By Movement Of The Tool Patents (Class 83/477.1)
  • Publication number: 20110179922
    Abstract: The invention relates to an apparatus for slicing food products, in particular to high-performance slicers, having a product feed, at least one cutting blade which rotates about a blade axis and/or orbits a center axis in a planetary manner and to which at least one product to be sliced can be fed in a product feed direction and having an adjustment device for the cutting blade with which the cutting blade is movable between a cutting position and an additional function position, wherein the cutting blade is coupled to the adjustment device at a first region and to a guide at a second region, and wherein the adjustment movement of the cutting blade is fixed by an exciter movement of the adjustment device and by the guide.
    Type: Application
    Filed: December 16, 2010
    Publication date: July 28, 2011
    Applicant: Weber Maschinenbau GmbH Breidenbach
    Inventor: Guenther Weber
  • Publication number: 20110162500
    Abstract: Embodiments of the invention are directed to a table saw comprising: a base assembly having a base structure and side walls, a table top assembly top surface, and an undercarriage assembly including a motor, the undercarriage assembly configured to adjust the vertical and angular position of a blade relative to the table top assembly; the undercarriage assembly further comprising: an undercarriage frame and cover together defining a narrow housing configured and sized to enclose substantially all of an installed blade under the top surface, the housing having an upper pivot for adjusting the angular position of the blade and being configured to have the motor slidably mounted therein to adjust the vertical position of the blade; and a removable port structure attached to a bottom portion of the undercarriage assembly, the port structure having an outlet port at an outer end configured to be connected to a vacuum source.
    Type: Application
    Filed: January 6, 2010
    Publication date: July 7, 2011
    Applicants: CREDO TECHNOLOGY CORPORATION, ROBERT BOSCH GMBH
    Inventor: Andrew Frolov
  • Publication number: 20110146470
    Abstract: A woodworking machine comprises a base including a lateral wall, a coupled wall having an end coupled to the lateral wall and a working surface provided on a top surface of the lateral wall and having a slot and an indicator, with a thing desired to be cut being placed on the working surface; an active adjustment unit inserted through the lateral and coupled walls; a driven adjustment unit inserted through the coupled wall and engaged with the active adjustment unit; a sensing device connected to the driven adjustment unit and able to sense an adjusted displacement distance of the driven adjustment unit and further convert the displacement distance to a signal and transfer the signal to the indicator; an actuating device where the driven adjustment unit is mounted on; and a saw connected to the actuating device and exposing from the slot.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 23, 2011
    Inventor: Kun-Yen Lin
  • Patent number: 7954533
    Abstract: A sheet cutting table 13, after sticking an adhesive sheet S to a semiconductor wafer W, for cutting the area outside the semiconductor wafer W as an unnecessary adhesive sheet S1 with a cutting device 15. The table 13 includes an inner table 52 which supports the semiconductor wafer W, and an outer table 51 corresponding to the unnecessary adhesive sheet S1 outside the semiconductor wafer W. The upper surface of the outer table 51 is provided with a non-adherable treatment surface 51A, and an adherable member formed with a ring member 53 or a plate member 63 for sticking the adhesive sheet S thereto.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: June 7, 2011
    Assignee: Lintec Corporation
    Inventors: Hideaki Nonaka, Kenji Kobayashi, Yoshiaki Sugishita
  • Publication number: 20110100183
    Abstract: A mechanism for automatically adjusting the height and angle of a table saw blade is disclosed. The table saw comprises a working surface through which the saw blade protrudes to a certain height. An arbor assembly is connected to the bottom of the working surface of the table saw by means of pivot shoes. The mechanism adjustment disclosed comprises two motors and shafts coupled to the arbor assembly that allows the user to adjust the height and angle of the saw blade independently as required for the dimension of the material to be cut or the desired angle of the cut.
