With Accessory And Handle Patents (Class 30/514)
  • Patent number: 10953542
    Abstract: A robot has a horn (gripping portion). A main body portion of the robot includes a direction determining unit that determines a direction of movement, a drive mechanism that executes a determined movement, a power supply unit that supplies power to the drive mechanism, and an interrupting mechanism that interrupts a supply of power from the power supply unit when the horn (gripping portion) is pulled out. When the horn is pulled out, a spring terminal and a conductor change to a state of non-contact, and a power line is physically disconnected, because of which the robot performs an emergency stop.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: March 23, 2021
    Assignee: GROOVE X, INC.
    Inventor: Kaname Hayashi
  • Patent number: 9981328
    Abstract: A blade holding device for securely holding a saw blade includes a holding unit, a sleeve member, a retaining unit, and a shell. The holding unit includes a clamp member and an insert. The clamp member has two half portions defining a gap for receiving the saw blade, a slot extending through one of the half portions, and an abutment surface. The insert is inserted into the slot, abuts against the abutment surface, and has a threaded hole. The sleeve member surrounds the half portions of the clamp member without blocking the threaded hole. The retaining unit includes a fastening member extending threadedly through the threaded hole for pressing against the saw blade. The shell surrounds the sleeve member and the clamp member.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: May 29, 2018
    Assignee: Basso Industry Corp.
    Inventors: Liang-Chi Hung, Li-Hsin Chang
  • Patent number: 8850941
    Abstract: The present invention includes a cutting device including a table configured to accommodate a workpiece, and a cutting unit positioned on an upper side of the table and being operable to vertically move relative to the table. The cutting unit includes a cutting blade, and a grip portion disposed on a lateral side of the cutting blade and capable of being grasped by an operator in order to vertically move the cutting unit. The grip portion has a palm contact part that can be touched by a palm of the operator when the operator grasps the grip portion. The palm contact part is inclined relative to a reference line that may be perpendicular to a surface of the cutting blade.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: October 7, 2014
    Assignee: Makita Corporation
    Inventors: Goh Yamamura, Tomohiro Hachisuka
  • Publication number: 20140259704
    Abstract: An accessory for a reciprocating power tool includes an elongated post having a base member disposed at a distal end thereof. The base member includes an aperture. The accessory includes first and second members coupled on opposite sides of the base portion. Each of the first and second side members includes a surface having a toothed portion and a non-toothed portion.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: TECHTRONIC POWER TOOLS TECHNOLOGY LIMITED
    Inventor: Christopher Clearman
  • Patent number: 8782910
    Abstract: An inventive device to aid mobility-limited users of gasoline-powered handheld tools while crank-starting of same is disclosed. In particular, the invention is a tethering device to prevent a tool such as a chainsaw from jumping or kicking back when crank-started by an operator with limited bodily mobility, particularly of the back, preventing placing of the tool on the ground for crank-starting. The inventive tethering device allows the operator to remain upright while safely cranking the on-board engine. The inventive device comprises an elongated tether member having first and second ends, a foot placement member for placement of the operator's foot to secure the device and restrain its movement, affixed to the first end and an attachment means for attaching the tether to a chainsaw, affixed to the second end of the elongated tether member.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: July 22, 2014
    Inventors: Wayne E. Lofton, Linda C. Lofton
  • Publication number: 20140150269
    Abstract: A power tool includes a motor, a foot plate, a detent system, and an accessory. The motor is configured to move a saw blade in a repeating pattern of movement. The foot plate defines a saw blade opening and includes a guide surface that defines a storage space. The detent system is supported by the foot plate and has a detent member. The accessory defines (i) a first detent structure configured to receive the detent member therein, and (ii) a second detent structure configured to receive the detent member therein. The accessory is positionable between (i) a use position in which the accessory is spaced apart from the foot plate, and (ii) a storage position in which the accessory is located in the storage space.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Applicants: Robert Bosch GmbH, Robert Bosch Tool Corporation
    Inventor: Dennis Powell
  • Patent number: 8495777
    Abstract: A diver's rescue knife including a handle with a threaded stud at the butt end, a hammer screwed onto the stud and mounting a hard pin with a sharp point.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: July 30, 2013
    Inventor: Scott E. Dixon
  • Publication number: 20130081288
    Abstract: An accessory for a saw assembly includes a fastener structure and an abrasive member. The fastener structure includes (i) a drive portion having a drive surface, (ii) a post extending from the drive portion and including a set of external threads, and (iii) a platform portion attached to one of the drive portion and the post, the platform portion defining an upper support surface and a lower clamping surface. The abrasive member defines a central passage, the abrasive member being secured to the fastener structure so that the drive portion is located within the central passage.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 4, 2013
    Applicants: Robert Bosch GmbH, Robert Bosch Tool Corporation
    Inventor: John Holba
  • Publication number: 20120192440
    Abstract: A power tool includes a housing, a motor supported by the housing and having an output shaft, a planetary transmission coupled to the output shaft and having an output carrier, a dual-eccentric scotch yoke mechanism coupled to the output carrier and drivable by the planetary transmission in response to rotation of the output shaft, and a blade coupled to the dual-eccentric scotch yoke mechanism for movement in a reciprocating manner.
