With Work-engaging Member Patents (Class 30/371)
  • Patent number: 11485039
    Abstract: A stop has an elongate form between a base and a tip, with the base configured to be attachable to a chainsaw bar closer to a free end of the bar then to a housing of the chainsaw to which the bar is mounted. The stop extends below a lower edge of the bar. Bolts or other fasteners pass through holes in the stop and through holes in the bar for attachment. Positioning of the stop separates a tip space from a main space where chain teeth can cut wooden material. Smaller branches can conveniently be cut in the tip space while larger wooden material can be cut in the main space. The stop is configured to include clearance for the chain to pass thereby, such as by including standoffs in the stop adjacent to holes at the base, or by providing a clearance groove or clearance bend.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: November 1, 2022
    Inventor: Arthur H. Krugler
  • Patent number: 11179734
    Abstract: The present disclosure is directed to a shower assembly in which a handheld shower is removably coupled to a showerhead, where the showerhead has a holder configured to retain the handheld shower. The handheld shower can be inserted into the holder in different ways, while the handheld shower can be removed by first pivoting the handheld shower within the recess followed by extraction from the recess.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: November 23, 2021
    Assignee: Delta Faucet Company
    Inventors: David Lee, ShengJun Du, Lei Wang, ShengChao Dai, ZhaoYi Zhuo, Martin Jennings Kimbell, Michael Alan Miller
  • Patent number: 11065700
    Abstract: Post notch forming tool mounted on a handheld saw blade for forming a notch in a post end. The tool has a base, a handle, and two L-shaped members with bolt assemblies for attaching the tool to the saw blade. The base has a first extended lip which slides downwardly along the post's outer surface to guide the tool to form a 3-inch notch. A spacer member is selectively attached to the L-shaped members and has a second extended lip which slides downwardly along the post's outer surface to guide the tool to form a 1½ inch notch. Method steps include using the power saw blade to form a transverse cut intersecting the longitudinal axis, using the extended lip of the base to form a 3-inch notch, or attaching the spacer member and using its extended lip to form a 1½ inch notch in the post's outer surface.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: July 20, 2021
    Inventor: John L. Chipman
  • Patent number: 10918565
    Abstract: A percussive massage device that includes a housing, an electrical source, a motor positioned in the housing, a switch for activating the motor, and a push rod assembly operatively connected to the motor and configured to reciprocate in response to activation of the motor. The housing includes first, second and third handle portions that cooperate to define a handle opening, wherein the first handle portion defines a first axis, the second handle portion defines a second axis and the third handle portion defines a third axis, and wherein the first, second and third axes cooperate to form a triangle.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: February 16, 2021
    Assignee: THERAGUN, INC.
    Inventors: Jason Wersland, Benjamin Nazarian, Jaime Sanchez Solana, Harald Quintus-Bosz, Anthony Parker, Chris McCaslin
  • Patent number: 10875107
    Abstract: A circular saw machine capable of suppressing a cutting-bending of a circular saw blade during cutting, and improving processing accuracy for a cutting surface of a workpiece, regardless of a size of a width of the workpiece. A circular saw machine has: a processing head capable of moving in a cutting direction and its opposite direction and having a circular saw blade capable of rotating; and a movable saw blade guide set provided to be movable in the cutting direction and the opposite direction on the processing head, for guiding to pinch a body part of the circular saw blade on a diameter direction inner side of a cutting region in the circular saw blade. The movable saw blade guide set is configured to move relatively with respect to the processing head in the opposite direction, in coordination with a movement in the cutting direction of said processing head.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: December 29, 2020
    Assignees: AMADA HOLDINGS CO., LTD., AMADA MACHINE TOOLS CO., LTD.
