Responsive To Tool Detector Or Work-feed-means Detector Patents (Class 83/62)
  • Patent number: 9381664
    Abstract: An automatic braking system for a pivoting power tool includes a cutting assembly, a cutting arm supporting the cutting assembly, a hinge supporting the cutting arm through a pivot, a primary braking system operably connected to the cutting assembly, a secondary braking system operably connected to the hinge, and a safety circuit configured to sense an unsafe condition and, in response to sensing the unsafe condition, (i) control the primary braking system to oppose rotation of a blade supported by the cutting assembly, and (ii) control the secondary braking system to oppose rotation of the cutting arm.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: July 5, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Gary L. Voong, Prashant Jayaraman
  • Publication number: 20150075342
    Abstract: Various safety systems for power tools, and in particular table saws include detection systems for detecting a dangerous condition relative to a blade of the power tool, reaction systems for taking mitigation action in response to detection of a dangerous condition. The safety system may detect, prevent, and/or mitigate a dangerous condition associated with the power tool.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 19, 2015
    Inventors: Andy Butler, Brian Lamb, Chris Tacklind, Clinton Lazzari, Edward Cooper, Eric Edward Schultz, Frank Buhrmann, John Gilbert, David Titzler, William Scott, Peter Domeny
  • Publication number: 20150075343
    Abstract: Various safety systems for power tools, and in particular table saws include detection systems for detecting a dangerous condition relative to a blade of the power tool, reaction systems for taking mitigation action in response to detection of a dangerous condition. The safety system may detect, prevent, and/or mitigate a dangerous condition associated with the power tool.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 19, 2015
    Inventors: Andy Butler, Brian Lamb, Chris Tacklind, Clinton Lazzari, Edward Cooper, Eric Edward Schultz, Frank Buhrmann, John Gilbert, David Titzler, William Scott, Peter Domeny
  • Publication number: 20140331833
    Abstract: Woodworking machines including conductive cutters adapted to cut workpieces, and motors adapted to drive the cutters are disclosed. The machines also include a contact detection system adapted to detect contact between a person and the cutter, and to distinguish contact between the person and the cutter from contact between the workpiece and the cutter. The machines further include a reaction system adapted to cause a predetermined action to take place upon detection of contact between the person and the cutter by the contact detection system.
    Type: Application
    Filed: May 13, 2013
    Publication date: November 13, 2014
    Inventors: Stephen F. Gass, Robert L. Chamberlain, Benjamin B. Schramm, Joel F. Jensen, Jonathan N. Betts-LaCroix
  • Patent number: 8875609
    Abstract: The invention is based on a power tool, in particular a stationary saw, having a guard device which has a guard element. It is proposed that the guard device has an actuator system, which is provided for monitoring an opening which is formed at least by the guard element and is adaptable to at least one geometric feature of a workpiece.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: November 4, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Georg Stellmann
  • Patent number: 8800415
    Abstract: A dispenser for sequentially dispensing rolls of sheet material is described. The dispenser has an automatic transfer mechanism for transferring a reserve roll into a dispensing position once a primary roll has been depleted. The automatic transfer mechanism includes a diameter sensing member and a blocker rotatably coupled to the dispenser housing and biased to rotate in a opposite directions. The diameter sensing member and block cooperate with one another in order to block the reserve roll from contacting a drive roller until the primary roll has been depleted. The reserve roll held in the dispenser by two pivoting arms that are biased to rotate towards the drive roller.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: August 12, 2014
    Assignee: Solaris Paper, Inc.
    Inventor: Charles Agnew Osborne
  • Publication number: 20130153115
    Abstract: In an apparatus and a method for welding of workpiece layers, a feed device is activated with a predefined adjustment force without ultrasound activation and the sonotrode is advanced in the direction of an anvil. The adjustment force is subsequently reduced and the sonotrode is activated. The sonotrode can subsequently be deactivated and the adjustment force can be increased on the basis of a deactivation signal.