    Type: Application
    Filed: November 3, 2009
    Publication date: May 5, 2011
    Inventor: John Tomaino
  • Patent number: 7921754
    Abstract: Woodworking machines including cutting tools and motors adapted to drive the cutting tools are disclosed. The machines also include a detection system adapted to detect a dangerous condition between the cutting tool and a person, and a reaction system adapted to perform a specified action upon detection of the dangerous condition. The machines further include a control system adapted to test the operability of at least a portion of the detection system and/or the reaction system. The control system is adapted to disable the motor if the tested portion is inoperable.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: April 12, 2011
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, J. David Fulmer, Joel F. Jensen, Benjamin B. Schramm, Robert L Chamberlain
  • Publication number: 20110079128
    Abstract: A saw blade elevating device for a table saw includes a mounting base, a rotating base pivotally mounted with the mounting base and having two opposite guide slots each extending inclinedly downward, a saw blade unit pivotally mounted with the mounting base and fastened to the rotating base, and a driving unit having a lead screw rotatably inserted in the mounting base, and a guide rod screwed to the lead screw and provided with two ends respectively inserted in the guide slots of the rotating base. When the lead screw is rotated, the guide rod is driven to be moveable between upper and lower dead points of the guide slots of the rotating base for causing a pivotal movement of the rotating base for lifting or lowering the saw blade unit relative to the mounting base.
    Type: Application
    Filed: December 11, 2009
    Publication date: April 7, 2011
    Applicant: DURQ MACHINERY CORP
    Inventors: Chia-Sheng LIU, Fang-Cheng Hsiao
  • Publication number: 20110067540
    Abstract: Embodiments of a power table saw are described which have a frame structure configured to support a movable saw assembly. The table saw also includes a rip fence attached to the frame structure in a fixed position for contacting a work piece during a cutting operation by said table saw. Further, a table assembly is provided, having a top surface for supporting a work piece, a blade extendable through an opening in the top surface for cutting a work piece, and a motor mounted beneath the top surface for driving the blade. The table assembly is movably mounted on the frame structure so that the table assembly is adjustable, allowing adjustment of the distance between the blade and the rip fence.
    Type: Application
    Filed: September 24, 2009
    Publication date: March 24, 2011
    Applicant: CREDO TECHNOLOGY CORPORATION
    Inventors: ANDREW FROLOV, JASON FELDNER, JIM BOHN
  • Publication number: 20110056351
    Abstract: A table saw having a reaction system configured to take a predetermined action to mitigate injury upon detection of a dangerous condition is disclosed. The reaction system has a component in a predetermined orientation relative to the blade and the component is configured to maintain its orientation relative to the blade as the blade is raised and lowered.
    Type: Application
    Filed: August 27, 2010
    Publication date: March 10, 2011
    Inventors: Stephen F. Gass, David A. Fanning
  • Publication number: 20110048204
    Abstract: A power tool in one embodiment includes a work-piece support surface, a swing arm assembly movable along a swing path between a first swing arm position whereat a portion of a shaping device supported by the swing arm assembly extends above the work-piece support surface and a second swing arm position whereat the portion of the shaping device does not extend above the work-piece support surface, a latch hold pivotable between a first latch hold position whereat the swing arm assembly can be supported by the latch hold in the first swing arm position and a second latch hold position whereat the swing arm assembly cannot be supported by the latch hold in the first swing arm position, an actuator chamber configured to receive at least one actuator, an opening in the actuator chamber, and a plug aligned with the opening and connected to the latch hold.
    Type: Application
    Filed: August 26, 2009
    Publication date: March 3, 2011
    Applicants: Credo Technology Corporation, Robert Bosch GmbH
    Inventor: Brian Hyuk Joon Chung
  • Publication number: 20110048199
    Abstract: A power tool in one embodiment is a table saw which includes a swing arm assembly movable along a swing path, an actuator configured to force the swing arm assembly away from a first swing arm position and toward a second swing arm position, and a riving knife positioned outwardly of the swing arm assembly when the swing arm assembly is in the first swing arm position, the riving knife including a channel with a first end portion and a second end portion, a first curved channel portion with a first center of curvature and located between the first end portion and the second end portion, and a second curved channel portion with a second center of curvature and located between the first end portion and the second end portion, wherein the first center of curvature is not coincident with the second center of curvature.
