Patents Represented by Law Firm Olson, Trexler, Wolters, Bushnell & Fosse, Ltd.
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Patent number: 4109346Abstract: There is disclosed a pivot and support mounting arrangement for a pivotal door arrangement which permits the door to be adjusted quite easily with respect to the door frame. The arrangement includes a pintle assembly carried by the door and a support arrangement mounted proximate to a lower corner of the door frame, and receiving a projecting portion of the pintle assembly. The support arrangement includes a bracket having an elongate channel-like opening in which is mounted a pintle support block, and selective engageable means to prevent relative movement. A recess is formed in the pintle support block to receive the pintle end portion, and spring means is associated with the support block tending to bias it upwardly. In the assembled condition the weight of the door will overcome the biasing force provided by the spring and the engageable means will be inter-engaged to preclude movement of the support block relative to the bracket.Type: GrantFiled: May 31, 1977Date of Patent: August 29, 1978Assignee: Lawrence Brothers, Inc.Inventor: Robert E. Strozier
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Patent number: 4108484Abstract: A collapsible grapple comprises a pair of selectively assembleable members. The first member includes a pair of elongated shanks or side elements confluent at their upper ends to form a single part and defining between them an elongate slot. The second member similarly comprises a pair of elongated shank or side elements confluent at their upper ends to form a single part and defining between them an elongate slot. The side elements of the second member converge below their upper ends to form a first loop, then part and converge again below the first loop to form a second loop between the first and second convergences. The lower ends of the side elements of both members extend away from the elongated slot and have pointed ends to define a pair of hooks lying in substantially the same plane as the side elements.Type: GrantFiled: January 4, 1977Date of Patent: August 22, 1978Inventor: Richard R. Malroit
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Patent number: 4106252Abstract: A building structure is disclosed comprising a plurality of rib members and a plurality of panel members. The rib members comprise metal extrusions which are adapted to effect interconnection of said panel members to form structures such as roofs for silos, tanks, barns and other buildings, or alternately to define wall partitions or the like. Also provided is a wedge member adapted to be attached to the rib member by a bolt or the like for securing the panel members to the rib member.Type: GrantFiled: January 27, 1977Date of Patent: August 15, 1978Assignee: Railoc Company, Inc.Inventor: Peter T. Rutten
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Patent number: 4106877Abstract: A pin has a pilot point of uniform width throughout 360.degree. and a body containing a cross section of arcuate polygonal lobular configuration, also of uniform width but wider than the point. The pin may be driven into a circular hole in a member such that the lobes of the pin are elastically deformed in compression to enhance the grip between the pin and the member and with there being regions of stress relief on the member intermediate the lobes. The hole in the member may also be reshaped into a lobular form. The uniform body width approximates the minimum diameter of the hole in the member. Furthermore, the pin is of a range of lobulation sufficient to span a wide range of hole diameter tolerances.Type: GrantFiled: September 16, 1976Date of Patent: August 15, 1978Assignee: Research Engineeering & Manufacturing, Inc.Inventor: Peter J. Ferguson
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Patent number: 4106837Abstract: An electrical connector is disclosed comprising a connector block provided with an opening therethrough and an electrically conductive terminal having a portion thereof projecting outwardly of the block at the opening. The electrical terminal is also provided with means in its outwardly projecting part for terminating an electrical conductor thereon. The part of the terminal in the block has opposed side faces having at least two opposed bosses formed thereon for retaining the terminal in the block.Type: GrantFiled: December 9, 1976Date of Patent: August 15, 1978Assignee: Reliable Electric CompanyInventor: Edward S. Paluch
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Patent number: 4106291Abstract: A hydrostatic drive is disclosed in combination with a machine tool such as a sand core molding machine. A machine of this type comprises a fixed carriage and a core molding die mounted for rotation on the carriage. The drive includes a reversible fluid power motor having an output shaft. The motor output shaft is connected to a fail safe fluid power brake, and the brake shaft is, in turn, connected to a power transmission unit. When fluid power is applied to the brake and the motor, brake override means operate to release the brake to permit the motor shaft, brake shaft and tranmission to be turned by the motor and thereby operate the movable die.Type: GrantFiled: March 31, 1977Date of Patent: August 15, 1978Assignee: Lambert Brake CorporationInventor: George H. Morgan
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Patent number: 4104693Abstract: A gas-filled surge arrester includes a pair of electrodes extending inwardly of an insulating spacer. The electrodes have end faces which are aligned oppositely within the insulator to define an arc or discharge gap therebetween. Each of the electrodes includes at least one cavity formed in the end face thereof adjacent and extending away from the discharge gap. The cavities are lined with a substance of relatively high electron emission ability.Type: GrantFiled: March 18, 1977Date of Patent: August 1, 1978Assignee: Reliable Electric CompanyInventors: Toshiharu Toda, Daizo Shigemori