    Type: Application
    Filed: November 20, 2012
    Publication date: June 20, 2013
    Applicant: MS Spaichingen GmbH
    Inventor: MS Spaichingen GmbH
  • Patent number: 8438958
    Abstract: Woodworking machines including conductive cutters adapted to cut workpieces, and motors adapted to drive the cutters are disclosed. The machines also include a contact detection system adapted to detect contact between a person and the cutter, and to distinguish contact between the person and the cutter from contact between the workpiece and the cutter. The machines further include a reaction system adapted to cause a predetermined action to take place upon detection of contact between the person and the cutter by the contact detection system.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: May 14, 2013
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, Robert L. Chamberlain, Benjamin B. Schramm, Joel F. Jensen, Jonathan N. Betts-LaCroix
  • Patent number: 8402869
    Abstract: Woodworking machines are disclosed having cutting tools adapted to cut workpieces. The machines include a detection system adapted to detect one or more dangerous conditions between a person and the cutting tool. The machines also include a brake mechanism having one or more braking components adapted to engage and stop the cutting tool in response to the detection of a dangerous condition.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: March 26, 2013
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, Joel F. Jensen, Anwyl M. McDonald, David S. D'Ascenzo, Andrew L. Johnston
  • Publication number: 20120204689
    Abstract: A paper cutting apparatus, comprising: a cutting unit configured to cut paper; a moving unit configured to move the cutting unit in a direction intersecting the conveyance direction of the paper; a motor configured to drive the moving unit; a detection unit configured to detect the current value of the motor; a determination unit configured to determine the state of the current value while the cutting unit that has begun moving from a specific position toward a target stop position is moving from a downstream end of the paper to a predetermined target stop position in the movement direction of the cutting unit; and a control unit configured to stop the drive of the motor on the basis of the determination result of the determination unit.
    Type: Application
    Filed: February 6, 2012
    Publication date: August 16, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Masaharu Shimakawa
  • Publication number: 20120167732
    Abstract: Woodworking machines including conductive cutters adapted to cut workpieces, and motors adapted to drive the cutters are disclosed. The machines also include a contact detection system adapted to detect contact between a person and the cutter, and to distinguish contact between the person and the cutter from contact between the workpiece and the cutter. The machines further include a reaction system adapted to cause a predetermined action to take place upon detection of contact between the person and the cutter by the contact detection system.
    Type: Application
    Filed: December 19, 2011
    Publication date: July 5, 2012
    Inventors: Stephen F. Gass, Robert L. Chamberlain, Benjamin B. Schramm, Joel F. Jensen, Jonathan N. Betts-LaCroix
  • Patent number: 8176819
    Abstract: The invention relates to a collision sensing device which can detect a collision between two or more objects. The collision sensing device comprises a deformable member (5) that defines a space (15) which can be assigned a pressure. In a first condition, the deformable member is undeformed, whereby the space (15) is assigned a first pressure (P1). In a second condition, the deformable member (5) is deformed whereby the space (15) is assigned a second pressure (P2). The pressure in the space is monitored. A collision with an object is detected when the pressure in the space changes from the first pressure to the second pressure. The invention can e.g. be applied in connection with machining, such as water jet cutting, but several other fields of application are also conceivable.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: May 15, 2012
    Assignee: Water Jet Sweden AB
    Inventor: Jan Rydh
  • Patent number: 8113097
    Abstract: A protective device for use with table-top circular saws that operate a tool designed as a rotating, disk-shaped sawing tool includes at least one actuator unit and at least one protective unit. The at least one actuator unit moves the protective unit into a protective position on the tool.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: February 14, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Marx, Thilo Koeder, Joachim Platzer
  • Patent number: 8079292
    Abstract: Woodworking machines including conductive cutters adapted to cut workpieces, and motors adapted to drive the cutters are disclosed. The machines also include a contact detection system adapted to detect contact between a person and the cutter, and to distinguish contact between the person and the cutter from contact between the workpiece and the cutter. The machines further include a reaction system adapted to cause a predetermined action to take place upon detection of contact between the person and the cutter by the contact detection system.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: December 20, 2011
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, Robert L. Chamberlain, Benjamin B. Schramm, Joel F. Jensen, Jonathan N. Betts-LaCroix
  • Patent number: 8065943
    Abstract: Woodworking machines are disclosed having a blade adapted to cut workpieces, and an actuating mechanism operable to move the blade toward the workpiece. The machines also include a detection system configured to detect one or more dangerous conditions between a user and the blade, and a reaction system configured to stop the movement of the blade toward the user upon detection of a dangerous condition by the detection system.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: November 29, 2011
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, David A. Fanning, J. David Fulmer, Randall J. Huebner
  • Publication number: 20110226105
    Abstract: Various safety systems for power tools, and in particular table saws, are disclosed herein. The disclosed safety systems include detection systems for detecting a dangerous condition relative to a blade of the power tool, reaction systems for taking mitigation action in response to detection of a dangerous condition. Generally, the embodiments described herein may detect, prevent, and/or mitigate a dangerous condition associated with the power tool.
