Including Cam Patents (Class 72/409.1)
  • Patent number: 9987760
    Abstract: The invention relates to manual pliers (1) which comprise a fixed cutting jaw (26) and a movable cutting jaw (23). The manual pliers (1) comprise a first maximal opening position in which it is possible to run through a working stroke part caused by the closure of the hand levers (2). In the first maximal opening position the latching lever (16) and a pushing lever (19) engage with a toothing (32) of the movable cutting jaw (23). With the actuation of the latching lever (16) it is possible to transfer the manual pliers into a second maximal opening position in which the opening angle of the hand levers (2) is larger than in the first maximal opening position. In the second maximal opening position the latching lever (16) and the pushing lever (19) do not engage with the toothing (32) of the movable cutting jaw (23). For the definition of the two opening positions, two stops are used which are formed by the latching lever (16) and a swivel bolt of the latching lever (16).
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: June 5, 2018
    Assignee: WEZAG GMBH WERKZEUGFABRIK
    Inventor: Roman Zinser
  • Patent number: 9923326
    Abstract: The present invention relates to a lock mechanism for a hand tool having two handles, which comprises: a latch and a retainer for retaining the latch. The latch comprises: a disc and a shaft passing through and fixed with the disc. The shaft is coaxial with the disc. The lock mechanism is disposed within the hand tool.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: March 20, 2018
    Assignee: Sullstar Technologies, Inc.
    Inventor: Robert W Sullivan
  • Patent number: 9142931
    Abstract: A crimp tool is provided for crimping a workpiece. The crimp tool includes a crimp head having a crimp jaw. The crimp jaw includes opposing upper and lower jaw members arranged along a crimp axis. The lower jaw member is movable along the crimp axis relative to the upper jaw member. A handle is mounted to the crimp head. The handle includes a frame and a lever rotatably mounted on the frame for rotation relative to the frame between an open position and a closed position. A cam is operatively connected between the lever of the handle and the lower jaw member of the crimp head. The cam is configured to translate rotational movement of the lever relative to the frame into movement of the lower jaw member along the crimp axis.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: September 22, 2015
    Assignee: TYCO ELECTRONICS CORPORATION
    Inventor: Eric D. Springston, II
  • Publication number: 20150047410
    Abstract: A bending machine with a cam made up of two articulated arms, comprising a main roller that is coaxial with the axis of articulation of the arms, the end of the short portion of each one of the arms having means for exerting a bending force on a rod, wherein the means are made up of eyelets, each one of the eyelets being mounted on the end of the short portion of one of the arms in a rotatably mobile manner about an axis parallel to the axis of the main roller.
    Type: Application
    Filed: April 2, 2013
    Publication date: February 19, 2015
    Inventors: Dominique Petit, Jean Charles Le Huec
  • Publication number: 20130227842
    Abstract: The tool is provided with a pair of right and left cutting blades, a pair of right and left operating handles connected to said blades via pivots, and connecting pins that connects the blades to each other, and is configured so that: the operating handles are disposed so as to abut in the same plane and the opposing surfaces thereof form cam contact surfaces that directly contact each other; between the pivots and the pivot pins of the other operating handles, two connections fittings that connect the right and left handles on the front and back surfaces are disposed diagonally in a criss-cross shape, connecting the respective upper and lower ends to the pivots and the pivot pins; and the criss-cross position of the connection fittings is determined by the positioning of the pivot pins.
    Type: Application
    Filed: October 21, 2011
    Publication date: September 5, 2013
    Applicant: Minoru Kogyo Co., Ltd.
