Patents Examined by Richard B. Lazarus
  • Patent number: 4325515
    Abstract: The mixing apparatus has a crushing chamber which can be continuously charged with material and a circulating chamber being in communication with the crushing chamber by way of a port. The port can be shut. The continuously charged material can be pre-condensed in the crushing chamber and be condensed and cooled in the circulating chamber. In this case the port is shut during the cooling process. Also, complete condensation can take place in the crushing chamber with the port being shut. In that case, the material is fed batch-wise into the circulating chamber for cooling.
    Type: Grant
    Filed: April 12, 1979
    Date of Patent: April 20, 1982
    Inventor: Friedrich W. Herfeld
  • Patent number: 4318512
    Abstract: The invention herein relates to the screen latching apparatus of a hammermill structure in which the improvement consists of a releasing and latching arrangement for the removal and replacement of a screen member by a tension linkage whereby the screen is released for removal from its operating position and the replacement screen is latched into position by the forward and reverse action of an operating handle.
    Type: Grant
    Filed: October 26, 1978
    Date of Patent: March 9, 1982
    Assignee: Jacobson Machine Works, Inc.
    Inventors: Howard C. Jacobson, George R. Olson
  • Patent number: 4294393
    Abstract: A wire spoke, non-suspension type, automotive wheel in which the spokes are operably untensioned prior to vehicle loads being placed upon the wheel. An outer tubeless tire rim with a drop center is mounted to a wheel center which includes a substantially thick and solid felly connected to a concentrically positioned hub. Wire spokes extend radially outward from the hub in circumferential array and have tenons or feet on inner ends thereof which are anchored within recesses at front and rear ends of the hub. Radially outer ends of the spokes are plain terminations welded in the shape of a plug anchor within circumferentially spaced bores in the felly to secure the spokes and permit wheel formations which exhibit the classic beauty and elegance of a suspension wire spoke wheel, combined with durability, strength and ease of construction.
    Type: Grant
    Filed: September 28, 1979
    Date of Patent: October 13, 1981
    Assignee: Weldwheels, Inc.
    Inventor: Richard G. Weld
  • Patent number: 4293097
    Abstract: A method is disclosed for processing a natural calcitic ore to yield a finely divided calcium carbonate particulate of very high brightness characteristics. The natural calcitic ore is initially coarse-milled to produce a product wherein no more than 5% by weight of the particulate is +325 mesh, and no more than 35% by weight of the particles are of less than 2 microns E.S.D. This coarse-milled product is then subjected as an aqueous slurry containing less than 40% and preferably less than 30% solids by weight, to a froth flotation, which separates with the froth the relatively coarse colorbodies liberated in the initial grinding. Preferable compositions for use in the froth flotation comprise 1-substituted-2-alkyl imidazolines or the salt derivatives thereof, with such compounds being utilized in admixture with a substantially non-polar aliphatic compound having from 10 to 20 carbon atoms in its longest straight chain.
    Type: Grant
    Filed: April 2, 1979
    Date of Patent: October 6, 1981
    Assignee: Anglo-American Clays Corporation
    Inventors: Herbert I. Lewis, Anthony D. McConnell, William M. Price
  • Patent number: 4289174
    Abstract: A strapping tool of the type which crimps or notches a seal around overlapping strap ends extending in opposite directions in a tensioned strap loop around an article being tied. The tool has a frame, a sealer jaw assembly mounted for at least opening and closing movement about the seal and an actuator therefor. The actuator includes a member adapted to be rotated about an axis in a first direction to a predetermined angle to fully close the jaw assembly and adapted to be rotated about the axis in a second, opposite direction to open the jaw assembly. A pawl is mounted on the frame for pivoting in the first and second directions and is biased against rotation in both directions to an initial, unengaged position when the jaw assembly is both fully closed and fully opened.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: September 15, 1981
    Assignee: Signode Corporation
    Inventor: Robert J. Massion
  • Patent number: 4288022
    Abstract: First and second underwater tubular members are assembled together so that the outer surface of the first tubular member and the inner surface of the second tubular member are spaced apart to form an annular cavity. The cavity is sealed, cleaned and dried and filled with a gas at a pressure greater than the surrounding water pressure. The pressure in the cavity is reduced prior to detonating an explosive charge within the first tubular member to weld the members together. The cavity may be subdivided into a plurality of zones by further seals, the pressure in the zones being separably adjustable so as to be able to control the pressure difference across each seal.