    Type: Application
    Filed: November 19, 2009
    Publication date: September 22, 2011
    Applicant: POWER TOOL INSTITUTE
    Inventors: Andy Butler, Brian Lamb, Chris Tacklind, Clinton Lazzari, Edward Cooper, Eric Edward Schultz, Frank Buhrmann, John Gilbert, David Zler, William Scott, Peter Domeny
  • Publication number: 20110204077
    Abstract: A paper cutting control device for ticket paper and ticket dispensing machine comprising the same, wherein the paper cutting control device for ticket paper comprises a driving motor (M), a first sensor (2), a cutter (3), a controller and a second sensor (4). The first sensor is located on an upstream of the cutter and used for detecting a spacing mark (B) between adjacent tickets of the ticket paper and sending a spacing mark arrival signal when the spacing mark is detected. The second sensor is located on a downstream of the cutter and used for detecting a front end of the ticket paper and sending a ticket arrival signal when the front end of the ticket paper is detected. A ticket dispensing machine has the paper cutting control device for ticket paper.
    Type: Application
    Filed: October 28, 2009
    Publication date: August 25, 2011
    Inventors: Changgang Gu, Zhigang Xu, Lei Che, Weiwei Xu, Xiaoyan Gao
  • Patent number: 7971613
    Abstract: Methods to detect when a human body contacts a predetermined portion of a machine are disclosed. The methods distinguish contact with a person from contact with other materials. The methods are particularly applicable in woodworking equipment such as table saws to distinguish contact between a person and the blade of the saw from contact between the blade and wet or green wood. The methods and woodworking equipment may include predictive blade stop algorithms that prevent unnecessary activations of a safety brake during coast down of a blade and continued protection in the event a main power switch is turned off.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: July 5, 2011
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, Louis R. Slamka
  • Publication number: 20110088525
    Abstract: An emergency brake system for abrupt braking of a revolving shaft of a machine tool includes at least one brake drum and at least one brake shoe that are brought into engagement with one another in order to brake the shaft. The braking engagement between the brake drum and brake shoe occurs under the influence of a centrifugal force resulting from rotation of a shaft, the brake system being self-reinforcing, in particular self-locking.
    Type: Application
    Filed: March 31, 2009
    Publication date: April 21, 2011
    Inventor: Thomas Winkler
  • Patent number: 7900541
    Abstract: A machine is disclosed having a detection subsystem adapted to detect contact between a person and a specified portion of the machine, and to distinguish that contact from contact with other materials. The detection subsystem imparts an electrical signal to a specified portion of the machine, and distinguishes that contact based on a predetermined frequency response of the electrical signal. A reaction subsystem then causes a predetermined action to take place. The machine may be a power saw designed to minimize injury in the event a person accidentally contacts the blade.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: March 8, 2011
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, J. David Fulmer
  • Patent number: 7806029
    Abstract: A slab shaping system includes a slab shaping device. The slab shaping device includes a cutting device and de-burring device, wherein the cutting device and the de-burring device, respectively cut and de-burr a slab. According to an embodiment, the slab shaping system may include a plurality of spaced apart slab support beams that form at least one slot therebetween. According to an embodiment, the cutting device and de-burring device may be axially-aligned. A method for operating a slab shaping system is disclosed. The method includes the steps of positioning a plurality of slab support beams on a table to form at least one slot; positioning a slab over the slab support beams; positioning a cutting device and de-burring device of a slab shaping device in axial-alignment; and cutting and de-burring the cut in the slab along a length of the at least one slot.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: October 5, 2010
    Assignee: Edw. C. Levy Co.
