Patents Examined by J. T. Zatarga
  • Patent number: 4442878
    Abstract: A hand-held power tool, such as an electric planer or the like, comprises a mechanism for moving or forwarding the body of the tool in a straight hand path. The mechanism includes a rotary wheel or a plate attached to the tool body so that the rotary wheel or plate contacts the surface of a work piece when the tool body is placed thereon. The rotary wheel or the plate is made of a material having a high friction coefficient. A plurality of parallel grooves are formed on the surface of the rotary wheel or so that a high degree of friction occurs between the surface thereof and the surface of the work piece should the body move in a direction other than a given direction on the surface of the work piece. The rotary wheel or plate is biased toward the work piece with the biasing force applied to the rotary wheel being variable.
    Type: Grant
    Filed: August 4, 1981
    Date of Patent: April 17, 1984
    Assignee: Hitachi Koki Company, Limited
    Inventors: Seki Moriguchi, Katsuo Koizumi, Sueji Nagayama
  • Patent number: 4442737
    Abstract: Removal of a screw-on type of thread protector from a pipe is achieved by this invention with uniformly applied pressure about the entire circumferential surface of the thread protector. Thus an inflatable type grasping urethane boot of a wrench mechanism is positioned circumferentially about and adjacent to the grasping surface of a generally cylindrical screwed-on thread protector before inflation. The boot is connected with a chamber which retains a fluid such as air under pressure and thus is firmly coupled in grasping connection with the thread protector by inflating in place from an air pressure hose for example. After removal of the thread protector, the chamber may be deflated to release it. The wrench is manipulated to rotate the inflated boot by rotation of a shaft co-axially located with the pipe to which the inflation valve may be attached for ready access. Preferably, the boot is supplied with a tread design to give better grasping characteristics.
    Type: Grant
    Filed: April 14, 1982
    Date of Patent: April 17, 1984
    Inventor: Robert M. Miner
  • Patent number: 4440205
    Abstract: An axe or wedge has a head with a cutting surface along an edge thereof. A pair of levers are pivotally mounted in transverse apertures formed in the head so as to pivot in opposite directions about a common axis aligned with the cutting edge. Stop means are provided in the transverse apertures so as to offset the levers to opposite sides of the head. Springs connected between the head and the levers normally hold the levers against the stops. The head has a recess formed above each lever and into which the lever may pivot so as to be flush with the head. In one embodiment, the levers are bifurcated and have camming surfaces which extend out of the head to the side opposite the offset and which, upon contact with wood being split, urge the levers from the stops into contact with the wood being split.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: April 3, 1984
    Assignee: Alltrade, Inc.
    Inventor: George Hillinger
  • Patent number: 4440048
    Abstract: A screwdriver comprises a handle having four screwdriver blades pivotally connected adjacent one end. The blades may be pivoted from a stored position alongside the handle to an operative position in advance of the handle. A locking device locks the blade in an operative position and comprises a disc rotatably mounted on the one end of the handle with a slot to engage the blade. The slot has a radial portion and a circumferential position so that the blade first enters the radial portion and the disc is then rotated to hold the blade in the circumferential portion.
    Type: Grant
    Filed: July 9, 1981
    Date of Patent: April 3, 1984
    Assignee: MIC Manufacturing and Machine Works Ltd.
    Inventors: Larry G. H. Stevens, Edmund G. F. Sweet, Franklin V. Vresk
  • Patent number: 4440206
    Abstract: A universal hammer having separable handle and head portions to permit the use of interchangeable heads. The head is formed with a female threaded bore which threadedly engages a male threaded shank. A cross hole is formed through both the head and the shank so that a pin may be inserted to retain the separable parts against relative rotation. A collar is also threaded to the shank and has a cylindrical portion which surrounds the cross bore to prevent removal or loss of the pin. A locking nut jams against the collar to prevent it from becoming loose.
    Type: Grant
    Filed: March 10, 1983
    Date of Patent: April 3, 1984
    Inventor: John R. Dart
  • Patent number: 4438564
    Abstract: An improved egg scoop or spoon suitable for handling hot boiled eggs wherein the spoon bowl is itself egg shaped and is constructed so as to be easily positionable around an egg, to surround and firmly retain an egg and to provide for the drainage of fluids from the egg without its retention within the spoon bowl and the ready floatation of an egg from the spoon bowl when presented to a body of fluid.
    Type: Grant
    Filed: July 9, 1976
    Date of Patent: March 27, 1984
    Assignee: Dart Industries Inc.