    Type: Application
    Filed: May 6, 2010
    Publication date: March 3, 2011
    Applicants: ROBERT BOSCH TOOL CORPORATION, ROBERT BOSCH GMBH
    Inventors: Ravinder Voruganti, Ralph Dammertz, Thomas Siwek, Srinath Srinivas, Daniel J. Williams, Stephen M. Oshgan
  • Patent number: 7895929
    Abstract: A blade driving mechanism for a table saw, wherein the table saw comprises a main frame and a saw blade mounted to an driven by the blade driving mechanism, and the blade driving mechanism comprises an electrical motor mounted to the main frame, with the motor being capable of sliding with respect to the main frame; a belt driving system for transferring the rotation of an output shaft of the motor to the saw blade; a center-distance setting device connected between the motor and the saw blade, for adjustably setting the center-to-center distance between the motor and the saw blade; and a saw-blade height adjusting device being operable to adjust the height of the saw blade.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: March 1, 2011
    Assignee: Qingao D&D Electro Mechanical Technologies Co., Ltd.
    Inventors: Yongsheng Zhang, Zaiming Yan
  • Publication number: 20110041667
    Abstract: A bench saw includes a table on a support frame; a hand turning unit comprising a handwheel and a shaft including a threaded end; a transmission unit comprising a frame including a lower slot on either side surface, two T-shaped members pivotably secured to both side surfaces of the frame respectively, each T-shaped member including a transverse first groove and a longitudinal second groove, and a bar including a protrusion at either end, the protrusions being slidingly disposed in the second grooves, and a central threaded hole secured to the threaded end; a blade height adjusting unit comprising a block member secured to the frame, and a grooved sliding member with the block member disposed therein, the sliding member including a guide pin on either side, the guide pins being slidingly disposed in the first grooves; and a saw assembly secured to the sliding member.
    Type: Application
    Filed: August 20, 2009
    Publication date: February 24, 2011
    Inventor: Pei-Fang Chiang
  • Publication number: 20110041665
    Abstract: A miter saw which prevents deterioration in perpendicularity of a cutting blade to the upper surface of a base part when slide of a pipe is regulated by pressing a pipe. In a miter saw, a pair of pipes support a cutting part, on one end side. On the other end side, the pipes are surrounded and supported slidably by a first slide support part of a support member of a turntable. A virtual plane including the axes of the pair of pipes is substantially parallel to the pivotal direction of a disc saw blade. A first screw is screwed in the first slide support part. An end part of the first screw contacts and presses a pipe. This end part is engaged with the pipe so as to restrict slide of the pipe relative to the first slide support part.
    Type: Application
    Filed: November 2, 2010
    Publication date: February 24, 2011
    Inventors: Shigeharu Ushiwata, Hideaki Terashima, Ryuichi Imamura, Toshihiko Hayashizaki
  • Publication number: 20110023674
    Abstract: A dust collection system designed for a table saw is disclosed. The dust collection system includes a dust shroud and dust shield to channel dust generated by a blade as it cuts wood or other material. The dust shroud includes fins and walls to “peel” dust and air off a spinning blade and direct the dust and air downward. The dust shroud encloses the lower front portion of a blade.
    Type: Application
    Filed: July 26, 2010
    Publication date: February 3, 2011
    Inventors: Paul H. Stasiewicz, John P. Nenadic
  • Publication number: 20110011225
    Abstract: For a machine tool, particularly an underfloor circular saw bench, a height adjustment of the tool during operation is provided at least as a function of the respective height of the machined workpiece present across the advancement path to a height level having only little overhang to the workpiece.