    Inventors: Thierry Rozot, Kenneth W. Wright
  • Publication number: 20100059144
    Abstract: A power tool is disclosed. The power tool may comprise a movable blade and a detection system for detecting contact between the blade and an object. The detection system may comprise an excitation plate capacitively coupling the drive signal to the movable blade and a circuit in communication with the excitation plate. The circuit may be configured to generate an in-phase component signal and a quadrature component signal from a blade current signal indicative of the instantaneous current drawn by the movable blade and calculate an energy of the blade current signal considering the in-phase component and the quadrature component. The circuit may be further programmed to compare the energy of the blade current signal to an adaptive trigger threshold to detect contact between the blade and the object based on whether the energy of the blade current signal is greater than the adaptive trigger threshold.
    Type: Application
    Filed: October 3, 2008
    Publication date: March 11, 2010
    Applicant: Power Tool Institute
    Inventors: Vladimir Tetelbaum, Darius Mostowfi, Richard Suprenant
  • Publication number: 20100051009
    Abstract: A sawing device for sawing silicon blocks comprises at least one cutting element for sawing silicon blocks, the cutting element being drivable by means of a drive device, at least one guide device, with the at least one cutting element being alignable along a predetermined path by means of the at least one guide device, and at least one monitoring device for monitoring the position of the at least one cutting element.
    Type: Application
    Filed: August 12, 2009
    Publication date: March 4, 2010
    Inventors: Jens MODLER, Axel Kubin
  • Publication number: 20090000443
    Abstract: A machine is disclosed having a detection subsystem adapted to detect contact between a person and a specified portion of the machine, and to distinguish that contact from contact with other materials. The detection subsystem imparts an electrical signal to a specified portion of the machine, and distinguishes that contact based on a predetermined frequency response of the electrical signal. A reaction subsystem then causes a predetermined action to take place. The machine may be a power saw designed to minimize injury in the event a person accidentally contacts the blade.
    Type: Application
    Filed: August 29, 2008
    Publication date: January 1, 2009
    Inventors: Stephen F. Gass, J. David Fulmer
  • Publication number: 20080282854
    Abstract: A carriage is moved in a direction including a Y axis component in order to move a turning process tool that is attached to a tool spindle along a horizontal line that is perpendicular to a Z axis, and thus, a turning process is carried out on a workpiece which is attached to a workpiece spindle.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 20, 2008
    Applicant: YAMAZAKI MAZAK CORPORATION
    Inventors: Shoji MOMOI, Toshihito OKUDA, Hiromasa YAMAMOTO
  • Patent number: 7421315
    Abstract: A machine is disclosed having a detection subsystem adapted to detect contact between a person and a specified portion of the machine, and to distinguish that contact from contact with other materials. The detection subsystem imparts an electrical signal to a specified portion of the machine, and distinguishes that contact based on a predetermined frequency response of the electrical signal. A reaction subsystem then causes a predetermined action to take place. The machine may be a power saw designed to minimize injury in the event a person accidentally contacts the blade.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: September 2, 2008
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, J. David Fulmer
  • Publication number: 20080173147
    Abstract: Embodiments of a power miter saw comprises a saw base having a fence for positioning a work piece, a table rotatably connected to the saw base, a miter arm assembly for angularly positioning the table relative to the saw base, a saw blade and motor assembly pivotally connected to the table having a normally elevated rest position and being configured to lower a saw blade toward the table into position to cut a work piece, a handle connected to the saw blade and motor assembly for lowering the saw blade into cutting position, an activation switch adjacent the handle and positioned to be engaged by an operator, a proximity sensor disposed on the saw blade and motor assembly for detecting the presence of objects within a zone of detection associated with the table, and electrical circuitry connected to the proximity sensor configured to generate an electrical detection signal in response to the proximity sensor detecting the presence of an object within the zone of detection.
    Type: Application
    Filed: January 22, 2007
    Publication date: July 24, 2008
    Inventors: Illya Kovarik, Joseph S. Scaduto
  • Patent number: 7398718
    Abstract: A system and method for tracking and controlling the food product carriage of a food product slicer is described.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: July 15, 2008
    Assignee: Premark FEG L.L.C.
    Inventor: Mark Kovacs
  • Publication number: 20080134852
    Abstract: Miter saws are disclosed having a base, a blade supported by the base, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the dangerous condition. The blade is rotatable, and moves into a cutting zone to cut a workpiece. The predetermined action may be to stop the blade from rotating, to create an impulse against movement of the blade into the cutting zone, or to cause the blade to move away from the cutting zone.
