to the rotor to effect rotation thereof.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: February 20, 2001
    Assignee: Dynabrade, Inc
    Inventors: Richard A. Heidelberger, David E. Baran
  • Patent number: D610428
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: February 23, 2010
    Assignee: Dynabrade, Inc.
    Inventors: Mark Lampka, Matthew Giles
  • Patent number: D667285
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: September 18, 2012
    Assignee: Dynabrade, Inc.
    Inventors: Walter N. Welsch, Jason T. Bolis