With Friction-reducing Feature Patents (Class 30/267)
  • Patent number: 11104015
    Abstract: Shears configured with blade pieces having pin holes, at least one of which is polygonal, along basal ends of the blade pieces, and a pin-hole swivel pin, and provided with grooves on either of opposing inner-side faces of the blade pieces. When the shears are in a predetermined open/close state, the grooves lead from the pin holes to the blade pieces' exterior. The pin is constituted by a columnar pin shank ending in cap portions. Rotatable, the pin shank interiorly contacts the polygonal pin hole's sides. The cap portion along the at least one blade piece having the polygonal pin hole has an opening interconnecting a gap between the pin hole and the pin shank with the cap portion's outer side. The grooves, the pin-hole/pin-shank gap, and the opening secure washing-fluid or air channels for cleaning out the pin holes, and realize a light, jiggle-free operational feel.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: August 31, 2021
    Assignee: Chikamasa Co. Ltd.
    Inventor: Yoshikazu Wada
  • Patent number: 11052549
    Abstract: A folding knife including a handle, a pivot axis, and a blade having a cutting edge. The blade is pivotably coupled to the handle such that the blade is pivotable relative to the handle about the pivot axis between a retracted position and an extended position. The cutting edge is exposed in the extended position and a portion of the blade is received within the handle in the retracted position. The folding knife further includes a bearing assembly for facilitating movement of the blade between the retracted position and the extended position. The bearing assembly includes a first bearing recessed within the blade and a second bearing recessed within the handle.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: July 6, 2021
    Assignee: Milwaukee Electric Tool Corporation
    Inventor: Joseph M. DeBaker
  • Patent number: 10025165
    Abstract: A camera mount, assembly, and method for supporting a number of cameras side-by-side along a linear or curvilinear path. The camera mount includes a rigid body having a tab and a coupling flange extending from opposite ends thereof. Tabs and flanges of adjacent mounts are overlapped and coupled via a fastener installed therethrough. A spring washer is installed on the fastener to preload the joint against relative movements, but the mounts are pivotable by hand about an axis formed by the fastener. Angular orientation between adjacent mounts can be defined using a gauge inserted between opposing faces of the mounts. Cameras are disposable on each mount and retained thereon by an elastic band extending over the camera and retained on catches provided on each side of the mount. The assembly of camera mounts is substantially rigid thus requiring few support devices.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: July 17, 2018
    Assignee: Freedom360 LLC
    Inventor: Steven M. Greenthal
  • Patent number: 8793883
    Abstract: Clipper for lemons and other fruits. The clipper can have a pair of operating arms, a pivot assembly for the operating arms, a lower central open-position abutment mechanism, hand grips with adjustable and alternative left and right-hand strap mounting, and an out-of-the-way abutment arrangement to define a clipper open position. The pivot assembly can include a dust-free rotation structure and an out-of-the-way torsion spring. Gripping handles for clippers and the like are also disclosed.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 5, 2014
    Assignee: Galliot, LLC
    Inventor: Ricardo Romero
  • Patent number: 8756818
    Abstract: A shear tension device comprising an adjustment screw and a lock wherein the lock is configured to engage with the adjustment screw and maintain tension properly set by the factory in the shears until service of the shears is required.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: June 24, 2014
    Assignee: Fitrakis-Souyias Meriol, Paula Sophia
    Inventor: Dino Fitraki
  • Patent number: 8695222
    Abstract: A power operated rotary knife (100) including: an annular rotary knife blade (300) including a knife blade bearing surface (319); a blade housing (400) defining a blade housing bearing surface (459); and a blade-blade housing bearing structure (500) disposed between the knife blade bearing surface (319) and the blade housing bearing surface (459). The rolling bearing strip (502) traverses through an annular passageway (504) defined between the knife blade bearing surface (319) and the blade housing bearing surface (459) to secure the knife blade (300) to the blade housing (400) and support the knife blade for rotation about a central axis (R) with respect to the blade housing (400). The blade housing further includes a cleaning port including an entry opening and an exit opening, the exit opening being in the inner wall and in fluid communication with the blade housing bearing surface.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: April 15, 2014
    Assignee: Bettcher Industries, Inc.
