Work-support Includes Passageway For Tool (e.g., Slotted Table) Patents (Class 83/477.2)
  • Publication number: 20080121081
    Abstract: An assembly for a cutting machine which includes a base, a rotating blade extending from a top surface of the base for cutting a workpiece put on the top surface of the base and a support member fixed to the base. The assembly includes a protection member having a first end connected to the support member and the rotating blade of the tile cutting machine is received in an open bottom of the protection member. A fence assembly includes a first fence pivotably connected between two sidewalls of the protection member so as to cover the rotating blade.
    Type: Application
    Filed: February 1, 2008
    Publication date: May 29, 2008
    Applicant: MOTOMAX ELECTRIC CO., LTD.
    Inventors: Chin Ming Cheng, Chou Jenq Lin
  • Patent number: 7377199
    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: Grant
    Filed: January 16, 2002
    Date of Patent: May 27, 2008
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, J. David Fulmer
  • Patent number: 7373961
    Abstract: A worktable includes two first rails arranged in parallel on a base, two guide rods movable along the first rails in a first direction and a second direction reversed to the first direction, two second rails respectively slidably coupled to the guide rods, a sliding plate fixedly mounted on the second rails, and a positioning device for locking the sliding plate to stop the sliding plate from movement relative to the base.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: May 20, 2008
    Assignee: Durq Machinery Corp.
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Publication number: 20080092709
    Abstract: A portable, double bevel, combination table saw and slide miter saw comprising a horizontally disposed working platform with an elongated slot, is supported by a frame. A saw assembly is pivotably mounted beneath the working platform, with a saw blade that protrudes through the slot to cut a workpiece on the platform whereby stationary workpiece operations as well as moving workpiece operations may be executed. The stationary workpiece operations are executed from one side of the platform, and moving workpiece operations are executed from the opposite side of the platform, with separate appropriate controls on each side. The possibility of interference between saw assembly parts and the underside of the work platform inherent in double bevel configurations is avoided by the self-adjustment of the maximum depth for the workpiece bevel cuts.
    Type: Application
    Filed: October 24, 2006
    Publication date: April 24, 2008
    Inventor: Stanley E. Gaw
  • Patent number: 7350444
    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: Grant
    Filed: August 13, 2001
    Date of Patent: April 1, 2008
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, David A. Fanning, Joel F. Jensen, Sung H. Kim, Andrew L. Johnston, David S. D'Ascenzo
  • Patent number: 7350445
    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, a brake pawl, a spring, a fuse wire, circuitry a plug, an aperture for a key, and a switch activated by the key to indicate the cartridge is installed.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: April 1, 2008
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, J. David Fulmer, David A. Fanning
  • Publication number: 20080066598
    Abstract: A convertible miter/table saw comprises a base frame supporting a lower, miter saw table rotatable about a vertical axis. A circular saw assembly, namely a saw blade and motor, is mounted on a rear pedestal of the table and pivotable about a horizontal axis, the miter saw table providing a turntable and having a lower saw slot for receiving the saw blade. In miter saw mode, the swivel position of the miter saw table is adjusted and the circular saw blade moved downwards into the lower saw slot. In table saw mode, an upper saw table connected to the rear of the base frame is pivoted about a horizontal axis from a raised, generally vertical position to a lowered, generally horizontal position in which a slot in the upper saw table accommodates the circular saw blade when the latter is aligned therewith.
    Type: Application
    Filed: September 17, 2007
    Publication date: March 20, 2008
    Inventor: Normand Ouellette
  • Patent number: 7343840
    Abstract: A sawing machine has a cutting angle adjustment mechanism for adjusting the cutting angle of a saw blade. The adjustment mechanism includes a handwheel for rotation by the user to bias a bracket on which a saw unit having the saw blade is mounted so as to further adjust the cutting angle of the saw blade, and a positioning member, which is rotatable between a first position to lock the bracket in position and stop the handwheel from biasing the bracket and a second position to allow operation of the handwheel to bias the bracket.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: March 18, 2008
    Assignee: Duro Machinery Corp.
