Patents Assigned to Power Tool Holders, Inc.
  • Patent number: 6367815
    Abstract: A chuck for use with a manual or powered driver including a generally cylindrical body having a nose section and a tail section. The tail section defines an axial bore formed therein to mate with the drive shaft of the driver and the nose section defines an axial bore formed therein and a plurality of angularly disposed passageways formed therethrough and intersecting the axial bore. A plurality of jaws are slidably positioned in each passageway and each jaw defines a jaw face formed on one side and threads formed on the opposite side. A nut is disposed about the body for rotational movement with respect to the body and is in driving engagement with the jaw threads. A generally cylindrical front sleeve overlays the nose section of the body. A generally cylindrical nut retainer is disposed about the body and includes a frusto-conical portion.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: April 9, 2002
    Assignee: Power Tool Holders, Inc.
    Inventors: Christopher B. Barton, Stephen W. Steadings
  • Patent number: 6364319
    Abstract: A chuck includes an integrally molded body member having a nose section and tail section. A plurality of jaws are slidably positioned in angularly disposed passageways in the nose section. A nut is rotatably mounted on the body and is in engagement with threads on the jaws. A reinforcing member is co-molded with the nose section about at least a portion of the outer circumference of the nose section. The tail section extends radially outward to form a gripping surface and axially forward to form a thrust bearing surface in operative engagement with the nut so that the nut transfers rearward axial force to the thrust bearing surface.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: April 2, 2002
    Assignee: Power Tool Holders, Inc.
    Inventors: Kevin C. Miles, Ian Middleton
  • Patent number: 6279918
    Abstract: Chuck for use with a manual or powered driver including a nut rotatably mounted on the chuck body and in engagement with the threads of the chuck jaws. The chuck includes a self-contained anti-friction bearing assembly disposed between the nut and a thrust ring, as well as a generally cylindrical front sleeve member in driving engagement with the nut and overlying a nose section of the body of the chuck so that when the front sleeve member is rotated with respect to the body member, the jaws will be moved thereby. The chuck also includes a rust resistant decorative nosepiece as well as an improved nut retainer member.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: August 28, 2001
    Assignee: Power Tool Holders, Inc.
    Inventors: Christopher B. Barton, Stephen W. Steadings
  • Patent number: 6173972
    Abstract: A driver includes a housing, a driveshaft rotatable with respect to the housing and a chuck. The chuck includes a generally cylindrical body and a nut rotatably mounted relative to the body so that relative rotation between the nut and the body moves the chuck toward an open or closed position. A first sleeve is rotationally fixed to the nut and is axially movable and rotatable with respect to the body. A collar is disposed operatively between the first sleeve and the body. The collar is rotationally fixed to and axially movable with respect to the body and is axially fixed to and rotatable with respect to the first sleeve so that the collar moves axially with the first sleeve and with respect to the body between a first axial position and a second axial position. The collar is rotatable with respect to the housing in the first position and is rotationally fixed to the housing in the second position.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: January 16, 2001
    Assignee: Power Tool Holders, Inc.
    Inventors: Richard E. Temple-Wilson, Ian Middleton
  • Patent number: 6102411
    Abstract: A chuck includes a generally cylindrical body member having a forward section and a rearward section. The rearward section is configured to mate with a manual or powered driver. A plurality of angularly disposed passageways is formed in the forward section of the body and intersect an axial bore formed therein. The body defines a ledge portion about its outer circumference and a front face transverse to the longitudinal body axis. One of a plurality of jaws is slidably positioned in each passageway. A nut is rotatably mounted to the body rearward of the ledge portion so as to engage the jaws. A generally cylindrical sleeve engages the nut and includes a flexible protrusion extending axially rearward from an inner circumferential surface of the sleeve proximate the sleeve forward end. The protrusion has a tab portion disposed rearward of the ledge portion and projecting radially inward of the outer circumference of the ledge portion to prevent forward axial movement of the sleeve with respect to the body.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: August 15, 2000
    Assignee: Power Tool Holders, Inc.
    Inventor: Larry Wilson
  • Patent number: 6079918
    Abstract: A rotary power tool has a remotely actuated chuck device. A hydraulic actuating system is incorporated in the power tool and is configured to move the chuck device between the gripping and release positions upon hydraulic fluid being supplied to at least one hydraulically driven actuator mounted relative to the tool casing and engaged with the chuck device to move the chuck between gripping and release positions.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: June 27, 2000
    Assignee: Power Tool Holders, Inc.
    Inventors: Keith Buddendeck, Jeremy Grayson, Ronald W. Miksa
  • Patent number: 6079917
    Abstract: A rotary power tool is provided having a remotely actuated chuck device. The chuck includes an outer sleeve member that is axially movable relative to the drive spindle between a gripping and release position. A sleeve actuating device is provided having a first member engaged with the outer sleeve member and which extends generally radially outward from the drive spindle or chuck. The first member is movable in a direction so as to move the outer sleeve member between the gripping position and release position. The sleeve actuating device includes an actuator member configured with the first member to move the first member upon an external force being applied thereto. The actuator member is generally perpendicular to the axis of the drive spindle and may be limited in length to be confined in the perimeter of the casing. In this manner, an operator can move the chuck device between the gripping release positions at a location remote from the chuck device and drive spindle.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: June 27, 2000
    Assignee: Power Tool Holders, Inc.