    Type: Application
    Filed: November 19, 2008
    Publication date: January 20, 2011
    Inventors: Reiner Krapf, Georg Stellmann, Alexander Werner Hees, Joachim Egeler
  • Patent number: 7845258
    Abstract: Safety systems for power equipment and components and brake cartridges for use in those safety systems are disclosed. The safety systems, components and brake cartridges are specifically applicable for woodworking equipment such as saws. An exemplary brake cartridge includes a housing and a braking component configured to engage a moving part of the power tool upon occurrence of a predetermined event. The brake cartridge may further include a switch configured so that proper installation of the cartridge in the power tool triggers the switch.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: December 7, 2010
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, J. David Fulmer, David A. Fanning
  • Patent number: 7836806
    Abstract: A cut alignment device for a rotary saw having a motor which spins a cutting unit which includes a rotary shaft driven by the motor, a circular blade having a central aperture through which the shaft fits, and a structural housing. The cut alignment device includes the structural housing defining two or more internal compartments, a battery power source carried within the structural housing, and a beam light source, operatively connected to this power source, and also located within the structural housing. The light source projects a light beam from the cutting unit directed slightly away from the plane of the rotary cutting tool or saw blade such that it never intersects the plane of the blade, to assist the operator in cutting accurately.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: November 23, 2010
    Inventor: Raymond J. Caluori
  • Patent number: 7836804
    Abstract: Power equipment with various safety systems is disclosed. Table saws with safety systems and/or blade retraction are disclosed. Over-molded arbors are disclosed, including arbors with prepreg over-molding. An electrically non-conductive material may be disposed to electrically insulate the arbor. The electrically non-conductive material may be made from fiber organized into a pattern.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: November 23, 2010
    Assignee: SD3, LLC
    Inventor: Stephen F. Gass
  • Publication number: 20100192741
    Abstract: A table saw having an adjustable blade, a detection system to detect contact between a person and the blade, and a brake mechanism to engage and stop the blade upon detection of contact between the person and the blade is disclosed. The saw includes a brake positioning system that adjusts the position of the brake mechanism to maintain the brake mechanism in an operative position relative to the blade as the position of the blade is adjusted. The saw also may include a retraction system that urges the blade downward, away from a user, upon detection of contact between a person and the blade. The retraction system may include a releasable gear. The saw may be constructed so that the blade is adjustable up and down around a pivot point downstream of the blade relative to the feed direction.
    Type: Application
    Filed: January 4, 2010
    Publication date: August 5, 2010
    Inventors: Stephen F. Gass, David A. Fanning, Joel F. Jensen, Sung H. Kim, Andrew L. Johnston, David S. D'Ascenzo
  • Patent number: 7739934
    Abstract: Power tool includes a movable blade and a detection system for detecting contact between the blade and an object. Detection system includes an excitation plate capacitively coupling the drive signal to the movable blade. A circuit generates 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 calculates an energy of the blade current signal considering the in-phase and the quadrature components. The circuit compares 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: Grant
    Filed: October 3, 2008
    Date of Patent: June 22, 2010
    Assignee: Power Tool Institute
    Inventors: Vladimir Tetelbaum, Darius Mostowfi, Richard Surprenant
  • Publication number: 20100132527
    Abstract: A saw blade adjustment structure for table comprises a support rod inserted through a respective arched sliding slot on a front support panel and a rear support panel, a handle pivoted to the front end of the support rod and biasable between a holding down position and a release position, and an adjustment member set between the front support panel and the handle and having an oblong hole coupled to the support rod such that the adjustment member is movable between an initial position and a push-out position subject to movement of the handle between the holding down position and the release position.
    Type: Application
    Filed: January 22, 2009
    Publication date: June 3, 2010
    Applicant: DURQ MACHINERY CORP.
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Patent number: 7726224
    Abstract: A crown molding cutting aid apparatus includes a panel that has a top side, a bottom side, a front edge, a back edge, a first side edge and a second side edge. The panel has a slot therein extending into the back edge. The back edge has a first notch and a second notch extending therein. The first and second notches are positioned on opposite sides of the slot. The notches are each angled away from the slot. The panel has a plurality of elongated apertures extending therethrough. Each of a plurality of fasteners is removably positionable through one of the apertures and into a table of a miter saw so that the panel is releasably secured to the table.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: June 1, 2010
    Inventor: Mark J. Panko
  • Patent number: 7726225
    Abstract: A miter saw includes a base section on which a workpiece is mounted, a saw blade section supporting a circular saw blade having a rotation axis extending in a lateral direction, a holder shaft extending in a direction perpendicular to the rotation axis, a holder tiltable about the holder shaft, two parallel guide bars disposed slidable with respect to the holder and extending toward the rotation axis, a support segment fixed to the guide bars and supporting the saw blade section, a pivot shaft disposed between the saw blade section and the support segment and extending in parallel with the rotation axis so that the saw blade section is pivotable about the pivot shaft, and a holder fixing mechanism that fixes a tilting posture of the holder and includes an operation member supported to the holder and having a rotatable shaft passing through a space between the two guide bars.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: June 1, 2010
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Ryuichi Imamura, Shigeharu Ushiwata
  • Patent number: 7707920
    Abstract: Improved table saws and table saws designed to implement safety systems that detect contact between a person and a dangerous portion of the saw are disclosed. The table saws may include an elevation mechanism, a tilt mechanism, and an adjustment system configured to adjust the parallelism between a tilt axis and a blade. The elevation mechanism may include a vertical slide that includes two shafts, and the adjustment system may include a mechanism to adjust the parallelism of the two shafts.
