Patents by Inventor Robert S. Gehret

Robert S. Gehret 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: 20100071923
    Abstract: A power tool having a rotary impact mechanism and a mode change mechanism. The impact mechanism is driven by an output member of a transmission and includes a hammer and an anvil. The mode change mechanism includes a mode collar that is movable between a first position, in which the mode collar directly couples the hammer to the transmission output member to inhibit movement of the hammer relative to the spindle, and a second position in which the mode collar does not inhibit movement of the hammer relative to the spindle. A power tool having an impact mechanism with an external adjusting member that can be moved to vary a trip torque of the impact mechanism is also provided.
    Type: Application
    Filed: September 24, 2009
    Publication date: March 25, 2010
    Inventors: Scott M. Rudolph, Daniel Puzio, Sankarshan N. Murthy, Aris Cleanthous, Joseph Stauffer, Robert S. Gehret, James D. Hays, Qiang J. Zhang
  • Patent number: 7677844
    Abstract: A power driver may include a motor that rotates upon receiving an input current. A tool chuck may have chuck jaws to hold an accessory. The tool chuck may be coupled to the motor. A power take off mechanism may be connected between the motor and the tool chuck. The power take off mechanism may be adjustable into a CHUCK MODE to one of open and close the chuck jaws while the motor rotates. An electronic clutch may interrupt the input current to the motor if the power take off mechanism is in the CHUCK MODE and if the input current exceeds a trip value.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: March 16, 2010
    Assignee: Black & Decker Inc.
    Inventors: Craig A. Schell, Robert S. Gehret, Daniel Puzio
  • Publication number: 20100043614
    Abstract: A miter saw is provided. The miter saw includes a table for supporting a workpiece; a fence located on the table; and a beveling arm for supporting a saw blade, the fence operatively connected to the arm to move the fence when the blade is beveled so that the blade does not contact the fence when the blade is moved toward the table. A method of locating a workpiece near a saw blade is provided. The method may include moving an adjustable section of fence near a path the saw blade will travel by beveling the saw blade; and moving a workpiece to contact the fence near the saw blade path.
    Type: Application
    Filed: August 14, 2009
    Publication date: February 25, 2010
    Inventors: Robert S. Gehret, Craig A. Schell, Daryl S. Meredith, Torrey R. Lambert, Adan Ayala
  • Patent number: 7658574
    Abstract: A automated chuck is provided with at least three user selectable operating modes, thereby enabling different functions to be performed during tightening and loosening of the chuck. In one exemplary implementation, the different user selectable operating modes of the chuck may be used to actuate a motor direction switch of the drill.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: February 9, 2010
    Assignee: Black & Decker Inc.
    Inventors: Robert S. Gehret, Daniel Puzio
  • Patent number: 7644930
    Abstract: A tool chuck may include an input shaft. A chuck actuating shaft may be mounted for rotation on the input shaft. A chuck actuating screw may be screw coupled to the chuck actuating shaft. A spring may be interposed between the chuck actuating shaft and the input shaft. Upon tightening the tool chuck, the spring may be compressed to provide force against the chuck actuating screw.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: January 12, 2010
    Assignee: Black & Decker Inc.
    Inventors: Daniel Puzio, Robert S. Gehret, Warren A. Ceroll, Craig A. Schell, Richard J. Heavel
  • Publication number: 20090293691
    Abstract: A power tool including a bevel mechanism for selectively determining a bevel cutting angle of the power tool, a bevel drive motor operably connected to the bevel mechanism that drives the bevel mechanism, and a switch connected to tile bevel drive motor that activates/deactivates the motor. The bevel drive motor may drive the bevel mechanism to lock/unlock the saw from a current position to allow a user to rotate a saw about a bevel axis. The switch may also activate release of a detent to allow the bevel angle to be set at a desired position. The switch may be mounted, for example, on an operating handle of the saw in a position easily accessible by the user. The output of the switch may be connected to a controller used to control operation of the motor.
    Type: Application
    Filed: May 19, 2009
    Publication date: December 3, 2009
    Inventor: Robert S. Gehret
  • Publication number: 20090260495
    Abstract: A workpiece adjusting mechanism for a miter saw is provided. The workpiece adjusting mechanism may include: a table for supporting a workpiece to be cut by the miter saw; an engager for engaging the workpiece, the engager configured to move the workpiece with respect to the table; and an actuator configured to control the engager to move the workpiece with respect to the table.
    Type: Application
    Filed: April 22, 2009
    Publication date: October 22, 2009
    Applicant: Black & Decker Inc.