    Type: Application
    Filed: January 27, 2011
    Publication date: August 2, 2012
    Inventors: Jesse J. Jerabek, Thomas Parel, Ronald C. McCurry, Taku Ohi, Ryan Harrison, Elton L. Watson
  • Patent number: 8104182
    Abstract: A portable band saw has a main housing and a saw band circulating within the main housing. A motor for driving the saw band is disposed within a motor housing that is mounted to the main housing. The main housing defines an opening across which the saw band moves in order to cut a workpiece. A battery for driving the motor is mounted to a motor receiving portion of the motor housing. The motor receiving portion has a width corresponding to the width of the opening and opposing to the opening in the forward and rearward directions.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: January 31, 2012
    Assignee: Makita Corporation
    Inventors: Yoshinori Shibata, Akinori Ito
  • Publication number: 20120000080
    Abstract: A hand-held jigsaw includes a saw blade and control element for automating a tracking the saw blade, the hand-held jigsaw, or both along layout lines. A sensor, preferably a camera unit, detects a layout line provided on a work piece.
    Type: Application
    Filed: September 13, 2011
    Publication date: January 5, 2012
    Inventors: Hans Kaiser, Klaus Marx, Stefano Delfini, Wolfgang Niehsen, Thilo Koeder, Gunter Flinspach, Joachim Frangen, Joachim Platzer
  • Patent number: 8079148
    Abstract: A folding hand saw includes a first housing, a transmission unit disposed in the first housing, a second housing having a third pivotal end pivotally connected with a second pivotal end of the first housing and connected with the transmission unit, and a saw blade having a forth pivotal end pivotally connected with a first pivotal end of the first housing and connected with the transmission unit such that the saw blade is pivotable between a folded position where the saw blade is inserted into a first insertion groove of the first housing and a second insertion groove of the second housing, and an unfolded position where the saw blade leaves the first insertion groove and the second insertion groove. As a result, the folding hand saw of the present invention can prevent the saw blade from hurting a user or other people.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: December 20, 2011
    Assignee: K & W Tools Co., Ltd.
    Inventor: Walley Chao
  • Publication number: 20110289786
    Abstract: A portable handheld power tool (1), such as a chain saw or a power drill, having a receiving device (100) arranged on a body portion (2) of the power tool (1). The receiving device (100) is arranged for connecting/disconnecting to the portable handheld power tool (1) either a flexible elongated member, such as a rope, or a fastening device secured to the elongated member or to an operator of the portable handheld power tool (1). The receiving device (100) has a receiving portion (110) for receiving and leading the flexible elongated member therethrough. The receiving portion (100) extends substantially in a plane (P). Furthermore, the receiving device (100) has an attachment portion (120) which is arranged to connect the receiving device (100) to a body portion (2) of the portable handheld power tool (1) by means of a pivot assembly (4).
    Type: Application
    Filed: December 30, 2008
    Publication date: December 1, 2011
    Applicant: HUSQVARNA AB
    Inventors: Hugo Van Bijsterveldt, Rikard Rydberg, Peter Bjorkman
  • Publication number: 20110232112
    Abstract: A power tool is provided with a perforated material remover to remove perforated material from power tool cutting implements. The power tool also includes a rip guide which has a long guide edge and two attachment points to the shoe/base of the saw. The rip guide is attached to the base/shoe via a pair of L-shaped openings that accept L-shaped support arms of the rip guide. The rip guide can also be folded for compact storage. The power tool also includes dual bevel scales for quickly and easily setting the bevel angle on the power tool.
