Patents Represented by Attorney William D. Hall
  • Patent number: 5045217
    Abstract: A barge has a submersible pump which pumps sea water from a depth of about three feet, heats the water, and uses a boom to direct the heated sea water on the rocks and sand on the beach. The oil which is washed from the beach enters the sea around the barge but is contained by a containment boom. The floating oil in the water around the barge is then recovered by conventional skimming techniques. The sea water from the pump is heated by oil-fired burners. The temperature of the water may be controlled by regulating the amount of heating oil fed to the burners or by varying the number of oil-fired heaters used. The boom is a 100 foot long articulated structure which can be moved across the beach at will to direct the hot water on any desired part of the beach. Either a series of nozzles producing high intensity fan sprays on a series of nozzles producing cone sprays may be selected.
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: September 3, 1991
    Inventors: Charles B. Ronan, William R. Breedlove, Siegfried Jokiel
  • Patent number: 5040797
    Abstract: A three-dimensional geometric puzzle comprised of elongated members, each having a rectangular cross-sectional shape. The members are arranged in pairs in side-by-side abutting relationship. In addition, each pair of members intersects the other pairs perpendicularly and substantially at its midpoint, thus forming a star-shaped configuration. The members can be assembled to and disassembled from the star-shape configuration in a number of predetermined order.
    Type: Grant
    Filed: January 14, 1988
    Date of Patent: August 20, 1991
    Inventor: Dirk H. Dykstra
  • Patent number: 5019339
    Abstract: An odor control system neutralizes odors from any source such as those from a sewage disposal plant. The odor control system recirculates a brine solution containing NaOCl. This recirculated solution contacts the unwanted odors to neutralize them. Sufficient NaOCl is added electrochemically to the solution to neutralize the unwanted odors under normal operating conditions. When there are peak odor conditions the unwanted odors exceed the capacity of the electrochemically produced NaOCl. During such peak conditions, supplemental concentrated NaOCl is added from a storage tank. The concentration of the NaOCl in the soolution is determined by sensing the oxidation reduction potential (ORP) in the solution to produce an ORP signal. The ORP signal controls the concentration of NaOCl in the solution including that supplied electrochemically as well as that supplied from the storage tank.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: May 28, 1991
    Assignee: Pacific Engineering and Production Co. of Nevada
    Inventors: Lawrence V. Keeney, William B. Misch, James H. Parrott
  • Patent number: 5010589
    Abstract: Clothing for hunters or soldiers, having the usual design for purposes of camouflage also has fringe, in the form of a multiplicity of closely spaced elongated elements, hanging below the sleeves. The fringe is removable. Scents or lures may be applied to the fringe. If it is desired to change from one scent or lure to another, several fringes may be provided each with a particular scent or lure. The scent or lure may, therefore, be easily changed by merely changing the fringe and without washing the garment.
    Type: Grant
    Filed: January 25, 1989
    Date of Patent: April 30, 1991
    Inventor: Douglas N. Hamilton
  • Patent number: 4999864
    Abstract: A bed having upper and lower bunks. In order to make it easy to "make" the bed the upper bunk can be moved sidewise and then tilted to give a person desiring to make the bed easy access to the upper bunk. The axis about which the upper bunk is tilted may be selected to enable the tilted bunk to be higher or lower as desired. The movement of the bunk is provided by cam surfaces on the frame of the bed and cam followers on the mattress trays of the upper bunk. One set of cam followers act as a pivot to enable the rotation of the upper bunk. Locks are provided to hold the mattress tray in either its normal position or its tilted position.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: March 19, 1991
    Inventor: Paul B. Crews
  • Patent number: 4997335
    Abstract: A double drop trailer has a central storage or cargo section whose floor is at a lower level than the floors of the front and rear storage (cargo) sections. A first lift having upper and lower cargo platforms is located in the central cargo section, and a second lift is located in the rear section. The first lift is initially positioned so that its lower platform is level with the floor of the front section. Cargo is then moved through the rear door, through the rear section, across the lower storage platform of the first lift and placed on the floor of the front section. More cargo is then moved through the rear door and placed on the lower storage platform of the first lift. The first lift is then lowered. Additional cargo is then moved through the rear door onto the second lift and this lift is thereafter raised permitting this cargo to be placed on the upper storage platform of the lift. Finally, more cargo is moved through the rear door and loaded into the rear section of the trailer.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: March 5, 1991
    Inventor: Dayton E. Prince
  • Patent number: 4971487
    Abstract: A method for simultaneously cutting and chamfering involute gears. The pressure angle .alpha..sub.1 and module M of the teeth of a hob for cutting the teeth are selected with respect to the nominal pressure angle .alpha..sub.0 and nominal module m of the gear to be cut according to the following equation: m cos .alpha..sub.0 =M cos .alpha..sub.1. According to the present invention, a single hob cutter is sufficient to cut gears having a wide range of numbers of teeth.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: November 20, 1990
    Assignee: Kabushiki Kaisha Technomax Eighty Five
    Inventor: Shigeyoshi Nagata
  • Patent number: 4969273
    Abstract: A guiding pad for use in marking-out comprises a paper template 14 to one surface of one edge zone of which is adhered a foam plastics layer 6, upon the external surface of which is a medium tack adhesive layer 9 covered with a protective peel-off layer 10. On the other surface of the edge zone is a weaker adhesive layer 7 covered by a protective peel-off layer 8. One of the two surface portions of the template layer 14 not covered by adhesive have printed indications of an intended fold line of the layer 14 and of intended positions of striking plate screws of a magnetic latch, whilst the other of those two surface portions has printed indications of intended positions of latch body fixing screws and of a magnetically soft material rod.
