Patents by Inventor Craig A. Oktavec

Craig A. Oktavec 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: 20200016734
    Abstract: A power tool is provided including a tool housing including a motor housing and a handle portion; a battery receptacle disposed at an end of the handle portion opposite the motor housing, the battery receptacle being configured to receive a battery pack having a maximum voltage of at least 60 V; and a brushless DC (BLDC) motor including an electronically-commutated stator assembly and a rotor assembly magnetically interacting with the rotor assembly to rotate with respect to the stator assembly, the stator assembly comprising a stator lamination stack sized to be received within the motor housing having a circumference of approximately 140 to approximately 190 mm. The motor produces a maximum power output of at least 1600 watts for driving an output shaft at a maximum torque of at least 30 inch-pounds and a maximum speed of at least 8000 rotations-per-minute.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 16, 2020
    Inventors: Joseph P. Kelleher, William F. Gallagher, Craig A. Oktavec, David J. Smith, Jarrett A. Dunston
  • Patent number: 10404136
    Abstract: A handheld grinder includes an elongated housing, an electric motor, an output shaft, a wall, a planar circuit board, and a motor drive circuit. The elongated housing defines a cavity therein and includes a motor case disposed at a front end and a handle portion to a rear end. The electric motor has a drive shaft that is mounted within the motor case. The output shaft is drivably coupled to the drive shaft of the electric motor. The wall separates the cavity between the motor case and the handle portion of the housing. The planar circuit board disposed in the handle portion of the housing. The motor drive circuit is accommodated entirely within the handle portion of the housing on the planar circuit board.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: September 3, 2019
    Assignee: Black & Decker Inc.
    Inventors: Craig A. Oktavec, David J. Smith, Colin C. Crosby, Matthew J. Velderman, Zollie W. Privett, Jr., Pradeep Pant, Kyle J. Christophersen, Daniel F. Nace, James H. Stiles, III, Floyd E. Moreland, IV
  • Patent number: 10328567
    Abstract: A power tool motor is provided including a stator assembly and a rotor assembly rotatably disposed within the stator assembly. The stator assembly includes: a generally-cylindrical lamination stack having a stator ring and stator teeth extending radially inwardly towards a center bore arranged to receive the rotor assembly therein; an end insulator disposed at an and of the lamination stack and having an outer ring and teeth portions extending radially inwardly from the outer ring towards a center of the end insulator; and stator windings wound around the stator teeth and the teeth portion of the end insulator. A generally cylindrical seal member is disposed to interface with an end of the stator, which includes a mating surface having indents configured to mate with ends of the stator windings or ends of the teeth portion of the end insulator to substantially seal respective gaps therebetween from entry of workpiece particulate.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: June 25, 2019
    Assignee: Black & Decker Inc.
    Inventors: Craig A. Oktavec, David J. Smith, Jarrett A. Dunston, Andrew M. Palich, Michael R. Marjomaa, Kevin L. Pulley
  • Publication number: 20190152014
    Abstract: A power tool is provided including a motor case and a handle portion. An electric motor having a drive shaft is mounted within the motor case. A circuit board is disposed in the handle portion to accommodate a motor drive circuit. The motor drive circuit includes a rectifier configured to receive an alternating current from an alternating current (AC) power source and convert it to a direct current supplied to a DC power bus, and a bridge circuit having motor switches connected between the rectifier and the electric motor. A bus capacitor is mounted on the circuit board and coupled across the DC power bus. An auxiliary capacitor having higher capacitance than the bus capacitor is switchably coupled across the DC power bus. The handle portion includes a support member protruding radially outwardly to accommodate the auxiliary capacitor.