    Inventors: Minoru Goto, Tomoyuki Shiga, Yuichi Okamoto
  • Patent number: 10875108
    Abstract: A miter saw includes a base assembly and a saw unit pivotably coupled to the base assembly. The saw unit includes a motor for driving a saw blade about a rotational axis, a handle, a trigger coupled to the handle and moveable between a first position in which the motor is deactivated, and a second position in which the motor is activated to drive the saw blade, and a trigger lock pivotably coupled to the trigger for movement therewith to prevent movement of the trigger from the first position to the second position.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: December 29, 2020
    Assignee: TTI (MACAO COMMERCIAL OFFSHORE) LIMITED
    Inventor: Michael Hart
  • Patent number: 10830317
    Abstract: Ratchet mill assemblies to permit precise horizontal cutting, one ratchet mill assembly comprising: a shaft with polygonal cross-section, wherein the shaft with polygonal cross-section can rotate and is supported by bearing brackets where each bearing bracket is attached to an end bracket; a handle bar coupled to end brackets by a handle boss on each end bracket; two pinion sprockets coupled to the shaft with polygonal cross-section; and two depth posts, each depth post having depth markings, and each depth post having a corresponding end bracket held in place on the corresponding depth post by a post clamp, wherein at least one post clamp is secured and tightened by way of a half U-bolt and a toggle lock clamp, wherein each pinion sprocket engages rack holes on a corresponding depth post to allow movement of a corresponding end bracket up and down the corresponding depth post.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: November 10, 2020
    Assignee: Granberg Pump and Meter Ltd.
    Inventors: Erik Granberg, Marc A. Magarin
  • Patent number: 10315328
    Abstract: A centrifugal water pump system provided to a chainsaw comprises a water pump head with a suction pipe and a discharge pipe, a coupling device configured to operably connect the chainsaw bar to the water pump head, and chainsaw accessories including stabilizer spikes, and a throttle control.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: June 11, 2019
    Assignee: Trigger Point Innovations, LLC
    Inventors: Blake Catlin Lindsay, Dillon Michael Glover
  • Patent number: 10307886
    Abstract: A power tool that drives rotary cutting element has a retractable guard for the cutting element, and a guard control apparatus allows a user to maintain the guard in a retracted position during operation of the power tool. The guard control apparatus includes an auxiliary handle fastened to the housing of the power tool, and latching elements linked to a spring-biased lever mounted in the auxiliary handle for selectively and temporarily retaining the retractable portion of the guard in a retracted position to enable plunge and other complex cutting operations. Maintaining the retractable portion of the guard in the retracted position during operation of the power tool thereby occupies both hands of the user. This not only helps the user stabilize and accurately control the power tool, but also keeps both of the user's hands safely away from the exposed cutting element in the event of a sudden kickback.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: June 4, 2019
    Assignee: G.A.W. Inc.
    Inventors: Robert Arthur, Nicholas J. Russell
  • Patent number: 10245752
    Abstract: Examples herein include a chainsaw bar shield and a method for using a chainsaw bar shield. A chainsaw bar shield comprises a bar shield arm extending from at least one securing mechanism for engaging and pinching a chainsaw bar extending from a chainsaw housing. The securing mechanism offsets the bar shield arm from a chainsaw chain extending from the chainsaw housing and, thereby, protects a user by separating the user from the chainsaw chain during maintenance of a chainsaw. Other examples of a chainsaw bar shield comprise an enclosure secured to a chainsaw bar which is offset from and substantially encloses a chainsaw chain extending from a chainsaw housing.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: April 2, 2019
    Inventors: Tom J. Zeno, Michele S. Zeno
  • Patent number: 10173339
    Abstract: A machine tool separating device, in particular on a handheld machine tool separating device, includes at least one cutting strand and at least one guide unit, which form a self-contained system. The guide unit comprises at least one main guide unit element and/or at least one cutting strand holding unit, wherein at least the main guide unit element and/or the cutting strand holding unit has at least two guide surfaces, which have different alignments in relation to one another and which, when mounted, are provided to guide the cutting strand.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: January 8, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Rudolf Fuchs, Petr Grulich, Uwe Engelfried
  • Patent number: 9844824
    Abstract: A machine tool system comprises at least one portable machine tool and at least one separating device for a machine tool, which includes at least one cutting strand and at least one guide unit for guiding the cutting strand, said guide unit forming with the cutting strand a closed system. The machine tool system comprises at least one cutting edge guide unit.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: December 19, 2017
    Assignee: Robert Bosch GmbH
    Inventor: Rudolf Fuchs
  • Patent number: 9038277
    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: Grant
    Filed: June 3, 2009
    Date of Patent: May 26, 2015
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Michael S. Steele, Timothy Kenney, Steven F. Thiel
  • Patent number: 8776383
    Abstract: A reciprocating saw can include a housing and a motor disposed in the housing. A blade retaining mechanism can receive a saw blade. A drive mechanism can translate rotational motion of the motor into reciprocating motion of the blade retaining mechanism. A clamp assembly can include first and second shoes that are coupled to the housing. The first shoe can have a first shoe body that includes a first material facing surface. The second shoe can include a second material facing surface that opposes the first material facing surface and that defines a clamping distance therebetween. At least one of the first and second shoes is selectively adjustable relative to the housing, such that the clamping distance can be altered. One of the first or second shoe bodies can have a third material facing surface that comprises an arcuate section defining a radius.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: July 15, 2014
    Assignee: Black & Decker Inc.
