Patents Examined by Robert W. Saifer
  • Patent number: 4293271
    Abstract: A device for translating movements in one plane to movements in a perpendicular plane wherein a first member, movable on a frame with a reversible drive, has gripping arms attached to it. A second movable member is also attached to the first member and connected to the arms. The first member has a lock mechanism for the second member, interacting with stops on the frame. The drive is attached to the second member, the first and second members being releasably connected by the lock mechanism. A connector links the arms to the second member which is released from the lock mechanism when the first member as well as the arms have reached an end position. Depending on the setting of the drive, the second member continues its displacement to move the arms, via the connector, perpendicularly to the plane of movement of the first and second members.
    Type: Grant
    Filed: October 16, 1979
    Date of Patent: October 6, 1981
    Assignee: AB Volvo
    Inventor: Arne I. Ronbeck
  • Patent number: 4290724
    Abstract: A pair of conveyor pan immobilizing subassemblies are disclosed for engaging the opposite sides of a conveyor pan to stabilize the pan in a first direction transverse to the conveyed direction of the pan. In one embodiment, each subassembly is comprised of a plurality of pan engagement assemblies, each pivotally mounted for depression in a vertical axis by an off-centered pan, and each spaced further from the conveyor pan in the first direction, such that the pan is serially engaged by the assemblies as a result of pan movement resulting from, for example, loading or unloading of the pan. In another embodiment, the subassembly comprises a roller rotatably mounted for rotation by a pan being moved in the conveyed direction and resiliently mounted for depression by an off-centered pan.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: September 22, 1981
    Assignee: Park Mobile, Inc.
    Inventors: Robert D. Lichti, Frederick D. Hock
  • Patent number: 4290733
    Abstract: A forage stack moving device has a tongue and bed mechanism rigidly secured to each other in which a plurality of endless chain elements pass over a plurality of longitudinal beam members and are driven by a mechanism driving all chains in unison while loading and unloading a stack. The bed mechanism is supported by a pair of fourbar linkages, each having a pair of substantially vertically extending arms pivotally joined to a longitudinally extending carriage member to which are secured a pair of wheels, each longitudinally extending member having a hydraulically controlled extensible member connected to the bed mechanism to move the carriage member and the wheels secured thereto, causing the bed mechanism to tilt for loading and unloading and to be substantially level during transportation of any forage stack on the bed mechanism.
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: September 22, 1981
    Assignee: Lahman Manufacturing Company, Inc.
    Inventor: Fritz Lahman
  • Patent number: 4289278
    Abstract: An electrostatic powder painting device provided with an improved powder electro-charging device is described herein, which painting device comprises a duct for conveying powder suspended in gas, an electrode chamber communicating with a slit formed along the entire inner circumference of said duct, a ring electrode disposed within said electrode chamber and having a substantially large radius of curvature in cross-section, a corona discharge electrode disposed at the center of said duct, gas introduction means into said duct through said slit, a voltage source for applying a voltage between said corona discharge electrode and said ring electrode, and means disposed in the proximity of the outlet end of said duct for regulating an ejection pattern of a powder cloud, whereby said painting device can maintain an highly excellent charging performance over a long period of time when the powder conveyed by the gas is charged with unipolar electric charge and also the most important performance of an electrostatic
    Type: Grant
    Filed: August 22, 1979
    Date of Patent: September 15, 1981
    Assignee: Onoda Cement Co., Ltd.
    Inventor: Tsutomu Itoh
  • Patent number: 4288034
    Abstract: A vehicle mounted spray boom assembly includes a breakaway spray boom and shock absorbing means for absorbing the shock on the boom assembly when a boom returns to normal position after striking an obstacle. The shock absorbing means includes a swing cylinder for rigging in and rigging out the spray boom and a tilt cylinder for tilting the boom when the boom has been rigged out. Upon occurrence of shock after an obstacle is struck, a portion of the hydraulic fluid in the swing cylinder is forced into the tilt cylinder to lift the spray boom to dissipate the shock. In addition, another cylinder may be provided for absorbing shock imparted to the boom due to vertical movement of the boom. Also the swing cylinder and tilt cylinder are hydraulically connected in parallel so that when rig out has been completed, pressurized hydraulic fluid continues to be ported to the tilt cylinder to elevate the end of the boom.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: September 8, 1981
    Assignee: Gerald Widmer
    Inventors: Gerald L. Widmer, Larry J. Gray, Richard H. Pardee
  • Patent number: 4285626
    Abstract: A fork lift truck is equipped with an attachment or fixture for handling a plate glass load. The truck is also equipped with a control system which includes sensing switch means for controlling automatically the operation of the truck to insure safe pick-up of the plate glass load. The control system also includes release switch means for preventing the truck from backing up, following deposit of a plate glass item at a storage area, until the plate glass load fixture has cleared the plate glass item.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: August 25, 1981
    Assignee: Drexel Industries, Inc.