    Inventors: Robert J. Opsitos, JR., Warren A. Ceroll, James P. Bascom, Rick J. Heavel, Craig A. Schell, Robert S. Gehret
  • Patent number: 7588398
    Abstract: A power driver may include a housing, a tool chuck and a power take off mechanism. The tool chuck may have an input shaft mounted for rotation on the housing. The input shaft may support chuck jaws. A chuck actuating shaft may be mounted for rotation on the input shaft. The power take off mechanism may be connected to the tool chuck. The power take off mechanism may be adjustable into a DRILL DRIVE MODE to rotationally drive the input shaft and the chuck actuating shaft together as a unit, and a CHUCK MODE to rotationally drive the chuck actuating shaft relative to the input shaft. The power take off mechanism may be internal of the housing. The power take off mechanism in the CHUCK MODE may rotationally fix the input shaft to the housing.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: September 15, 2009
    Assignee: Black & Decker Inc.
    Inventors: Daniel Puzio, Craig A. Schell, Robert S. Gehret, Richard J. Heavel, Warren A. Ceroll, Stephen A. Debelius
  • Patent number: 7588095
    Abstract: Provided are various embodiments of structures that may utilized in a power driver, particularly in a power driver having an optional reciprocating “hammer” action, that may be utilized for retaining an outer bearing during driver assembly and during subsequent operation of the power driver. In particular, the disclosed structures provide one or more surfaces, particularly inner peripheral surfaces, that limit the outward axial movement of the bearing. These structures may include combinations of surfaces defined by retaining members including, for example, one or more flanges, clips and threaded members, an input shaft, biasing mechanisms, typically a spring or other resilient structure, and chuck shield assemblies for positioning the outer bearing within the power driver.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: September 15, 2009
    Assignee: Black & Decker Inc.
    Inventors: Daniel Puzio, Robert S. Gehret, Warren A. Ceroll, Craig Alan Schell
  • Patent number: 7546790
    Abstract: A table saw including a base, a main table supported by the base, first and second rails attached to the table, a sliding table fixedly attached to the rails and sliding along the longitudinal axis of the rails and a cross-cut table slidably movable in a direction perpendicular to the longitudinal axis of the rails. The cross-cut table may be adjusted to ensure movement parallel to a blade protruding from the main table. An improved miter gauge assembly is also disclosed. An improved fence assembly is further disclosed herein. In addition, a table saw having an improved panel and leg construction is disclosed herein.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: June 16, 2009
    Assignee: Black & Decker Inc.
    Inventors: James Parks, Robert S. Gehret, Scott Livingston, Michael L. O'Banion, Robert P Welsh, William Scott Taylor, Todd L. Huston, Edwin G. Zehr, Scott Stropkay, David Louis Weissburg, Mark Allen Nichols, William R. Stumpf, Lewis Hampton Rohr, Henry Louis Tew, Thomas S. Paladino, Paul Eichelberger, David Edmund Duncanson, Jerry Wayne Holleman, Adan Ayala
  • Publication number: 20090145520
    Abstract: A power tool for drilling a hole in a workpiece made of wood or a wood material. The power tool generally includes a tool housing defining a handle and a motor contained within the tool housing that includes an output shaft that spins about a motor axis. A gear housing is connected to the tool housing. An output spindle is supported for rotation about a spindle axis in the gear housing. The spindle axis is disposed about ninety degrees from the motor axis. A gear portion on the output shaft is engaged to a gear portion on the output spindle. The motor and the gear portions are configured to rotate the output spindle at a speed in range from about five thousand revolutions per minute to about twenty-five thousand revolutions per minute. A cutting member is connected to the output spindle. The cutting member includes fluted cutting blades. A carriage assembly includes a base member and a head member connected by a first post having a first compliant member and a second post.
    Type: Application
    Filed: October 5, 2007
    Publication date: June 11, 2009
    Applicant: BLACK & DECKER Inc.
    Inventors: Robert J. Opsitos, JR., Christopher R. Held, Robert S. Gehret, Richard J. Heavel, Daniel Puzio, Craig A. Schell, Larry T. Albert, Thomas J. Bodine, Daniel L. Gregory
  • Publication number: 20090120254
    Abstract: The table saw disclosed herein includes a table, a saw assembly pivotally attached to the table, the saw assembly comprising an arbor movable relative to the table, a bevel shaft operatively connected to the saw assembly for pivoting the saw assembly, and a height shaft operatively connected to the saw assembly for moving the arbor relative to the table, wherein distance between the height shaft and the table is larger than distance between the bevel shaft and the table.
    Type: Application
    Filed: January 23, 2009
    Publication date: May 14, 2009
    Inventors: James R. Parks, Robert S. Gehret, William R. Stumpf, Frederick R. Bean, Daniel Puzio, Michael L. O'Banion, Lewis H. Rohr, Robert P. Welsh, Carl F. Merhar, III, Scott M. Livingston, David E. Duncanson, Adan Ayala
  • Publication number: 20090115145
    Abstract: A automated chuck is provided with at least three user selectable operating modes, thereby enabling different functions to be performed during tightening and loosening of the chuck. In one exemplary implementation, the different user selectable operating modes of the chuck may be used to actuate a motor direction switch of the drill.