    Inventors: Oleksiy P. Sergyeyenko, David C. Campbell, Brent A. Kuehne
  • Patent number: 8726526
    Abstract: A portable cutting machine is provided with a cutting machine main body, a surface plate rotatably supported by the cutting machine main body, a saw blade supported by the cutting machine main body rotatably around a first axis, and a lower guard supported by the cutting machine main body rotatably around a second axis. The first axis is located on one side of the surface plate. A part of the saw blade passes through an opening portion formed to penetrate through the surface plate and is exposed to the other side of the surface plate. The part of the saw blade exposed to the other side is covered by the lower guard. The first axis is parallel to the second axis. The first axis is located closer to a side of the surface plate than the second axis.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: May 20, 2014
    Assignees: Max Co., Ltd., Ryobi Ltd.
    Inventors: Kazunobu Yoshimura, Tomofumi Ichiba, Takuma Nonaka, Atsuhito Okada
  • Publication number: 20140075765
    Abstract: A machine tool system comprises at least one portable machine tool and at least one separating device for a machine tool, which includes at least one cutting strand and at least one guide unit for guiding the cutting strand, said guide unit forming with the cutting strand a closed system. The machine tool system comprises at least one cutting edge guide unit.
    Type: Application
    Filed: March 2, 2012
    Publication date: March 20, 2014
    Applicant: Robert Bosch GmbH
    Inventor: Rudolf Fuchs
  • Patent number: 8667694
    Abstract: A power tool includes a power source, a speed change mechanism and a tip tool wherein the speed change mechanism has first and second rotating shafts arranged in parallel, a first power transmission passage equipped with a first gear train and a first clutch, and a second power transmission passage equipped with a second gear train and a second clutch. The speed change mechanism is constituted to switch the transmission passage between the first power transmission passage and the second power transmission passage while keeping the first and second gear trains in meshed state by switching the first and second clutches between power transmission state and power interruption state depending on a load applied to the tip tool.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: March 11, 2014
    Assignee: Makita Corporation
    Inventors: Manabu Tokunaga, Ryu Hashimoto
  • Publication number: 20140053418
    Abstract: A machine tool system comprises at least one machine tool separating device, which has at least one cutting strand and at least one guide unit for guiding the cutting strand, which together form a self-contained system, and at least one portable machine tool, which comprises a machine tool housing and at least one coupling device for coupling the machine tool separating device. The portable machine tool comprises at least one pad unit to be placed on a workpiece, wherein the pad unit and the machine tool housing are mounted such that they can be moved relative to each other.
    Type: Application
    Filed: March 2, 2012
    Publication date: February 27, 2014
    Applicant: Robert Bosch GmbH
    Inventor: Rudolf Fuchs
  • Publication number: 20140047721
    Abstract: The disclosure relates to a portable machine tool, in particular a hand-held machine tool, comprising at least one coupling device which is designed to be coupled to a machine tool separation device having at least one cutting unit and at least one guide unit for guiding the cutting unit. According to the disclosure, the portable machine tool comprises at least one machine tool stabilizing device which comprises, in an area outside the coupling device, at least one stabilizing element having at least one support surface for stabilizing the machine tool separation device.