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Patent number: 4103973Abstract: An asphalt pavement milling machine is disclosed which includes mechanism for precisely controlling the depth of cut made by a rotating milling head carried on a machine frame. The depth-of-cut control apparatus includes a shoe adapted to slide over the pavement, and fluid power cylinder means which urge the shoe toward and away from the head-carrying frame through a rocker arm and a vertical slide. A similar device can be mounted upon an opposite side of the machine frame. A fluid power system interconnects the operating cylinders to level the frame and provide smooth, stress-free operation.Type: GrantFiled: April 6, 1977Date of Patent: August 1, 1978Assignee: Cutler Repaving, Inc.Inventor: Earl F. Cutler
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Patent number: 4103811Abstract: There is disclosed a carrier for a multiplicity of articles such as boxes, cans or other containers and comprising a flattened tube of plastic sheet material which is transversely slit partially therethrough at successive locations to present successive sections thereof to be unfolded to provide interconnected annular sections or rings for encircling the articles.Type: GrantFiled: October 14, 1975Date of Patent: August 1, 1978Assignee: Illinois Tool Works Inc.Inventor: Ronald C. Owen
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Patent number: 4102013Abstract: A plug is offered to make relatively easy and simple the assembly and pre-torquing of a spring-loaded hinge for doors and the like. These hinges comprise a pair of hinge leaves, each leaf defining at least one hollow hinge knuckle aligned with a hinge knuckle defined on the opposite leaf. Through the knuckles, a bi-ended torsion spring mechanism is inserted. A first plug is affixed within one hinge knuckle and engages one end of the torsion spring mechanism. At the opposite knuckle and second spring end, the novel second plug is affixed. This second plug includes a spring-engaging finger and a capstan body adapted to fit snugly within the knuckle. Atop the capstan body is a removable head which can be grasped by a wrench or like torsioning device. After this second plug is inserted in the hinge, the spring end is grasped and torqued by rotating the plug.Type: GrantFiled: December 13, 1976Date of Patent: July 25, 1978Assignee: Lawrence Brothers, Inc.Inventor: Robert L. Newlon
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Patent number: 4102194Abstract: An electronic bin temperature monitor is disclosed which automatically scans a plurality of temperature sensors which are disposed about the interior of a grain storage bin so that the temperatures at various locations in the stored grain can be monitored. The temperature sensors, which are selected silicon diodes with a linear negative temperature coefficient, are connected by cables to an external monitoring unit, which is provided with digital readouts to display both the location number of the sensor at which the temperature is being read and the temperature at that sensor location. Also provided, in common to all the sensors in a particular bin, is a pre-set alarm function which causes an external alarm device to be triggered, whenever any individual sensor temperature reaches or exceeds a pre-set temperature.Type: GrantFiled: September 20, 1976Date of Patent: July 25, 1978Assignee: Dickey-john CorporationInventor: William T. Eng
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Patent number: 4100538Abstract: A seed level sensor for automatic seed planting apparatus is provided with connecting plugs for connecting the seed level sensor to electrical leads presently existing between a seed dispensing sensor and a seed planter monitor. The seed level sensor includes a switching device connected in one of the lines of the electrical leads between the seed dispensing sensor and the seed planter monitor and which interrupts the operation of the seed dispensing sensor when the level of seeds within the hopper is below a predetermined level. An indicator associated with the seed planter monitor is energized for a given period of time when seeds are below the predetermined level, to alert the operator that a low seed level exists in the hopper.Type: GrantFiled: October 3, 1975Date of Patent: July 11, 1978Assignee: Dickey-john CorporationInventor: John T. Knepler
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Patent number: 4098433Abstract: A broadcast spreader having one or more spinners driven by hydraulic motors and a material delivery conveyor or auger driven by a hydraulic motor is provided with a hydraulic system including a flow and pressure-compensated variable displacement pump and pressure-compensated control valves respectively for the spinner and conveyor motors connected so that the volume of fluid delivered by the pump corresponds to the demands of the motors.Type: GrantFiled: February 9, 1977Date of Patent: July 4, 1978Assignee: Dickey-john CorporationInventor: Frederick Frank Oligschlaeger
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Patent number: 4097959Abstract: There is disclosed an improved load supporting hinge structure which includes bearing units disposed between adjacent knuckles of the leaves of the hinge to afford both the desired support and smooth operation thereof. Each of the knuckles of the hinge structure includes a central axial bore, the bores being aligned coaxially. Each of the ball-bearing units includes an axially outer and an axially inner race member and a train of bearing members mounted for movement therebetween. The respective race members are constructed so that the bearing unit can accommodate both vertical and horizontal loads, with uniform loading of the load supporting bearing elements being attained by provision for slight relative movement between the race members and the bearing elements.Type: GrantFiled: March 31, 1977Date of Patent: July 4, 1978Assignee: Lawrence Brothers, Inc.Inventor: Larry K. Johnson