    Inventor: Harold P. Ashton
  • Patent number: 4438565
    Abstract: A handle for a hand tool comprises a shank, a sheath, and an intermediate member which fits between the shank and the sheath. The intermediate member fills the space between the shank and the sheath, to allow the sheath to be moulded to any desired external shape and yet have uniform wall thickness, and still be securely held to the shank.
    Type: Grant
    Filed: June 18, 1980
    Date of Patent: March 27, 1984
    Assignee: Hough Industries Limited
    Inventor: John A. Hough
  • Patent number: 4437365
    Abstract: A screwdriver capable of being operated conventionally by the handle as a manual drive and alternatively being capable of being connected to a power drill so that it may be driven automatically. The screwdriver includes a conventional shank and tip at its end to engage the head of a screw. The handle has a coupling either permanently or removably attached to its top and which is adapted to fit into a conventional chuck of a power drill so as to connect the screwdriver to the power drill so that it may be driven automatically.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: March 20, 1984
    Inventor: Yigal Y. Yaari
  • Patent number: 4436004
    Abstract: A universal multi-socket ratchet wrench comprises in combination a socket gripping body having a plurality of cross slot equally formed around the longitudinal wall of the open head for respectively and movably receiving a gripping member therein defining an adjustable hexagonal socket thereof; a rotary conical member having screw teeth at the larger end and a driving arm at the other end being positioned within an annular recess of the socket gripping body for matching with and making adjustment to the gripping members thereof; a force applying member with control and driving means installed therein being coupled with the socket and gripping body relative to the rotary conical member thereof; and a telescopic and pitchable handle connected to the force applying member, whereby, with the arrangement of the control and driving means, the socket gripping body is adaptable to any hexagonal nuts or other bolt type fasteners for tightening and loosening operations, that can be performed at any direction by the use
    Type: Grant
    Filed: March 3, 1982
    Date of Patent: March 13, 1984
    Inventor: Hui-Huang Chang
  • Patent number: 4434687
    Abstract: A damaged screw remover comprises a handle and a shank terminating in a relatively wide blade, all resembling a standard screwdriver, the blade having a modified working end adapting it for engaging and rotating damaged screws. The working end includes an axially-disposed blunt tip of square cross-section, with two surfaces coplanar with the blade faces. Flanking the tip are bevelled end surfaces, each disposed at an acute angle (45.degree.) with respect to the blade faces, to form sharp leading edges which dig into the screw, providing good engagement as the screw is removed.
    Type: Grant
    Filed: November 1, 1982
    Date of Patent: March 6, 1984
    Assignee: Vi-Tek Designs, Inc.
    Inventor: Anthony N. Vickio
  • Patent number: 4434688
    Abstract: An improved screwdriver that will not slip out of a screw head, having a screw head receiving element secured to a screwdriver shank. The screw head receiving element is provided with a screwdriver blade and is adapted to receive at least a portion of a screw head of an appropriately sized screw such that the blade can slide in a screw head slot only until said screw head rests against a surface of the screw head receiving element. Preferably, the blade utilized has parallel faces instead of the normally tapered faces of a standard screwdriver so that the inside edges of the screw head slot are not damaged during use of the screwdriver.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: March 6, 1984
    Inventor: Corwin Bowles
  • Patent number: 4434828
    Abstract: A screwdriver is provided having a handle for storing bits. The stored bits are held in the handle in transverse orientation with respect to the long axis of the screwdriver by sleeves of resiliant material which are press fit into transverse openings through the handle. The sleeves have internal diameters slightly smaller than the outside diameters of the bits being stored. To remove one of the stored bits for use, the user simply removes the bit previously used and which is magnetically held to the screwdriver shaft and presses it into the opening in the sleeve holding the desired bit, thereby freeing the desired bit and, at the same time, storing the bit previously used. The desired bit is then affixed to the magnetic holding means.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: March 6, 1984
    Inventor: Richard Trincia
  • Patent number: 4433709
    Abstract: A striking tool such as a drywall hatchet for use in the installation of drywall panels in buildings and adapted for driving nails close to the junction of room surfaces, while minimizing damage to the panels, includes a head unit having a hammerhead portion, a medial body portion, and a blade portion. The hammerhead portion has a truncated disk-like configuration, providing a planar top marginal surface, and an arcuate side and bottom marginal surface extending around the hammerhead portion from one end of the top marginal surface to the opposite end thereof, and being convexly curved in the longitudinal direction of the head unit. The hammerhead portion has a convexly curved forwardly facing striking surface extending between the marginal surfaces, including a central milled area and a substantially smooth border completely therearound.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: February 28, 1984
    Assignee: Vaughan & Bushnell Manufacturing Co.