    Type: Application
    Filed: May 26, 2011
    Publication date: September 29, 2011
    Applicant: BLACK & DECKER INC.
    Inventors: Richard C. Nickels, JR., David L. Wikle, Tim Bowman, James R. Parks, Jonathan D. Bigden, Jeffrey Peck, Mei Ling Cheng, Hung Jung Chiang, Chun Chieh Huang
  • Publication number: 20110132160
    Abstract: Hand-operated tools; such as hand saws, knives, and files, having improved features for enhancing use thereof are disclosed. The hand tools include one or more recoil members and are adapted to absorb motion of the hand tool in a first direction, and to supplement motion of the hand tool in a second direction. A method for use of an improved hand tool is disclosed, the method includes hand tools adapted with recoil members.
    Type: Application
    Filed: December 9, 2009
    Publication date: June 9, 2011
    Inventor: John C. Zimmerman
  • Publication number: 20110083330
    Abstract: An accessory for a reciprocating saw, having a blade configured to cut a workpiece and a shoe including a guiding surface for engaging the workpiece, includes a body having a first face and a second face opposite the first face. The body includes a member proximate the second face for coupling the accessory to the shoe. A guiding surface is defined on the first face of the body for engaging a workpiece and an opening is formed in the body for receiving the blade. The guiding surface constitutes a modified surface configured to differ from the guiding surface of the shoe by at least one characteristic.
    Type: Application
    Filed: June 3, 2009
    Publication date: April 14, 2011
    Inventors: Michael S. Steele, Timothy Kenney, Steven F. Thiel
  • Publication number: 20100058597
    Abstract: A saw blade guard unit is used in cooperation with a handsaw having a saw blade and a handle connected with the saw blade. The saw blade guard unit includes a flexible strip and a holder. The flexible strip has a head end, a tail end for positioning to a front portion of the saw blade of the handsaw, and a body between the head end and the tail end for guarding teeth of the saw blade of the handsaw. The holder is adapted for mounting to the handle of the handsaw.
    Type: Application
    Filed: July 9, 2009
    Publication date: March 11, 2010
    Applicant: K&W Tools, Co., Ltd.
    Inventors: Aldous CHAO, David Wang, Sammy Chan
  • Publication number: 20100043768
    Abstract: A portable cutter has a base member, a main body, a cutting blade, a protection member, a dust collection member, and a guide member. The base member moves on a workpiece, the base member having a shaft provided in proximity to one end thereof. The main body is coupled to the base member. A posture of the main body with respect to the base member is changeable. The cutting blade is attached to the main body and driven to cut the workpiece. The cutting blade has an outer periphery. The protection member covers a part of the outer periphery of the cutting blade. The dust collection member has an inlet provided in proximity to the outer periphery of the cutting blade for drawing and collecting dust. The guide member is pivotably supported to the shaft of the base member for guiding the dust to the opening of the dust collection member.
    Type: Application
    Filed: July 17, 2008
    Publication date: February 25, 2010
    Inventors: Tomoyoshi Yokota, Tetsuo Ebata, Shinji Kuragano, Tomomasa Nishikawa
  • Publication number: 20090293291
    Abstract: A circular saw including a motor housing having a first end portion and a second end portion, a motor assembly disposed within the housing, a rotary blade assembly having a predetermined weight mounted to the first end portion of the motor housing, and a battery pack having a predetermined weight disposed on the second end portion of the motor housing. The battery pack and the rotary blade assembly are configured and arranged to be in longitudinal alignment with one another, and the longitudinal alignment of the battery pack with the rotary blade assembly promotes counterbalancing between the predetermined weight of the rotary blade assembly and the predetermined weight of the motor housing.