    Type: Application
    Filed: November 5, 2007
    Publication date: June 12, 2008
    Inventors: Stephen F. Gass, J. David Fulmer
  • Publication number: 20080110309
    Abstract: A table saw includes a table, a saw blade, a guide control device, which has a push member for pushing the workpiece for cutting by the blade and a control device for holding by the operator to move the push member. The control device further has a first switch and a transmitter module that wirelessly sends out a disconnection signal when the first switch is switched on. A driving mechanism has a second switch, a motor electrically connected to an external power supply device through the second switch and controllable by the second switch to drive the saw blade, and a receiver module. The receiver module switches off the second switch upon receipt of the disconnection signal from the transmitter module.
    Type: Application
    Filed: November 8, 2007
    Publication date: May 15, 2008
    Applicant: Rexon Industrial Corp., Ltd.
    Inventor: Yen-Chih Chang
  • Patent number: 7258051
    Abstract: An arrangement for cutting an optical fibre comprises a fibre cutter for cutting the fibre. A motor is provided to operate the cutter. To start a cutting movement, the motor is controlled by a control unit in response to a start signal. The start signal is generated when the fibre is located in the cutter. A detector is connected to the control unit to detect when the fibre snaps off and in response thereto cause the control unit to generate a stop signal to stop the cutting movement. If no fibre snap off is detected, the cutting movement is automatically stopped at a predetermined position of the cutter.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: August 21, 2007
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Petter Karlsson, Roland West
  • Patent number: 7173537
    Abstract: The device according to the invention has a sensor (5) for generating and detecting an electromagnetic field situated in the vicinity of a moving part (1) that should not be touched. The device according to the invention also has an evaluation unit (8) that is connected to the sensor (5) in order to evaluate sensor signals that can be generated by the sensor (5), wherein the evaluation unit (8) can generate an evaluation signal. Finally, a control unit (9) connected to the evaluation unit (8) is provided, which is designed and can be operated so as to control the movement of the part (1) as a function of the evaluation signal.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: February 6, 2007
    Assignee: Robert Bosch GmbH
    Inventor: Klaus Voigtlaender
  • Patent number: 7124670
    Abstract: An apparatus for estimating a lifetime of a cutter for cutting a sheet comprising: a detector for detecting a value of a parameter representing a cutting resistance during sheet cutting; a comparator for comparing the detected value of the parameter with a predetermined reference value; and an output element for outputting a result based on the comparison.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: October 24, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigeru Tanaka, Shigeki Morisawa
  • Patent number: 7077039
    Abstract: A machine is disclosed having a detection subsystem adapted to detect contact between a person and a specified portion of the machine, and to distinguish that contact from contact with other materials. The detection subsystem imparts an electrical signal to a specified portion of the machine, and distinguishes that contact based on a predetermined frequency response of the electrical signal. A reaction subsystem then causes a predetermined action to take place. The machine may be a power saw designed to minimize injury in the event a person accidentally contacts the blade.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: July 18, 2006
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, J. David Fulmer
  • Patent number: 7059243
    Abstract: A positive piece engagement indicator for marking tool is provided in which a metal workpiece is contacted with a workpiece contact probe for providing physical contact with, as well as electrical communication with the metal surface of a workpiece. A test voltage and indicator means are placed in series between the workpiece and marking tool. Upon physical contact of the marking tool engagement surface with the surface of the metal workpiece, a circuit is completed by the electrical communication there between, thereby engaging the indicator means. This allows positive verification of actual engagement of worktool to workpiece.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: June 13, 2006
    Inventor: Raymond P. Gatta
  • Patent number: 7055426
    Abstract: A positive piece engagement indicator for marking tool is provided in which a metal workpiece is contacted with a workpiece contact probe for providing physical contact with, as well as electrical communication with the metal surface of a workpiece. A test voltage and indicator means are placed in series between the workpiece and marking tool. Upon physical contact of the marking tool engagement surface with the surface of the metal workpiece, a circuit is completed by the electrical communication there between, thereby engaging the indicator means. This allows positive verification of actual engagement of worktool to workpiece.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: June 6, 2006
    Inventor: Raymond P. Gatta
  • Patent number: 6939199
    Abstract: Improperly mounted wafer saw blades can damage wafers cut or diced with the blades. Embodiments of this invention employ sensors to measure a distance to the blade to help indicate if the blade is improperly mounted. In one method of the invention, a the distance to the blade face is measured as the blade is rotated and a variance in this measured distance is determined. If the variance is no greater than a predetermined maximum, the blade may be used to cut the wafer. In one apparatus of the invention, a wafer saw include a blade and a sensor. The sensor is adapted to monitor a distance to a face of the rotating blade. A processor coupled to the sensor may indicate if the distance to the face of the blade as it rotates deviates too far from a baseline position of the blade face.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: September 6, 2005
    Assignee: Micron Technology, Inc.