    Type: Grant
    Filed: October 10, 1979
    Date of Patent: September 8, 1981
    Assignee: Vickers Limited
    Inventors: Terence Sim, Keith Allen
  • Patent number: 4285457
    Abstract: An apparatus for soldering printed circuit boards includes carriers each adapted for holding a printed circuit board and conveyed successively through a soldering zone to dip each printed circuit board into molten solder contained in a vessel. The vessel is disposed between a pair of laterally spaced apart track members which are engageable two front and two rear wheels of the carrier to support the carrier and the printed circuit board generally in the horizontal state throughout the movement thereof along the track members. Each track member has a first and a second depression at such locations that the two front and the two rear wheels can simultaneously position in the first and second depressions, respectively. Each depression has a depth sufficient to permit the printed circuit board to be dipped into the molten solder when the four wheels travel therealong.
    Type: Grant
    Filed: December 18, 1979
    Date of Patent: August 25, 1981
    Inventor: Kenshi Kondo
  • Patent number: 4284109
    Abstract: In a hand-held power tool (10) for wrapping conductor around an electrical terminal, a drive means (14, 34 and 42) is selectively engaged with a clutch (58) mounted on a drive shaft (44) journaled within index means (62) in axial arrangement within a case (12). The drive means (14, 34 and 42) and index means (62) are secured to the case (12) by means of circular tongue and groove structure of radially stepped configuration. Resilient ring members (60) are frictionally engaged between the drive means (14, 34 and 42) and the drive shaft (44) to provide for gradual arrest of the drive means after disengagement of the clutch means (58) and stoppage of the drive shaft by the index means (62). A trigger (22) within the case (12) controls actuation of the drive means (14, 34 and 42) and engagement of the clutch means (58) therewith.
    Type: Grant
    Filed: October 19, 1979
    Date of Patent: August 18, 1981
    Assignee: Cooper Industries, Inc.
    Inventors: Paul R. Kilmer, Roger M. Bula
  • Patent number: 4284225
    Abstract: A conveyor device containing transport frames, each of which is structured for receiving a printed circuit or wiring board carrying circuit components and guided at their leading and their trailing corners by related guide tracks, leads the transport frames to a solder bath, where the transport device lowers the transport frames together with the printed circuit boards towards the solder bath and again raises the same therefrom. During the course of travel of a transport frame containing a printed circuit board carrying one or more of the circuit components through the solder bath one side of the printed circuit board is immersed into the solder bath and then again lifted out of the solder bath.
    Type: Grant
    Filed: November 20, 1979
    Date of Patent: August 18, 1981
    Assignee: EMP AG
    Inventor: Fritz Hess
  • Patent number: 4282908
    Abstract: Elongated magnetic articles 12 are transferred directly from a magnetic bin 17 and transported on a member 80 having deep slots 84 to retain the articles 12 for treatment. In a preferred example, the articles 12 include some articles 13 having undesirably shaped leads 14 and the treatment comprises lead straightening.A system of magnets 30 generates a magnetic field in the bin 17 which suspends and orients a supply of the articles 12 and 13 such that a dense, rotating pattern of articles is formed and urged against member 80. A pair of supports 57 and 58 limit the depth of the slots 84 at a first level to prevent more than one article 12 or 13 to enter therein. As an entered article 12 or 13 advances beyond the supply of articles, the supports 57 and 58 are discontinued and the entered article moves to a second level.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: August 11, 1981
    Assignee: Western Electric Co., Inc.