    Type: Application
    Filed: August 7, 2009
    Publication date: December 3, 2009
    Applicant: Credo Technology Corporation
    Inventors: Mark Miklosz, Matthew Rybka
  • Patent number: 7617608
    Abstract: A hacksaw having a frame that includes a back handle and an elongated beam that has a series of ridges on at least one or more surfaces of the elongated beam that form a file for reducing and smoothing surfaces of an article. The elongated beam has a first distal end coupled with a first back handle section. A hacksaw blade is coupled with the back handle and a fore piece coupled to a second distal end of the elongated beam.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: November 17, 2009
    Inventor: Artin J. Zakarian
  • Publication number: 20090100682
    Abstract: The invention relates to a hand machine tool, particularly to a hand machine tool for sawing, comprising a drive unit (12a) with a drive shaft (14a; 14b), and a vacuum device (16a; 16b) with a suction unit (20a; 20b) and a drive shaft (22a; 22b). According to the invention, the hand machine tool comprises a gearbox unit (24a; 24b), that is connected upstream of the drive shaft (22a; 22b) of the suction unit (20a; 20b).
    Type: Application
    Filed: October 29, 2007
    Publication date: April 23, 2009
    Inventors: Stefano Delfini, Beat Gerber, Miguel Alexandre Pinto Da Costa
  • Publication number: 20090019710
    Abstract: A power cutter comprising: a housing 2; an engine 24 mounted within the housing 2; a support arm 7 mounted on the housing and which projects forward of the housing; a blade mounting mechanism 70,90, 86, 92 rotatably mounted on the end of the support arm and which is capable of being rotationally driven by the engine 24 when the engine is running; a liquid fuel aeration mechanism 126 to generate aerated fuel for the engine; an air intake 314 for the provision of air for the liquid fuel aeration device 126; an air filtration mechanism 316 to filter the air drawn in from the air intake for the liquid fuel aeration mechanism; a fuel tank 124 for providing fuel to the liquid fuel aeration mechanism; and an exhaust 146 through which the exhaust gases generated by the operation of the engine are expelled; wherein the air filtration mechanism comprises an air filter 320 comprising a plurality of pleats and wherein the air filtration mechanism further comprises an air filter cleaning mechanism comprising a moveable pl
    Type: Application
    Filed: July 2, 2008
    Publication date: January 22, 2009
    Applicant: BLACK AND DECKER INC.
    Inventors: Horst GROSSMAN, Stefan SELL, Martin SOIKA
  • Publication number: 20080289198
    Abstract: The invention relates to a clamping device (8) for connecting a saw blade (12) to a reciprocating rod (6) of a jig saw, in particular a hand-operated compass saw (2), comprising a mounting (20), which is connected to the reciprocating rod (6) and has a recess (22) for receiving a head end (10) of the saw blade (12), a locking sleeve (30), which can be turned about the axis (40) with respect to the mounting (20) against the force of a torsion spring (60) to lock the head end (10) of the saw blade (12) in a locking position in the recess (22) and to allow removal of the saw blade (12) in a removal position. It is intended that a stop (78) interacts with a part (80) of the torsion spring (60), in order to prevent movement of the locking sleeve (30) beyond the removal position.
    Type: Application
    Filed: July 31, 2007
    Publication date: November 27, 2008
    Inventors: Hans Kaiser, Marcel Casota, Daniel Saegesser
  • Publication number: 20080276470
    Abstract: A simple attachment for a reciprocating tool that will effectuate the ability to do a flush cut in an inexpensive and simple manner which is neither' too ligid, nor not rigid enough. This is effectuated by providing an insert, which fits into the reciprocating tool in the same fashion as a regular' blade. The present invention then offsets the placement of a blade, sander, file, or' other 1 tool by as many inches as wished by the user 1. The blade, sander, file, or other tool is held rigid through the use of a 45 degree bracket spanning the distance from the original plane to the offset plane, or via a single or compound trapezoid design.
    Type: Application
    Filed: January 18, 2006
    Publication date: November 13, 2008
    Inventors: Jon Ritter, Rebecca Ritter
  • Publication number: 20080216328
    Abstract: A saw and hand guard system is provided. This system includes: a hand-operated saw, wherein the saw further includes a handle having a rear portion and a front portion, and wherein the rear portion is adapted to receive a user's hand; and a hand guard adapted to be mounted on the front portion of the handle, wherein the hand-guard further includes: a durable, rigid plate, wherein the plate further includes a single piece of material, and wherein the single piece of material is shaped to provide at least two distinct protective surfaces; at least one bracket attached to or formed integrally with the plate for detachably mounting the plate on the front portion of the handle; and at least one connector, wherein the at least one connector cooperates with the at least one bracket for mounting the hand-guard on the front portion of the handle.
