Patents Examined by Frank T. Yost
  • Patent number: 5259284
    Abstract: A carpenter's saw designed for use in beveling the ends or edges to form a miter joint is disclosed. The saw comprises mainly a saw base and a saw support. The saw base includes a horizontal base face having a fan-shaped portion disposed at the center thereof. The saw support is fastened to the fan-shaped portion. A hacksaw is mounted on the saw support. The saw support comprises a suspension arm which is pivoted horizontally to the bottom of the fan-shaped portion. Two seats are separately arranged at both ends of the long axis of the suspension arm. Located on each of the two seats are arc-shaped recesses which have the same curvature radii. Two rotating members are lodged separately in the two arc-shaped recesses in order to rotate along the arc-shaped rails provided. Two support rods are vertically mounted on the rotating members for the hacksaw to be fastened thereon.
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: November 9, 1993
    Inventor: Chuan-Wu Chen
  • Patent number: 5257569
    Abstract: Apparatus for forming the bolt openings and/or the center-pilot opening in a vehicle wheel that includes a circumferential array of locating jaws for engaging and locating the rim portion of the wheel. An upper die is reciprocable for forming at least one mounting opening on a first axis in the disc portion of a wheel engaged by the locating jaws. The locating jaws are movable between a first or outer position, and a second or inner position radially inward of the outer position and in which the locating jaws engage the rim portion of the wheel positioned within the locating jaws. A ring mechanism surrounds the first axis and is disposed for radial abutment by the mechanism for moving the locator jaws at the second or inner position of the locator jaws so as to define the second or inner position of the locating jaws concentrically with each other on a second axis, which may be either concentric with or eccentric to the first axis.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: November 2, 1993
    Assignee: Motor Wheel Corporation
    Inventor: Walter A. Santarossa
  • Patent number: 5257568
    Abstract: The invention is directed to a saw chain for a motor-driven chain saw equipped with a guide bar and a drive motor for imparting a force to the saw chain for moving the latter around the guide bar in a predetermined running direction. The saw chain includes a plurality of side cutting links, a plurality of center driving links and a plurality of side connecting links. The links are pivotally interconnected by rivets to define the saw chain. Entrainers are formed on at least a portion of the connecting links and/or drive links to reliably hold a chip cut by a forward cutting tooth in the free space between two cutting links one directly behind the other. The chip is therefore prevented from slipping relative to the saw chain and is transported out of the kerf without affecting the cutting capacity of the next-rearward cutting link.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: November 2, 1993
    Assignee: Andreas Stihl
    Inventor: Karl Nitschmann
  • Patent number: 5257667
    Abstract: A first rotation driving mechanism including a hydraulic motor (26), a driving gear (27), and a driven gear (29) is provided between a coupling arm unit (12) attachable to the operational arm of a construction machine such as a hydraulic shovel, etc., and a hanger unit (14) to relatively rotate them in the horizontal plane, and at the same time, a second rotation driving mechanism including a hydraulic cylinder (32) and a rocking arm (34) is provided between the hanger unit (14) and a main body (20) to rotate them in the vertical plane. The positional changes of the hanger unit (14) and the main body (20) are automatically performed by a remote control rapidly and easily, and further, with safety to improve the mobility and operativity of the piling, and the pile installation and removal.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: November 2, 1993
    Assignee: Kencho Kobe Co., Ltd.
    Inventors: Yuji Sano, Fubito Shimada
  • Patent number: 5255586
    Abstract: A radial arm saw having a support table below the saw is arranged to receive a support sleeve directed through the support table, with the support sleeve adjustably mounting a positioning rod shaft therethrough orthogonally oriented relative to a top surface of the support table. A workpiece is arranged to rotatably mount upon a first end of the positioning shaft to permit manual rotation of the workpiece in engagement with a saw blade of the radial arm saw. In this manner, a circle may be formed from a workpiece plate.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: October 26, 1993
    Inventors: Larry E. Newhausen, Steven W. Kloster
  • Patent number: 5255588
    Abstract: An apparatus for making accurate cuts in thermoformed articles projecting vertically above a generally planar sheet of thermoformable material includes a base plate having a lower surface, at least one pair of knives being mounted to the lower surface of the base plate to depend therefrom and being capable of limited movement, each knife having a cutting portion and a guiding portion, the guiding portion of each knife being angled relative to the longitudinal axis of each knife and being divergent from the adjacent knife.
    Type: Grant
    Filed: June 2, 1992
    Date of Patent: October 26, 1993
    Assignee: Plastofilm Industries, Inc.