    Type: Grant
    Filed: December 31, 2004
    Date of Patent: May 4, 2010
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, J. David Fulmer, David A. Fanning
  • Publication number: 20100095823
    Abstract: In a bench cutter in which a turn table 2 is fitted to be held by a base 1 horizontally pivotably, a fence 3 for supporting a member to be worked 35 is fixed onto the base 1, a rear side of the turn table 2 is provided with a holder 5 inclinably erected at the base 1, a sliding member is connected to an upper portion of the holder 5, a circular saw portion 12 is held in parallel and slidably in a front and rear direction relative to an upper face of the base 1 and pivotably in an up and down direction relative to the upper face of the base 1, a saw blade 14 and a handle 26 are provided at the circular saw portion 12, and the member to be worked 35 is cut by inclining, pivoting in an up and down direction and sliding in a front and rear direction the circular saw portion 12, a roller 18 is provided at a lower portion of a rear side of the turn table 2 in parallel with a direction of sliding the circular saw portion 12 by being moved up from an installing face of the base 1.
    Type: Application
    Filed: March 14, 2008
    Publication date: April 22, 2010
    Applicant: Hitachi Koki, Co., Ltd.
    Inventors: Ryuuichi Imamura, Takamoto Horiuchi
  • Patent number: 7698976
    Abstract: A miter saw is disclosed having a base, a blade supported by the base, a detection system adapted to detect contact 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.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: April 20, 2010
    Assignee: SD3, LLC
    Inventor: Stephen F. Gass
  • Patent number: 7681479
    Abstract: A woodworking machine including a detection system adapted to detect a dangerous condition between a person and a working portion of the machine is disclosed. The machine includes a reaction system associated with the detection system to cause a predetermined action to take place relative to the working portion upon detection of the dangerous condition. A motion detection system is adapted to detect motion of the working portion and to disable the reaction system when the working portion is not moving. The motion detection system may include a sensor, such as a Hall effect sensor, an electromagnetic field sensor, an optical sensor, or an electrical sensor. The woodworking machine may take the form of a saw, the working portion may be a blade adapted to cut when spinning, and the dangerous condition may be a person contacting the blade.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: March 23, 2010
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, Robert L. Chamberlain, J. David Fulmer, Joel F. Jensen, Benjamin B. Schramm
  • Patent number: 7673548
    Abstract: A cutting workstation which includes a miter gauge. The miter gauge consists of a clamping means whereby the gauge may be fixed to any location upon the length of cutting station work surface. The miter gauge arm is hinged to clamping means by a plate which may be rotated and then fixed at any angle. The arm is extendable and at its distal end exhibits a T shaped plate and fence which itself may be rotated to any angle. The ability to fix the miter gauge at any position along the cutting station work surface along with two means of adjusting angles allows the fence to guide the work piece at virtually any angle.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: March 9, 2010
    Inventor: William Kelly
  • Publication number: 20100050843
    Abstract: Table saws and table saws designed to incorporate safety systems are disclosed. The table saws may include vertical slide elevation mechanisms positioned toward the rear of the saw and constructed so that an arbor block and blade can retract when a safety system detects an unsafe condition. Other table saw parts and components are also disclosed.