    Inventors: Chia-Sheng Liu, Yuan-Chih Ting
  • Publication number: 20080041210
    Abstract: A circular saw machine consists of a bed, a platform on top of the bed, a board secured in the bed, a swinging support, and a blade; the board has concentric curved slot and curved bar-shaped protrusion; the swinging support has a shaft portion, a curved groove, and a toothed bottom portion, and is joined to the board with the shaft portion being passed through the curved slot, and the curved bar-shaped protrusion fitted in the curved groove; a block with a groove is secured on the swinging support; a sliding block is fitted on the groove; a sleeve is secured on the sliding block, and a shaft is passed through the sleeve and joined to the blade; the blade sticks out through a slot of the platform; a hand-operated worm engages the toothed portion; the saw blade can be adjusted in angle leftwards and rightwards by turning the worm.
    Type: Application
    Filed: August 16, 2006
    Publication date: February 21, 2008
    Inventor: Meng-Fu Tseng
  • Patent number: 7322266
    Abstract: A table saw includes a stationary table, a movable table linearly movable relative to the stationary table, a rip fence movable relative to the stationary table and the movable table, and a scale device mounted between the stationary table and the movable table and including a tape measure secured on the movable table to move therewith and having a retractable tape having a distal end secured on the stationary table. Thus, when the movable table is pulled outward from the stationary table to fit a wooden workpiece having a longer cutting length, the user can read the values of the retractable tape of the tape measure of the scale device so as to obtain the cutting length of the wooden workpiece directly.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: January 29, 2008
    Assignee: Rexon Industrial Corp., Ltd.
    Inventor: Yi-Yuan Lin
  • Publication number: 20080017001
    Abstract: A sawing table comprises a plate, a positioning device and a guiding device. The positioning device includes a positioning board and a fastening bar which is utilized to fasten the positioning board on the plate for providing a restriction. The guiding device is disposed under the plate and characterized by having lugs engaging the positioning board with chains. Thus, the positioning board is movably guided or alternatively fastened on the plate by operating the fastening bar.
    Type: Application
    Filed: July 20, 2006
    Publication date: January 24, 2008
    Inventor: Ching Wei Shen
  • Patent number: 7320270
    Abstract: A table saw includes a table, a saw unit coupled to a substantially inverted U-shaped suspension girder, two supporting devices fixedly fastened to the bottom side of the table to support the suspension girder, and two sliding blocks respectively fastened to the two ends of the suspension girder and respectively coupled to a respective arched guide slot in each of the supporting devices to guide movement of the suspension girder along an arched track to keep the cutting reference point of the saw blade in position so that the saw blade can cut the workpiece accurately.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: January 22, 2008
    Assignee: Durq Machinery Corp.
    Inventors: Chia-Sheng Liu, Yu-Feng Chan
  • Publication number: 20080006133
    Abstract: A saw blade disassembling device for a table saw includes a saw base and a work table. The saw base consists of a main shaft holder, a main shaft and a saw blade. The main shaft is pivotally positioned in the main shaft holder, and the saw blade is fixed at the front end of the main shaft. The main shaft has its outer circumference equidistantly bored with plural locking holes. The worktable has its upper side bored with a positioning groove corresponding to the locking hole of the main shaft. The positioning groove is fitted with a locking pivot extending downward to form a positioning rod, which can be actuated to move up and down axially in the positioning groove and be inserted in one of the locking holes of the main shaft to fix the main shaft in position for facilitating disassembling of the saw blade.
