With Guard Means Patents (Class 83/544)
  • Publication number: 20140013909
    Abstract: A cutting and dust or slurry collecting assembly that comprises: a) a circular saw blade (4) b) a blade guard (5) c) a cover device (6), and the cover device (6) has a front end (31), a rear end (32), a top surface (34), a bottom surface (36), elongated sidewalls (35), and a longitudinal passage (45,46) for the saw blade, d) the blade guard (5) and the cover device (6) being pivotally connected or connectable to one another via a hinge (40) in or adjacent to a lower rear corner of the blade guard (5), such that the cover device and the blade guard can be turned in relation to each other, e) a discharge member (52) is provided at the rear of said has hinge and h an outlet (58) which can be connected to a vacuum source, f) a connection member (12) connects the discharge member (52) with at least one of the longitudinal passage (45, 46) and the cut created rear of the longitudinal passage, g) that the direction of rotation of the saw blade (4) is such that a circumferential part of the blade which has passed bey
    Type: Application
    Filed: January 18, 2012
    Publication date: January 16, 2014
    Applicant: HUSQVARNA AB
    Inventors: Par Carlsson, Hakan Pinzani, Paulo Varella
  • Patent number: 8522658
    Abstract: A table saw is disclosed. The table saw includes a table top including an opening configured to receive a saw blade, a blade case positioned under the table top, the blade case including an interior portion with the saw blade partially positioned within the interior portion, the blade case configured to move relative to the table top, a motor coupled to the saw blade and configured to move relative to the table top, the saw motor configured to rotate the blade about a blade axis, and at least one moveable guard member positioned between the table top and the blade case, the at least one moveable guard member providing an obstruction to the interior portion of the blade case, and the at least one moveable guard member configured to pivot about a pivot axis when the motor is moved up or down or tilted relative to the table top, wherein the pivot axis is substantially perpendicular to the blade axis.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: September 3, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Andrew Frolov
  • Patent number: 8474674
    Abstract: The invention is directed to a pill cutter that has a protected cutting edge. The pill cutter includes a guard, a base, and a cover. The components are arranged such that the guard slides over the cutting edge when the pill cutter is in an open position and the guard exposes the cutting edge when the pill cutter is in a closed position. The invention is also directed at a method for assembling the pill cutter and a method of using the pill cutter to cut a pill or tablet.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: July 2, 2013
    Assignee: Apothecary Products, Inc.
    Inventor: Ka Chuen Sze
  • Publication number: 20130074670
    Abstract: An apparatus for machining a weld tab on an article. In one embodiment, the apparatus includes: a base member including at least one rolling element for contacting an underlying surface, the base member having a leading end and a trailing end; a cutting apparatus operably connected to the base member, the cutting apparatus including: a cutting member positioned proximate the leading end of the base member, the cutting member sized to coincide with a size of the weld tab; and a handle member proximate the trailing end and operably connected to the cutting member, the handle member for modifying a position of the cutting member relative to the base member.
    Type: Application
    Filed: September 26, 2011
    Publication date: March 28, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Brian David Albin, Lawrence Michael Grycko
  • Publication number: 20120186410
    Abstract: A power saw that may be flexibly configured to perform multiple cutting functions is provided by attaching a saw assembly to a base assembly with an offset support that provides a clear path in line with the saw blade, thereby providing a miter saw, a table saw or a radial arm saw as desired by the user. In addition, a tilt mechanism is mounted at the top of the offset support to provide an “apparent” tilt axis near the top surface of the turntable, thereby eliminating an axle near the turntable top surface. Materials being cut by the saw assembly are guided by one or more fences. Alternatively, a reversible fence may be used for miter cuts when configured and affixed to the base assembly in a first position, and may be used for table or radial cuts when configured and affixed to the base assembly in a second position.
    Type: Application
    Filed: February 27, 2012
    Publication date: July 26, 2012
    Inventor: Lawrence Lacy
  • Patent number: 7980924
    Abstract: A cover device for a power tool with at least one disc-shaped working tool (6), includes first and second cover parts (12, 22) and a locking mechanism (41) for releasably pivotally positioning the second cover part (22) relative to the first cover part (12) and having a locking element (46) provided on one of the first and second cover parts (12, 22) and engageable with a counter-locking element (23) provided on another of the first and second cover parts (12, 22), and an actuation member (42) pivotally supported at a pivot point (45) on the one of the first and second cover parts (12, 22) and having an actuation section (43) and a locking section (44) extending at an angle from the actuation section (43), with the locking element (46) being provided at a free end of the locking section (44).