    Type: Application
    Filed: August 18, 2009
    Publication date: March 4, 2010
    Inventors: Stephen F. Gass, J. David Fulmer, William L. Emery, Paul H. Staslewicz
  • Patent number: 7669510
    Abstract: A miter saw having a holder fixing mechanism for fixing a pivot posture of a holder. The holder supports a support section on which a saw blade section is pivotally movably supported. The holder is laterally pivotally movable about a holder shaft to change angle of a side surface of a circular saw blade relative to an upper surface of a base. The holder fixing mechanism includes a clamp bolt whose axis is directed perpendicular to the holder shaft and in parallel with the side surface of the circular saw blade. By the rotation of the clamp bolt about its axis, a fixing relationship between the holder and the base section is established.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: March 2, 2010
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Ryuichi Imamura, Shigeharu Ushiwata
  • 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
  • Publication number: 20100031792
    Abstract: A wood cutter assembly includes a saw assembly, a slewing assembly and a skewing assembly. The saw assembly includes a cutter assembly rotated about a drive axis by a drive shaft passing through an open region therein. The cutter assembly includes a cutter mounted to a cutter spindle for rotation about the open region. The cutter assembly is mounted to a spindle housing, which is pivotally mounted to a saw positioner for movement about a pivot axis. The pivot axis passes through the drive shaft transversely to the drive shaft axis. The cutter is slewed so to move the saw positioner, and the spindle housing and cutter assembly therewith, along the drive shaft. The cutter is skewed relative to the drive shaft axis over a range of skew angles by selectively rotating the spindle housing, and the cutter assembly therewith, about the pivot axis.
    Type: Application
    Filed: August 5, 2009
    Publication date: February 11, 2010
    Applicant: McGehee Development Company LLC
    Inventor: Ronald W. McGehee
  • Publication number: 20100005939
    Abstract: A table saw includes a base assembly, a table assembly supported by the base assembly, a saw assembly connected to at least one of the base assembly and the table assembly, the saw assembly having a blade extending through the table assembly, a height adjustment assembly for adjusting the height of the blade, the height adjustment assembly comprising a height adjustment wheel, and bevel adjustment assembly for adjusting the bevel angle of the blade, the bevel adjustment assembly comprising a bevel adjustment wheel. The height and bevel adjustment wheels are disposed at the front of the base assembly. The position of the height and bevel adjustment wheels relative to the front of the base assembly does not change regardless of the blade height and bevel angle.
    Type: Application
    Filed: July 8, 2008
    Publication date: January 14, 2010
    Inventors: Jeremy J. Burke, Jaime E. Garcia, Jeffrey D. Weston, Craig A. Carroll, Peter Chaikowsky
  • Patent number: 7644645
    Abstract: A machine such as a saw, jointer, planer, etc. is disclosed. The machine has cutting tool, a direct drive mechanism configured to move the cutting tool, a detection system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool, and a reaction system adapted to mitigate the unsafe condition upon the detection of the unsafe condition by the detection system. An electrical signal is imparted on the cutting tool, and the signal is used to determine the occurrence of the unsafe condition. The direct drive mechanism is electrically isolated so that the electric signal may be imparted on the cutting tool. The electric isolation may be achieved through configurations such as insulated bearings, a substantially non-conductive housing, and a substantially non-conductive coupling joining two shaft portions.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: January 12, 2010
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, David A. Fanning, J. David Fulmer, Randall J. Huebner
  • Patent number: 7640835
    Abstract: Woodworking machines are disclosed having electrically conductive cutting tools adapted to cut workpieces. The machines include a contact detection system capacitively coupled to the cutting tool, and adapted to detect contact between a person and the cutting tool. The machines also include a reaction system configured to cause one or more predetermined actions to take place upon detection of contact between a person and the cutting tool by the contact detection system.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: January 5, 2010
    Assignee: SD3, LLC
    Inventor: Stephen F. Gass
  • Patent number: 7631587
    Abstract: A front-accessible bevel locking system for use with a power tool includes a mechanism for locking the power tool into a selected tilt or bevel position for bevel angle cuts. The bevel locking mechanism has a lever attached to a link rod by a cam mechanism such that, as the lever is moved to the locked position, the link rod holds a pivot support for the power tool at a bevel angle.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: December 15, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Kenneth Svetlik, Ezequiel Romo, Yi-Te Liao, Chih-Yung Huang
  • Publication number: 20090293692
    Abstract: Throat plates for table saws and table saws including the same are disclosed. In some embodiments, the throat plates and/or saws include at least one securement mechanism adapted to secure and prevent inadvertent removal of the throat plate from the throat of the saw. In some embodiments, at least one of the securement mechanisms also provides a height adjustment mechanism and/or prevents vertical removal of the throat plate. In some embodiments, the throat plate includes an accessory mounting port that provides a portal for accessories, including safety accessories, to extend through the plate from beneath the table of the saw. In some embodiments, the port extends from the plate's outer perimeter to divide the plate's rear end portion into a pair of spaced-apart members. In some embodiments, these members are independently secured to the table saw and retained apart from each other by one or more of the securement mechanisms.