    Type: Application
    Filed: March 2, 2012
    Publication date: February 20, 2014
    Applicant: Robert Bosch GmbH
    Inventor: Rudolf Fuchs
  • Patent number: 8640345
    Abstract: A saw assembly includes a housing, a drive member, a motor, a switch, a trigger, a lockout lever, a stop structure, and a lock-on member. The housing defines an interior space, and has a forward housing portion defining a forward housing opening and a rearward housing portion defining a rearward housing opening. The drive member extends through the forward housing opening, and is configured to be moved in a repeating pattern. The motor is positioned in the interior space and is configured to move the drive member in the repeating pattern. The switch is positioned in the interior space and has an actuator movable between an actuated and a deactuated position. When the switch is in the actuated position, the motor moves the drive member in the repeating pattern, and when the switch is in the deactuated position, the motor does not move the drive member in the repeating pattern.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: February 4, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Jaime Moreno
  • Publication number: 20130340581
    Abstract: A baseplate for a handheld power tool has an underside configured to be guided along the surface of a workpiece when working the workpiece. The baseplate is configured to be made to vibrate by a vibration-inducing device.
    Type: Application
    Filed: November 23, 2011
    Publication date: December 26, 2013
    Applicant: Robert Bosch GmbH
    Inventors: Stefano Delfini, Heiner Storck
  • Publication number: 20130333231
    Abstract: A reciprocating power tool has a shoe that can be adjusted while the reciprocating power tool is in use. The reciprocating power tool has a main body, a first grip, a second grip moveable with respect to the main body, and a shoe for engaging a workpiece. The shoe is coupled to the second grip such that the shoe moves with the second grip for adjustment of a position of the shoe when the second grip is moved with respect to the main body.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 19, 2013
    Inventor: David A. Selby
  • Publication number: 20130152407
    Abstract: A power tool for cutting a workpiece including a casing, an auxiliary handle assembly extending from the casing, a motor disposed at least partially in the casing, and a drive transmission operably coupled to the motor. The drive transmission outputs a driving force in response to an input from the motor. A spindle locking mechanism is provided that is selectively positionable between a retracted position spaced apart from the drive transmission and a locked position engaging the drive transmission. The spindle lock mechanism thereby prevents rotation of the drive transmission in response to actuation of a pad member. The pad member can be positioned adjacent to the auxiliary handle to permit single-handed holding of the power tool and actuation of the pad member.
    Type: Application
    Filed: June 22, 2012
    Publication date: June 20, 2013
    Applicant: BLACK & DECKER INC.
    Inventors: David L. Wikle, James R. Parks, Richard C. Nickels, JR.
  • Publication number: 20130125405
    Abstract: A saw system in one embodiment includes a base including a rail system, a table positionable on the rail system and including a work piece support surface defining a support plane, and a roller system attached to the table and configured to engage the rail system when the table is positioned on the rail system, the roller system including a helical actuator assembly configured such that rotational movement of an actuator rod from a first position to a second position causes at least one roller to move along a locking axis between a third position whereat the at least one roller is not engaged with the rail system and a fourth position whereat the at least one roller is engaged with the rail system, wherein the locking axis is substantially parallel to the support plane when the table is positioned on the rail system.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Applicants: ROBERT BOSCH GMBH, ROBERT BOSCH TOOL CORPORATION
    Inventor: Greg Chaganos
  • Publication number: 20130061480
    Abstract: A jigsaw may include a housing, a control member, a shoe member and a keel. The housing contains a motor and include a handle. The control member is moveable relative to the housing between at least a first position that implements a curve-cutting mode and a second position that implements a straight-cutting mode. The shoe member is connected to the housing and includes a bottom surface facing away from the housing. The keel is operable in a deployed configuration in which the keel protrudes through the bottom surface of the shoe member and a stowed configuration in which the keel does not protrude through the bottom surface of the shoe member. Relative motion between the shoe and the keel allows the keel to be in the deployed configuration when the control member is in the second position and the stowed configuration when the control member is in the first position.
    Type: Application
    Filed: September 12, 2011
    Publication date: March 14, 2013
    Applicant: BLACK & DECKER INC.