    Type: Application
    Filed: July 5, 2006
    Publication date: January 10, 2008
    Inventor: Bor-Yann Chuang
  • Publication number: 20070295183
    Abstract: The present invention relates to feedback systems that are used with power tools to provide the user with sensory feedback information allowing the user to determine the position of an adjustable portion of a power tool with respect to a stationary portion of a power tool or with respect to a workpiece without having to refer to a scale or manual measuring device. This feedback information may make it easier and faster for the user to determine the orientation or location of an adjustable portion of a power tool or determine the orientation or location of the workpiece with respect to an operational member of the power tool allowing the user to concentrate his thinking on executing the operation instead of concentrating on set up.
    Type: Application
    Filed: June 26, 2006
    Publication date: December 27, 2007
    Inventors: Robert P. Welsh, Mehul R. Jani
  • Patent number: 7308845
    Abstract: A sawing angle indicating-and-reading device for a table sawing machine includes a saw base, a driving connecting rod and an angle sensing device. The driving connecting rod is actuated to drive the saw base to shift bias for an angle. The angle sensing device is composed of an angular signal reading head and a circuit device. The angular signal reading head is firmly fitted on the inner end of the driving connecting rod to rotate together with the driving connecting rod for producing an angle increasing or decreasing signal and putting it out to the circuit device and simultaneously, the circuit device will put out a digital angular value. By so designing, the sawing angles of the table sawing machine can easily and accurately be read, able to elevate precision in sawing.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: December 18, 2007
    Inventor: Bor-Yann Chuang
  • Patent number: 7302878
    Abstract: A protective cover device includes a supporting member secured to a worktable of a sawing machine, a cantilever having rear and front pivot ends pivoted to the supporting member and a cover shield by rear and front journal pins, respectively. At least one of the rear and front journal pins is movable relative to a corresponding one of the rear and front pivot ends between a latched position, where a respective one of the rear and front journal pins pivotally secures a corresponding one of the rear and front pivot ends to a corresponding one of the supporting member and the cover shield, and a released position, where the respective one of the rear and front journal pins is clear of the corresponding one of the supporting member and the front pivot end by being withdrawn therefrom.
    Type: Grant
    Filed: May 21, 2005
    Date of Patent: December 4, 2007
    Assignee: P & F Brother Industrial Corporation
    Inventor: Yueh-Hsun Chang
  • Patent number: 7299730
    Abstract: A calibration disk for use primarily with table saws. In an embodiment, the disk is installed on depth control axle and spaces away from the saw cabinet with a spacing collar. A friction collar provides a frictional engagement between the disk and the axle that may be overcome manually, so that the disk may be zero-set. To set the blade height, the operator rotates the depth control until a line corresponding to the desired cut depth is aligned with an alignment mark affixed to the saw cabinet.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: November 27, 2007
    Inventor: Joseph S. Hummel
  • Patent number: 7293490
    Abstract: A sawing angle indicating device for a table sawing machine includes an angle sensing device composed of a sensing disk, a sensor unit and a circuit device. The sensing disk is firmly fitted on a driving connecting rod to rotate together for putting out signals to the sensor unit. Subsequently, the signals received by the sensor unit are put into the circuit device to be compared and checked to obtain an advancing or retreating datum, and then the signal is put out to the digital indicator on the circuit device. By so designing, the sawing angles of the table sawing machine can be read easily and accurately, able to elevate precision in processing.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: November 13, 2007
    Inventor: Bor-Yann Chuang
  • Patent number: 7293488
    Abstract: A kit containing a splitter and drill guide for installing the splitter behind a circular saw blade to prevent contact between the cut work piece and the upwardly moving rear portion of the saw blade. The splitter includes a plurality of pegs that are installed into splitter location holes drilled into the saw work surface or a zero clearance insert. The holes are positioned using the drill guide that is indexed from the side of an actual kerf rather than from a side of the saw blade. In this manner, variations in kerf width resulting from variations in blade width and vibration of the saw blade are accommodated. Splitters having incremental amounts of offset between the centerline of the pegs and the planar surface of the splitter may be selected to provide a desired degree of interference and resulting force between the splitter and the work piece.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: November 13, 2007
    Inventor: Henry Wang
  • Patent number: 7290474
    Abstract: A system for stopping a spinning table saw blade is comprised of a pin assembly disposed adjacent to a saw blade assembly for stopping a spinning saw blade. A receiving block is disposed on a side of the saw blade opposing the pin assembly for receiving the tip of the pin assembly. A driving assembly is coupled to the pin assembly for driving the pin assembly into the spinning saw blade into the receiving block. Finally, a sensing assembly is coupled to at least one of the saw blade assembly and the driving assembly for sensing encroachment of a user's hand in a pre-defined zone. In use, upon sensing a user's hand the sensing assembly signals the driving assembly to stop the spinning saw blade by driving the pin assembly through the saw blade and into the receiving block.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: November 6, 2007
    Assignee: Black & Decker Inc.