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: July 19, 2011
    Assignee: Hilti Aktiengesellschaft
    Inventor: Thomas Blatz
  • Patent number: 7698978
    Abstract: A cutting including a saw blade protruding from an upper surface of the table can include a splitter positioned on the front side with respect to a cutting direction of the saw blade and in alignment with the saw blade. A guard device is provided for covering the saw blade. A kickback preventing claw member prevents the workpiece from being forced upward by the saw blade after the workpiece has been cut by the saw blade. A mount frame is detachably mounted to an upper portion of the splitter. The guard device and the kickback preventing claw member are supported on the mount frame, so that the guard device and the kickback preventing claw can be removed separately or together from the splitter.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: April 20, 2010
    Assignee: Makita Corporation
    Inventor: Yoshinori Shibata
  • Publication number: 20100089214
    Abstract: An apparatus for cutting fiberglass insulation batting with a rotary blade where an elongate section of fiberglass insulation batting is manually pushed into an inlet of the apparatus whereupon the blade bites into the fiberglass insulation batting and whereupon the elongate now split section of fiberglass insulation batting begins to protrude from the outlet of the apparatus, whereupon the protruding sections of fiberglass insulation batting are manually grabbed and pulled through the apparatus further driving the rotary blade and further cutting the fiberglass insulation batting.
    Type: Application
    Filed: October 8, 2009
    Publication date: April 15, 2010
    Inventor: Richard S. Buss
  • Patent number: 7673778
    Abstract: The invention is directed to a pill cutter that has a protected cutting edge. The pill cutter includes a guard, a base, and a cover. The components are arranged such that the guard slides over the cutting edge when the pill cutter is in an open position and the guard exposes the cutting edge when the pill cutter is in a closed position. The invention is also directed at a method for assembling the pill cutter and a method of using the pill cutter to cut a pill or tablet.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: March 9, 2010
    Assignee: Apothecary Products, Inc.
    Inventor: Ka Chuen Sze
  • Publication number: 20090056514
    Abstract: A quick release device for use in a saw to secure a guard cover to a spreader of a saw blade guard assembly. The quick release device includes a mounting block, which has a mounting groove for receiving the spreader, a pivot member pivotally mounted in the mounting block and having a non-circular shoulder received in a receiving portion of a notch on the spreader, and a lever coupled to the pivot member for rotating the pivot member to cause the shoulder of the pivot member to be locked in the receiving portion of the notch or to be movable out of the notch.
    Type: Application
    Filed: August 22, 2008
    Publication date: March 5, 2009
    Applicant: Rexon Industrial Corp., Ltd.
    Inventor: Jung-Huo Chen
  • Publication number: 20090044677
    Abstract: The present invention provides an anti-kickback for arresting movement of a rail accommodated within an elongate channel. The anti-kickback device includes a slide member arranged to slide along a slide surface between an extended position and a retracted position. The device further includes a resilient member which biases the slide member along the slide surface. The slide member, when in the extended position, is designed to urge the rail into abutment with a wall of the channel to arrest movement of the rail accommodated within the channel. The device further includes a manually operable button coupled to the slide member to enable user-operated movement of the slide member towards the retracted position and a lock mechanism for holding the slide member in the retracted position.
    Type: Application
    Filed: July 8, 2008
    Publication date: February 19, 2009
    Applicant: Black & Decker Inc.
    Inventors: Michael Wilson, Joanne Rogers
  • Publication number: 20080314218
    Abstract: A deflection device for a rope saw assembly, includes a deflection roller (12; 52; 92); a stationary protective cover (13; 53, 93) surrounding art least some regions of the deflection roller (12; 52; 92); and at least one cover member (23; 63; 102, 103) pivotally arranged on the protective cover (13; 53, 93) surrounding at least some regions of the deflection roller, and displaceable along a path radially spaced from the axle (15; 55; 95) of the deflection roller (12; 52; 92).
