Patents by Inventor Joseph G. Stauffer

Joseph G. Stauffer 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).

  • Patent number: 9450472
    Abstract: A power tool includes a brushless DC motor having a stator assembly and a rotor assembly at least a portion of which is arranged pivotably inside the stator assembly. The rotor assembly includes a rotor lamination stack housing a permanent magnets and a rotor fixedly housed inside a center portion of the lamination stack to pivot therewith. A fan may be fixedly attached to the rotor and arranged adjacent the stator assembly. The fan includes a back plate and blades longitudinally projecting from a periphery of the back plate towards the stator assembly, where a middle portion of the back plate is contoured away from an end cap of the motor to accommodate a projecting portion of the end cap. The permanent magnets may extend beyond the longitudinal length of the rotor lamination stack towards a magnet sensor to facilitate sensing of the permanent magnet via the magnet sensor.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: September 20, 2016
    Assignee: Black & Decker, Inc.
    Inventors: Eric E. Hatfield, Joseph G. Stauffer, Earl M. Ortt
  • Patent number: 9415488
    Abstract: A screwdriving tool that includes a driving tool (driver), a sensor, a sensor target and a contact trip assembly that is coupled to the driving tool and has a nose element. The driver has a housing, a motor and an output member that is driven by the motor. One of the nose element and the output member is axially movable and biased by a spring into an extended position. The sensor and sensor target are configured to cooperate to permit the sensor to provide a sensor signal that is indicative of movement of the one of the nose element and the output member. The motor is controllable in a first operational mode and at least one rotational direction based in part on the sensor signal.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: August 16, 2016
    Assignee: BLACK & DECKER INC.
    Inventors: Daniel Puzio, Craig A. Schell, Joseph P. Kelleher, Scott Eshelman, Andrew E. Seman, Jr., Todd A. Hagan, Joseph G. Stauffer, Will Wang, John D. Cox
  • Publication number: 20150014005
    Abstract: A screwdriving tool that includes a driving tool (driver), a sensor, a sensor target and a contact trip assembly that is coupled to the driving tool and has a nose element. The driver has a housing, a motor and an output member that is driven by the motor. One of the nose element and the output member is axially movable and biased by a spring into an extended position. The sensor and sensor target are configured to cooperate to permit the sensor to provide a sensor signal that is indicative of movement of the one of the nose element and the output member. The motor is controllable in a first operational mode and at least one rotational direction based in part on the sensor signal.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventors: Daniel PUZIO, Craig A. SCHELL, Joseph P. KELLEHER, Scott ESHELMAN, Andrew E. SEMAN, JR., Todd A. HAGAN, Joseph G. STAUFFER, Will WANG, John D. COX
  • Patent number: 8875804
    Abstract: A screwdriving tool that includes a driving tool (driver), a sensor, a sensor target and a contact trip assembly that is coupled to the driving tool and has a nose element. The driver has a housing, a motor and an output member that is driven by the motor. One of the nose element and the output member is axially movable and biased by a spring into an extended position. The sensor and sensor target are configured to cooperate to permit the sensor to provide a sensor signal that is indicative of movement of the one of the nose element and the output member. The motor is controllable in a first operational mode and at least one rotational direction based in part on the sensor signal.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: November 4, 2014
    Assignee: Black & Decker Inc.
    Inventors: Daniel Puzio, Craig A. Schell, Joseph P. Kelleher, Scott Eshleman, Andrew E. Seman, Todd A. Hagan, Joseph G. Stauffer, Will Wang, John D. Cox
  • Publication number: 20130270932
    Abstract: A power tool includes a brushless DC motor having a stator assembly and a rotor assembly at least a portion of which is arranged pivotably inside the stator assembly. The rotor assembly includes a rotor lamination stack housing a permanent magnets and a rotor fixedly housed inside a center portion of the lamination stack to pivot therewith. A fan may be fixedly attached to the rotor and arranged adjacent the stator assembly. The fan includes a back plate and blades longitudinally projecting from a periphery of the back plate towards the stator assembly, where a middle portion of the back plate is contoured away from an end cap of the motor to accommodate a projecting portion of the end cap. The permanent magnets may extend beyond the longitudinal length of the rotor lamination stack towards a magnet sensor to facilitate sensing of the permanent magnet via the magnet sensor.
    Type: Application
    Filed: June 14, 2011
    Publication date: October 17, 2013
    Applicant: Black & Decker Inc.
    Inventors: Eric E. Hatfield, Joseph G. Stauffer, Earl M. Ortt
  • Publication number: 20120090863
    Abstract: A screwdriving tool that includes a driving tool (driver), a sensor, a sensor target and a contact trip assembly that is coupled to the driving tool and has a nose element. The driver has a housing, a motor and an output member that is driven by the motor. One of the nose element and the output member is axially movable and biased by a spring into an extended position. The sensor and sensor target are configured to cooperate to permit the sensor to provide a sensor signal that is indicative of movement of the one of the nose element and the output member. The motor is controllable in a first operational mode and at least one rotational direction based in part on the sensor signal.
    Type: Application
    Filed: December 30, 2010
    Publication date: April 19, 2012
    Inventors: Daniel Puzio, Craig A. Schell, Joseph P. Kelleher, Scott Eshleman, Andrew E. Seman, JR., Todd A. Hagan, Joseph G. Stauffer, Will Wang, John D. Cox
  • Publication number: 20110303432
    Abstract: A power tool that includes a housing assembly, a motor received in the housing assembly, a trigger, an output spindle, a transmission and a bearing. The transmission is received in the housing assembly and transmits rotary power between the motor and the output spindle. The transmission has an output planetary stage with an output planet carrier. The transmission also has a member that is axially movable between a first position, which causes the transmission to operate in a first speed ratio, and a second position in which the transmission operates in a second speed ratio that is different than the first speed ratio. The bearing is disposed radially between and engages both the housing assembly and the output planet carrier. The output spindle is at least partially received into the output planet carrier such that the bearing indirectly supports the output spindle.
    Type: Application
    Filed: June 7, 2011
    Publication date: December 15, 2011
    Inventors: Joseph G. Stauffer, Aris C. Cleanthous, Sankarshan Murthy, John Zellinger, Qiang J. Zhang