    Inventors: Neo Chee Peng, Tan Hock Chuan, Ho Kian Seng, Chew Beng Chye, Lim Guek Har, Tan Kok Chua
  • Patent number: 6889585
    Abstract: A sheet cutting device utilizing cutter blades as a position detection mechanism and a method of reporting cutter malfunctions is provided. The sheet cutting device including a cutter having a pair of cutter blades, one of the blades connected to a cutter driving mechanism for moving the blade through a cutting cycle, a power source is connected to one of the blades so that a circuit is closed when the blades contact one another, and a current sensing device in connection with the circuit to identify when the blades are in physical contact.
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: May 10, 2005
    Assignee: International Business Machines Corporation
    Inventors: Richard Hunter Harris, Jeff David Thomas, Robert Dean Yoder
  • Patent number: 6845697
    Abstract: A system and method for tracking and controlling the food product carriage of a food product slicer is described.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: January 25, 2005
    Assignee: Premark FEG L.L.C.
    Inventor: Mark Kovacs
  • Publication number: 20040144226
    Abstract: A cutting apparatus for cutting a material, such as leather, having a drum, a plurality of rollers, a cutter and a pair of belts. The drum includes a drum surfaces and rotates about an axis. The cutter has a cutting edge that is in contact with the drum surface and is oriented generally perpendicular to the axis. The rollers are arranged generally parallel to the axis and support the belts for rotation thereon. Each of the belts is disposed on an opposite side of the cutting edge and is positioned such that a portion of each belt extends about a corresponding portion of the drum surface forward of the cutting edge. The portion of the belts and the portion of the drum surface are positioned to frictionally co-engage the material and drive the material into contact with the cutting edge.
    Type: Application
    Filed: January 24, 2003
    Publication date: July 29, 2004
    Inventor: Phillip Edmund West
  • Patent number: 6752046
    Abstract: A ratchet wrench having a positioning structure includes a wrench body, a cover mounted on the driving head of the wrench body, an elastic plate mounted between the driving head and the cover, and a push plate mounted between the driving head and the cover. The push plate is formed with an arcuate portion having an outer side rested on the elastic plate and an inner side extended into the opening of the cover. Thus, by combination of the elastic plate and the push plate, the socket is combined with the driving head integrally without detachment, thereby facilitating the user operating the ratchet wrench and the socket. In addition, the socket is detached from the driving head easily and conveniently.
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: June 22, 2004
    Inventor: Yi Min Lee
  • Patent number: 6719468
    Abstract: A positive piece engagement indicator for marking tool is provided in which a metal workpiece is contacted with a workpiece contact probe for providing physical contact with, as well as electrical communication with the metal surface of a workpiece. A test voltage and indicator means are placed in series between the workpiece and marking tool. Upon physical contact of the marking tool engagement surface with the surface of the metal workpiece, a circuit is completed by the electrical communication there between, thereby engaging the indicator means. This allows positive verification of actual engagement of worktool to workpiece.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: April 13, 2004
    Inventor: Raymond P. Gatta
  • Patent number: 6698323
    Abstract: The present invention provides a web perforating apparatus which includes a system for detecting and indicating when a blade in the apparatus is broken, dull or otherwise not perforating the web. The apparatus is typically used with rewinders or other similar machines that produce perforated sheets of products, such as paper, using sets of stationary anvil blades and rotating perforating blades. The apparatus comprises at least one anvil including a blade holder and an anvil blade which is positioned within the blade holder. The blade holder is formed of an insulating material for electrically isolating the anvil blade from the machine frame of the rewinder. An electrical conductor is coupled to the anvil blade for supplying an electric current to the anvil blade from a current source. The apparatus also includes at least one grounded perforating blade for moving relative to the anvil blade and cooperating with the anvil blade to perforate the web at predetermined points along its length.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: March 2, 2004
    Assignee: Georgia-Pacific Corporation
    Inventors: John S. Formon, Bernie Dodge, Andrew Morris
  • Publication number: 20030079589
    Abstract: A system and method for tracking and controlling the food product carriage of a food product slicer is described.