    Type: Application
    Filed: June 11, 2008
    Publication date: December 25, 2008
    Inventors: Hans-Joerg Rieger, Josef Plattner
  • Patent number: 7434501
    Abstract: A quickly collapsible protective cover unit for a table sawing machine includes two protective covers, two connecting rods, an elongate base and a dividing plate. The dividing plate has its upper end combined between two lengthwise sides of one end portion of the base, provided with plural slots for a fitting rod of plural fixing blocks located at one end portion of the base to fit therein. The slots respectively have a stop edge for retaining the fitting rod therein, not to loosen out of the slots when the fitting rods are pushed in the slots. Then the compress bolt and the fitting rods can tightly force the base and the dividing plate combined with each other. So the protective cover unit can be assembled or collapsed quickly, without using any tool, by handling the compress bolt.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: October 14, 2008
    Inventor: Bor-Yann Chuang
  • Patent number: 7320269
    Abstract: A material cutting and feed roller has a peripheral roller surface that conveys the material to be cut, and a cutting device within the roller that cuts the material. The cutting device has a blade that, when cutting the material, passes through a closeable opening located inside the peripheral surface of the roller. The closeable opening through which the blade passes during the cutting process is closed when the cutting process is not occurring.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: January 22, 2008
    Assignee: Windmoeller & Hoelscher KG
    Inventor: Fritz Achelpohl
  • 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: 7228773
    Abstract: A radial arm saw is adapted with a safety top configured with cutting box enclosure that contains and collects substantially all of the sawdust generated during use. A dust collection system is in fluid communication with the cutting box for removing the sawdust contained therein. Spring biased push blocks function to hold the work piece in place during the sawing process while maintaining the user's hands safely away from the saw blade. A laser alignment device projects a beam within the cutting box along the cutting plane. A control panel is provided to allow use by authorized users upon entry of an authorization code.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: June 12, 2007
    Inventor: Michael S. Powell
  • Patent number: 7152515
    Abstract: Cutter suitable for artificial flower stems. Typically, plastic coated wire stems are cut with hand cutters to various lengths in preparing artificial floral arrangements. The invention requires far less physical effort by the operator than is required when using conventional wire cutters. In the preferred use of the preferred embodiment of the invention, an uncut stem is inserted crosswise through two elongated holes in the guard housing. When the cutter jaws open, the stem is pushed into the open jaws and is cut to a desired length from the flower end when the jaws close. In the preferred embodiment of the invention a gear reduction motor drives an arm and cam roller assembly. That cam roller forces the top handle of the cutter downward causing the jaws to close. As the cycle continues, the cam roller raises and a spring causes the jaws to open.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: December 26, 2006
    Inventor: Wilfred Earl Greenlee
  • Patent number: 7044039
    Abstract: A radial arm saw is adapted with a safety top configured with cutting box enclosure that contains and collects substantially all of the sawdust generated during use. A dust collection system is in fluid communication with the cutting box for removing the sawdust contained therein. Spring biased push blocks function to hold the work piece in place during the sawing process while maintaining the user's hands safely away from the saw blade. A laser alignment device projects a beam within the cutting box along the cutting plane. A control panel is provided to allow use by authorized users upon entry of an authorization code.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: May 16, 2006
    Inventor: Michael S. Powell
  • Patent number: 6886441
    Abstract: A gang blade assembly which controls the trajectory of detritus from a ball grid array substrate dicing operation is described. The assembly includes a cover which partially encases a hub with a plurality of blades. A brush is mounted on the cover to disrupt an air flow created by rotation of the hub and blades. The brush extends beneath the cover and has bristles which contact the hub. The bristles also serve to clear the hub of any detritus produced during dicing. More than one brush may be mounted on the cover.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: May 3, 2005
    Assignee: Micron Technology, Inc.
    Inventor: Ernest J. Hamilton
  • Patent number: 6826992
    Abstract: A mounting structure for connecting detachably a saw blade guard to a worktable of a bench saw includes a first connector at the worktable, a second connector at the saw blade guard, and a fastening member for fastening the second connector to the first connector. The first connector has a block member provided with a screw hole. The second connector has a connecting block provided with a through hole and a conical hole, and a cone fitted into the conical hole and having a through hole and a socket fitted onto the block member. The fastening member has a head stopped at one end of the connecting block, and a threaded shank inserted through the through hole of the connecting block and the through hole of the cone and threaded into the screw hole of the block member to lock the second connector to the first connector.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: December 7, 2004
    Assignee: Durq Machinery Corp.