    Inventor: Isao Takahashi
  • Publication number: 20120260714
    Abstract: A hand operated crimping tool comprising a body arranged between a distal end and a proximal end of the crimping tool, a tool head arranged distally on the crimping tool, and handles arranged proximally on the crimping tool, where at least one handle is arranged pivotally to the body, and where the tool head is arranged axially slidable along the body. A distal crimping die is arranged at the tool head and a proximal crimping die is arranged at the body between which crimping dies a workpiece is to be crimped. The movement of the handles is connected to the movement of the tool head by a mechanism, whereby the tool head is movable between a distal non-crimping position and a proximal crimping position depending on the relative position of the tool handles.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 18, 2012
    Inventors: John Hutchfield, Lars Olov Persson, Niklas Jonasson
  • Patent number: 8241029
    Abstract: A low-cost crimping tool is provided for crimping non-metallic tubing such as PEX tubing connections. The tool includes two primary pieces which fit together forming an integral pivot without being pinned together about which the tool may be closed with pliers to form a secure tubing connection.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: August 14, 2012
    Inventor: Bruns Daniel Kidd
  • Patent number: 8113031
    Abstract: The present invention relates to crimping pliers for crimping connecting elements. The crimping pliers comprise crimping jaws building a nest for the connecting element. The crimping jaws are designed and arranged for being moved in radial direction versus a longitudinal axis of the nest for applying radial crimping forces upon the connecting element. Hand levers are provided for manually applying the crimping forces and causing the movement of said crimping jaws. The hand levers are located in a plane. The plane is aligned with the longitudinal axis of said nest and divided by the longitudinal axis into two half-planes. Both of said hand levers are located in one and the same half-plane. A transfer or transmission unit transfers a translational activation along the longitudinal axis in the force flow between said hand levers and said crimping jaws into a rotational activation around the longitudinal axis.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: February 14, 2012
    Assignee: Wezag GmbH Werkzeugfabrik
    Inventors: Kurt Battenfeld, Thomas Glockseisen
  • Patent number: 8079242
    Abstract: A crimping tool including a punch carrier, a plurality of punches movable in translation in radial housings of the punch carrier, a thrust member having an inside face co-operating with the outer ends of the punches, the thrust member being pivotally mounted relative to the punch carrier, such that pivoting of the thrust member causes a contact to be crimped, a tool body having two pivotal handles for causing the thrust member and the punch carrier to pivot mutually, and a member for adjusting the stroke of the punches, a sensor sensitive to the position of the member for adjusting the stroke of the punches, a sensor sensitive to an identity signal from a contact positioning tool, and a memory associated with the position sensor and with the identity sensor and arranged to record the data delivered by the sensors and/or to deliver the data to a data processor unit.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: December 20, 2011
    Assignee: Eurocopter
    Inventors: Alain Pacaud, Philippe Tontic
  • Publication number: 20110197647
    Abstract: A crimp tool is provided for crimping a workpiece. The crimp tool includes a crimp head having a crimp jaw. The crimp jaw includes opposing upper and lower jaw members arranged along a crimp axis. The lower jaw member is movable along the crimp axis relative to the upper jaw member. A handle is mounted to the crimp head. The handle includes a frame and a lever rotatably mounted on the frame for rotation relative to the frame between an open position and a closed position. A cam is operatively connected between the lever of the handle and the lower jaw member of the crimp head. The cam is configured to translate rotational movement of the lever relative to the frame into movement of the lower jaw member along the crimp axis.
    Type: Application
    Filed: February 18, 2010
    Publication date: August 18, 2011
    Inventor: Eric D. Springston, II
  • Patent number: 7967602
    Abstract: A pliers for forming orthodontic wires has opposing beaks with complementary wire-forming surfaces that include interfering portions. A hinge mechanism enables the beaks to open and close by rotating about an axis, and also allows a range of axial motion between the beaks sufficient to prevent interference between the wire-forming surfaces as the beaks are closed. By preventing such interference, novel over-bending capabilities can be achieved to form useful bending of low spring rate wire. A spring, such as a Belleville washer, exerts a biasing force parallel to the hinge axis to maintain alignment of the beaks, but allows the required range of axial motion between the beaks to prevent interference.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: June 28, 2011
    Inventor: John Theodore Lindquist
  • Patent number: 7886570
    Abstract: A hand tool comprising first and second jaw members and first and second handle members, the first handle and both jaw members being cooperatively connected by a force multiplying linkage system. A force applied to the first handle drives the linkage system to close the jaws to crimp or cut a work piece. In one embodiment of the invention, a link in the linkage system has a first end movable between first and second positions relative to its first end pivot pin wherein the first and second jaw members close a first distance when the link first end is in the first position and close a second distance when the link first end is in the second position. Other embodiments comprise other step-wise changes in distance between force-bearing pivot locations in the linkage system to close the jaws progressive distances with successive closures of the first and second handles.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: February 15, 2011
    Assignee: MIL3, Inc.