    Type: Application
    Filed: May 20, 2009
    Publication date: December 3, 2009
    Inventors: Stephen F. Gass, J. David Fulmer, David A. Fanning
  • Patent number: 7621206
    Abstract: The multi-functional woodworking guide is a modular portable universal guide, adapted for guiding multiple hand held power tools, that is extendable with the use of multiple guide plates, side bars and edge bars in order to increase the size of the guide device to any length, thus being capable of cutting, grooving or sanding an unlimited length of material with the use of side extension clamps. The multi-functional woodworking guide is compact, portable and easy to transport, as it fits into the back seat or trunk of a car. The multi-functional woodworking guide is easy to secure to a work piece by various integrated clamps, which do not have to be move when cutting, grooving or sanding the material.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: November 24, 2009
    Inventor: Dino Makropoulos
  • Patent number: 7600455
    Abstract: Woodworking machines including cutting tools and motors adapted to drive the cutting tools are disclosed. The machines also include a detection system adapted to detect a dangerous condition between the cutting tool and a person, and a reaction system adapted to perform a specified action upon detection of the dangerous condition. The machines further include a control system adapted to test the operability of at least a portion of the detection system and/or the reaction system. The control system is adapted to disable the motor if the tested portion is inoperable.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: October 13, 2009
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, J. David Fulmer, Joel F. Jensen, Benjamin B. Schramm, Robert L. Chamberlain
  • Patent number: 7591210
    Abstract: A machine is described having at least one dangerous portion. The machine also includes a safety system to detect dangerous proximity between a person and the dangerous portion and perform a predetermined action to limit or prevent injury to the person from the dangerous portion.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: September 22, 2009
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, J. David Fulmer
  • Patent number: 7587967
    Abstract: A circular saw having a machine frame having a table board and a swivel frame arranged underneath the table board, which is swiveled about a swivel axis coplanar with the top side of the table board. The swivel frame accommodates a height adjustable tool bracket carrying at least one cutting tool engaging an associated slot in the table board. The swivel frame in the region of its ends is swivel-suspended on bearing brackets which are mountable on the bottom side of the table board, and are swiveled by an articulated adjusting rod. The tool bracket is height adjusted by an adjusting element which is arranged in driving linkage with an extendable articulated shaft. The adjusting rod and the articulated shaft are operated by cranks mounted on the operating side of the machine frame.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: September 15, 2009
    Assignee: Scheppach Fabrikation von Holzbearbeitungsmaschinen GmbH
    Inventor: Reinhold Bauer
  • Publication number: 20090199689
    Abstract: A power tool includes a base, a table supported by the base for pivoting movement about an axis, a coarse adjustment assembly between the base and the table, and a fine adjustment assembly between the base and the table. The fine adjustment assembly includes a rotating member supported by one of the base and the table, and an engagement surface provided by the other of the base and the table. The rotating member is selectively engageable with and rotatable along the engagement surface to finely adjust the angular position of the table relative to the base. The angular position of the table relative to the base is coarsely adjustable using the coarse adjustment assembly when the rotating member is disengaged from the engagement surface. The fine adjustment assembly disengages the coarse adjustment assembly and maintains the coarse adjustment assembly disengaged when the rotating member is engaged with the engagement surface.
    Type: Application
    Filed: March 6, 2009
    Publication date: August 13, 2009
    Inventors: Jason D. Hetcher, Mark D. Willer, William A. Elger, Harold L. Papenfuss, Daryl S. Richards, David R. Bauer, Michael E. Weber, Eric X. Fernandes, David Hlavac, Michael L. Welliver, Daniel H. Schneider
  • Patent number: 7546791
    Abstract: A saw blade lifting mechanism for a sawing machine includes a fixed table having a bottom transverse rod, a bracket pivoted to, a support member fastened to the transverse rod and provided with a sliding slot, a swinging member pivoted to the bracket and turnable backwards and forwards, a motor fixedly fastened to the swinging member and provided with an output shaft fastened with a saw blade, a first connecting member pivoted to the bracket, a second connecting member pivotally coupled between the first connecting member and the motor, a knife member affixed to the second connecting member, and a guide member affixed to the second connecting member and moveably inserted into the sliding slot of the supporting member such that when the swinging member is turned backwards or forwards the saw blade and the knife member can be synchronously lifted up or lowered down.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: June 16, 2009
    Assignee: Durg Machinery Corp.