    Inventor: Peter Huang
  • Patent number: 6758122
    Abstract: A guard assembly for a compound miter saw includes an upper blade guard assembly, a lower blade guard assembly having a movable guard pivotally mounted in the upper blade guard assembly and a linkage assembly. The lower blade guard is pivotally mounted in the upper blade guard assembly. The linkage assembly including an inner link pivotally interconnected with the movable guard and the upper blade guard assembly controls the movement of the guard. A lock release mounted on the upper blade guard assembly locks the movable guard in position.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: July 6, 2004
    Assignee: P&F Brother Industrial Corporation
    Inventor: Mei-Lan Kao
  • Patent number: 6691599
    Abstract: A cutter guard device is adapted for use in a belt saw machine, and includes a stationary hinge leaf formed with a first knuckle unit, a movable hinge leaf formed with a second knuckle unit, and a hinge pin extending through the first and second knuckle units, thereby permitting rotation of the movable hinge leaf between cutter concealing and cutter exposing positions. The movable hinge leaf is further slidable along the hinge pin between retaining and pivoting positions. The movable hinge leaf is movable between the cutter concealing and cutter exposing positions when disposed in the pivoting position on the hinge pin. A retention unit retains releasably the movable hinge leaf in the cutter concealing position when the latter is further disposed in the retaining position on the hinge pin.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: February 17, 2004
    Assignee: P & F Brother Industrial Corporation
    Inventor: Mei-Lan Kao
  • Patent number: 6675689
    Abstract: A blade unit for cutting sheet material including a base member assembly mounting a circular blade and a cover member for detachable engagement with the base member assembly. The base member assembly includes a supporting wall having a circular upper edge and a guard flange extending around the circular upper edge and protecting a portion of an outer edge of the blade from contact. The base member assembly is further provided with a straight bottom edge and a portion of the blade extends below the bottom edge to define an exposed cutting edge for the blade. An elongated guide structure tab extends from the bottom edge parallel to and adjacent the exposed portion of the blade for guiding the blade unit along a slot in a guide template.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: January 13, 2004
    Assignee: The Antioch Company
    Inventors: Carmen Lira Núnez, James W. Reardon, Erhua Cai
  • Publication number: 20030121379
    Abstract: A dispenser for dispensing a material from a cored roll comprises a housing having a plurality of walls forming an interior volume and an opening, at least one pair of coaxially aligned, opposed plungers mounted on opposite walls within the dispenser, and a cutting mechanism. The cutting mechanism includes a blade, a cover for alternately exposing and concealing the blade, and a slidable panel for actuating the cover.
    Type: Application
    Filed: December 28, 2001
    Publication date: July 3, 2003
    Inventors: Paul F. Tramontina, Richard P. Lewis
  • Patent number: 6575068
    Abstract: A guided cutting system including first and second blade cartridges which are used in association with templates. The blade cartridges each include a head and cover portions wherein the head portion includes a non-use end and a cutting end. The cutting end includes a pair of guide pegs and a cutting blade wherein the guide pegs are adapted to be received within a peripheral groove formed on a template. The cover portion is adapted to be attached to the non-use end of the head portion whereby the cover portion acts as a handle. The head portion may be attached over the cutting end to cover and prevent contact with the cutting blade. A different spacing is provided between the cutting blade and guide pegs for the first and second head portions for cropping a photograph and cutting a corresponding backing mat for the photograph.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: June 10, 2003
    Assignee: The Antioch Company
    Inventors: Carmen Lira-Núnez, Erhua Cai, James W. Reardon
  • Patent number: 6561064
    Abstract: An apparatus for slitting a sheet material web as it is wound onto a roll including at least one winding drum supporting the web, a moveably reel spool positioned in a parallel and spaced apart relationship with the winding drum, a slitting device and a control system. The slitting device includes a track member and a slitting member moveably mounted on the track member. The slitting member continuously slits the sheet material web longitudinally along its length as it is wound onto the roll. The control system controls the position of the slitting member on the track so as to maintain a predetermined penetration of the slitting member within the roll as the roll increases in size.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: May 13, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Frank S. Hada, Randall J. LeValley, James M. Perkins, Lowell E. Thoms
  • Publication number: 20030075028
    Abstract: The invention is based on a hand power tool with a disk-shaped tool (14) that can be driven to rotate around a rotation axis (16), in particular a manually guided right angle grinder, a manually guided circular saw, or the like, including a pivoting tool cover (22).