    Inventor: David V. Keller
  • Patent number: 7290472
    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: Grant
    Filed: September 1, 2004
    Date of Patent: November 6, 2007
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, J. David Fulmer
  • Patent number: 7287453
    Abstract: A woodworking table with an auxiliary device to provide fast and precise cutting of a work piece at the angle as desired includes a case and a sawing controller. Adjusting slots and pivoting holes are provided on two sides of the case for the sawing controller to penetrate through and to be pivoted in the case. The sawing controller includes a handle. The handle slides along the adjusting slot to adjust angle and height of a saw blade of the sawing controller. The auxiliary device is for further control of the cutting angle.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: October 30, 2007
    Inventor: Sheng-Hsien Kuo
  • Publication number: 20070234864
    Abstract: A saw has a frame; a support table mounted on the frame, a substantially round table rotatably mounted within an aperture formed through the support table; and a saw unit pivotally mounted on one side of the round table and which can pivot between two positions in order to perform chop cuts, a first upper position located away from the round table and a second lower position located adjacent the round table. Radial slot 64 formed through the substantially round table and extends to the edge of the round table. A forward extension extends radially outwardly from the periphery of the round table 20.
    Type: Application
    Filed: April 5, 2007
    Publication date: October 11, 2007
    Inventor: Marcello Bettacchini
  • Patent number: 7278646
    Abstract: A movable table stand is mainly composed of a platform, a first foot frame, a second foot frame and a joint member. The platform has an upper surface for a table saw to be mounted thereon and provided with a sliding groove at its two lengthwise sides respectively. A locking member is set at a front end of each sliding groove. The first foot frame is fixed pivotally with a supporting shaft having a sliding pivot at its two sides respectively for sliding along the sliding groove of the platform. The second foot frame is provided with a fixing bolt at its two sides respectively able to insert coordinately into the joint member. The joint member is fixed on the first foot frame and connected pivotally with the platform and the second foot frame.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: October 9, 2007
    Inventor: Bor-Yann Chuang
  • Publication number: 20070227326
    Abstract: The Cutting Apparatus for Conduit (100) disclosed and claimed herein securely clamps conduit with a clamping means comprised of a pressure shoe seat (8) forced against a conduit seat (9). The conduit seat (9) is urged away from a rotary saw blade (11) by a spring biasing means (18) comprised of at least one spring (18) being coil or leaf spring. When the clamping means is compressed the conduit seat (9) is depressed. A blade slot (12), in the conduit seat (9), allows conduit secured between the pressure shoe seat (8) and the conduit seat (9) to contact the rotary saw blade (11) when the conduit seat (9) is compressed. The conduit seat (9) secures the conduit at an acute blade angle (15) to the rotary saw blade (11). In the preferred embodiment the angular relationship of the conduit seat (9) to the rotary saw blade (11) allows a single cut to sever spirally wound conduit thereby allowing the conduit to be cut to a desired length and installed in the suitable electrical box or panel.
    Type: Application
    Filed: April 4, 2006
    Publication date: October 4, 2007
    Inventor: William R. Parnett
  • Patent number: 7267038
    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: Grant
    Filed: April 25, 2005
    Date of Patent: September 11, 2007
    Assignee: Black & Decker Inc.