    Inventor: Lawrence W. Porter
  • Patent number: 4433484
    Abstract: A cable stripper, including an elongated handle, a conventional single edge razor blade supported in each opposite end of the handle, one of the blades having an exposed corner of its cutting edge, while the other blade has a portion of its cutting edge inside a groove formed on the handle.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: February 28, 1984
    Inventors: Gerald L. Antisdel, Robert J. Picard
  • Patent number: 4433710
    Abstract: A plane adapted to cut hinge recesses in a door edge is disclosed. The plane housing has a base having a cutout. A rotary cutter, rotatable relative to the base, is mounted from the base and in alignment with the cutout. Means are provided for selectively adjusting the position of the cutter relative to the base. Limiting means are provided for preventing the cutter from cutting across the entire width of an underlying door edge so that the cutter will leave an uncut strip of door edge after a hinge recess is cut in the door edge by the plane. The uncut strip serves to limit lateral movement of the door hinge when it is mounted in the hinge recess cut by the plane. Means are provided for rotating the cutter, such means comprising a first pulley on the cutter, a second pulley, a tensioned belt engaging both pulleys and drive means for the second pulley.
    Type: Grant
    Filed: October 28, 1981
    Date of Patent: February 28, 1984
    Inventor: Antonio D. Posta
  • Patent number: 4432137
    Abstract: A rotary cutter which includes an elongated handle having an aperture extending through its one end, a shaft extending through the aperture so as to be supported by the handle, a disc blade rotatably mounted on the shaft and lying in a plane perpendicular to the longitudinal axis of the shaft, and a member engageable with the shaft, with a bearing projection formed on the handle coaxially with the aperture.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: February 21, 1984
    Assignee: Okada Kogyo Kabushiki Kaisha
    Inventor: Yoshio Okada
  • Patent number: 4432138
    Abstract: A cutting blade for a hand-held cutter for cutting a cloth cover from a dampener roller without damaging any material under the cutter. The blade has an upwardly curved front bottom edge portion, a convexly curved front tip portion, and a concavely curved upwardly extending cutting edge portion.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: February 21, 1984
    Inventor: Albert V. Piccolo, Jr.
  • Patent number: 4429599
    Abstract: A tamper proof screw head screwdriver blade utilizes a handle attached to an elongated cylindrical shaft. The distal end of the shaft is contoured so as to have a pair of diametrically opposed wedge-shaped portions removed defining two pairs of wall-like surfaces, wherein each of the wall-like surfaces extend along a portion of the distal end of the shaft. The pair of corners located at the free end of the shaft and one of each of the pairs of wall-like surfaces, are broken away, defining two surfaces, each skew with the plane defined by the free end of the shaft and each extending in opposite directions forming an acute angle with the longitudinal axis of the shaft. In use, the blade is inserted in the head of a screw having a transverse notch therein separating a pair of curved surfaces extending outwardly from the floor of the transverse notch.
    Type: Grant
    Filed: January 3, 1983
    Date of Patent: February 7, 1984
    Inventor: James A. La Sante, Sr.
  • Patent number: 4429600
    Abstract: A tamper-proof screw assembly is made up of three basic parts, two of which are coupled together. First, there is provided a screw having a flat head with a center tapped opening and an annular array of teeth formed in its surface surrounding the tapped opening. A second member constitutes a torquing member with a flat bottom and central bore passing completely through the member. An annular array of teeth is formed in the flat bottom in a position to register with the first mentioned annular array of teeth. A third member serves to apply an axial force between the torquing member and the screw head to hold the teeth respectively in engagement with each other so that torque can be transferred to the screw.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: February 7, 1984
    Inventor: Bulent Gulistan
  • Patent number: 4428262
    Abstract: This adjustable stripper tool is for use in custom tooling, magnetic tooling, and adjustable tooling, where a punching machine is employed. Primarily, it consists of a hollow cylindrical main body, which is received on a punch of the machine, and it is adjustable in length by placing or removing a multiple number of spacers in its metal cap, which is force-fitted on the open end of the main body.
    Type: Grant
    Filed: July 9, 1982
    Date of Patent: January 31, 1984
    Inventor: Charles D. Vlahek