    Inventors: Ashok Samuel Baskar, Steven McClaskey, Frank A. DeSantis, Zhang Haitao
  • Patent number: 8365419
    Abstract: A power tool having an elongated housing with a nose portion, an output shaft to which a cutting blade that oscillates through a small angle is attached, the attachment comprising, an accessory interface removably mounted to the nose portion of the housing and a depth guide attachment rotatably mounted to the accessory interface, the depth guide attachment further comprising a relatively thin body portion having a generally circular first opening with a center axis generally parallel to the output shaft, the body portion fitting on the accessory interface and being rotatable thereon and having a second circular opening transverse to the first opening center axis, a depth guide member adjustably mounted on the body portion and having an offset outer end portion, and a locking member configured to secure the depth guide member in a desired position.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: February 5, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Walter Bernardi, Leroy McCray, Michael E. Landt
  • Publication number: 20120240418
    Abstract: A pneumatically powered pole saw is provided, the pole saw having gas actuated main valves configured for movement between first positions and second positions wherein the gas actuated main valves are located in a main valves assembly fluidly coupled to the piston chamber; and a first pilot valve is configured to send actuating gas through a conduit to the main valves assembly and a second pilot valve is configured to send actuating gas through a conduit to the main valves assembly wherein the cutting blade moves in opposite directions in response to the actuating gas of the first and second pilot valves.
    Type: Application
    Filed: April 16, 2012
    Publication date: September 27, 2012
    Inventor: Ronald Alan Gatten
  • Publication number: 20120204430
    Abstract: An undercut saw including a motor, a drive shaft rotated by the motor, a blade mount mechanically linked to the drive shaft, the blade mount allowing a saw blade to be mounted and a fixed blade guard circumscribing a portion of the saw blade. The fixed blade guard includes a top plate and a height adjustment skirt in telescoping attachment joined by fasteners. A guide washer with a fastener assembly is configured to move up and down in a slot on the height adjustment skirt. Turning a lead threaded member raises and lowers the top plate.
    Type: Application
    Filed: April 25, 2012
    Publication date: August 16, 2012
    Applicant: CRAIN CUTTER COMPANY, INC.
    Inventors: Lance D. Crain, Tan D. Nguyen
  • Publication number: 20120198708
    Abstract: A cutting tool includes a base and a tool unit coupled to the base and movable together with the base in a cut proceeding direction for cutting a workpiece. The tool unit includes an electric motor having an output shaft, a reduction gear section, and a spindle having a cutting blade mounted thereto. The reduction gear section is coupled between the output shaft and the spindle, so that the rotation of the output shaft is transmitted to the spindle via the reduction gear section. The reduction gear section has an intermediate shaft, a first reduction gear mechanism provided between the output shaft and the intermediate shaft, and a second reduction gear mechanism provided between the intermediate shaft and the spindle. The intermediate shaft is positioned forwardly of the output shaft and the spindle in the cut proceeding direction at least when the tool unit is positioned for cutting the workpiece.
    Type: Application
    Filed: February 6, 2012
    Publication date: August 9, 2012
    Applicant: MAKITA CORPORATION
    Inventors: Tsutomu NAITO, Hirotomo INAYOSHI
  • Patent number: 8186067
    Abstract: A portable circular saw includes a housing, including a motor, a circular saw blade, a saw cover, and a light irradiation unit. The blade is driven by the motor for cutting in a cutting direction. The circular saw blade has one side surface and another side surface. The saw cover is provided to the housing for partially covering the circular saw blade. The light irradiation unit is provided on the saw cover. The light irradiation unit includes a first irradiation device located on the one side surface side of the blade and a second irradiation device located on the another side surface side of the blade for emitting a light to illuminate a region including a leading end portion of the circular saw blade and a spot on the cutting object. The spot is ahead of the leading end portion in the cutting direction.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: May 29, 2012
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Miyoji Onose, Hideaki Terashima, Shinji Takano
  • Patent number: 8181559
    Abstract: The present invention is an attachable rolling plate assembly which can be attached as a single unit to a portable cutting tool to facilitate the safe rolling movement of the portable cutting tool on the workpiece. The invention comprises a frame assembly formed from a single piece of molded material such as fiber enriched plastic having a pair of oppositely disposed longitudinal sidewalls with stabilizer fins extending therefrom, and a flat base portion having a pair of parallel stabilizer tubes molded therein. The invention further includes an adjustable bevel gear assembly by which the angle of orientation of the cutting blade can be quickly changed. The invention also includes a cutting guide assembly to facilitate a straight cut, reduce torsional rotation of the saw blade and reduce kickback of the saw.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: May 22, 2012