    Type: Grant
    Filed: December 14, 1989
    Date of Patent: November 13, 1990
    Inventor: Roger C. Richards
  • Patent number: 4961333
    Abstract: This specification describes an improved lock of the type described in my U.S. Pat. No. 4,796,447, granted Jan. 10, 1989. In locks of that type, a key is inserted into a key-cylinder and then the key sets a series of transfer tumblers that, in turn, set a series of lock opening elements. As the key-cylinder is rotated, the transfer tumblers are moved out of contact with the elements. Only at this time can the lock be opened, provided that the elements had been set correctly. The improvement in this specification permits the lock to be opened by more than one key. In other words, this lock permits "master-keying".
    Type: Grant
    Filed: January 5, 1989
    Date of Patent: October 9, 1990
    Inventor: Jacob Rabinow
  • Patent number: 4960014
    Abstract: An extension handle for a wrench is provided. The extension handle is elongated and has two U-shaped elements in planes perpendicular to the length of the extension handle. One of these U-shaped elements has its open and facing in one direction and the other U-shaped element has its open end facing in a direction opposite to the direction that the open end of the first element faces. This permits the extension handle to receive wrenches and to apply torque to the wrenches. In order that the extension handle will receive wrenches that are not flat, the U-shaped elements hold the wrenches in spaced relation to the body of the extension handle.
    Type: Grant
    Filed: September 19, 1989
    Date of Patent: October 2, 1990
    Inventor: Roy C. Kelley
  • Patent number: 4951649
    Abstract: The apparatus for heating and generating infrared rays has a heating apparatus for indirectly heating a heat medium such as air and water, by a combustion heat and a radiator, wherein a branch combustion gas passage is provided for a combustion gas passage through which the combustion gas in said heating apparatus flows at temperatures of 400.degree. C. or more and 800.degree. C. or less, and said branch combustion gas passage and said radiator are connected.
    Type: Grant
    Filed: February 3, 1988
    Date of Patent: August 28, 1990
    Inventor: Katsuyoshi Inouchi
  • Patent number: 4942749
    Abstract: This invention describes a lock where each of several tumblers is shaped as a disc and each has gear teeth along parts of its periphery. The teeth mesh with two partial racks that are formed on two side bars. These side bar operate in a manner similar to side bars in many popular locks of to-day. These tumblers are set or re-set into positions by a double bitted key that passes thru a central opening in each tumbler. By rolling the tumblers along the racks on the side bars the lock can be opened or closed. The key can be changed by merely opening the lock with one key and closing it with another.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: July 24, 1990
    Inventor: Jacob Rabinow
  • Patent number: 4936273
    Abstract: A cylinder of a diesel engine that is used to drive a vehicle is decompressed by opening its exhaust valve. When the engine brake of the vehicle is applied a first high pressure fluid is applied to one side of a shuttle valve moving it in one direction and applying the high pressure to open the exhaust valve. The driver may also decompress the engine, during starting of the engine, for example, by throwing a switch on the vehicle dashboard that starts a fluid pump that applies high pressure fluid to drive the shuttle valve in another direction and to open the exhaust valves. The shuttle valve isolates the two sources of high pressure fluid.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: June 26, 1990
    Inventor: Vaughn D. Myers
  • Patent number: 4934701
    Abstract: A puzzle is provided in which several layers form a pyramid or similar configuration. The device has a base for supporting five layers of pieces. Each of the first three of these layers comprise corner pieces at each corner. Between the corner pieces, of each of the three layers, are side pieces. The first layer has three, the second layer two, and the third layer one side piece(s) between each pair of corner pieces. The inner sides of the side pieces, of the three layers, mate with center piece(s) to present a problem to the person assembling the puzzle. Above the third layer is the fourth layer comprising four corner pieces. The fifth layer is a single piece constituting a crown.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: June 19, 1990
    Inventor: Victor G. Ting
  • Patent number: 4909529
    Abstract: A bicycle has a belt and pulleys in place of the usual chain and sprockets. Each pulley has three (more of less) racways separated by discs (pulley walls). The discs (pulley walls) have openings that permit the belt to be shifted from one raceway to another raceway. A rotatable arm pivoted to the frame of the bicycle controls the shifting of the belt to the desired raceways. One end of the arm applies lateral pressure to the belt just before it arrives at the pulley associated with the driving pedals of the bicycle, to shift raceways for the driving pulley. Similarly the other end of the arm applies lateral pressure to the belt just before it enters the driven pulley to shift raceways of that pulley. Each end of the arm is biased by a main spring to apply vertical pressure to the belt to maintain it tight.