    Type: Application
    Filed: January 24, 2019
    Publication date: May 23, 2019
    Inventors: Zollie W. PRIVETT, Craig A. OKTAVEC, David J. SMITH, Matthew J. VELDERMAN, Colin C. CROSBY, Pradeep PANT, Kyle J. CHRISTOPHERSEN, Daniel F. NACE, James H. STILES, III, Floyd E. MORELAND, IV
  • Patent number: 10272558
    Abstract: A power tool is provided including an elongated housing. The housing includes a motor case disposed at a front end thereof and a handle portion extending along a longitudinal axis of the housing from the motor case to a rear end of the housing. The handle portion includes two elongated walls extending from the motor case along the longitudinal axis of the housing to form a planar opening within the handle portion. A partition wall is arranged along an axis substantially perpendicular to the longitudinal axis of the housing, separating the handle portion from the motor case. An electric motor having a drive shaft is mounted within the motor case, and a module casing supporting a planar circuit board is received within the planar opening and supported by the elongated walls within the handle portion of the housing axially along the longitudinal axis of the housing.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: April 30, 2019
    Assignee: Black & Decker Inc.
    Inventors: Kyle J. Christophersen, Daniel F. Nace, James H. Stiles, III, Floyd E. Moreland, IV, Craig A. Oktavec, David J. Smith, Zollie W. Privett, Jr., Matthew J. Velderman, Colin M. Crosby, Pradeep M. Pant
  • Patent number: 10226849
    Abstract: A handheld grinder includes an elongated housing, an electric motor, an output shaft, a wall, a planar circuit board, and a motor drive circuit. The elongated housing defines a cavity therein and includes a motor case disposed at a front end and a handle portion to a rear end. The electric motor has a drive shaft that is mounted within the motor case. The output shaft is drivably coupled to the drive shaft of the electric motor. The wall separates the cavity between the motor case and the handle portion of the housing. The planar circuit board is disposed in the handle portion of the housing. The motor drive circuit is accommodated entirely within the handle portion of the housing on the planar circuit board.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: March 12, 2019
    Assignee: BLACK & DECKER INC.
    Inventors: Zollie W. Privett, Jr., Craig A. Oktavec, David J. Smith, Matthew J. Velderman, Colin C. Crosby, Pradeep M. Pant, Kyle Christophersen, Daniel F. Nace, James H. Stiles, III, Floyd E. Moreland, IV
  • Publication number: 20170274520
    Abstract: A power tool is provided including an elongated housing. The housing includes a motor case disposed at a front end thereof and a handle portion extending along a longitudinal axis of the housing from the motor case to a rear end of the housing. The handle portion includes two elongated walls extending from motor along the longitudinal axis of the housing to form a planar opening within the handle portion. A partition wall is arranged along an axis substantially perpendicular to the longitudinal axis of the housing, separating the handle portion from the motor case. An electric motor having a drive shaft is mounted within the motor case, and a module casing supporting a planar circuit board is received within the planar opening and supported by the elongated walls within the handle portion of the housing axially along the longitudinal axis of the housing.
    Type: Application
    Filed: June 14, 2017
    Publication date: September 28, 2017
    Inventors: Kyle J. Christophersen, Daniel F. Nace, James H. Stiles, III, Floyd E. Moreland, IV, Craig A. Oktavec, David J. Smith, Zollie W. Privett, JR., Matthew J. Velderman, Colin M. Crosby, Pradeep M. Pant
  • Publication number: 20170106490
    Abstract: A handheld grinder includes an elongated housing, an electric motor, an output shaft, a wall, a planar circuit board, and a motor drive circuit. The elongated housing defines a cavity therein and includes a motor case disposed at a front end and a handle portion to a rear end. The electric motor has a drive shaft that is mounted within the motor case. The output shaft is drivably coupled to the drive shaft of the electric motor. The wall separates the cavity between the motor case and the handle portion of the housing. The planar circuit board disposed in the handle portion of the housing. The motor drive circuit is accommodated entirely within the handle portion of the housing on the planar circuit board.
    Type: Application
    Filed: September 12, 2016
    Publication date: April 20, 2017
    Inventors: Zollie W. PRIVETT, JR., Craig A. OKTAVEC, David J. SMITH, Mathew J. VELDERMAN, Colin C. CROSBY, Pradeep PANT, Kyle J. CHRISTOPHERSEN, Daniel F. NACE, James H. STILES, III, Floyd E. MORELAND, IV
  • Publication number: 20170110946
    Abstract: A power tool motor is provided including a stator assembly and a rotor assembly rotatably disposed within the stator assembly. The stator assembly includes: a generally-cylindrical lamination stack having a stator ring and stator teeth extending radially inwardly towards a center bore arranged to receive the rotor assembly therein; an end insulator disposed at an and of the lamination stack and having an outer ring and teeth portions extending radially inwardly from the outer ring towards a center of the end insulator; and stator windings wound around the stator teeth and the teeth portion of the end insulator. A generally cylindrical seal member is disposed to interface with an end of the stator, which includes a mating surface having indents configured to mate with ends of the stator windings or ends of the teeth portion of the end insulator to substantially seal respective gaps therebetween from entry of workpiece particulate.