    Type: Application
    Filed: March 8, 2007
    Publication date: September 11, 2008
    Inventor: Ryan Adkins
  • Publication number: 20080196257
    Abstract: An assembly comprising a frame comprising a top portion and a bottom portion, the top portion being configured to removably couple a motor assembly portion of a handsaw, and the bottom portion being configured to fixedly couple a structure. A method of affixing a handsaw to a structure that includes removably coupling a motor assembly portion of the handsaw to a structure using an assembly.
    Type: Application
    Filed: February 19, 2008
    Publication date: August 21, 2008
    Inventor: Randy Eller
  • Publication number: 20080127499
    Abstract: The present invention discloses a hacksaw, comprising a structure having a frame that includes back handle and an elongated beam that has a series of ridges on at least one or more surfaces of the elongated beam that form a file for reducing and smoothing surfaces of an article. The elongated beam has a first distal end coupled with a first back handle section. Further provided is a hacksaw blade coupled with the back handle and the elongated beam.
    Type: Application
    Filed: December 4, 2006
    Publication date: June 5, 2008
    Inventor: Artin J. Zakarian
  • Publication number: 20080115371
    Abstract: A power tool, a saw and a circular saw. The power tool may include a handle including a support portion movably supportable on the housing portion and extending substantially about the circumference of the housing portion. The support portion may include a second end movable relative to a first end such that the support portion selectively applies a force to the housing portion. The saw may include a bevel angle detent mechanism in which one of the detent member and the recess is angularly adjustable relative to the associated one of the detent support and the recess support to adjust the predetermined bevel angle position. A bevel angle detent mechanism may include an engagement operating assembly operable between a detent engagement-enabled condition, in which the detent member is engageable in the recess, and a detent engagement-prevention condition, in which the detent member is prevented from engaging the recess. The circular saw may include a spindle lock assembly.
    Type: Application
    Filed: November 15, 2007
    Publication date: May 22, 2008
    Inventors: Douglas W. Allen, Scott R. Fischer, Peter A. Banach, Steven L. Berg
  • Patent number: 7261027
    Abstract: A sawing machine includes a workbench, a band saw pivotally installed on the workbench, a weight movable between an idle position on the workbench and a working position on the band saw and an adjustable torque provider for providing an adjustable torque to the band saw. The adjustable torque is set to a maximum when the weight is in the idle position in order to lift the band saw from the workbench. The adjustable torque is set to a minimum when the weight is in the working position in order to lower the band saw toward the workbench.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: August 28, 2007
    Inventor: Kuo-Chuan Lin
  • Patent number: 7219436
    Abstract: A resilient hand guard for protecting the hand of a hacksaw user including a flat shield formed of resilient non-metallic or elastomeric material having a height equal to that of the frame and a width at least as great as a projected frontal width of a user's hand when grasped around the handle. The shield has an elongated notch extending downwardly from an upper margin having a width and length sufficient to be fitted around and receive support from an upper portion of the frame just forwardly of the handle. The shield also has a mounting aperture positioned directly below the notch sized to fit over and receive support from a threaded end of an elongated rear blade tensioning support of the frame. The shield has sufficient resiliency for a side portion thereof to be protectively deflected around the hand upon inadvertent impact against an object during use of the hacksaw.
    Type: Grant
    Filed: January 2, 2004
    Date of Patent: May 22, 2007
    Inventor: Henry B. Barry
  • Publication number: 20040200079
    Abstract: A tool has a tool element extending longitudinally of a handle. The handle has a body portion, a neck portion and a head portion with a forward base. The neck portion has a smaller cross-sectional dimension than the forward base. The body portion is generally oval in cross-section. The body portion has a major transverse axis dimension that decreases from a proximal end that is adjacent to the neck toward a distal tip and a minor transverse axis dimension that is less than the major transverse axis dimension. A skin of cushion material may be disposed over a major part of the body portion.