    Inventors: Jeffrey A. Whited, Nicholas A. Mascari
  • Patent number: 8479399
    Abstract: Pliers (1) as middle cutter or side cutter having plier jaws (4, 5) configured on plier legs, with a work range, wherein the plier legs with grip areas (2, 3) and configured to cross over one another around bearing bolts (6, 7) connected by a cover plate (8) are pivotably supported. The plier jaws on the working region side of the cover plate (8) and the crossing region (K) of the plier legs are configured on the other side of the cover plate (8). In order to improve the handling of these pliers, that relative to a side elevation, on the grip side with respect to the cover plate (8) in the plier legs, a tangential bend (A) is configured in which resultantly created different pivot planes (E1-E1) or (E2-E2) of the plier legs cross one another. The grip areas (2, 3) run in one pivot plane (E2-E2) and in another pivot plane (E1-E1) areas of the plier legs extended on the work range side of the tangential bend (A) run.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: July 9, 2013
    Assignee: KNIPEX-Werk C. Gustav Putsch KG
    Inventor: Ralf Putsch
  • Patent number: 8250958
    Abstract: An electric saw device includes a first saw blade and a second saw blade. The first and the second saw blades are respectively driven by a small transmission shaft and a large transmission shaft to rotate in opposite directions. A round rib is disposed on an inner end surface of the first saw blade, and at least three recessed holes are arranged in a top end surface of the round rib at equal angle intervals. A steel ball is accommodated in each of the recessed holes, and protrudes out of the recessed hole. Protruding ends of the steel balls urge against an inner surface of the second saw blade, so as to limit a distance between the first saw blade and the second saw blade, and form a rolling friction when the first and the second saw blade rotate in the opposite directions.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: August 28, 2012
    Assignee: Newstar (Asia) Ltd
    Inventor: Chung-Chi Eric Chen
  • Publication number: 20110203117
    Abstract: A garden shear cutting head with a lubricated pivot has: a shear body and a pivot. The shear body has a first cutting member and a second cutting member. A circular first assembling aperture is disposed in the first cutting member, and one end of the first assembling aperture has a lubrication slot. The second cutting member has a non-circular second assembling aperture corresponding to the first assembling aperture of the first cutting member, and a concave lip is around the second assembling aperture positioned to correspond to the lubrication slot. The pivot comprises a screw and a washer and is disposed through the first assembling aperture and the second assembling aperture and engaged with a locking member at another end. The screw has a head end, the head end has a filling hole through a central portion.
    Type: Application
    Filed: February 25, 2010
    Publication date: August 25, 2011
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang
  • Publication number: 20110005086
    Abstract: The invention relates to pliers (1) as middle cutter or side cutter having plier jaws (4, 5) configured on plier legs, having a work range, wherein the plier legs having grip areas (2, 3) and configured to cross over one another around bearing bolts (6, 7) connected by a cover plate (8) are pivotably supported, and the plier jaws on the working region side of the cover plate (8) and the crossing region (K) of the plier legs are configured on the other side of the cover plate (8). In order to improve the handling of pliers of the type in question the invention proposes that relative to a side elevation, on the grip side with respect to the cover plate (8) in the plier legs, a tangential bend (A) is configured in which resultantly created different pivot planes (E1-E1) or (E2-E2) of the plier legs cross one another, wherein the grip areas (2, 3) run in one pivot plane (E2-E2) and in another pivot plane (E1-E1) areas of the plier legs extending on the work range side of the tangential bend (A) run.
    Type: Application
    Filed: January 7, 2009
    Publication date: January 13, 2011
    Applicant: KNIPEX-Werk C. Gustav Putsch KG
    Inventor: Ralf Putsch
  • Patent number: 7640667
    Abstract: A pruner has a movable handle/blade assembly pivotally coupled to a static handle/blade assembly by a pivot assembly carried by the static handle. The pivot assembly further has a bush within the static handle and on which the movable handle/blade assembly is pivotally mounted, a spring for pivotally biasing the movable handle/blade assembly to an open position being retained by the pivot assembly within the static handle. Both the movable blade and static blade are mounted on the bush and are clamped laterally between two separate parts of the bush which are assembled together in screw threaded engagement, and the two blades are supported from the bush by a bearing ring of low friction material.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: January 5, 2010
    Assignee: ITW Australia Pty Ltd
    Inventors: Nathan Pollock, James Collins, Lee Rodezno, Peter Williams
  • Patent number: 7290339
    Abstract: A cutting apparatus for easily opening plastic packaging comprises: first support member 100, second support member 200, first shaft 400, second shaft 401, third shaft 402, first cutting wheel 300, second cutting wheel 301, third cutting wheel 302, handle 303, first drive wheel 304, and a second drive wheel 305.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: November 6, 2007
    Inventor: Mark J. Schmelzer
  • Patent number: 6662836