    Inventors: Chia-Sheng Liu, Yu-Feng Chan
  • Patent number: 7530297
    Abstract: A miter saw has a remotely actuated bevel angle locking system and a bevel angle adjustment assistance system with a remote override actuator so that the user does not need to reach around to the back of the miter saw to adjust the bevel angle. The remote actuator for the bevel angle locking system can be provided on the front of the miter saw's turntable to form a suite of actuators with the miter lock and miter detent override lever. The remote override actuator for the bevel angle adjustment assistance system can be provided on the handle in proximity to the power switch. Also disclosed is a bevel angle adjustment assistance system in which each of the preset bevel angles can be fine tuned simultaneously and which exhibits other advantages.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: May 12, 2009
    Assignee: Black & Decker Inc.
    Inventors: Craig Allen Carroll, Brent Edward Stafford
  • Patent number: 7481142
    Abstract: A cutting workstation which includes a cutter mounted on an arm type configuration. The arm configuration is slidably moveable relative to a divided work piece support table, the cutter moveable between the divided table. The cutter arm contains a cutter drive assembly exhibiting clutch plates mounted on shafts supported by bearings and driven by gears which in turn are driven by a motor. A gear case with shafts, bearings and internal gears allow the direction of the drive train to be altered.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: January 27, 2009
    Inventor: William Kelly
  • Patent number: 7481141
    Abstract: A cutting workstation which includes a cutter mounted on an arm type configuration. The arm configuration is slidably moveable relative to a divided work piece support table, the cutter moveable between the divided table. The cutter arm contains a cutter drive assembly exhibiting clutch plates mounted on shafts supported by bearings and driven by gears which in turn are driven by a motor. A gear case with shafts, bearings and internal gears allow the direction of the drive train to be altered.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: January 27, 2009
    Inventor: William Kelly
  • Publication number: 20090007744
    Abstract: A device is provided for cutting paper and other graphic substrates (10) in roll on two perpendicular axes simultaneously with automatic errors correction, both in the feeding with respect to a direction (F) along the longitudinal axis (Y) of the substrate, and of the deviation of the image with respect to the edge of the substrate itself. For this purpose, a motor (5) is provided at the horizontal cutting unit (4), in addition to a drive motor (6), suitable for shifting the cutting path in order to make it coincide with the correct cutting line (Tx). In the same way, for the longitudinal cutting assembly (14) along the (Y) axis, in addition to a motor (7) for performing the cut, a motor (8) is provided suitable for translating along the (X) axis the whole cutting assembly on the basis of lateral deviations detected by means of an optic cell (9), whose signals are processed by a microprocessor for the drive of the motor (8).
    Type: Application
    Filed: March 29, 2006
    Publication date: January 8, 2009
    Applicant: FOTOBA INTERNATIONAL s.r.l.
    Inventor: Valter Maddalon
  • Patent number: 7472634
    Abstract: Power equipment with various safety systems is disclosed. Table saws with safety systems and/or blade retraction are disclosed. Over-molded arbors are disclosed for use in power equipment with safety systems and/or blade retraction.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: January 6, 2009
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, J. David Fulmer, David A. Fanning
  • Publication number: 20080289467
    Abstract: A wet wheel cutter including a table top (12) mounted upon a support body, (14) a cutter blade (20) projecting above the table top (12) and being movably mounted for movement between a first angular position and a second angular position relative to the table (top 12), the first and second angular positions being different, the table top (12) being maintained at the same orientation relative to the support body (14) when the blade (20) is at its first and second angular positions.
    Type: Application
    Filed: July 7, 2005
    Publication date: November 27, 2008
    Inventors: Simon James Skillings, Paul Steabben Hepworth