    Type: Application
    Filed: April 9, 2003
    Publication date: October 14, 2004
    Inventors: Cheryl Ann Stoughton, Kurt Van Ulmer, Michael D. Hennessey
  • Publication number: 20040194318
    Abstract: Disclosed is a saw frame having wheel cutters for cutting glass. In particular, the present invention relates to a saw frame having wheel cutters respectively mounted to both a saw frame and a handle, and with a plurality of glass bending grooves formed at the bottom of the handle for bending glass cut by the wheel cutters to remove the same. According to the present invention, the saw frame can easily cut out glass as well as wood, metal, plastic or the like.
    Type: Application
    Filed: April 20, 2004
    Publication date: October 7, 2004
    Inventor: Dal-Seong Park
  • Publication number: 20040135692
    Abstract: A holder (20a, 20b) is provided on a portable tool (2) having a housing (4), in which a transponder (26a, 26b) can be accommodated, which is a in particular part of an anti-theft system. The holder (20a, 20b) is, in the final assembled condition, delimited by an outer wall (18) of the housing (4) and at least on other structural element (16) of the tool (2), which after final assembly is applied to the outer wall (18).
    Type: Application
    Filed: December 18, 2003
    Publication date: July 15, 2004
    Inventors: Armin Below, Markus Hartmann, Stefan Zamel
  • Patent number: 6684515
    Abstract: A hacksaw weight having a pair of axially aligned saw engagement members adjustably secured to one another by an extending threaded support shaft. A threaded engagement-retaining fitting can be selectively positioned on the threaded support shaft with a retaining disk and registration pin positioned thereon for engagement with aligned notches in the respective engagement members. The weight can be selectively secured in multiple positions on both the hacksaw frame and blade.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: February 3, 2004
    Inventor: William G. Clark
  • Patent number: 6442781
    Abstract: A plane saw assembly has a handle, a nut inserted in the handle, a hollow plane saw connected to the handle, a hollow plug inserted in the hollow plane saw and the handle, a bolt inserted in the hollow plug, a collar receiving the hollow plane saw, and a drill device having a threaded post inserted in the collar. The hollow plane saw has an end slot, a large number of plane blades, and a large number of through holes matching the plane blades. Each of the plane blades has a cutting edge.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: September 3, 2002
    Inventor: Mark Chen
  • Patent number: 6434838
    Abstract: Protective sheath for saw teeth of a handsaw, including a base section, a protective slat and multiple magnetic members. The base section has an upper edge and a lower edge marked with British and metric system scales. The protective slat integrally extends from the lower edge of the base section to define a protective slot. The multiple magnetic members are inlaid in the base section beside the protective slot at predetermined positions for attracting the saw blade. This invention has a better attractively fixing effect. The protective sheath is applicable to different kinds of handsaws with various patterns of handles. In addition, the protective sheath also serves as a ruler.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: August 20, 2002
    Inventor: Hsiao-feng Mai
  • Patent number: 6357122
    Abstract: A hand saw for penetrating and cutting drywall, comprising a handle, an elongated blade having generally opposed blade top and bottom edges, the blade top edge being flat and said blade bottom edge having saw teeth for cutting drywall, the blade having an inner end and an opposed free end area, the inner end being attached to the handle and the free end area having a tapered sharpened cutting edge extending from the blade bottom edge at the saw teeth to the blade top edge. The cutting edge is formed by a pair of inwardly tapered flat surfaces of the blade between the blade top and bottom edges at the free end area that converge at the sharpened cutting edge. A pointed tip is defined by the blade flat top side and the tapered cutting surface and the pair flat surfaces and by the blade flat top side. A hand stop is connected to the top side of the handle. The blade bottom edge is slightly tapered upwardly relative to the blade top edge between the handle and the free end area at the sharpened cutting edge.