    Abstract: A tree shear attachment is, in one preferred embodiment, designed to replace the shovel at the outermost end of the boom assembly of a backhoe to provide remarkable maneuverability and an extensive range of motion for the shear. One of the severing jaws is fixed, presenting a stationary anvil, while the other is moveable and is provided with a shear blade that moves into engagement with the stationary anvil to complete the severance. Retainers at the forwardmost ends of the jaws help grip and stabilize the butt end of the tree following severance. An upstanding stabilizing rack on the frame of the shear has a pair of laterally spaced, forwardly projecting arms that generally overlie the two jaws to embrace and stabilize upper portions of the tree during and after severance.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: December 16, 2003
    Inventor: Eugene C. Andersen
  • Patent number: 5699615
    Abstract: Disclosed is a pocket-knife mainly including a handle consisting of two side members which together define a cavity at one side of the handle to receive a blade therein. The blade is pivotally connected at a rear portion to a front portion of the handle by a pivotal pin and can be extended from the handle to an open or operative position or be folded toward the handle to a closed or storage position. A releasable locking means is disposed between the two side members for locking the blade in the open position. The pocket-knife is characterized in several rotatable balls spaced around the pivotal pin and contacting with side surfaces of the rear portion of the blade, allowing the blade to be smoothly extended or folded with help of the rotatable balls.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: December 23, 1997
    Assignee: Chia Yi Enterprises Co.
    Inventor: Shun-fu Chen
  • Patent number: 5694694
    Abstract: An improved scissors includes a pivot joint having a pivot axis, a first blade member having a first cutting edge and a longitudinal axis, and a second blade member having a second cutting edge. The second blade member is pivotally coupled by the pivot joint to the first blade member with the first cutting edge adjacent and in contact with the second cutting edge. Moreover, the pivot joint is coupled to the first blade member to incline the first blade member relative to the second blade member and the pivot joint, so that the inclination of the first blade member produces a load transverse to the pivot axis of the pivot joint, which corresponds to the direction along the longitudinal axis of the first blade member to produce and determine the tension and friction along the cutting edges. Further, the first blade member may also include a first ride area, and the second blade member may also include a second ride area, so that the first ride area is spaced from and free of contact with the second ride area.
    Type: Grant
    Filed: August 5, 1994
    Date of Patent: December 9, 1997
    Assignee: Maksor, L.L.C., a Limited Liability Company
    Inventor: Scott H. Roskam
  • Patent number: 5692305
    Abstract: A scissors includes a pivot joint having a pivot axis, a first blade member and a second blade member. The first blade member has a first cutting edge, a longitudinal axis, and a pivot joint hole. The pivot joint hole being inclined at least 1.0 degree relative to a line perpendicular to the longitudinal axis (which corresponds to an angle "a" of 89.0 degrees or less with respect to the longitudinal axis) in a direction along the longitudinal axis of the first blade member, and is shaped to hold the pivot joint in a fixed inclination. The second blade member has a second cutting edge, and is pivotally coupled by the pivot joint to the first blade member with the first cutting edge adjacent to the second cutting edge. The pivot joint is also coupled to the first blade member through the pivot joint hole in the first blade member, and the pivot joint is maintained in a fixed inclined orientation relative to the direction along the longitudinal axis of the first blade member.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 2, 1997
    Inventor: Scott H. Roskam
  • Patent number: 5628116
    Abstract: There is disclosed a bearing (4) usable for scissors, including a disk-shaped holding plate (44) and a plurality of steel balls (4). The holding plate (44) is provided with a plurality of steel ball holding apertures (41) for rotatably holding the steel balls (40) under a condition where the spherical surface of each steel ball (40) is projected beyond either side of the holding plate (44); and, at a peripheral edge portion of each steel ball holding aperture (41), and at an outer peripheral edge portion of the holding plate (44), foreign material blocking barriers (42, 43) are respectively formed taken along the entire peripheral edge portions so as to each have a height lower than the height of the projecting portion of each steel ball (40).
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: May 13, 1997
    Assignee: Kabushiki Kaisha Naruto
    Inventor: Yoshifusa Kohno
  • Patent number: 5440813
    Abstract: An improved scissors includes a pivot joint having a pivot axis, a first blade member having a first cutting edge and a longitudinal axis, and a second blade member having a second cutting edge. The second blade member is pivotally coupled by the pivot joint to the first blade member with the first cutting edge adjacent and in contact with the second cutting edge. Moreover, the pivot joint is coupled to the first blade member to incline the first blade member relative to the second blade member and the pivot joint, so that the inclination of the first blade member produces a load transverse to the pivot axis of the pivot joint, which corresponds to the direction along the longitudinal axis of the first blade member to produce and determine the tension and friction along the cutting edges. The load transverse to the pivot axis may be oblique to the pivot axis of the pivot joint and may also be inclined between 0.1 to 10.