    Inventors: John G. Cleland, Joseph R. Lemmens
  • Patent number: 7878790
    Abstract: A low-cost crimping tool is provided for crimping non-metallic tubing such as PEX tubing connections. The tool includes two primary pieces which fit together forming an integral pivot without being pinned together about which the tool may be closed with pliers to form a secure tubing connection.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: February 1, 2011
    Inventor: Bruns Daniel Kidd
  • Patent number: 7874193
    Abstract: The invention relates to a crimping die (12,14,16,18) and a crimping tool (2) comprising at least three crimping dies (12,14,16,18) that are guided for displacement in the crimping tool (2), where each of the crimping dies (12,14,16,18) have a respective crimping surface (42,44,46,48) and a respective sliding surface (50,52,54,56), where the crimping surfaces (42,44,46,48) together form a crimping opening (36), said crimping surface (42,44,46,48) of each crimping die (12,14,16,18) slidably abutting said sliding surface (50,52,54,56), of an adjacent die, where the crimping dies (12,14,16,18) have pivot points (29,31,33,35) that are arranged movable relative to the body of the crimping tool (2) and where a linkage (11) is arranged to guide the movement of the pivot points (29,31,33,35) of the crimping dies (12,14,16,18) relative to the body (4) of the crimping tool (2) producing a movement between the pivot points (29,31,33,35) of the crimping dies (12,14,16,18) and the body (4) of the crimping tool (2), and wh
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: January 25, 2011
    Assignee: Pressmaster AB
    Inventor: Mats Norin
  • Publication number: 20090266137
    Abstract: The present invention relates to a tool for pipe bending comprising at least two branches (1, 3), at least one link arm (8), at least one former (7), and at least one sliding jaw (9), said at least one former (7) and said at least one sliding jaw (9) being intended to be placed on either side of a pipe (12) to be bent, and said at least one former (7) being fitted to, or constituting a part of, a first branch (1) of said at least two branches (1, 3) at the same time as said at least one sliding jaw (9) being fitted to, or constituting a part of, a second branch (3) of said at least two branches (1, 3). At least one of said at least one former (7) has at least one pipe-positioning index (18, 19), one of which is intended to be placed as close as possible to a corresponding bending-measure index on the pipe (12) when the pipe (12) is placed in the tool in order to be bent. The present invention also relates to a former (7) for use as a part of a tool for pipe bending.
    Type: Application
    Filed: October 24, 2007
    Publication date: October 29, 2009
    Applicant: KAPMAN AB
    Inventors: Marten Andren, Olle Bobjer, Hans Himbert, Stefan Strandberg, Mattias Lovemark, Conny Jansson
  • Patent number: 7596982
    Abstract: An apparatus (100) or repairing dented bearing cages (50) comprises: a first contact surface (122) for contacting an outer diameter of the bearing cage (50); a second contact surface (126) for contacting an inner diameter of the bearing cage (50); a first handle (102); a second handle (104) operatively connected to the first handle (102) via a pivot mechanism (106); a retraction element (108) connected to the second contact surface (126); and an adjustment mechanism (116). The retraction element (108) retracts upon movement of the second handle (104) relative to the first handle (102) to move the second contact surface (126) towards the first contact surface (122) so as to impart a force against a dented region of the bearing cage (50) located between the second contact surface (126) and the first contact surface (122).
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: October 6, 2009
    Assignee: Honeywell International Inc.
    Inventor: Jeffery J. Clark
  • Patent number: 7503201
    Abstract: A hand tool comprising first and second jaw members and first and second handle members, the first handle and both jaw members being cooperatively connected by a force multiplying linkage system. A force applied to the first handle drives the linkage system to close the jaws to crimp or cut a work piece. In one embodiment of the invention, a link in the linkage system has a first end movable between first and second positions relative to its first end pivot pin wherein the first and second jaw members close a first distance when the link first end is in the first position and close a second distance when the link first end is in the second position. Other embodiments comprise other step-wise changes in distance between force-bearing pivot locations in the linkage system to close the jaws progressive distances with successive closures of the first and second handles.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: March 17, 2009
    Assignee: MIL3, Inc.
    Inventors: John G. Cleland, Joseph R. Lemmens
  • Publication number: 20080289394
    Abstract: A jaw arm for an associated compression tool having cam rollers that displace forwardly and rearwardly along an axis to pivot the jaw arm includes a recess and a notch. The recess is disposed adjacent a forward end of the jaw arm. The notch is axially spaced rearwardly from the recess. The recess is configured to receive an associated pipe and an associated coupling for compressing at least one of the associated pipe and the associated coupling to mechanically attach the associated pipe to the associated coupling when the jaw arm is pivotally displaced toward at least one of the associated pipe and the associated coupling. The notch is configured to receive an associated cam roller of the associated compression tool and to retain the associated cam roller to inhibit axial rearward movement of the associated cam roller when the associated cam roller has been received in the notch. A pressing tool and a jaw set incorporating the aforementioned jaw arm is also disclosed.