    Inventors: Douglas E. Foos, Todd O. Buck
  • Patent number: 5255867
    Abstract: The present invention provides a bale ripper and conveyor which disintegrates round bales of forage material. The bales can be loaded into the device without regard to the direction in which they are wrapped. The present invention further comprises a control box and conveyor assembly whereby the speed of operation of the device can be controlled manually and the shredded forage material can be directed to a desired location such as a mix mill.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: October 26, 1993
    Inventors: David Whittleton, Leslie Burton-Bzowy
  • Patent number: 5255585
    Abstract: A vacuum system for removal of debris in the form of shavings, particles, or the like has been developed for use inside of a cryostat to evacuate and collect such material as it is generated during specimen preparation using a microtome, also inside of the cryostat. The system includes a vacuum assembly unit containing a vacuum collection nozzle having a suction duct. The cold assembly unit is moveably positioned adjacent to the microtome knife so that debris is suctioned away and removed concurrent with or immediately after its production during cryotomy, and is captured in a cold primary filter. The frozen debris does not melt, but remains rigid while it freeze-dries and is trapped on the filter as cold air flows over and through it, thereby maintaining the collected waste material in a very porous state.
    Type: Grant
    Filed: September 19, 1991
    Date of Patent: October 26, 1993
    Assignee: Instrumedics, Inc.
    Inventor: Abraham Gordon
  • Patent number: 5255439
    Abstract: A spaghetti tool has a shaft that has a grippable portion and a base portion, which is located at a first end the shaft and from which protruding elements extend. In one embodiment, the shaft forms a substantially semi-cylindrical channel into which uncooked spaghetti can be laid. Markings on the inner wall of the shaft, corresponding to the height to which the uncooked spaghetti reaches in the channel, indicate the amount of spaghetti so that the correct amount of uncooked spaghetti can be measured out to yield a desired amount of cooked spaghetti. The markings can be letters or numbers to indicate either the number of portions or a numerical quantity corresponding, for example, to spaghetti weight. In another embodiment, the protruding elements are of substantially constant length and are arranged in parallel rows and/or columns with predetermined row/column separations.
    Type: Grant
    Filed: March 26, 1992
    Date of Patent: October 26, 1993
    Inventor: Olle G. Liss
  • Patent number: 5253420
    Abstract: A razor head, especially a razor blade unit of a wet razor, disposed at the front end of a handle. A single or double razor blade is yieldingly mounted in a plastic housing. To improve the spring or yielding mounting of the single or double razor blades, the latter are secured to a blade member that is displaceably mounted in the plastic housing and can be displaced in a direction toward the rear wall of the plastic housing against a spring force.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: October 19, 1993
    Assignee: Wilkinson Sword Gesellschaft mit beschrankter Haftung
    Inventors: Wolfgang Althaus, Michael Schwarz
  • Patent number: 5253558
    Abstract: An apparatus and system for cutting hose includes structure which allows a portion of the hose that is proximate the trailing side of a cutting blade to be angularly displaced during cutting while a portion of the hose proximate the leading side of the cutting blade is not angularly displaced. A method for cutting hose includes the step of angularly displacing a portion of the hose that is proximate the trailing side of a cutting blade during cutting while a portion of the hose proximate the leading side of the cutting blade is not angularly displaced.
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: October 19, 1993
    Assignee: Marken Manufacturing, Inc.
    Inventor: Kenneth J. Guddal, Jr.
  • Patent number: 5251525
    Abstract: An apparatus and a cradle for converting a portable bandsaw into an upright table saw. The saw includes a casing, a pair of spaced apart pulleys mounted in opposed housings on the casing for rotatably supporting an endless saw blade, and a trigger guard attached to the back of the casing behind the motor housing. The stand includes a horizontally disposed base plate, a vertically disposed pedestal and a short, narrow facing piece mounted on the base plate, so that the L-shaped trigger guard, when placed in an upright position, will snugly fit, remaining upright, and a bracket situated near the top of the pedestal which serves to retain the upper portion of the bandsaw. A trigger actuating means is mounted on the pedestal for holding the trigger of a saw suspended in the cradle in either an on or an off position.
    Type: Grant
    Filed: August 18, 1992
    Date of Patent: October 12, 1993
    Inventor: Ronald G. Galloway
  • Patent number: 5251801
    Abstract: A hand-held surgical stapler is provided having a reduced distal profile due to a unique feeding means. A combination of features allows the reduced distal profile. The staple storage cover can be of reduced distal thickness due to the slope effect. The staple pusher has the capability at its distal end to push and by pushing lift all of the staples, including the last, into the staple track. Provisions are made on the staple pusher to allow the form tool to displace it out of the staple track to allow forming of the last staple. Nose assemblies are disclosed which can be interchangeably mounted to various trigger assemblies. The pre-load on the stored staples can be varied. A ratchet feature requires full depression of the trigger before it can be returned to a neutral or extended position and full extension of the trigger to its neutral position prior to initiation of the next staple feed cycle.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: October 12, 1993
    Assignee: Edward Weck Incorporated
    Inventors: Thomas W. Ruckdeschel, John C. Phillips
  • Patent number: 5251379
    Abstract: A paper cutter particularly one comprising a base, a cutter holder, a blade, a spring wire, an adjusting spring plate, an adjusting knob, an intermediate plate, and a top cover in which a notch is designed at a corner of the base for extension of a blade, the cutter holder is pressed by the adjusting knob with a plurality of protuberances of different diameters to adjust the extent of blade extension for cutting of paper of different thickness without damaging paper beneath it, and the cutting is proceeded by sliding a flange of the base on the paper to assure precise cutting.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: October 12, 1993
    Inventor: Fulton Kuo
  • Patent number: 5251524
    Abstract: A convertible siding cutter (10) for cutting vinyl or metal siding, comprises an upper knife assembly (26) pivoted to the front one of a plurality of lower knife assemblies (36, 46) mounted on a base (20). The blade (28) in the upper knife assembly (26) can be interchanged with other blades, and an auxiliary lower knife assembly (58) can be used for conversion to accommodate different sizes and types of siding. A safety clamp assembly (64) is also provided to help keep the user's hands away from the blades when using the cutter (10).