    Type: Grant
    Filed: August 14, 1999
    Date of Patent: March 19, 2002
    Assignee: Vaughan & Bushnell Manufacturing Company
    Inventor: Robert P. Bachta
  • Patent number: 6318352
    Abstract: A dust and particle control attachment for a saw having a housing and a rotary blade secured for rotation on a shaft extending from the housing comprising a rotary blade guard enclosing a portion of the rotary blade having one side thereof secured to the housing and the other side thereof removably secure to the one side to form a passageway for dust and particles produced during a cutting operation, the passageway having an intake end and a discharge end, a first arrangement is associated with at least one of the side and the other side of the rotary blade guard adjacent the intake end of the passageway to enable cutting inside corners of walls disposed at a predetermined angle with respect to each other both horizontally and vertically, and a second arrangement associated with at least one of the one side and the other side of the rotary blade guard to contain the dust and particles within the passageway and to direct the dust and particles to a collection means connected to the rotary blade guard adjacent
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: November 20, 2001
    Inventors: Michael Gnazzo, Robert W. White
  • Publication number: 20010039738
    Abstract: A hand saw for penetrating and cutting drywall, comprising a handle, an elongated blade having generally opposed blade top and bottom edges, the blade top edge being flat and said blade bottom edge having saw teeth for cutting drywall, the blade having an inner end and an opposed free end area, the inner end being attached to the handle and the free end area having a tapered sharpened cutting edge extending from the blade bottom edge at the saw teeth to the blade top edge. The cutting edge is formed by a pair of inwardly tapered flat surfaces of the blade between the blade top and bottom edges at the free end area that converge at the sharpened cutting edge. A pointed tip is defined by the blade flat top side and the tapered cutting surface and the pair flat surfaces and by the blade flat top side. A hand stop is connected to the top side of the handle. The blade bottom edge is slightly tapered upwardly relative to the blade top edge between the handle and the free end area at the sharpened cutting edge.
    Type: Application
    Filed: August 14, 1999
    Publication date: November 15, 2001
    Inventor: ROBERT P. BACHTA
  • Patent number: 6076261
    Abstract: A sheath for handsaws of the kind having an elongated toothed blade and a handle at one end includes an elongated body with an open groove along the majority of the length of the body to receive the tooth line of the saw. Near a free lower end, the body carries a cover which releasably holds the free end of the saw blade. At the opposite upper end there is a clamp which releasably holds the handle portion of the saw. This makes it possible to release the saw from the sheath by small, comfortable swinging motions.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: June 20, 2000
    Assignee: Sandvik AB
    Inventors: Eckhard Eriksson, Staffan Lindberg, Staffan Garras
  • Patent number: 5873170
    Abstract: A saw is described as having an adjustable handle wherein the angle of the handle in relation to the longitudinal axis of the saw blade and blade holder is rotatably adjustable.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: February 23, 1999
    Inventor: John Stanley
  • Patent number: 5848473
    Abstract: A reciprocating saw blade comprises an elongated substantially flat body having a tang end and a distal tip end, a back edge and a spaced apart cutting edge. The cutting edge is formed of first and second pluralities of alternately and oppositely facing slicing teeth which define gullets formed therebetween. The first plurality of the slicing teeth extends from the one end and merges into the second plurality of the slicing teeth which extends to the other end. Each slicing tooth includes a slicing face facing one end, a planing face facing the other end, and a tip including an uppermost planar surface. The tips of the second plurality of teeth are substantially tangent to a first tooth tip tangent line. Each tip surface of the second plurality of teeth lies at a greater angle to the first tip tangent line than the tip surface of the first plurality of teeth. A method of making a reciprocating saw blade in accordance with the present invention is also disclosed.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: December 15, 1998
    Assignee: Fiskars Inc.
    Inventor: Lloyd W. Brandenburg, Jr.
  • Patent number: 5778649
    Abstract: A power-driven hedge trimmer includes an engine housing (10) which is attached to a base (11) having a cutting tool (12) and a front handle (13) at one end and a rear handle (14) including a gas control (17) at its other end. The rear handle is rotatable relative to the base to enable adjustment to different operating positions. The axis of rotation of the rear handle is inclined at an angle of about 25.degree. relative to the longitudinal axis of the cutting tool (12). The rear handle can be latched in three predetermined operating positions by a latch device (19, 21, 22, 24). The gas control is connected to a rotatable pawl (19) cooperating with the latch device in order to prevent releasing thereof during actuation of the gas control and to prevent actuation of the gas control during adjustment of the rear handle.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: July 14, 1998
    Assignee: Aktiebolaget Electrolux
    Inventors: Claes Losdahl, Stefan Stark, Richard Skogward
  • Patent number: 5778747
    Abstract: In a power saw, such as a power miter saw or chop saw, an approximately planar work surface is provided for supporting a workpiece, a frame is pivotally mounted adjacent to the work surface, and a blade is rotatably supported on the frame above the work surface. The frame and blade are pivotable between an upper, non-work position spaced away from the work surface, and a lower, work position located toward the work surface for engaging with the blade a workpiece supported on the work surface. A motor is mounted on the frame and is drivingly connected to the blade for rotatably driving the blade. An ergonomically-designed handle assembly is also mounted on the frame, and an arm of the assembly extends along a first plane oriented approximately parallel to the work surface when the frame and blade are located in the lowered, work position, and a handle projects downwardly from the arm and extends along a second plane oriented at an angle of at least approximately 50.degree. relative to the first plane.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: July 14, 1998
    Assignee: Rexon Industrial Corp., Ltd.