    Type: Application
    Filed: January 12, 2009
    Publication date: May 7, 2009
    Applicant: Black & Decker Inc.
    Inventors: Robert S. Gehret, Daniel Puzio
  • Publication number: 20090071017
    Abstract: A circular saw includes a housing assembly and a drive motor assembly coupled to the housing assembly. An output member is driven by the drive motor assembly. A shoe is adjustably mounted to the housing assembly. A circular saw blade has a diameter of about 7.3 inches. The shoe can be adjusted to provide a depth of cut that is greater than or equal to about 3.0 inches.
    Type: Application
    Filed: September 10, 2008
    Publication date: March 19, 2009
    Inventor: Robert S. Gehret
  • Patent number: 7491020
    Abstract: A automated chuck is provided with at least three user selectable operating modes, thereby enabling different functions to be performed during tightening and loosening of the chuck. In one exemplary implementation, the different user selectable operating modes of the chuck may be used to actuate a motor direction switch of the drill.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: February 17, 2009
    Assignee: Black & Decker Inc.
    Inventors: Robert S. Gehret, Daniel Puzio
  • Patent number: 7395745
    Abstract: A power tool with a base assembly, and a table supported by the base assembly, where the table has a workpiece supporting surface. A saw assembly is pivotably supported by the table via a trunnion assembly. The table includes a post having a first curved surface having a first radius. The trunnion has a first surface contacting the first curved surface. The trunnion is movable along the first curved surface. The first radius is larger than the distance between the first surface and the workpiece supporting surface.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: July 8, 2008
    Assignee: Black & Decker Inc.
    Inventors: Robert S. Gehret, Torrey R. Lambert
  • Publication number: 20080053285
    Abstract: A miter saw has a base assembly, a table assembly rotatably disposed on the base assembly, a support housing connected to the table assembly, and a saw assembly pivotably attached to the support housing. The saw assembly is pivotable downwardly for cutting a workpiece disposed on the table assembly. The saw has a miter lock assembly including a shoe assembly connected to the table housing and movable between a first position not contacting the base assembly and a second position contacting the base assembly. The shoe assembly has a movable shoe for adjusting the angular position of the table assembly relative to the base assembly.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 6, 2008
    Inventor: Robert S. Gehret
  • Patent number: 7328904
    Abstract: A chuck for a drill/driver. The chuck can include an input shaft having a cavity, a chuck actuating shaft and a chuck actuating screw. The chuck actuating shaft can be received in the cavity and can be rotatable about a chuck axis. The chuck actuating shaft can have a threaded aperture. The chuck actuating screw can have a threaded portion that is threadably engaged to the threaded aperture. The jaws can be received in the cavity and can engage the input shaft. The jaws can be coupled to the chuck actuating screw such that rotation of the chuck actuating shaft relative to the chuck actuating screw translates the jaws so that the jaws converge toward or diverge from the chuck axis. The chuck further includes a device coupled to at least one of the chuck actuating screw, the chuck actuating shaft and the input shaft for limiting elastic elongation of the chuck actuating screw in an axial direction when the jaws are positioned in a fully opened condition.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: February 12, 2008
    Assignee: Black & Decker Inc.
    Inventors: Craig A Schell, Daniel Puzio, Robert S Gehret, Richard J Heavel, Warren A Ceroll, Stephen A Debelius
  • Patent number: 7314097
    Abstract: A hammer drill/driver with a motor having an output member, a planetary transmission, a clutch assembly and a clutch bypass. The planetary transmission, which includes a ring gear, receives rotary power from the output member and produces a rotary output. The clutch assembly has a clutch profile, which is coupled to the ring gear, and a first pin assembly having a first follower, a first pin member and a first spring that biases the first follower into contact with the clutch profile. The clutch bypass has a bypass profile, which is coupled to the ring gear, and second pin assembly having a second follower, a second pin member, a second spring, which biases the second follower away from the bypass profile, and a third spring, which biases the second follower away from the second pin member. A method for operation of a hammer drill/driver is also provided.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: January 1, 2008
    Assignee: Black & Decker Inc.
    Inventors: Cheryl Jenner, Stephen A. Debelius, Craig A. Schell, Daniel Puzio, Warren A. Ceroll, Robert S. Gehret, James B. Watson, Charles E. Yocum, Christopher M. Brock, Michael D. Zalobsky
  • Patent number: D574024
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: July 29, 2008
    Assignee: Black & Decker Inc.
    Inventors: Warren A. Ceroll, Robert S. Gehret, Daniel Puzio, Frederick R. Bean, Michael L. O'Banion, David A. Porter, Daniel A. Ferrara, Jr.