    Type: Grant
    Filed: June 4, 1993
    Date of Patent: August 15, 1995
    Inventor: Scott H. Roskam
  • Patent number: 5243762
    Abstract: A garden shears is provided with replaceable knives mounted on elongated grips which are connected at a pivot joint that is constructed of a steel bushing that takes up radial loads (shear and flexure). Axial loads are taken up by a screw bushing which passes through the steel bushing and a joint screw threadably engaged with the screw bushing. Both the joint screw and the screw bushing have widened shallow heads with slightly convex surfaces that pass into surfaces of the shears. The replaceable knives are supported at the rear by extensions of the respective grips in a manner such that the knives are not required to take up bending moments.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: September 14, 1993
    Assignee: Wolf-Gerate GmbH Vertriebsgesellschaft KG
    Inventor: Gebhard Orthey
  • Patent number: 4616417
    Abstract: A hydraulic shear attachment means for construction equipment having a support arm for pivotal attachment to said construction and a lower jaw for shearing. The arm includes flange members positioned on either side of the lower jaw to support the pivotable upper jaw. Arcuate tracks are positioned in the support flanges to receive a support pin extending through the upper shear jaw which rides in said tracks during actuation of the upper jaw.
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: October 14, 1986
    Assignee: AAA Steel and Enterprises Corp.
    Inventor: Sol N. Gross
  • Patent number: 4584770
    Abstract: Pinking shears are disclosed comprising a pair of blades having cutting teeth and tips on one end and a handle on the other end, a common pivot assembly for the pair of blades, and an adjustable ball assembly for adjusting the pressure applied at the tips of the blades. The ball assembly is mounted in one blade between the handle thereof and the pivot assembly bears against the other blade to urge the blades away from one another adjacent the handles of the shears. As a result of this arrangement, the pressure between the tips is increased and a smooth cutting action is obtained when the pinking shears are being used to cut different types of materials of varying thickness.
    Type: Grant
    Filed: July 11, 1985
    Date of Patent: April 29, 1986
    Assignee: Cooper Industries, Inc.
    Inventor: Albert Sabol
  • Patent number: 4569132
    Abstract: A compound-action scroll snip which is quickly and simply adjusted using a procedure amenable to automation. The snip includes a pair of pivotal blades in direct contact at the pivot point, and a pivot shaft with a head and a threaded end extending through round untapped holes in both blades. Two flat washers are located over the threaded end between one of the blades and a slotted-section locknut is threaded onto the threaded end. Proper adjustment of blade clearance is obtained by tightening the slotted-section locknut until a sudden increase in tightening torque occurs.
    Type: Grant
    Filed: November 23, 1983
    Date of Patent: February 11, 1986
    Assignee: Cooper Industries, Inc.
    Inventor: Roy A. Hill
  • Patent number: 4473947
    Abstract: The pair of scissors including a receiving blade and a cutting blade which are rotatably coupled by means of a center bolt whose end is anchored to one of the two blade bodies. Before inserting and anchoring the center bolt, a bushing made of engineering plastic having a flange is fitted to the base portion of the center bolt and inserted into a shank hole formed in another one of the two blade bodies. The shape of the fitting portion between the center bolt and the bushing includes a tapered dish-like shape formed along the undersurface of the head portion of the center bolt and a tapered shape formed over the upper surface of the bushing which matches the undersurface of the center bolt.
    Type: Grant
    Filed: June 8, 1982
    Date of Patent: October 2, 1984
    Inventors: Kimikazu Ishida, Tsuneo Ishida
  • Patent number: 4406063
    Abstract: A pinking shears having a pair of blades pivotally connected together by a bolt and having cooperative teeth formed along their leading edges and having handles at the ends of the blades opposite said teeth. A non-metallic spacer and pressure producing ridge member is located between the blades and has an apertured spacer portion through which the bolt extends and which serves to provide rough blade separation. The member also has a pressure producing ridge located at the handle side of said bolt and for bearing against the blades to produce cutting pressure between the teeth of the blades. The blades have tapered leads which cooperate with one another as the shears are closed to provide gradual smooth engagement of the blades.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: September 27, 1983
    Assignee: Oy Fiskars AB
    Inventor: Allen J. Zaitz