    Type: Application
    Filed: May 23, 2007
    Publication date: November 27, 2008
    Inventor: Brian A. Mitchell
  • Patent number: 7434440
    Abstract: A heavy-duty hose clamp installation tool is described. A pair of lever arms operates a pair of jaw members to engage a pinch clamp ear. The installation tool includes a pair of jaw members with clamp edges forming a lip for receiving the clamp ears. A pair of extension arms connects the jaw members to a pair of lever arms. The extension arms are pivotally interconnected intermediate the jaw member section so that closing the handle ends of the lever arms translates the jaw members towards a closed position thereof, thus squeezing the clamp ear. Once the ear of the clamp is crimped, an auxiliary form punch is used to flatten the ear, resulting in a tighter clamp configuration.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: October 14, 2008
    Assignee: Murray Corporation
    Inventor: Robert F. Fay
  • Patent number: 7434441
    Abstract: The invention relates to a pair of pressing jaws for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables, the two pressing jaws being disposed for rotation about a common axis and each pressing jaw forming a bearing eye for this purpose. In order to configure a pair of pressing jaws of the type in question in a more functionally advantageous manner, it is proposed that each pressing jaw forms two bearing eyes with coaxial bearing openings, and the bearing eyes are disposed in an interengaging manner in the assembled state.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: October 14, 2008
    Assignee: Gustav Klauke GmbH
    Inventor: Egbert Frenken
  • Patent number: 7325436
    Abstract: An expanding tool includes a housing having a passage, an expanding device attached to the housing and having a number of expanding segments for engaging with and for expanding a pipe, an expanding mandrel is slidably engaged in the housing and includes a conically tapering end engageable into a conical bore of the expanding segments for moving the expanding segments to expand the pipe, an actuating lever includes an upper portion engageable into a groove of the expanding mandrel and pivotally attached to the housing with a shaft, the actuating lever includes two cam members for moving the expanding mandrel to expand the pipe, and for retracting the expanding mandrel from the housing.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: February 5, 2008
    Inventor: Enzo Cheng
  • Patent number: 7243525
    Abstract: A hand rivet squeezer with adjustable handles includes a riveting head body, and C-shaped anvil yoke and stationary and lever swing-arm handles attached to the body. A mechanical linkage inside the body converts pivoting forces applied to the lever swing-arm into axial forces applied to a plunger pushing it from inside the body into the C-shaped yoke. The preferred mechanical linkage is a rack-and-pinion type design or alternatively a cam between the lever swing arm and the plunger. The handles are adjustable such that their angle relative the rivet head body can be varied depending on the access available around a solid rivet to be installed. The handles are engaged or locked to the body but may be unlocked or slidably disengaged and pivoted up to 90 degrees relative the body.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: July 17, 2007
    Inventor: Charles Galluzo
  • Patent number: 7191634
    Abstract: A unique tool for removing dents from sheet metal that is best accessed or can only be accessed from the same side of the metal surface from which the dent was originally created. The tool has a lower plate and an upper plate. The lower plate has a lower side proximate to a dent in a surface to be repaired and an upper side. The upper plate has a lower side proximate to the upper side of the lower plate and an upper side. The tool has a plurality of pins slidably extending through the lower and upper plates, the pins having heads proximate to said upper side of said upper plate and lower attachment ends adapted for receiving an adhesive. The tool further has a displacing member for selectively displacing the upper plate away from the lower plate so that the upper side of the upper plate will push the heads of the pins upwardly as the upper plate is displaced, causing the lower attachment ends to move upwardly.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: March 20, 2007
    Inventor: Cesar A. Borgos, III
  • Patent number: 7191525
    Abstract: A two-stage attachment includes two stages of levers arranged to apply a cutting, shearing, squeezing and/or piercing force. The first stage includes a cam lever that has a segmented arcuate pushing surface. The second stage includes a blades support that has an arcuate yielding surface. The pushing surface contacts the yielding surface such that force applied to the cam lever is transmitted to the blade support through the contact between the surfaces.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: March 20, 2007
    Inventor: Aleksandr M. Brailovskiy
  • Patent number: 6820326
    Abstract: A compression assembly tool having multiple split bases for attaching connectors of different sizes to corresponding coaxial cables of different dimensions by compressing the connectors axially. The tool uses a light rigid O-frame and at least two pairs of split base supports located at different distances from a compression plunger driven by a lever handle. The handle is spring-loaded to the open position, but is held in the closed position by a wire bail for storage. The pairs of split base supports have annular bearing surfaces of different diameters that support the back of different connectors over a full 360 degrees. The split base supports are pivotally attached to the body, are held closed by a spring and are easily opened by squeezing push surfaces located on the split base supports towards each other to pivot the split base supports to the open position.