    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
  • Patent number: 7263922
    Abstract: A fence for guiding a work surface past a saw blade supported by a table having a support tube running substantially perpendicular to the saw blade. The fence includes a rip fence having a plurality of studs disposed on opposing sides thereof. A pair of fence faces are positioned on opposing sides of the rip fence and have a plurality of slots for removably engaging the studs thereby securing the face fences to the rip fence. A rip fence head is affixed beneath the rip fence. A lockdown clasps the support tube with the rip fence head for securing the fence to the tablesaw. The lockdown includes an adjustment mechanism for stabilizing the fence to the support tube independently of the lockdown. The adjustment mechanism is adjustable relative to the lockdown so that the position of the fence on the support tube can be accurately adjusted by moving the fence relative to the lockdown mechanism.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: September 4, 2007
    Assignee: HTC Products, Inc.
    Inventors: Timothy Hewitt, Michael Ursell
  • Patent number: 7261025
    Abstract: A table saw (10) includes a table top (16) over which a saw blade (20) is positioned. The upper region is covered by a guard (26) which is height-adjustable relative to the saw blade (20) in particular, and the saw blade (20) is angularly-displaceable relative to the table top (16). A gap (32) is located between the guard (26) and the table top (16). The table saw is made safer to handle by the fact that the guard (26) includes a protective panel (36) which is movably supported relative to the guard (26) and closes the gap (32) in a manner such that it cannot be penetrated by the operator's fingers.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: August 28, 2007
    Assignee: Robert Bosch GmbH
    Inventor: Kelvin Wong
  • Publication number: 20070180966
    Abstract: The present invention is an angle indicator for a sawing machine. The sawing machine has a worktable, a pivot shaft, a saw blade holder fastened to the pivot shaft as the pivoting center thereof and having a motor, and a saw blade connected to the saw blade holder, rotatable by the motor and passing through the worktable. The angle indicator has an angle indicating member having an index zone and a following member. The following member is fixed on the pivot shaft and connected to the angle indicating member. Thereby the saw blade is moved with the saw blade holder, and the following member is pivoted with the saw blade holder by the pivot shaft to result in movement of the index zone when the saw blade holder pivots, so that the displacement of the index zone corresponds to the movement of the saw blade.
    Type: Application
    Filed: February 7, 2007
    Publication date: August 9, 2007
    Applicant: Rexon Industrial Corporation Ltd.
    Inventors: Yu-Chuan Lung, Cheng-Hung Chiu
  • Patent number: 7249549
    Abstract: A table saw insert (10) includes an annular table insert portion (22) formed of machinable aluminum and a kerf insert portion (20) received in a stepped passage (44) formed in the table insert portion (22). Holding screws (56) extend through counterbored openings (54) in the kerf insert portion (20) and are threadably received in lips (46) of the table insert portion (22). Set screws (52) are threadably received in the lips (46) on diametrically opposite sides of the holding screws (56) to adjust the upper surface of the kerf insert portion (20) to be planar with the upper surface of the table insert portion (22). Ball plungers (30) are located in plunger openings (36) extending from the outer periphery of the table insert portion (22) to remove side-to-side play of the insert (10) within the table opening (12).
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: July 31, 2007
    Inventor: Thomas Stoffel
  • Patent number: 7240598
    Abstract: A power transmission structure with a dual blade shaft of a circular saw wherein the rear end of the driving shaft of the driving roller is provided with a fixing plate pivotally mounted with a steering roller, a steered roller and a dual level transmission roller. These rollers are surrounded with a first transmission belt, and the fixing plate is provided with a floating rod having an adjustable roller. The rear end of the driven shaft has a driven roller, and the driven roller, the adjustable roller and the dual level transmission roller are provided with a second transmission belt. The first and second transmission belts are used to cause the saw blade and pre-cut blade of the driven shaft to rotate in reverse directions. The tightness of the second transmission belt is adjusted by the floating rod.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: July 10, 2007
    Inventor: Chun-Hsiang Wang
  • Patent number: 7240706
    Abstract: A worktable includes two first rails arranged in parallel on a base, two guide rods movable along the first rails in a first direction and a second direction reversed to the first direction, two second rails respectively slidably coupled to the guide rods, a sliding plate fixedly mounted on the second rails, and a positioning device for locking the sliding plate to stop the sliding plate from movement relative to the base.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: July 10, 2007
    Assignee: Durq Machinery Corp.