    Inventor: Guido A. Donato
  • Patent number: 4285468
    Abstract: An article for the slow release of volatilizable substances, such as deodorizers, insecticides, repellants and the like, the article being formed from opposed outer and inner wall members joined along their peripheral portions to define a central reservoir portion for receiving and confining a volatile substance. The inner and outer wall member comprises a liquid non-porous but gas permeable flexible polymeric sheet material having an impermeable barrier layer releasably bonded to the outer surfaces thereof. In one embodiment the article is formed from a single strip folded and bonded to itself to form the reservoir. The barrier layer prevents escape of volatilized substance until its removal at the time of desired use. In a further aspect, a strippable adhesive layer is bonded to the outer surface of the second gas impermeable layer and removal of the stripable layer enables adhesive bonding of the article to environmental surfaces.
    Type: Grant
    Filed: May 10, 1979
    Date of Patent: August 25, 1981
    Inventor: Sy Hyman
  • Patent number: 4284270
    Abstract: An automatic document handler adapted to receive a stack of documents to be copied for feeding the documents seriatim to the platen of a copy machine and returning the copied documents to the stack. A combination vacuum-document separator in conjunction with an air knife and a document tray having a "U" shaped pocket therein is provided to assure positive feeding of each document to the platen without misfeeds or multifeeds.
    Type: Grant
    Filed: October 3, 1979
    Date of Patent: August 18, 1981
    Assignee: Xerox Corporation
    Inventor: Morton Silverberg
  • Patent number: 4284383
    Abstract: A filter disc ejector has a base with an upstanding central post and with a surrounding peripheral wall in some portions higher than the post and in other portions lower than said post to expose side portions of the rim of a filter disc cassette on the post.
    Type: Grant
    Filed: January 24, 1980
    Date of Patent: August 18, 1981
    Assignee: The Regents of the University of California
    Inventor: William J. Popendorf
  • Patent number: 4281958
    Abstract: A wheel chair hoist assembly for a vehicle having a body and a roof comprising a transverse support bar within the body secured to the roof. A mount tube with a depending winch mount bracket is reciprocably and slidably supported upon the support bar. A tubular boom, normally positioned within the body, is parallel to and secured to the mount tube and adapted for sliding projection outwardly of the body. A power winch having a drum is supported on the bracket and includes a cable around the drum guidably projected through the boom with its free end mounting a hook adapted to supportably engage a collapsed wheel chair. A manual switch is connected to a power source to energize the winch to elevate the wheel chair, and the boom is manually projected successively inward transferring the wheel chair into the body.
    Type: Grant
    Filed: December 13, 1979
    Date of Patent: August 4, 1981
    Inventor: Bernard E. Molski
  • Patent number: 4281957
    Abstract: A dolly for transporting projectiles of separate loading ammunition has a frame mounted on a pair of spaced rollers and has a manually engageable grip at the end thereof away from the rollers. A curved backing plate is mounted on the frame in front of the rollers and a lever is pivoted to the frame at a height appropriate to the length of the projectile. The end of the lever away from the rollers is provided with pin means to engage the ring in the projectile end closure plug and the other end of the lever is provided with a bail to assist in rotation of the lever to lift the projectile and permit it to swing against the backing plate. Latch means are mounted on the frame to lock the lever in position in which the projectile is raised and is lying against the backing plate. The arrangement of the pins in the lever is such that a pair of smaller diameter projectiles may be lifted onto the dolly at the same time or a single larger diameter projectile may be lifted onto the dolly.
    Type: Grant
    Filed: April 26, 1979
    Date of Patent: August 4, 1981
    Inventors: Richard A. Vishe, Richard A. Koster
  • Patent number: 4281795
    Abstract: A jet pipe arrangement is provided for the propulsion and control of an aircraft, which arrangement includes a first stationary pipe section which has a second pipe section fitted with a thrust nozzle attached thereto. To facilitate a simply constructed and operated control arrangement for rotatably moving the second pipe section with respect to the first pipe section, two pairs of angle levers are disposed about the circumference of the first pipe section. The first pair of angle levers are located opposite one another on the first pipe section and have pivot fulcrums located in the plane parallel to the vertical pivot axis of the second pipe section. The second pair of angle levers are likewise located at respective opposite sides on the circumference of the first pipe section and include pivot fulcrums located in a plane parallel to the horizontal pivot axis of the second pipe section.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: August 4, 1981
    Assignee: MTU Motoren-und-Turbinen-Union Munchen GmbH
    Inventor: Ludwig Schweikl
  • Patent number: 4279385
    Abstract: A hydraulically driven piston pump and nozzle assembly for a high pressure fuel injection system is proposed, in particular one for Diesel engines, which has an assembly for raising the closing pressure for the purpose of accomplishing a rapid valve needle closing at the injection nozzle. The assembly substantially comprises a closing pressure chamber disposed in the region of the valve needle end remote from the valve seat, which chamber communicates via an overflow channel with an auxiliary pump chamber of an auxiliary pump piston which is driven together with the pump piston. At the termination of fuel delivery, fuel under increased pressure is conducted from the auxiliary pump chamber into the closing pressure chamber, from when this pressure is exerted, at least indirectly, upon the valve needle to cause an accelerated valve needle closing.