    Type: Application
    Filed: October 24, 2002
    Publication date: April 24, 2003
    Inventors: Albrecht Hofmann, Harald Krondorfer, Thomas Schomisch
  • Publication number: 20030037655
    Abstract: The present invention relates to a catch structure of a rotary cover plate of a circular sawing machine. A rotary cover plate is rotatably mounted on an upper blade guard of a circular sawing machine, to cover a semi-circular hole of the upper blade guard. A lower blade guard is pivoted on the rotary cover plate, so that the lower blade guard may be rotated relative to the rotary cover plate. The rotary cover plate has an inner side protruded with a first catch end which may be stopped and positioned on a side wall of the semi-circular hole. The rotary cover plate has an outer side protruded with a second catch end which may be stopped on a lug of a bottom edge of the lower blade guard.
    Type: Application
    Filed: August 21, 2001
    Publication date: February 27, 2003
    Inventor: Chang Chin-Chin
  • Patent number: 6216577
    Abstract: A guided cutting system including first and second blade cartridges which are used in association with templates. The blade cartridges each include a head portion and cover portion wherein the head portion includes a non-use end and a cutting end. The cutting end includes a pair of guide pegs and a cutting blade wherein the guide pegs are adapted to be received within a peripheral groove formed on a template. The cover portion is adapted to be attached to the non-use end of the head portion whereby the cover portion acts as a handle for guiding the head portion during a cutting operation. Alternatively, the head portion may be attached over the cutting end of the head portion to cover and prevent contact with the cutting blade. A different spacing is provided between the cutting blade and guide pegs for the first and second head portions whereby one head portion may be used for cropping a photograph and the other head portion may be used for cutting a corresponding backing mat for the photograph.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: April 17, 2001
    Assignee: The Antioch Company
    Inventors: Carmen Lira-Núnez, Erhua Cai, James W. Reardon
  • Patent number: 5893311
    Abstract: A power saw is provided with a mechanism for shielding the circular saw blade of the power saw. The shielding mechanism is composed of a first shield, a second and third shield rotatable relative to said first shield, a pivot, a master connection rod, and a slave connection rod. The master connection rod is fastened with the pivot and second shield while the slave connection rod is fastened with third shield and the master connection. The second shield and third shield can be extracted to shield the circular saw blade of the power saw at such time when the circular saw blade is moved away from the work piece. The second shield and third movable shield are retracted to expose the circular saw blade at such time when the circular saw blade is moved toward the work piece.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: April 13, 1999
    Inventor: Peter Huang
  • Patent number: 5743161
    Abstract: An angularly adjustable table saw jig which comprises a base plate having an upper flat surface for supporting a work piece to be cut, a means for slidably attaching the jig to a table cutting tool, an upwardly extending work advancing abutment rotatably connected to the base plate at an axis of rotation for advancing work into cutting engagement with a table cutting blade, and a slot extending generally parallel to a cutting path of the cutting blade for providing clearance for the cutting blade as the jig is advanced into cutting engagement therewith. The jig also includes an elongated guide rail, which is rotatably connected to the base plate, and whose axis of rotation lies in the same plane of the cutting blade.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: April 28, 1998
    Inventor: Jon P. Boudreau
  • Patent number: 5638731
    Abstract: A chop saw comprising a table, pivot member, saw assembly, upper guard, lower guard and lever utilizes the lever to maintain the position of the upper guard and lock the saw assembly in the upper rest position by engaging the lower guard with an extension of the lever. Disengagement of the lever from the lower guard, and pivoting of the saw assembly to the lower engaged position causes the lever to re-engage the lower guard to further open the lower guard and expose the blade.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: June 17, 1997
    Assignee: Black & Decker Inc.
    Inventor: Andrea Garuglieri
  • Patent number: 5531147
    Abstract: A guard apparatus for covering the cutting edge of a circular blade of a radial power saw includes a pivoting guard member extending over a portion of the cutting edge of the blade, mounted to rotate essentially coaxially with the blade, and a fluid driven cylinder and piston mechanism connected to the pivoting guard member for automatically rotating the pivoting guard member to an open position to expose the cutting edge of the blade to a work piece to make a cut and to a closed position upon completion of the cut. The guard apparatus preferably includes an electric circuit and valves for controlling the flow of the fluid into the cylinder and piston mechanism to cause the cylinder and piston mechanism to rotate the pivoting guard member to a closed position upon completion of a cut, a switch mechanism for operating the electric circuit, and a cam portion protruding from the pivoting guard member for bearing against and activating the switch mechanism.