    Inventors: Ronald W. Miksa, Jeremy Grayson, Keith Buddendeck
  • Patent number: 6079916
    Abstract: A rotary power tool incorporates a remotely actuated chuck device. An engagement surface, such as a threaded or helical surface, is defined on an outer circumference of the chuck device over an axial length thereof. An actuator member is disposed concentric and rotatable relative to the engagement surface. In an actuation mode, the actuation member is brought into engagement with the engagement surface so that rotation of the actuator member drives the chuck device axially between gripping and release positions.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: June 27, 2000
    Assignee: Power Tool Holders, Inc.
    Inventors: Jeremy Grayson, Keith Buddendeck, Ronald W. Miksa
  • Patent number: 6045141
    Abstract: A molded chuck for a hand or powered driver including oblique jaws movable by rotation of a threaded nut engaged therewith to selectively clamp and release a tool.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: April 4, 2000
    Assignee: Power Tool Holders, Inc.
    Inventors: Kevin C. Miles, Ian Middleton
  • Patent number: 6010135
    Abstract: A chuck for use with a manual or powered driver having a rotatable drive shaft is provided. A generally cylindrical body member has a nose section and a tail section. A plurality of jaws are disposed within the body longitudinally with respect to a nose section axial bore. A self-contained anti-friction bearing assembly is in communication with the body. The bearing assembly has an inner race, an outer race and bearing elements cooperating together. A nut is integrally attached to the bearing assembly and in operative communication with the jaws. A generally cylindrical front sleeve member is in driving engagement with the nut and overlies the nose section of the body member whereby when the front sleeve member is rotated with respect to the body member, the jaws will be moved radially with respect to the axial bore of the nose section.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: January 4, 2000
    Assignee: Power Tool Holders, Inc.
    Inventors: Kevin C. Miles, Benjamin A. Gaddis
  • Patent number: 5957469
    Abstract: Chuck for use with manual or powered driver having rotatable shaft, the chuck including a body member and jaws slidably positioned in angled passageways formed in the body. The chuck further includes a nut rotatably mounted relative to the body member and in engagement with threads on the jaws. A generally cylindrical sleeve member is disposed in driving engagement with the nut and overlying the nose section of the body so that when the sleeve member is rotated with respect to the body, the jaws will be moved thereby to grip the shaft of a tool. A spring member is biased to engage the sleeve member and is disposed selectively rotatably with respect to the nut. When the nut is tightened, the spring member becomes locked to the body member, which has an engagement portion that facilitates this locking relationship. When so locked, the nut is restrained from loosening during vibration of the chuck in use for its intended purpose.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: September 28, 1999
    Assignee: Power Tool Holders, Inc.
    Inventors: Kevin C. Miles, Benjamin A. Gaddis
  • Patent number: 5934689
    Abstract: A chuck for use with a manual or powered driver having a drive shaft is provided. A generally cylindrical body member has a tail section and a nose section extending axially forward of a nut. The tail section is adapted to mate with the drive shaft of the driver to rotate therewith, and the nose section has an axial bore formed therein. A plurality of angularly disposed passageways are formed through the nose section and intersect the nose section axial bore. A plurality of jaws are positioned in the angularly disposed passageways, each jaw having a jaw face formed on one side thereof and threads formed on the opposite side thereof. The nut is rotatably mounted relative to the body member and has threads engaging the threads on the jaws. A generally cylindrical sleeve member is in operative communication with the nut so that the sleeve member rotationally drives the nut and so that force in the axial direction toward the nose section is transferred from the nut to the sleeve member.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: August 10, 1999
    Assignee: Power Tool Holders, Inc.
    Inventor: Kenneth M. Montjoy
  • Patent number: 5913524
    Abstract: A chuck for use with a manual or powered driver having a drive shaft is provided. A generally cylindrical body has a forward section and a rearward section, the rearward section adapted to mate with the drive shaft of the driver. A gripping mechanism is actuatable to a closed position in which the gripping mechanism axially and rotationally retains a tool with respect to the body and to an open position in which the gripping mechanism does not so retain a tool. An annular nut is disposed about the body and has a threaded portion in threaded engagement with the gripping mechanism so that rotation of the nut about the body in a closing direction actuates the gripping mechanism to the closed position and rotation of the nut in an opening direction, opposite the closing direction, actuates the gripping mechanism to an open position.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: June 22, 1999
    Assignee: Power Tool Holders, Inc.