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: July 21, 1981
    Assignee: Robert Bosch GmbH
    Inventors: Max Straubel, Willi Voit
  • Patent number: 4279563
    Abstract: An unmanned material handling system for servicing a plurality of vertically spaced levels of a structure is provided. This system includes an unmanned, selfpropelled vehicle driven by an electromechanical device such as an electric motor. The vehicle includes an energy storage device, such as a flywheel, for storing energy and for supplying that energy to the electro-mechanical device. The vehicle can be moved from one level to another within the structure by an elevator. One half of a split transformer is embedded in the floor of the elevator and, when the vehicle is disposed thereover, that half of the split transformer is energized and becomes electromagnetically coupled with a second half of the split transformer which is disposed within the vehicle. This coupling provides electrical energy to drive a motor/generator which, in turn, causes the flywheel to rotate and store energy.
    Type: Grant
    Filed: July 5, 1979
    Date of Patent: July 21, 1981
    Assignee: American Sterilizer Company
    Inventor: William R. Miller
  • Patent number: 4278389
    Abstract: Invalid lift mechanism including framework supported on the underlying frame of a trailer which supports an elevatable platform. The platform is also pivotable to swing it from a horizontal to a vertical position. Cables and winches are provided for raising the platform and pivoting the platform.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: July 14, 1981
    Inventor: John H. Konkle
  • Patent number: 4277023
    Abstract: This is concerned with a so-called center pivot irrigation system in which a string of pipe is supported on wheeled towers at intervals and pivots about a so-called center pivot or water supply either intermittently or continuously so that it waters or irrigates a generally circular area. This is more specifically concerned with an arrangement and a control for watering the corners or noncircular area of a field in a manner which is greatly simplified over a number of previous approaches.
    Type: Grant
    Filed: May 27, 1977
    Date of Patent: July 7, 1981
    Assignee: Lindsay Manufacturing Company
    Inventors: John L. Anderson, John C. Davidson, Henry W. Schaaf, Charles H. Meis
  • Patent number: 4277214
    Abstract: A barge loading device comprising a vertically disposed support tower positioned between a pair of barges or the like. A boom is rotatably mounted on the support tower and extends outwardly therefrom. A vertically disposed telescopic spout extends downwardly from the outer end of the boom. A conveyor is provided on the support tower and the boom for supplying grain or the like to the upper end of the spout for delivery to one of the barges. The boom may be rotatably moved relative to the support tower to facilitate the loading of the barges on either side of the tower. The spout may be tilted to either side of its normally disposed vertical position and may be rotated about its longitudinal axis. The combination of the rotatable boom, tilting and rotating spout permits greater areas to be filled in the barges.
    Type: Grant
    Filed: December 11, 1979
    Date of Patent: July 7, 1981
    Assignee: Nott Company
    Inventors: Howard C. Mahle, Kenneth L. Wesenberg
  • Patent number: 4277031
    Abstract: A dual gas supply blow torch has two gas inlets and a gas outlet for connection to a nozzle; a mixing and control valve operated by a single control device is interposed between the inlets and the outlet and this comprises a core axially displaceable in a bore provided with valve seatings. For each gas inlet the core has a valve formed by an annular elastic sealing joint engageable with a corresponding seating, and an escape passage is provided having a cross-section which can be varied by elastic deformation of the sealing joint in order to control the gas flow. At least one of the two valves has means for proportioning the gas flow rates.
    Type: Grant
    Filed: September 27, 1979
    Date of Patent: July 7, 1981
    Assignee: Anciens Etablissements Leon Guilbert & Fils
    Inventors: Francis Moumaneix, Cesar Marietta
  • Patent number: 4277004
    Abstract: The present invention provides an integrated cover and aerosol activator for an aerosol spray container so that the cover does not have to be removed from the container in order to actuate the aerosol activator. The combined cover-activator is also provided with an annular locking ring on the inside surface for engaging an annular lip on the container for locking the aerosol activator in engagement with the aerosol valve when it is actuated. The cover is also provided with spring members for allowing the aerosol activator to be moved in a substantially-vertical direction to vertically move and actuate the stem of the aerosol valve. In another form of the invention, one spring is provided for allowing the activator to be moved at an angle to bend and actuate the stem of the aerosol valve.
    Type: Grant
    Filed: October 15, 1979
    Date of Patent: July 7, 1981
    Inventor: John J. Barlics
  • Patent number: 4277022
    Abstract: Apparatus for controlling the delivery of material from a moving vehicle using a "closed loop" feedback control. The error signal to close the loop is derived from a continuous measurement of the actual rate of mass flow of material compared to the desired or computed rate of mass flow for a range of vehicle speeds. The vehicle speed is measured and used to modify the desired rate of mass flow in order to achieve a controlled mass per unit area of ground surface.
    Type: Grant
    Filed: December 14, 1978
    Date of Patent: July 7, 1981
    Assignee: Dennis W. Holdsworth
    Inventors: Dennis W. Holdsworth, Ernst Adler