    Type: Grant
    Filed: September 28, 1988
    Date of Patent: March 20, 1990
    Inventor: Lowell L. Maguire
  • Patent number: 4905853
    Abstract: A trash can has a rim at its upper end. A divider, made up of a plurality of arms, cooperates with the rim to form a plurality of open spaces at the top of the can. The arms of the divider are supported by sockets mounted on the rim. Plastic trash bags hang below the open spaces. The bags are supported by projections or hooks on the divider and on the rim of the can. A cover or lid for the trash can has a generally vertical sidewall having a door above each trash bag.
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: March 6, 1990
    Inventor: Glenn G. Strawder
  • Patent number: 4901192
    Abstract: An electrical circuit is employed for receiving current from a small battery and converting it into a large intermittent force which will move a heavy load. In the example shown the load is a clock spring which is wound in small increments by the large intermittent force. A capacitor is charged by the battery. The battery and capacitor, therefore, temporarily have a higher output current than the battery alone. The output of the battery and capacitor is applied to a solenoid for attracting an armature and providing the large force. The resulting movement of the armature opens the circuit to the solenoid but the solenoid remains energized temporarily since a small capacitor is across it. When the armature returns to its normal off position it reenergizes the solenoid. The resulting on and off operation of the solenoid continues until the clock spring is fully wound.
    Type: Grant
    Filed: November 18, 1987
    Date of Patent: February 13, 1990
    Assignee: Frank M. Ellison
    Inventor: Nelson S. Smith
  • Patent number: 4899609
    Abstract: The gears according to the present invention have a unique tooth-profile in which the radius of curvature repeatedly increases and decreases from the pitch line in the direction of addendum and deddendum of a tooth without monotonously changing, and at the point where the relative of curvature is minimum, the center of the radius of curvature is positioned on the pitch line. Specifically, the curvature of the tooth-profile curve is a function which is not monotonously varied, is continuous and is capable of being differentiated, and a locus of the center of curvature forms a series of continuous curves which exist near the pitch circle. Forming the tooth-profile thus enables the relative of curvature to be brought from the value in the involute gear near that of a Wildhaver-Novikov type, with the contact interval being more than one.
    Type: Grant
    Filed: March 18, 1988
    Date of Patent: February 13, 1990
    Assignee: Kyouiku Haguruma Kogko Kabushiki-Kaisha
    Inventor: Shigeyoshi Nagata
  • Patent number: 4890543
    Abstract: A light metal piston for internal combustion engines has a pair of inserts on the inside of upper piston skirt made of a material of lower thermal expansion coefficient than that of the light metal, such as steel. Each insert has a pair of bands which are joined by a connecting portion of the insert in the region of the gudgeon pin boss. Each band extends circumferentially away from the gudgeon pin boss, so as to control thermal expansion of the piston skirt. A free end of each band are bent inwardly, so that the insert can be set firmly on the mold core of the piston during casting operation by snapping the bent portions of the insert into the grooves on the mold core.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: January 2, 1990
    Assignee: Izumi Automotive Industry Co., Ltd.
    Inventors: Masaaki Kudou, Tosio Ogiwara
  • Patent number: 4885921
    Abstract: A cover for the various locks that are often placed a few inches above the door-knob is provided. The cover is an elongated plate spaced from the door and having sidewalls extending almost to the door. The cover has a downwardly extending portion that surrounds the shaft of the door-knob and has a hole through the shaft of the door-knob and has a hole through which the door-knob passes when the cover is rotated on its hinges to an open position. A jamming device has an indent for receiving the key or handle of one of the locks on the door. The jamming device bears against the shaft of the door-knob and prevents the key or handle of the lock from turning. Hence, the lock remains locked when the jamming device is used.
    Type: Grant
    Filed: November 8, 1988
    Date of Patent: December 12, 1989
    Inventor: Vera Sharav