    Inventors: Chia-Sheng Liu, Chieh-Yuan Tsai
  • Patent number: 7234380
    Abstract: The present invention is directed to an apparatus for maintaining contact between a portion of a workpiece between a kerf intrusion device and an alignment fence. In an aspect of the present invention, a table saw is configured with a support having a support surface for accepting a saw blade extended through an aperture in the support to cut a workpiece. An alignment fence is adjustably coupled to the saw to allow for workpiece positioning with respect to the saw blade. A kerf intrusion device such as a back splitter is coupled to an arbor for rotating the saw blade. An side pressure splitter is further included on the intrusion device such that a portion of a workpiece disposed between the intrusion device and the alignment fence is directed into contact with the alignment fence.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: June 26, 2007
    Assignee: Black & Decker Inc.
    Inventor: Jaime E. Garcia
  • Patent number: 7231858
    Abstract: A table saw having various embodiments of a measurement and display system. Several embodiments have at least one fence rail on which a removable fence is movably supported and comprise an elongated sensor strip that is located adjacent the fence rail and a sensing unit that is supported and positioned adjacent to the sensor strip and is capable of providing an electrical signal to a display unit that is indicative of the position of the sensor unit relative to the elongated sensor strip. A processing unit is operatively connected to the sensing unit and display unit to provide a digital readout of the position of the sensing unit. A switch is connected to the processing unit and is adapted to provide a zero or reference setting position.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: June 19, 2007
    Assignee: Robert Bosch GmbH
    Inventor: Stephen C. Oberheim
  • Patent number: 7228772
    Abstract: A saw is disclosed having a detection system adapted to detect a dangerous condition between a person and a saw blade, and a brake adapted to stop the saw blade in response to detection of the dangerous condition. The saw further includes a brake positioning system that allows the brake to be positioned in at least two different operable positions to accommodate at least two different blade diameters. The saw may include a system to detect brake-to-blade spacing.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: June 12, 2007
    Assignee: SD3, LLC
    Inventor: Stephen F. Gass
  • Patent number: 7219585
    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 there between. Further, the cutter is capable of elevating the arm either above or below the worktable. Not only is the arm capable of being lengthened and shortened, but also it is also of capable of rotation producing a variety of miter cuts. The arm is also capable of rotating to a vertical axis to produce a chop cut motion. The bifurcated table or work piece support is capable of being rotated through a number of degrees relative to the cutter also producing mitered or angled cuts. The bifurcated worktable is also capable of being elevated above or below or at the level of the cutter. The cutter, if in the form of a circular cutter blade, is preferably provided with the conventional pivotal spring-loaded blade guard.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: May 22, 2007
    Inventor: William Kelly
  • Patent number: 7210386
    Abstract: The quickly-detachable protective cover unit of a table sawing machine includes a protective cover, a non-return plate, a protective plate, a combining plate and an extending plate. The extending plate positioned at one side of the saw blade of a table sawing machine has its inner end fixed with a quickly-detachable handle unit for positioning the combining plate thereon. The protective plate is inserted through the saw blade and the combining plate, positioned on the table-sawing machine. The non-return plate and the protective cover are respectively provided with a quickly detachable device to fit in the positioning hole of the combining plate. The components of the quickly detachable protective cover unit are combined by quickly detachable mechanism so they can be disassembled or assembled quickly, needing no tool for carrying out disassembling work.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: May 1, 2007
    Assignee: Kingsand Machinery Ltd.