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: October 12, 1993
    Inventor: Leo D. Clifford
  • Patent number: 5251831
    Abstract: Raw coal is caused to fall through a coal feed pipe and onto a table so as to be pulverized by a roll. Fine coal particles and coarse coal particles resulting from pulverization are moved upward between an auxiliary classifier cone and a mill casing by hot air supplied from below the mill casing. The hot air (upward stream) carrying the fine coal particles and the coarse coal particles moves across a space of triangular cross section formed between the inverted conical body of the auxiliary classifier cone and the side wall of the mill casing and is forced through blowoff openings defined between deflector plates so as to flow as a lateral rotative stream toward a rotary classifier. Upon impinging the downward-inclined rotating vanes of the rotary classifier, the coarse coal particles are sprung back toward a lower portion of the auxiliary classifier cone and are separated from the fine coal particles.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: October 12, 1993
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Hirohisa Yoshida, Tsugio Yamamoto, Masaaki Kinoshita, Hidenori Sakamoto, Takeshi Kunimoto
  • Patent number: 5251706
    Abstract: A ratchet nut runner is energized either manually or by a non-manual power source such as a battery, on-line electrical power or a pneumatic supply. A tubular body or housing, which contains speed-reducing and power-amplifying structures, serves also as the handle or hand grip for the device. A driven drive shaft which extends coaxially from the housing is connected to a head of the device through a pivot joint assembly. An important feature of the drive device is that the housing-enclosed drive shaft is pivotable from a non-manual power drive mode in which the drive shaft is coaxial with a tool-engaging stud or coupler, to a configuration in which the drive shaft extends normally of the coupler for rotation of the drive head manually. A switch which connects non-manual power to the drive shaft operates to cut off power when the device is disposed in a manual mode of operation.
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: October 12, 1993
    Inventor: Jack Evans
  • Patent number: 5251832
    Abstract: A transportable facility for recycling waste plastics comprises at least one chipper, one storage hopper, and one extruder connected by constant-operation conveyors and integrated into components that are ready to either operate or move to another site. The components can be combined into an enclosed and modular production plant.
    Type: Grant
    Filed: February 27, 1992
    Date of Patent: October 12, 1993
    Assignee: REAL GmbH
    Inventor: Martin Hentschel
  • Patent number: 5249361
    Abstract: A razor blade body in the form of a cartridge structure includes a guard member assembled thereon forward of, and extending parallel to, the blade or blades. The guard is of a two part molded structure having an upper portion of elastomeric material with a plurality of upwardly projecting protrusions formed thereon and a lower base portion of rigid plastic material having a downwardly projecting V-shaped cross-sectional portion. A pair of upwardly projecting elements are disposed in spaced relation forming a recess on the blade cartridge structure for receiving the V-shaped base portion therebetween and a latch means disposed in the recess retains the guard member in the assembled position.
    Type: Grant
    Filed: May 13, 1992
    Date of Patent: October 5, 1993
    Assignee: The Gillette Company
    Inventors: Domenic V. Apprille, Jr., Gary R. Miller, Frank E. Brown, John B. Taylor
  • Patent number: 5249362
    Abstract: A quick release device for use with chain saws and which is adapted to quickly attach a bar and chain to the motor assembly of the chain saw. The quick release device comprises a body having an upper jaw and lower jaw. The jaws are adapted to engage notched ends of studs extending from a motor assembly and thereby clamp the bar and chain to the motor assembly. A rotatably threaded shaft cooperates with the body in a unique manner such that turning of the shaft in a manner which causes a clamping action actually biases the jaws away from one another. A head is located on the threaded shaft with a plurality of apertures so that one can readily engage an aperture with a tool thereby facilitating manipulation of the head.
    Type: Grant
    Filed: May 21, 1992
    Date of Patent: October 5, 1993
    Inventor: Alfred F. Harding