    Assignee: Woodman Tools, LLC
    Inventor: Mathias Am Ende
  • Patent number: 8176642
    Abstract: A linear gauging device when attached to a chain saw bar will facilitate in the accurate measurement and swift successive cutting of a log into pre-determined uniform lengths of firewood. A chainsaw attachment consisting of an elongated resilient rod having one end fitted with a stabilizing cup and a locking stud, when extended through a single bore in the chainsaw bar, allows the effortless attachment to any chain saw bar. The locking stud fitted with a bore to receive a modified cotter pin thus performing a failsafe means of attachment. The rod is extended perpendicular to the cutting plane and lengthwise to the log. The opposing end of the rod is fitted with a large disc, when firmly locked against the end of the log, will position the chain saw cutting bar in the exact location of the measured length of cut. In contrast to the fixed measured length of the gauging rod, a variable length rod can be manufactured consisting of two rods, a hollowed outer rod and a telescoping inter rod.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: May 15, 2012
    Inventor: Ralph T. Clark
  • Publication number: 20120110863
    Abstract: The present invention discloses a vegetation pruning device comprising a main body; a cutting element; a guide bar for supporting the cutting element; a motor for driving the cutting element; a first handle assembly; a second handle assembly; a locking mechanism for detachably securing the second handle assembly to the first handle assembly; a connecting mechanism being positioned between the first handle assembly and the guide bar; the first handle assembly or the second handle assembly being operable to move linearly toward to or away from the guide bar, the connecting mechanism is provided to change the linearly movement of the first or the second handle assembly to the pivoting of the guide bar. Both of the first handle assembly and the second handle assembly are moving linearly, which makes the operator feel comfortable in any working instance.
    Type: Application
    Filed: July 16, 2010
    Publication date: May 10, 2012
    Applicant: Positec Power Tools (Suzhou) Co., Ltd.
    Inventors: Warren Brown, Harry Szommer, Graham Gerhardt
  • Patent number: 8156654
    Abstract: The invention provides a chain saw attachment for unobstructed cutting of smaller objects with diameters less than three inches and larger objects with diameters greater than three inches. The attachment includes a set of prongs that vertically extend at an acute angle from a cover above the cutting teeth of the chain saw blade to a specified distance below the blade. The prongs stabilize small objects from whipping and dragging when engaged by the cutting teeth and facilitate the cutting of brush with diameter equal to height of the blade. Moreover, the cover does not extend the full length of the blade to allow for fully unobstructed cuts using the uncovered section of the blade. The cover increase safe operation of the chain saw and distributes stress from a particular prong over the entire attachment.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: April 17, 2012
    Inventors: Thomas B. Reed, Shivayam Ellis
  • Patent number: 8146258
    Abstract: A saw can include a guide for guiding a saw blade. In one embodiment, the guide can be moveable between an active position wherein the guide guides a saw blade and an inactive position wherein the guide does not guide the saw blade. In one embodiment, the guide in the active position limits lateral movement of the blade, and the guide defines a clearance between the guide and the blade, the clearance having a height greater than a height of the blade, the saw being configured so that during cutting at least a portion of the article being cut can be accommodated within the clearance without contacting the guide.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: April 3, 2012
    Inventor: Paul Shafer
  • Patent number: 8047113
    Abstract: An apparatus and method for a solution that permits a carpenter to make exact, on-the-spot time-efficient cross-cuts of their boards while holding the board in one-hand and the circular saw in the other hand.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: November 1, 2011
    Inventor: Chris D. Nilsen
  • Patent number: 8033026
    Abstract: A jigsaw includes a housing containing a motor activated by a trigger assembly. A shoe member is pivotally connected to the housing of the jigsaw and establishes an angle therebetween. The jigsaw includes a keel assembly includes a blade member that generally extends from the housing beyond the shoe member. The keel assembly remains generally in line with the housing as the angle between the shoe member and the housing varies. The jigsaw also includes a latch assembly capable of retaining and releasing the keel assembly from the housing.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: October 11, 2011
    Assignee: Black & Decker Inc.