    Inventor: Richard Chang
  • Patent number: 7191692
    Abstract: A table saw includes a primary table having an opening through which a saw blade extends, and an auxiliary table slidably coupled to the primary table at one side. A fence is movable on the primary table and the auxiliary table relative to the saw blade. A first scale is provided on the primary table and exposed to the outside. A first index is provided at the fence for indicating readings of the first scale. A second scale is kept from sight when the auxiliary table is abutted against the primary table and exposed to the outside for reading by a second index when the auxiliary table is pulled outwards from the table.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: March 20, 2007
    Assignee: Durq Machinery Corp.
    Inventor: Peter Huang
  • Patent number: 7174820
    Abstract: A rip fence for movable and positionable use on a worktable of a cutting machine includes an adjusting handle for control locking of the fence to the worktable, and a trigger, which keeps the fence locked to the worktable when it is not pressed and, which enables the user to unlock the fence from the worktable by operating the adjusting handle when it is pressed.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: February 13, 2007
    Assignee: Durq Machinery Corp.
    Inventor: Peter Huang
  • Patent number: 7171879
    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: July 2, 2002
    Date of Patent: February 6, 2007
    Assignee: SD3, LLC
    Inventors: Stephen F. Gass, J. David Fulmer
  • 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: 7159629
    Abstract: A worktable apparatus includes a table with a tabletop having a plurality of legs attached thereto. The tabletop has an opening extending therethrough. A panel is hingedly coupled to the tabletop adjacent to the opening and is selectively positionable in a closed position extending over the opening or in an open position exposing the opening. The panel has an upper surface and a lower surface. The panel has central aperture extending therethrough. A plurality of brackets is attached to the lower surface of the panel. The brackets are configured to releasably couple a cutting tool to the lower surface and so that a cutting implement of the cutting tool extends through the central aperture.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: January 9, 2007
    Inventor: Braxton E. Rowe
  • Patent number: 7140361
    Abstract: A stone cutter having blade angle adjustment device includes a rectangular base having a pair of sliding bars, three cutting grooves of different slanting sections and two alignment of rectangular through hole in the top, a pair of hollow interior rectangular bars at two ends for respectively receiving a pair of lateral rods of a U-shaped extension and a sink on underside thereof. A salver plate slidably disposes on the sliding bars. A pair of support arms spacedly dispose on the top of the salver plate each having a first circular through hole and three second through hole in an arcuate slot in upper portion respectively engaged with a pair of first screw holes and a pair of second screw holes of a motor which is secured on the top of the salver plate between the support arms, a guarded blade secured to the axis of the motor and a pair of handled locks selectively engaged with one of the three second circular through holes to adjust the different slanting angles for the blade.
    Type: Grant
    Filed: May 3, 2004
    Date of Patent: November 28, 2006
    Inventor: Teng Chao-Huan
  • Patent number: 7137327
    Abstract: An embodiment of the present invention is directed to a riving knife assembly for a dual bevel table saw, comprising: a first armature configured for coupling with a beveling member; a second armature adjustably and rotatably coupled with the first armature; a first mounting member coupled with the second armature; a first riving bracket coupled with the second armature and configured for adjustably coupling with a bearing retaining nut of a dual arbor assembly; a second riving bracket coupled with the first mounting member and configured for adjustably coupling with the inside of a first bore of a first height bracket; a quick release handle disposed upon the first mounting member; an eccentric shaft coupled with the quick release handle; and a riving knife configured with an engaging assembly for engaging with a locking pin or a guard assembly or a kickback finger system.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: November 21, 2006
    Assignee: Black & Decker Inc.