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: July 2, 1996
    Assignee: Alpine Engineered Products, Inc.
    Inventor: George Serban
  • Patent number: 5499565
    Abstract: An apparatus for cutting a conveyor belt. The conveyor belt is clamped against a cutting surface on the base of the apparatus by a pair of parallel clamping bars. A lever arm is pivoted to, and is axially slidable on, a shaft disposed parallel to the clamping bars and the lever arm carries a cutting head. A pair of blades are mounted in an acute angle relation on the cutting head, and as the lever arm is manually pivoted downwardly, the blades cut a pair of slits in the belt. The lever arm is then pivoted up and advanced axially along the shaft and the cutting action is repeated to thereby cut a plurality of V-shaped fingers in the belt, which can be interdigitated with fingers of a second belt end and subsequently bonded together to provide an endless spliced belt.
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: March 19, 1996
    Assignee: Dorner Mfg. Corp.
    Inventors: Kenneth N. Hansen, Daniel E. Ertel
  • Patent number: 5431078
    Abstract: A bagel slicer comprising a food holder having a receptacle for holding a bagel, and a blade holder with a blade, a handle and a pair of blade guarding walls. The food holder has a base and a pair of spaced vertical receptacle walls extending upwardly from the base forming a pair of opposed vertical slots. The blade holder has a handle, a pair of spaced transparent blade guarding walls surrounding and guided along the vertical walls of the food holder, and a blade having a pair of serrated cutting edges intersecting one another. The blade is arranged and dimensioned to ride in the vertical slots and to traverse the central part of the receptacle when the handle is vertically actuated to slice the food article. The bagel is held by a cradle which has blade protection lips to guard the blade cutting edge at the lower travel limit.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: July 11, 1995
    Assignee: Good Idea! Inc.
    Inventors: Paul J. Ricard, Robert A. Cann
  • Patent number: 5410933
    Abstract: A fret-saw machine comprises a base unit having a table on which a workpiece to be cut is placed, a frame member disposed in the base unit and secured to the table, an arm member having one end portion secured to the frame member and another end portion disposed above the table, a blade holder assembly having first and second slide holder units and first and second blade holder units, the first slide holder unit and the first blade holder units being disposed in the base unit and secured to the frame member and the second slide holder unit and the second blade holder unit being secured to another end portion of the arm member, blade supported at its both ends by the first and second blade holder units and a drive unit supported in the base unit by the frame member and connected to the first slide holder unit to drive the blade. The blade holder unit has a blade nipping member for firmly nipping the blade.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: May 2, 1995
    Assignee: Ryobi Limited
    Inventors: Kouichi Miyamoto, Shoji Takahashi
  • Patent number: 5377569
    Abstract: A signature booklet maker (SBM) finishing apparatus for an image producing device includes a modified fold blade having a plurality of contacting teeth spaced part by a predetermined distance. The contacting teeth further include a predetermined contact surface width and a predetermined thickness. The grind direction of the teeth is specified to reduce inside sheet drag during folding. The spaced teeth are adapted drive the stitched signature set in a folding unit without contacting the stitches, thereby eliminating fold skew and inside sheet marking. Moreover, the fold blade has a predetermined hardness to ensure that the blade is not damaged during folding. The SBM further includes a trim waste elimination device and knife guard to prevent booklet trimmings from migrating throughout the trimmer unit. The knife guard eliminates the safety hazard caused by the blade in the resting position and guides air from an air blower to force booklet trimmings into a waste chute.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: January 3, 1995
    Assignee: Xerox Corporation
    Inventors: Paul N. Richards, Harry A. Hilbert, Gary D. Juda
  • Patent number: 5377571
    Abstract: A safety guard system for a band saw that comprises a flexible member and a sensor for deactivating the band saw when the flexible member is not deployed correctly. The flexible member has a resting position and a sawing position. In both positions, the flexible member provides a protective barrier between the band saw user and the band saw blade. The flexible member automatically adjusts by flexing to accommodate different sized work pieces.