    Inventors: Louis A. Gibbons, John S. Vantran, Mark E. Robson, Timothy McKay, Brent A. Kuehne, Terry L. Turner, Michael F. Cannaliato, Thomas R. Kaye, Jr.
  • Patent number: 8033205
    Abstract: A roof shingle peeler device which comprises a saw blade, a motor to operate the saw blade, a horizontal arm and skiis to regulate the depth of the saw blade, a wedge to remove the nails and shingles from the roof deck and enable the saw blade to cut the shingles into a predefined section, and a frame to facilitate the transportation of the predefined section of shingles for being received and collected into a bag for disposal. A hoist and return hoist are used to pull the roof shingle peeler device up and down the roof deck from the base to the crest while removing shingles.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: October 11, 2011
    Inventor: Edward J. Cross
  • Patent number: 8015715
    Abstract: A chain saw arrangement for cutting flat sides or kerfs on a round log or timber. The arrangement includes a chain saw housing at a first end of the chain saw. An elongated chain/blade supporting frame extends from the chain saw housing. A multi-tooth chain/blade is movably supported from the elongated frame. A support bracket is secured to one side of the elongated frame for providing restricted support of the chain/blade on a log or timber during cutting of a transverse kerf thereon.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: September 13, 2011
    Inventor: Robert L. Perkins
  • Publication number: 20110214302
    Abstract: A cutting tool includes a tool unit having an electric motor and a rotary cutting blade rotatably driven by the electric motor. The electric motor has a motor housing. The motor housing has a flattened cylindrical configuration, so that a horizontal length of the motor housing is shorter than a vertical length of the motor housing.
    Type: Application
    Filed: March 2, 2011
    Publication date: September 8, 2011
    Applicant: MAKITA CORPORATION
    Inventor: Hirotomo INAYOSHI
  • Publication number: 20110167649
    Abstract: The invention provides a chain saw attachment for unobstructed cutting of smaller objects with diameters less than three inches and larger objects with diameters greater than three inches. The attachment includes a set of prongs that vertically extend at an acute angle from a cover above the cutting teeth of the chain saw blade to a specified distance below the blade. The prongs stabilize small objects from whipping and dragging when engaged by the cutting teeth and facilitate the cutting of brush with diameter equal to height of the blade. Moreover, the cover does not extend the full length of the blade to allow for fully unobstructed cuts using the uncovered section of the blade. The cover increase safe operation of the chain saw and distributes stress from a particular prong over the entire attachment.
    Type: Application
    Filed: January 11, 2010
    Publication date: July 14, 2011
    Inventors: Thomas B. Reed, Shivayam Ellis
  • Patent number: 7950156
    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: Grant
    Filed: February 19, 2008
    Date of Patent: May 31, 2011
    Assignee: 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
  • Patent number: 7891101
    Abstract: A powered jamb saw is provided which is ideally suited for making corner cuts. A cylindrical housing for the shaft of the circular saw blade is mounted in a split bushing tensioned by a threaded bolt secured to and for rotation by a handle positioned so as to permit the workman to use both hands to position the jamb saw during its use in making cuts.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: February 22, 2011
    Inventor: Michael L. Brady
  • Patent number: 7861416
    Abstract: A linear gauging device when attached to a chain saw bar will facilitate in the accurate measurement and swift successive cutting of a log into pre-determined uniform lengths of firewood. A chainsaw attachment consisting of an elongated resilient rod having one end fitted with a powerful magnet and an anti-slip locking stud, when extended through a single bore in the chainsaw bar, allows the effortless attachment to any chain saw bar. The locking stud fitted with a bore to receive a modified cotter pin thus performing a failsafe means of attachment. The said rod extended perpendicular to the cutting plane and lengthwise to the log. The opposing end of the rod is fitted with a large disc, when firmly locked against the end of the log, will position the chain saw cutting bar in the exact location of the measured length of cut. In contrast to the fixed measured length of the gauging rod, a variable length rod can be manufactured consisting of two rods, a hollowed outer rod and a telescoping inter rod.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: January 4, 2011
    Inventor: Ralph T. Clark
  • Patent number: 7856723
    Abstract: A footplate for a power tool for guiding the tool along a guide, the footplate having on its lower surface at least one dual-restriction , wherein the first part of the dual-restriction is for engaging a rail extending in a longitudinal direction of a first guide on the upper surface of said first guide and the second part of the dual-restriction is for engaging a rail extending in a longitudinal direction of a second different guide on the upper surface of said second guide, where the first and second parts of the or each dual-restriction each has a fixed side wall, and where the first and second parts of the or each dual-restriction have an adjustable side wall arranged opposite to a respective fixed side wall.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: December 28, 2010
    Assignee: Black & Decker Inc.