    Inventor: Christopher B. Barton
  • Patent number: 5816584
    Abstract: A chuck for use with a manual or powered driver having a rotatable drive shaft is provided. A plurality of jaws are slidably positioned in a body member. Each jaw has a jaw face formed on one side and threads formed on the opposite side. Each jaw face includes a first ridge substantially parallel to the chuck axis. The first ridge is offset from, and substantially parallel to, a plane including the jaw axis and the chuck axis. A second ridge is substantially parallel to the first ridge but offset from the plane opposite the first ridge. A third ridge is disposed between the first and second ridges and has a peak on the opposite side from the chuck axis of a plane including the peaks of the first and second ridges.
    Type: Grant
    Filed: January 2, 1997
    Date of Patent: October 6, 1998
    Assignee: Power Tool Holders, Inc.
    Inventors: Kevin C. Miles, Benjamin A. Gaddis
  • Patent number: 5816583
    Abstract: A chuck for use with a manual or powered driver having a rotatable drive shaft is provided. The chuck comprises a generally cylindrical body member. The body member has a forward section and a rearward section. The rearward section has an axial bore formed therein to mate with the drive shaft of the driver. A generally cylindrical sleeve is received over the forward section of the body. A primary retaining mechanism is in engagement with the sleeve and the body member to operatively prevent forward axial movement of the sleeve with respect to the body. A secondary retaining mechanism is attached to the sleeve so that if the primary retaining mechanism fails to prevent forward axial movement of the sleeve with respect to the body, the secondary retaining mechanism is brought to engagement with the body to prevent forward axial movement of the sleeve with respect to the body following the engagement.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: October 6, 1998
    Assignee: Power Tool Holders, Inc.
    Inventor: Ian Middleton
  • Patent number: 5641168
    Abstract: The machine tool collet has a plurality of gripping jaws held in a longitudinally and angularly spaced relation about a longitudinal centerline axis through the collet. The gripping jaws have an inner face parallel to the centerline axis and the plurality of jaws define an inner diameter opening through the collet for receiving a tool shank. Resilient material is disposed between the gripping jaws for holding the plurality of jaws in the desired spaced relation. The radially inward directed stop is defined within the opening of the collet. The stop is disposed so as to contact the rear face of a tool shank inserted into the collet thereby preventing rearward axial movement of the tool shank within the collet.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: June 24, 1997
    Assignee: Power Tool Holders, Inc.
    Inventor: Roger J. Kanaan
  • Patent number: 5636851
    Abstract: A tapping collet is actuated by engagement with a mating surface of a collet holder for holding a tap having a round shank portion and a square shank portion. The collet has a plurality of independent gripping jaws circumferentially disposed at essentially 90 degree intervals about a centerline axis through the collet. The gripping jaws have an inner face parallel to the centerline axis and an outer face which defines an outer surface for engaging a collet holder mating surface. Resilient material is disposed between the gripping jaws for holding the jaws in the desired spaced relation. The gripping jaws comprise a step portion which extends radially inward and defines a second inner diameter opening to engage the flat sides of the square shank portion of a tap inserted into the collet. The continuous outer diameter seal is disposed circumferentially about the outer surface of the collet and a continuous inner diameter seal is disposed circumferentially within a first inner diameter opening of the collet.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: June 10, 1997
    Assignee: Power Tool Holders, Inc.
    Inventor: Roger J. Kanaan
  • Patent number: 5577743
    Abstract: A quick release chuck device includes a body member having an internal bore for receipt of a tool shank. The body member is matable to a drive spindle. A plurality of circumferentially spaced passages are defined in the body member, with each passage defining an opening into the internal bore. Bearing members are disposed in the passages and are radially movable within the passages so that at least a portion of each bearing member extends into the internal bore. An outer sleeve is disposed about the body member and the bearing members. The sleeve is rotatable relative to the body member between a gripping position and a released position. The outer sleeve has an inner diameter surface with ramping engaging surfaces defined therein which are spaced so as to engage the bearing members and force the bearing members radially inward to positively grip a tool shank disposed in the internal bore when the outer sleeve is rotated to its gripping position.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: November 26, 1996
    Assignee: Power Tool Holders, Inc.
    Inventors: Roger J. Kanaan, Edward H. Martin
  • Patent number: 5573255
    Abstract: A quick release chuck device for releasably holding a jaw blade includes a body member having an internal longitudinal bore defined therein. The longitudinal bore has a substantially rectangular cross-section shape for receipt of conventionally sized saw blades. At least one radial bore is defined in the body member and is in communication with the longitudinal bore through one of its short sides. An engaging device is disposed in the radial bore and is movable radially within the radially bore so that at least a portion of the engaging device extends into the longitudinal bore in a locking mode of the chuck device to hold a saw blade within the device through contact with a recess defined in the edge of the blade. A spring-biased outer sleeve is disposed about at least a portion of the body member. The outer sleeve is movable longitudinally between a released position and a locking position.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: November 12, 1996
    Assignee: Power Tool Holders, Inc.
    Inventor: Glenn L. Salpaka
  • Patent number: D427216
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: June 27, 2000
    Assignee: Power Tool Holders, Inc.
    Inventors: Kevin C. Miles, Benjamin A. Gaddis