    Inventors: Jaime E. Garcia, Jeffrey D. Weston, Craig A. Carroll
  • Patent number: 7137329
    Abstract: A circular saw clutch assembly includes an elongated rod that is coupled to a table saw assembly. A peripheral flange is integrally attached to the rod. The flange has a plurality of ball bearings mounted therein. A first washer abuts the flange and includes a plurality of depressions therein positioned for removably receiving the ball bearings. The rod is extended through a saw blade. A first fastener secures the saw blade against the first washer. A second washer is abutted against the flange. A biasing assembly is positioned on the rod and biases the second washer against the flange so that the second washer biases each of the ball bearings into one of the depressions. The rod rotates freely of the first washer and the saw blade when an item being cut by the saw blade arrests rotation of the saw blade.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: November 21, 2006
    Inventor: Bruce A. Moser
  • Patent number: 7134373
    Abstract: An apparatus for use with a table saw to decrease a clearance of a surface surrounding a saw blade includes a throat plate that is inserted into an elongated slot that is provided in the surface of the table saw. The throat plate includes an enlarged opening with a pair of spaced-apart rails that, together, are adapted receive a replaceable T-shaped center portion. The center portion is cut by the saw blade as the blade is raised from below the center portion resulting in a space around the blade having a clearance that approximates the kerf of the blade. Screws secure the center portion in the enlarged opening. A pair of cam screws secures the throat plate in the elongated slot. A side to side adjustable splitter is attached to the throat plate.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: November 14, 2006
    Inventor: James Perry Vice
  • Patent number: 7131364
    Abstract: The present invention discloses a collapsible stand for a bench-top power tool, and a portable power tool therefore. The stand includes a plurality of legs spaced about a central axis and pivotally interconnected by a plurality of cross members. Each leg has an upper end for supporting the power tool and a lower end for contacting an underlying support surface in an expanded position of the stand. The stand may be collapsed wherein the legs and cross members collectively converge toward the central axis as the legs and cross members each translate towards an orientation that is parallel to the central axis.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: November 7, 2006
    Assignee: Eastway Fair Company, Ltd.
    Inventor: Kenneth Brazell
  • Patent number: 7127976
    Abstract: A guide comprises one or more brackets for securing the guide to a cutting tool, a horizontal support member secured to and moveable with respect to the brackets, and one or more arm assemblies secured to the horizontal support member and adapted to secure a working piece relative to the horizontal support member. With the working piece secured to the guide in this manner, the working piece may be readily advanced over a blade of the cutting tool by grasping and moving the horizontal support member relative to the brackets, thus ensuring a precise cutting of the working piece while also allowing a user to keep their hands away from the blade.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: October 31, 2006
    Inventor: George Fitzsimmons
  • Patent number: 7100486
    Abstract: An apparatus for cutting a product includes a conveyor assembly and a slitter assembly. The conveyor assembly conveys the product in a feed direction and defines a conveyance surface, on which the product is conveyed. The slitter assembly slits the product into strips as the product is conveyed in the feed direction. The slitter assembly comprises a plurality of cutting elements arranged in a V shape and overlapping one another in the feed direction, as viewed in a direction substantially normal to the conveyance surface. A chopping assembly is positioned downstream of the slitter assembly. The chopping assembly comprises an elongated blade, which moves in an elliptical cutting motion, such that it has a component in the downward direction to sever the strips of product, and a component in the feed direction to toss the severed pieces of product in the feed direction.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: September 5, 2006
    Assignee: Leprino Foods Company
    Inventors: Kevin Bradley Akins, Theodore Alan Bobkowski, Lester O. Kielsmeier, Paul Joseph Oliveira, William Charles Prewitt, James Michael Volk
  • Patent number: 7100653
    Abstract: An angle adjustable sawing table adapted to allow the installation of a circular saw. Wood material is placed at pre-set geometric angles. One end of a gage is placed on a table, and another end of the gage is flush against a measurement member for adjustment to a preset angle.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: September 5, 2006
    Assignees: Qualipro Enterprise Co., Ltd., Nedful Products Co., Ltd., T C L Supplies Ltd.
    Inventor: Kun-Meng Lin