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Patent number: 4098234Abstract: In an engine control system, particularly for fuel injection, the frequency of a variable frequency clock is compared with an output signal from a memory device and the difference used to control an engine function. The frequency of the clock is determined by the collector current of the transistor having two variable resistors controlling its emitter and base currents respectively. This invention relates to engine control systems and is particularly, but not exclusively, intended for use in fuel injection systems for engines.Type: GrantFiled: July 31, 1974Date of Patent: July 4, 1978Assignee: The Lucas Electrical Company LimitedInventors: Malcolm Williams, Adrian Walter Melady
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Patent number: 4098396Abstract: A joint for connecting together adjacent ends of individual elongate pans of an armoured scraper chain conveyor, has the adjacent conveyor pan ends provided on the outsides of their sidewalls with interengaging male and female formations, each formation being provided with one or more abutment surfaces forming part of a laterally open pocket connected to a laterally open channel, the pocket and channel of adjacent pan ends receiving a common, laterally inserted connector having a shank portion located within respective channels and at each end of the shank portion an enlarged head located within respective pockets so as to be engageable with an abutment surface of a respective pocket, and an aperture provided in the shank portion to receive a locating pin restrained from lateral displacement by engagement with a projection of one or other of the formations.Type: GrantFiled: December 13, 1976Date of Patent: July 4, 1978Assignee: Mining Supplies LimitedInventors: Brian Raymond Stoppani, Nigel John Box
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Patent number: 4097816Abstract: A system is disclosed for generating a plurality of preselected frequencies in a radio frequency device such as a receiver, transmitter or transceiver. It comprises means for generating a first reference signal having a predetermined frequency and means, including at least two voltage controlled oscillators (VCO), a mixer, a programmable frequency divider, and a switch, for generating a second reference signal, with the mixer being coupled to the first reference signal generating means and being selectively coupled on one of the VCO's by the switch to generate an output signal having a frequency corresponding to the difference between the frequency of said first reference signal and the frequency of the selected variable-frequency oscillator.Type: GrantFiled: July 20, 1977Date of Patent: June 27, 1978Assignee: General Research of Electronics, Inc.Inventors: Kazuyoshi Imazeki, Koichi Kazami
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Patent number: 4095190Abstract: A system is disclosed for generating a plurality of preselected frequencies in a radio frequency device such as a receiver, transmitter or transceiver. It comprises two crystal-controlled reference signal oscillators. First and second controllable variable-frequency oscillators (VCO's), first and second mixers, and a programmable frequency divider, together generate first and second output signals, with the first mixer being coupled to the first crystal oscillator and to the first VCO to generate the first output signal having a frequency corresponding to the difference between the frequency of the first reference signal and that of the first VCO. The second mixer is coupled to the second crystal oscillator and to the second VCO to generate the second output signal which has a frequency corresponding to the difference between the frequency of the second reference signal and the frequency of the second VCO.Type: GrantFiled: July 20, 1977Date of Patent: June 13, 1978Assignee: General Research of Electronics, Inc.Inventors: Kazuyoshi Imazeki, Koichi Kazami
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Patent number: 4094415Abstract: This invention relates generally to improvements in display rack devices and more particularly to display rack devices adapted for attachment to vertical panels and the like. The present invention as illustrated herein contemplates a plurality of elongate arm members, each having a free extremity for telescopically accommodating goods for display purposes. Mounting means at the opposite extremity of each arm member extend laterally thereof, and an elongate horizontally disposed support member extending substantially normal to said arm members is adapted to accommodate said mounting means in horizontally spaced relation. Means is provided for detachably securing said elongate support member to a vertical panel as for example to a panel commonly known as a pegboard.Type: GrantFiled: December 3, 1974Date of Patent: June 13, 1978Assignee: Chas. O. Larson Co.Inventor: Charles O. Larson
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Patent number: 4091929Abstract: A cylindrical container is provided at axially spaced locations with peripheral rip-strips for shortening the height of the container as the contents are used up. The original lid fits over the container following shortening thereof. Sealing means is applied over the juncture of each rip-strip with the remainder of the carton to prevent leakage.Type: GrantFiled: November 26, 1976Date of Patent: May 30, 1978Inventor: Bruce E. Krane