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: January 3, 1995
    Inventor: Harold Josephs
  • Patent number: 5345849
    Abstract: A fret-saw machine comprises a base unit having a table on which a workpiece to be cut is placed, a frame member disposed in the base unit and secured to the table, an arm member having one end portion secured to the frame member and another end portion disposed above the table, a blade holder assembly having first and second slide holder units and first and second blade holder units, the first slide holder unit and the first blade holder units being disposed in the base unit and secured to the frame member and the second slide holder unit and the second blade holder unit being secured to another end portion of the arm member, blade supported at its both ends by the first and second blade holder units and a drive unit supported in the base unit by the frame member and connected to the first slide holder unit to drive the blade. The blade holder unit has a blade nipping member for firmly nipping the blade.
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: September 13, 1994
    Assignee: Ryobi Limited
    Inventors: Kouichi Miyamoto, Shoji Takahashi
  • Patent number: 5303626
    Abstract: A cutting apparatus having a holding member for holding a sheet; a plurality of cutter member for cutting the sheet held by the holding member; and a shifting member engaged by the plurality of cutting member, for shifting the plurality of cutting member in parallel with each other. The shifting member is so designed that it can shift the cutting means without aligning them perpendicular to a cutting direction during the cutting of the sheet.
    Type: Grant
    Filed: November 7, 1991
    Date of Patent: April 19, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsukasa Uehara, Masami Kojima
  • Patent number: 5292151
    Abstract: A self piercing cover assembly for concealing an air bag restraint system in a vehicle passenger compartment has a retractable cutter blade that is attached to the underside of an instrument panel next to front end of an invisible door beneath the instrument panel. When the air bag inflates, the cutter blade is pushed up by a deflector shield against the bias of springs and cuts through the instrument panel at several locations making it easier for the door to swing open. The deflector shield is then bent and broken off or deformed by the inflating air bag to provide a shield for protecting against contact with the sharp edges of the cutter blade. The shield and cutter blade retract under the action of the springs so that the shielded cutting edge is below the surface of the instrument panel to provide primary protection against contact with the sharp edges of the cutter blade after the air bag collapses.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: March 8, 1994
    Assignee: Davidson Textron Inc.
    Inventor: Thomas Parker
  • Patent number: 5231906
    Abstract: A saw guard for a table saw having a horizontal table with a blade access opening and a saw blade extending through the access opening to project above the surface of the table including a blade access opening cover disposed in the access opening and confirming to the shape thereof, the access opening cover being flush with the top surface of the horizontal table and having an elongated slit formed therein for permitting the saw blade to extend upwardly therethrough. A guide post is fixedly secured to the trailing portion of the blade access opening cover to extend vertically above the horizontal table with a table saw guard mounted on the guide post so as to be vertically slideable on the guide post such that the table saw guard rests on the access opening cover when a cutting operation is not in progress and wherein the saw guard slides upwardly on the guide post during a cutting operation in response to material to be cut being fed into the saw blade.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: August 3, 1993
    Inventor: Julien Kogej
  • Patent number: 5152208
    Abstract: A trimming apparatus for edge trimming books including a trimmer knife assembly and a conveying apparatus for conveying the books along a path of movement into aligned relationship with the trimmer knife assembly. The conveying apparatus includes a pair of horizontally extending endless conveyor chains positioned in parallel on adjacent sides of the path of movement and including outwardly extending pusher members for engaging longitudinal edges of the books and moving them along the path of movement. A pair of vertically extending guide members are positioned laterally outwardly of the endless chains for engaging the ends of the books and moving them into proper lateral alignment with the path of movement.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: October 6, 1992
    Assignee: K. S. Macey Machine Company, Inc.
    Inventors: Rudolph H. Ruetschle, Philip A. Yakovac
  • Patent number: 4951540
    Abstract: A shingle ridge cap cutter utilized for cutting uniform sections from roof shingles comprising a frame along which a shingle is guided to a manually operated cutter that comprises spaced blades that are moved to sever a section of the shingle. The cutter blades are provided in spaced-apart, non parallel relationship so that a combined rectangular and trapezoidal-shaped ridge cap is made by single movement of the cutter with the roof shingle positioned so that the cutter blades are aligned with the slots along one edge of the shingle. Provision is made for operation to prevent injury to the hands of the worker.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: August 28, 1990
    Assignee: Tapco Products Company, Inc.
    Inventors: James Cross, Jerry Henning, James J. Rhoades, Arthur B. Chubb, David B. Olsen
  • Patent number: 4921024
    Abstract: A method and apparatus to fell a tree is disclosed. A vehicle mountable felling head includes a circular saw mounted to the felling head. A guard overlays the circular saw as a safety measure. The guard has a first portion which is fixed. The fixed portion of the guard has an opening exposing a first arcuate portion of the saw. The guard also has a second, movable portion which overlays a second arcuate portion of the circular saw. The second portion of the guard may be raised to expose a second arcuate portion of the circular saw to cut a slot in one side of a tree with the cut being completed by the first arcuate portion thereby allowing a tree greater in diameter than the radius of the circular saw to be severed.