    Inventor: Ruey-Zon Chen
  • Patent number: 5325597
    Abstract: Two-piece assembly which clamps to the frame of a hacksaw forward of and adjacent the handle and has two protective wing shields extending laterally outward from the hacksaw in front of the operator's hand. The wing shields may be integral with a hand and finger grip plastic mating portion attached to the handle of the hacksaw, or be separate and attached by bolts and nuts to the hacksaw frame forward of the handle.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: July 5, 1994
    Inventor: Norman E. Clifton, Jr.
  • Patent number: 5263257
    Abstract: Herein disclosed is a pruning saw which comprises: a saw blade (1); a grip sheath (3) having a blade guide hole (2) extending therethrough in the longitudinal direction thereof for guiding the saw blade (1) slidably; and a handle (4) positioned at the back of the grip sheath (3) and extending from the saw blade (1), the saw blade (1) being so inserted into the blade guide hole (2) that it can be pushed and pulled therein. Further comprised is an object holder (6) which is disposed at a suitable spacing from and generally in a position opposed to the saw blade (1) for holding an object (7) between itself and the saw blade (1) when in the pruning operation.
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: November 23, 1993
    Assignee: ARS Edge Co., Ltd.
    Inventor: Shigetsugu Takigawa
  • Patent number: 5172522
    Abstract: A U-shaped handle is disclosed that replaces the protruding pole handle curently supplied with commercial grinders or buffers. The U-shaped handle is wide enough at a first end to allow the gloved fingers of a large hand to fit inside and narrow enough at a second end to fit closely to the sides of the grinder when attached to the grinder housing. Two bolts feed through holes in each side of the U-shaped handle and are screwed into the housing of the grinder where the protruding pole type handle normally was screwed in. The bolts have unthreaded portions enabling the handle to pivot. Finger notches cut into the first end of the handle reduce lateral movement of the handle in the user's hand during grinding. The handle may be manufactured from plastic or other insulated material to provide insulation from electrical shock.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: December 22, 1992
    Inventor: Daniel J. Jares
  • Patent number: 5159759
    Abstract: The present invention discloses a shield that attaches to the upper guard of a hand held power saw. The shield prevents debris created by operation of the saw from hitting the user. The rotation of the saw blade creates moving air. The shield directs the moving air away from the saw and the user. The shield in translucent and can be made from polycarbonate.
    Type: Grant
    Filed: June 26, 1991
    Date of Patent: November 3, 1992
    Inventor: Daniel L. Fringer
  • Patent number: 5150524
    Abstract: Presented is a safety attachment for a chain saw that is selectively attachable or detachable from the guide blade of the chain saw to provide a deflector that projects below the lower reach of the chain and functions to intercept small diameter flexible branches that are drawn rearwardly toward the operator by the chain.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: September 29, 1992
    Inventor: James A. Hall
  • Patent number: 4939843
    Abstract: A portable handheld circular saw having a C-shaped handgrip housing that is attached to the rear end of a motor housing. A trigger switch is mounted in the handgrip housing and a first pair of electrical wires have one of their ends connected to the input side of the trigger switch. The opposite ends of the first pair of electrical wires would have a male electrical connector secured thereto. A second pair of electrical wires has one of their ends connected to the output side of the trigger switch and their opposite ends connected to an electric motor in the motor housing. A third pair of electrical wires have one of their ends connected to the input side of the trigger switch and their opposite ends connected to an auxiliary female electrical socket that is installed in an aperture that has been formed in either the motor housing or the handgrip housing.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: July 10, 1990
    Inventor: Ronald S. Rogers