    Type: Application
    Filed: October 13, 2016
    Publication date: April 20, 2017
    Inventors: Craig A. OKTAVEC, David J. SMITH, Jarrett A. Dunston, Andrew M. PALICH, Michael R. MARJOMAA, Kevin L. PULLEY
  • Publication number: 20170110935
    Abstract: A handheld grinder includes an elongated housing, an electric motor, an output shaft, a wall, a planar circuit board, and a motor drive circuit. The elongated housing defines a cavity therein and includes a motor case disposed at a front end and a handle portion to a rear end. The electric motor has a drive shaft that is mounted within the motor case. The output shaft is drivably coupled to the drive shaft of the electric motor. The wall separates the cavity between the motor case and the handle portion of the housing. The planar circuit board disposed in the handle portion of the housing. The motor drive circuit is accommodated entirely within the handle portion of the housing on the planar circuit board.
    Type: Application
    Filed: September 12, 2016
    Publication date: April 20, 2017
    Inventors: Craig A. OKTAVEC, David J. SMITH, Colin C. CROSBY, Matthew J. VELDERMAN, Zollie W. PRIVETT, Jr., Pradeep PANT, Kyle J. CHRISTOPHERSEN, Daniel F. NACE, James H. STILES, III, Floyd E. MORELAND, IV
  • Patent number: 9511428
    Abstract: The miter saw has a base assembly, a rotatable table rotatably disposed on the base assembly, a saw assembly rotatably supported by the table, and a bevel lock assembly for locking the rotational position of the saw assembly relative to the table.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: December 6, 2016
    Assignee: Black & Decker Inc.
    Inventors: Thomas R. Kaye, Jr., Craig A. Oktavec, Daryl S. Meredith, Stephanie L. Vogel, Lee M. Brendel, Brian P. Wattenbach
  • Patent number: 9143015
    Abstract: A power tool is provided including a tool housing in which an electric motor is disposed. The electric motor includes a stator and an armature rotatably received within the stator. The armature has an armature shaft on which a commutator is mounted. The power tool further includes at least one brush assembly disposed around the commutator, the brush assembly including: a brush having two grooves on opposites surfaces therein; a brush holder comprising two support plates arranged defining guiderails that extend into the grooves of the brush to facilitate movement of the brush along a single axis; and a spring contacting the brush that urges the brush radially inwardly along the axis.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 22, 2015
    Assignee: Black & Decker Inc.
    Inventors: Daniel F. Nace, Marco A. Mattucci, Michael R. Marjomaa, Craig A. Oktavec
  • Publication number: 20150183035
    Abstract: The miter saw has a base assembly, a rotatable table rotatably disposed on the base assembly, a saw assembly rotatably supported by the table, and a bevel lock assembly for locking the rotational position of the saw assembly relative to the table.
    Type: Application
    Filed: January 12, 2015
    Publication date: July 2, 2015
    Inventors: Thomas R. Kaye, JR., Craig A. Oktavec, Daryl S. Meredith, Stephanie L. Vogel, Lee M. Brendel, Brian P. Wattenbach
  • Publication number: 20150114196
    Abstract: The miter saw includes a base assembly, a rotatable table rotatably connected to the base assembly and having a plane, a saw assembly including a motor and a blade disposed on an arbor, and a pivot arm pivotally attached to the table and supporting the saw assembly. The motor preferably drives a belt, which drives a first gear. The first gear meshes with an idler gear, which in turn meshes with a gear disposed on the arbor.