    Type: Application
    Filed: October 26, 2001
    Publication date: May 1, 2003
    Inventor: Mark Kovacs
  • Publication number: 20020166428
    Abstract: A wafer sawing apparatus comprises an electrically conductive chuck table surrounding a suction plate and tactile sensing lines formed on the upper surface of the suction plate. At least one end of each tactile sensing line is electrically connected to the table body. A controller controls the chuck table and a scribing blade. The controller is electrically connected to both elements. The controller comprises a tactile sensing unit connected to the table body for sensing contact of the scribing blade with the tactile sensing lines or the table body and an equipment stop unit for stopping the scribing blade. The controller further comprises a zero point adjusting unit for receiving a contact signal from the tactile sensing unit and for adjusting a zero point of the scribing blade, and a switching unit connecting the tactile sensing unit to the zero point adjusting unit or the equipment stop unit.
    Type: Application
    Filed: November 29, 2001
    Publication date: November 14, 2002
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Joung-Min Oh, Dong-Bin Kim, Sung-Hee Lee, Byeong-Soo Kim
  • Publication number: 20020069734
    Abstract: A woodworking machine having one or more dangerous portions of the machine is disclosed. The machine also includes a safety system configured to detect accidental contact between a person and at least one of the dangerous portions by electrically coupling a signal to the person's body, and detecting if the signal becomes coupled to the dangerous portion.
    Type: Application
    Filed: January 16, 2002
    Publication date: June 13, 2002
    Inventors: Stephen F. Gass, J. David Fulmer
  • Publication number: 20020059855
    Abstract: A miter saw having a base and an arm that pivots toward the base is disclosed. A blade is supported by the arm, and is designed to cut workpieces resting on the base when the arm and blade pivot downward. The saw includes a detection system configured to detect one or more dangerous conditions between a person and the blade, such as when a person accidentally touches the spinning blade, and the saw includes a reaction system to stop the downward movement of the blade and arm when the dangerous condition is detected.
    Type: Application
    Filed: January 16, 2002
    Publication date: May 23, 2002
    Inventors: Stephen F. Gass, David A. Fanning
  • Publication number: 20020059854
    Abstract: A woodworking machine is disclosed having a base, a blade, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the dangerous condition. The blade is rotatable, and moves into a cutting zone to cut a workpiece. The predetermined action may be to stop the blade from rotating and/or to stop movement of the blade toward the cutting zone.
    Type: Application
    Filed: January 16, 2002
    Publication date: May 23, 2002
    Inventors: Stephen F. Gass, J. David Fulmer
  • Publication number: 20020059853
    Abstract: A miter saw having a base and an arm that pivots toward the base is disclosed. A blade is supported by the arm, and is designed to cut workpieces resting on the base when the arm and blade pivot downward. The saw includes a detection system configured to detect one or more dangerous conditions between a person and the blade, such as when a person accidentally touches the spinning blade, and the saw includes a reaction system to urge the arm and blade away from the base when the dangerous condition is detected.
    Type: Application
    Filed: January 16, 2002
    Publication date: May 23, 2002
    Inventors: Stephen F. Gass, David A. Fanning
  • Patent number: 6309119
    Abstract: A high speed, high volume mailing machine which utilizes ink jet technology for the printing of postage indicia on envelopes being fed through the mailing machine and on discrete portions of tape fed past the printing device of the mailing machine includes a tape storing and feeding mechanism which stores a roll of tape in the form of a web of indefinite length for feeding a discrete portion of the tape past the feeding device for each printing operation of the mailing machine, and feeds the tape forward to bring the printed portion thereof past and then reverses the movement of the tape to bring the new leading edge thereof to the beginning of the printing area. The tape storing and feeding mechanism provides a fixed support for the portion of the tape being printed on so as to maintain a critical gap between the surface of the tape and the plane of the jet nozzles to achieve a high printing quality.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: October 30, 2001
    Assignee: Pitney Bowes Inc.
    Inventors: Franklin J. Buckley, Gerald C. Freeman