    Type: Grant
    Filed: October 5, 2002
    Date of Patent: November 23, 2004
    Assignee: Capewell Components Company, LLC
    Inventors: Andrew J. Tarpill, Tadeusz Zagula
  • Patent number: 6807840
    Abstract: A crimping pliers has a movable plier leg coupled to a fixed plier leg and a curved body in a head part of the pliers. Movable crimping punches are located in a pivoting plunger which is enclosed in the curved body. An adjusting and setting device having a threaded bush, a threaded spindle, a setting wheel, a fine scale and a rough scale is located on the fixed plier leg. The adjusting and setting device pivots the curved body allowing precise adjustment of the crimping punches via control cams in the curved body.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: October 26, 2004
    Assignee: Rennsteig Werkzeuge GmbH
    Inventors: Edgar Wilhelm, Horst Hofmann
  • Patent number: 6711930
    Abstract: A fiber optic cable trough notching system with a punch and a punch aperture spaced apart by a wall receiving opening for receiving a fiber optic cable trough component wall, the punch disposed to impart a force on the trough component wall to deform it into the punch aperture, and thereby create a detent and/or projection. The detent and/or projection are then utilized to operatively attach two trough components.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: March 30, 2004
    Assignee: Telect, Inc.
    Inventors: Terry T. Thom, Steven W. Ellison
  • Publication number: 20040000183
    Abstract: The invention relates to crimping pliers with an adjustable crimping gauge, in connection with which the crimping punches acting on the crimping contacts can be driven into and out of the crimping position by a pivoting plunger that guides the crimping punches and is actuated by the movable handle of the pliers and is guided in a curved body.
    Type: Application
    Filed: June 27, 2002
    Publication date: January 1, 2004
    Inventors: Edgar Wilhelm, Horst Hofmann
  • Patent number: 6516523
    Abstract: A punch for making holes in sheet stock is disclosed having three main components, a frame, a lever arm, and a plunger. The frame defines a tool head with a handle extending therefrom. The tool head defines a lower jaw and an upper jaw. The upper jaw is spaced apart from the lower jaw to define a first slot opening into the tool head from the first lateral side between the upper jaw and the lower jaw. The stock to be punched can be received and positioned by the slot. A plunger is mounted in the lower jaw for sliding movement toward the upper jaw. A lever arm extends into the tool head and actuates the plunger around a pivot point in the tool head upon being urged toward the handle.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: February 11, 2003
    Inventor: Joe Lin
  • Publication number: 20020092336
    Abstract: Pressing tongs have at least two pressing jaws wherein at least one of the pressing jaws is configured to be moved from a closed position into an open position. At least one first connector is provided to connect the pressing tongs to a motor-driven actuating device. At least one second connector is provided to connect the pressing tongs to a manual actuating device. The same type of pressing tongs can thus be operated manually as well as motor-driven.
    Type: Application
    Filed: January 14, 2002
    Publication date: July 18, 2002
    Applicant: REMS-WERK Christian Foll und Sohne GmbH & Co.
    Inventor: Rudolf Wagner
  • Patent number: 6260454
    Abstract: A method for adjusting the camber of a vehicle wheel having an axis of rotation and having camber adjustment means comprising the steps of loosening the wheel camber adjustment means while the wheel bears part of the motor vehicle's sprung mass, applying a clamp tool substantially vertically to the wheel whereby the tool straddles the wheel perpendicular to the axis of rotation, pivoting the tool and the wheel attached thereto perpendicular to the axis of rotation to a desired camber, and tightening said camber adjustment means. The clamp tool comprises a clamp having opposed inner and outer arms for engaging the respective inner and outer sidewalls of the wheel, at least one of the inner and outer clamp arms being extensible for engaging a wheel sidewall, means for adjusting the tool for snug engagement of the inner and outer arms with the wheel sidewalls, and lever means detachably connected to the tool for pivoting the tool and the wheel engaged by the tool.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: July 17, 2001
    Inventor: Paul Kevin Laprade