    Type: Application
    Filed: May 19, 2014
    Publication date: April 30, 2015
    Inventors: Daryl S. Meredith, Thomas R. Kaye, Jr., Thomas Trevor Bludis, Maria I. Kenyon, William R. Stumpf, Michael L. O'Banion, Craig A. Oktavec, Stuart J. Wright, Mark E. Brunson, Carrie L. Puschmann
  • Patent number: 8960063
    Abstract: The miter saw has a base assembly, a rotatable table rotatably disposed on the base assembly, a saw assembly rotatably supported by the table, and a bevel lock assembly for locking the rotational position of the saw assembly relative to the table.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: February 24, 2015
    Assignee: Black & Decker Inc.
    Inventors: Thomas R. Kaye, Jr., Craig A. Oktavec, Daryl S. Meredith, Stephanie L. Vogel, Lee M. Brendel, Brian P. Wattenbach
  • Publication number: 20150042183
    Abstract: A power tool is provided including a housing and an electric motor disposed in the housing. The motor includes a stator having a lamination stack having separately-formed pole pieces and field coils disposed on the pole pieces, and an armature disposed in the stator. An end ring is disposed at an end of the lamination stack, the end ring including at least two ring pieces mated together around a portion of the field coils extending beyond pole tips of the pole pieces.
    Type: Application
    Filed: August 19, 2013
    Publication date: February 12, 2015
    Applicant: Black & Decker Inc.
    Inventors: Craig A. Oktavec, Robert G. Kusmierski, David J. Smith, Daniel F. Nace
  • Patent number: 8069761
    Abstract: A saw with a base assembly, a table pivotably attached to the base assembly, a housing pivotably attached to the table, at least one rail slidably connected to the housing, and a saw assembly disposed on the at least one rail. The saw assembly includes a motor, and a blade driven by the motor. The saw also includes a dust collector attached to the saw assembly, the dust collector having a tube that extends through the housing.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: December 6, 2011
    Assignee: Black & Decker Inc.
    Inventors: Mark E. Brunson, Frederick R. Bean, Craig A. Oktavec, Daryl S. Meredith, Thomas R. Kaye, Jr., James R. Parks, Lee M. Brendel
  • Publication number: 20100252295
    Abstract: A power tool can include a gear case, a motor having first and second sets of lead wires, a housing assembly, and a field case. The field case may include a front portion configured for engaging the gear case and a rear portion. The housing assembly may include first and second generally symmetrical housing segments configured for engaging the field case and forming a mid-handle grip. The first set of lead wires may be routed through the front portion of the field case directly to a trigger switch assembly. A method for assembling a mid-handle power tool is also provided and may include routing lead wires through a ventilation path between the field case and trigger assembly.
    Type: Application
    Filed: June 16, 2010
    Publication date: October 7, 2010
    Applicant: Black & Decker Inc.
    Inventors: James D. Schroeder, Paul S. White, Craig A. Oktavec, Paul J. Wisniewski, Edward J. Grasso, Paul K. Trautner
  • Patent number: 7770660
    Abstract: A power tool can include a gear case, a motor having first and second sets of lead wires, a housing assembly, and a field case. The field case may include a front portion configured for engaging the gear case and a rear portion. The housing assembly may include first and second generally symmetrical housing segments configured for engaging the field case and forming a mid-handle grip. The first set of lead wires may be routed through the front portion of the field case directly to a trigger switch assembly. A method for assembling a mid-handle power tool is also provided and may include routing lead wires through a ventilation path between the field case and trigger assembly.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: August 10, 2010
    Assignee: Black & Decker Inc.
    Inventors: James D. Schroeder, Paul S. White, Craig A. Oktavec, Paul J. Wisniewski, Edward J. Grasso, Paul K. Trautner
  • Publication number: 20100050842
    Abstract: An improved miter saw comprises a base assembly, a table rotatably attached to the base assembly, a saw assembly pivotably attached to the table, a wear ring non-fixedly attached between the base assembly and the table and wear ring. Other inventions are described herein.
    Type: Application
    Filed: October 15, 2009
    Publication date: March 4, 2010
    Inventors: Frederick R. Bean, Peter Chaikowsky, Robert P. Welsh, Craig A. Oktavec, Mark E. Brunson, James R. Parks, Gregg L. Sheddy, Adan Ayala