    Inventors: Kristen E. Bankes, Anderson F. Johnson, Jr., Donald M. Large, Fred J. Reinhard
  • Patent number: 4282907
    Abstract: A strapping tool for tensioning a loop of strap having first and second strap portions about an article is provided with a tension sensing mechanism which includes a gripper member for gripping the second strap portion and restraining it from movement during tensioning of the loop. A first arm is pivotally mounted to the tool frame for pivoting movement in a first direction and in a second, opposite direction. A first spring biases the first arm in the first direction. A second arm is pivotally mounted on the first arm for pivoting movement in the first and second directions away from and towards the strap portions, respectively. A second biasing spring is provided for biasing the second arm in the second direction.
    Type: Grant
    Filed: October 10, 1979
    Date of Patent: August 11, 1981
    Assignee: Signode Corporation
    Inventors: Robert J. Massion, Peter Lems, Robert J. Nix
  • Patent number: 4280665
    Abstract: Liquid fertilizer is produced by mixing dry fertilizer components with water. The combination is introduced into a first cyclone separator which removes the larger chunks of material from the mixture and discharges them into a crusher containing a revolving paddle wheel. The smaller chunks and the solution are passed to a second cyclone separator where the smaller chunks are removed and passed to the same paddle wheel. The solution containing the dissolved material is passed on to a holding tank. The chucks which were passed to the paddle wheel are broken up by impact with the paddle wheel and the paddle wheel housing and thereafter fall through a discharge chute and become remixed with fluid from the holding tank or storage vat. The fluid and crushed particles are recirculated through the cyclones and crusher or impactor until all particles have become dissolved into the solution.
    Type: Grant
    Filed: April 24, 1979
    Date of Patent: July 28, 1981
    Inventors: Clyde O. Adams, III, James F. Fitch, Jr.
  • Patent number: 4279277
    Abstract: Apparatus for manufacturing dynamoelectric field windings having plural edge would coils formed from wire strapping includes a mandrel with a plurality of cores pieces. The mandrel is intermittently rotated about a first axis to present the core pieces to a winding station and rotated about a second axis to form an edge-wound coil about the core piece then present at the winding station. A wire feed and guide assembly having a wire forming head through which the strapping extends to the winding station assists in edge bending the strappng to form coils on the core pieces and is moved both vertically and horizontally to assist in edge bending transition strapping portions between successively wound coils. Also disclosed are a wire hook forming tool for forming a hook at the leading end of the strapping with which such leading end is held fixed to the mandrel, a wire cutting assembly for cutting the strapping to proper lengths and a movable tooling for shaping the windings as they are wound.
    Type: Grant
    Filed: September 13, 1979
    Date of Patent: July 21, 1981
    Assignee: The Globe Tool & Engineering Company
    Inventors: Kenneth E. Peck, Jr., Harold I. Pearsall
  • Patent number: 4278207
    Abstract: A breaking machine having a disintegrator module, storage shaft, and a regulating shaft. Fibers are fed into a disintegrator module of the breaking machine and are thereafter led into a storage shaft. At this point, the fibers are alternatively exited from the machine or fowarded to a regulating shaft for recycling to the disintegrator module. The cycle may be reproduced several times and is automatically controlled by a control panel where preselected digital values are set to control the operation and cycling of the machine.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: July 14, 1981
    Inventor: Andre Morel
  • Patent number: 4278310
    Abstract: A percussively-ignited photoflash lamp having an hermetically-sealed glass envelope containing no glass-to-metal seals therein. Ignition of the lamp is achieved by applying a percussive force (e.g. striking) to an external surface of the envelope which results in actuation of an ignition means disposed within the envelope. The ignition means, preferably a frictionally disposed, spring-loaded wire having a quantity of pressure sensitive primer thereon, ignites a quantity of shredded combustible material (e.g. zirconium) within the envelope to produce the desired flash. A method of making the lamp is also described.