    Inventors: Roger Thomas, Scott Keenlyside, Joanne Rogers
  • Patent number: 7841092
    Abstract: A hand-held circular saw designed for making square cuts on workpieces. The saw is equipped with a pair of retractable guide pins located near the rear of the blade; when both pins touch the front edge of the workpiece the saw's blade is automatically perpendicular to it. The saw is also equipped with at least one torsion spring that temporarily holds the saw's blade above the workpiece. Without moving the saw's base, the user turns on the saw, and pressing downwardly on its handle, lowers the blade into the workpiece, making a square cut with the accuracy of a cut-off saw. The guide pins can also be automatically or manually retracted to convert the improved saw back to a conventional saw.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: November 30, 2010
    Inventor: Klaus Dern
  • Patent number: 7784385
    Abstract: A splitter for installation behind a rotating blade of a table saw to prevent contact between the kerf of a work piece and the upwardly moving rear portion of the saw blade. The splitter 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 work piece contacting surfaces with incremental amounts of offset relative to the side of the kerf may be selected to provide a desired degree of interference and resulting force between the splitter and the work piece.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: August 31, 2010
    Inventor: Henry Wang
  • Patent number: 7739802
    Abstract: An undercut saw including a housing, a motor within said housing, a drive shaft rotated by said motor, and a blade mount mechanically linked to said shaft such that a circular saw blade mounted on said mount is rotated when the motor rotates the drive shaft. A fixed blade guard circumscribes a portion of the blade and allows selectable height adjustment of the blade. A stabilization bar on the fixed blade guard may be extended to make the device more stable. On the underside of the fixed blade guard a dust channel allows dust to be swept by the rotating blade into a dust port. The dust channel allows positioning of the dust port away from the leading edges of the fixed blade guard.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: June 22, 2010
    Assignee: Crain Cutter Company, Inc.
    Inventors: Lance D. Crain, Tan D. Nguyen
  • Patent number: 7739801
    Abstract: An undercut saw including a housing, a motor within said housing, a drive shaft rotated by said motor, and a blade mount mechanically linked to said shaft such that a circular saw blade mounted on said mount is rotated when the motor rotates the drive shaft. A fixed blade guard circumscribes a portion of the blade and allows selectable height adjustment of the blade. A stabilization bar on the fixed blade guard may be extended to make the device more stable. On the underside of the fixed blade guard a dust channel allows dust to be swept by the rotating blade into a dust port. The dust channel allows positioning of the dust port away from the leading edges of the fixed blade guard.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: June 22, 2010
    Assignee: Crain Cutter Company, Inc.
    Inventors: Lance D. Crain, Tan D. Nguyen
  • Publication number: 20100088903
    Abstract: A laser weld cutter assembly that includes a right angle driver comprising: a motor contained within a motor housing; a handle assembly; a burr; and a cutting guide assembly comprising a support element attached to the motor housing, a base plate assembly pivotally attached to the support element, a cutting depth adjustment screw engaged with the base plate assembly and the support element, and a guard attached to the base plate assembly; and wherein the operator positions the output shaft assembly perpendicular to the direction of the weld to be cut, and moves the laser weld cutter assembly in a forward direction away from the operator, the rotation of the burr in the clockwise direction undercutting the material to be removed and providing ease in guiding the burr along the laser weld to be removed.
    Type: Application
    Filed: January 13, 2008
    Publication date: April 15, 2010
    Inventor: Max W.A. Spitznagel