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: May 1, 1990
    Assignee: Blount, Inc.
    Inventors: Ronald W. Wiemeri, James N. Mitchell
  • Patent number: 4919026
    Abstract: A method and apparatus for cutting a length of flexible material from a web includes, more particularly, a method and apparatus for cutting a predetermined width of carpeting without removing pile fibers from the backing, in a manner which greatly enhances efficiency and productivity.
    Type: Grant
    Filed: September 13, 1988
    Date of Patent: April 24, 1990
    Inventor: Gordon F. Julson, Jr.
  • Patent number: 4885842
    Abstract: A guard-guide device for protecting the hands of the operator of vertical sweet corn cutters and for keeping cutting knives properly aligned. The device comprises an overlapping set of guards and guides attached to the two halves of a sweet corn cutter to be spaced above and outward from the opposed half-round knives of the cutter. The half-round knives of the sweet corn cutter are mounted on top of flexible legs attached to a metal base or can be stamped from a single piece of metal. As corn is pushed down between the knives the natural outward taper of the cob causes the metal legs to move outward. The overlapping guards also expand outward at the same time and in so doing keep the metal knives aligned at 180 degrees to each other for perfect cutting of corn kernels. As the downward thrust of the corn ear is completed the overlapping guards keep the operators fingers from coming into contact with the sharp cutting edges.
    Type: Grant
    Filed: May 12, 1988
    Date of Patent: December 12, 1989
    Inventor: Clement F. Marley
  • Patent number: 4721023
    Abstract: A saw guard system adapted to be mounted on the headstock quill of a multipurpose woodworking tool includes a rear portion adapted to be clamped to the headstock quill, a front portion which forms a pocket with the rear portion and is adjustable so that the pocket size can be varied to accommodate rotary tools of varying thicknesses, and an exhaust port communicating with the pocket and having an outer end adapted to be attached to a vacuum hose. The rear portion supports a riving knife adapted to extend above an associated saw table and which includes an upper saw guard. The riving knife is positioned in a common plane with a rotary tool mounted on the quill, and is capable of remaining closely adjacent to the rotary tool regardless of table position or quill extension.
    Type: Grant
    Filed: June 20, 1986
    Date of Patent: January 26, 1988
    Assignee: Shopsmith, Inc.
    Inventors: Robert L. Bartlett, John G. Legler, Harold E. Folkerth
  • Patent number: 4614140
    Abstract: A safety device for a rocking arm saw includes a blade guard assembly which may be selectively mounted on a handle which rocks the saw blade for crosscutting operations or on a workpiece supporting surface for ripping operations. The blade guard assembly includes a guard housing substantially covering the portion of the blade which extends above the workpiece support surface and is pivotally mounted to the handle for displacing the blade by means of a first mounting arm. The blade guard is mounted on the workpiece support surface by a mounting arm having the opposite ends thereof respectively pivotally connected to the blade guard and a planar, upright support mounted on the supporting surface. The upright support is coplanar with the blade and possess a thickness no greater than that of the blade so as to pass through a cut produced by the blade when a workpiece is moved across the support surface and through the blade.
    Type: Grant
    Filed: May 31, 1984
    Date of Patent: September 30, 1986
    Inventor: Albert A. Macksoud
  • Patent number: 4589314
    Abstract: The present invention relates to an apparatus for cutting motion picture film negatives. The improvements in the present invention film cutting apparatus enable the film cutter to cut the motion picture film negative with a precise, even, clean cut at a location mid-way between adjacent frames of film footage. This is necessary when using a new technique of negative cutting and splicing that allows no frame loss and still maintains all of the requirements of professional (state of the art) motion picture film processing. This has never before been done. The improvements include individual film seating plates which press the lengths of motion picture film to be cut against individual film support and ejection plates to assure that the lengths of film are securely held prior to and during the cutting operation. The present invention also provides safety features to assure that the operator will not accidentally cut himself during the operation.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: May 20, 1986
    Assignee: Brian Ralph
    Inventors: Brian Ralph, Martin Mueller