    Type: Grant
    Filed: December 5, 1979
    Date of Patent: July 14, 1981
    Assignee: GTE Products Corporation
    Inventors: John F. Waymouth, Andre C. Bouchard, Richard A. Fowler, Harold H. Hall, Jr.
  • Patent number: 4277013
    Abstract: A method for braze-assembling metal components having low softening temperatures is provided, whereby selective cooling of specific regions of stabilized dimensions with the aid of heat sinks prevents softening of the metal components at and proximal to the specific regions of stabilized dimensions.
    Type: Grant
    Filed: August 17, 1979
    Date of Patent: July 7, 1981
    Assignee: Owens-Illinois, Inc.
    Inventor: Louis Spanoudis
  • Patent number: 4274602
    Abstract: A rotary grinding disc in an apparatus for refining fibrous pulp material, comprising a plurality of arcuate grinding plate segments disposed annularly about the disc and supported thereon by means of wedge-shaped tongues projecting from the segment plates and dovetailed into grooves of corresponding profile in the disc, the wedge-shaped tongues and dovetail grooves decreasing in width from an outer radial portion toward an inner radial portion, or vice versa, for wedging the plate segment into the disc. The plate segments may be additionally secured against displacement by the effect of the centrifugal force during rotation of the disc by means of a peripheral ring surrounding the disc and engaging the wedged tongues.
    Type: Grant
    Filed: February 28, 1979
    Date of Patent: June 23, 1981
    Assignee: Defibrator Aktiebolag
    Inventor: Johan G. I. Johansson
  • Patent number: 4274576
    Abstract: A semiconductor chip mounted on a substrate by solder columns connecting one side of the chip to the substrate, is removed from the substrate by cooling the unconnected side of the chip to embrittle the solder columns and then twisting the chip with small angle rotational motion to shear the columns at their midpoints. A mechanism for cooling and rotating the chip makes use of the cooling substance to minimize the contact of the substrate with the cooling substance.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: June 23, 1981
    Assignee: International Business Machines Corporation
    Inventor: Rafique S. Shariff
  • Patent number: 4274450
    Abstract: The specification discloses a kit for making a universal clip. The kit includes a base having a horizontal top surface and a vertical side surface. Mounting apertures are disposed in the base for receiving fasteners to mount the base on support structure. A metallic cylinder and a pin extend upwardly from the top surface of the base spaced apart at a predetermined distance. The base also includes two horizontal bores of different bore depths and an oblique bore extending through the top and side surfaces for use in forming a tip on the universal clip. The universal clip is formed from a metallic wire that is wrapped around the cylinder to form a spring loop and forced against the pin to crook the wire to form two arms. A tip is formed on the end of each arm by bending the ends of the wire using the two horizontal bores in the base.
    Type: Grant
    Filed: August 6, 1979
    Date of Patent: June 23, 1981
    Assignees: Michael Andrew Sproles, Dennis Gary Decker, Rex Houston, Larry Wayne Castleberry
    Inventor: Gail W. Doerge
  • Patent number: 4274600
    Abstract: A method of grinding wood under pressurized conditions in a grinder according to which wood is fed in batches into a pressurized gas-filled grinding chamber provided with a rotary grinding means. The wood batches are fed through a feeding chamber provided with means for sequentially opening and pressure-tightly closing said feeding chamber from two sides in and respectively out of communication with the atmosphere and said grinding chamber respectively. The groundwood stock is discharged from the grinding chamber through a pressure lock formed by the groundwood stock. In this way feeding of the wood batches into the grinding chamber and the discharging of the groundwood stock out from said grinding chamber are carried out as sluicing steps, whereby a continuous pressure can be maintained in the grinding chamber in spite of feeding of new wood batches and discharging of groundwood stock.
    Type: Grant
    Filed: January 24, 1979
    Date of Patent: June 23, 1981
    Assignee: OY. Tampella AB
    Inventor: Pekka O. Haikkala