Patents Represented by Law Firm Trexler, Bushnell & Wolters, Ltd.
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Patent number: 4555624Abstract: A circuit is provided for a seed sensor which includes a light source and a light responsive element respectively positioned along a path of travel of seeds for producing a momentary change in signal level from the light responsive element in response to a momentary change of level of light incident thereupon from the light source due to the passage of one or more seeds therebetween. In accordance with the invention, the circuit comprises a pulse-producing circuit responsive to the change in signal level from the light responsive element for producing a discrete pulse signal in response to each change in the direction of the change in signal level. Predetermined ones of the discrete pulse signals are selected for counting.Type: GrantFiled: February 22, 1983Date of Patent: November 26, 1985Assignee: DICKEY-john CorporationInventor: David E. Steffen
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Patent number: 4555007Abstract: There is discussed a bearing assembly adapted for engagement by a plurality of clutch fingers rotating about a clutch finger axis of rotation. The bearing assembly comprises a rotational thrust face member with a cone raceway member affixed thereto, a cup raceway member rotatable relative to the cone raceway member, with a plurality of bearing elements disposed between the raceway members. A shell housing member for the bearing assembly is provided, which is located adjacent the cup raceway member, and is adapted to be engaged upon a cylindrical carrier sleeve. The carrier sleeve defines a second axis which is not necessarily coincident with the clutch finger axis of rotation. The respective bearing components are sized such that only the shell housing is engaged upon the carrier sleeve, with the remaining rotatable components, viz.Type: GrantFiled: December 15, 1983Date of Patent: November 26, 1985Assignee: Aetna Bearing CompanyInventors: Richard F. Harrington, Richard T. Dagiel, Villy Brown
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Patent number: 4552094Abstract: There is disclosed a door or wall construction which comprises vertically spaced upper and lower horizontal frame members and horizontally spaced vertical side frame members coupled with the upper and lower frame members to define a rectangular frame. A panel is joined with the lower frame member and side frame members to define a lower door portion. All of the frame members comprise elongate channels having substantially identical transverse, U-shaped cross sectional-dimensions and are oriented with open faces of the U-shaped cross sections facing inwardly, which open faces are dimensioned for embracing at least outer edge portions of the panel. A novel grill structure is also disclosed which forms an upper door portion. The grill structure comprises a plurality of vertically oriented, horizontally spaced elongate rods and a pair of elongate, U-shaped channels dimensioned for embracing and overlying the respective inwardly facing surfaces of the upper frame member and the second intermediate frame member.Type: GrantFiled: February 24, 1983Date of Patent: November 12, 1985Assignee: Lawrence Brothers, Inc.Inventor: Larry Johnson
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Patent number: 4553006Abstract: A key operated security switch has a housing containing a fixed contact. The housing has a slider provided with contact means movable therewith for slidable, non-rotary movement in the housing. A plurality of locking pins are slidably mounted in recesses formed in the housing and are spring-urged partly into the housing and partly into said slider so as to lock the slider relative to the housing. A plurality of plungers engage at one end with the adjacent ends of said locking pins and at the other end are engageable by the stepped edge of a key inserted into the slot of a barrel rotatably mounted in the housing. The stepped edge of the key projects through the slot of the barrel but does not engage the plungers during insertion or withdrawal.Type: GrantFiled: March 21, 1984Date of Patent: November 12, 1985Assignee: Lucas IndustriesInventor: Philip V. Little
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Patent number: 4550817Abstract: A mechanical, non-fluid-power clutch is disclosed. Inside a clutch housing, a cup element is fixed to a first shaft. First splined discs radiate inwardly from the cup. A second shaft, coaxial with the first shaft, has a second set of splined discs which radiate outwardly in an interleaved arrangement with the first discs, so as to form a disc stack. A collar cam is also carried by the cup element. This collar cam has a fixed element, and a movable element which can squeeze the disc stack and consequently couple the shafts. Interconnector balls move radially outwardly between the collar cam elements to effect the collar cam element movement and shaft coupling. The radially outward movement of the balls is caused by a sleeve cam telescoped upon the second shaft. The sleeve cam can be moved axially by a yoke arrangement, which is controlled by a lever located outside the housing.Type: GrantFiled: February 29, 1984Date of Patent: November 5, 1985Assignee: Lambert Brake CorporationInventor: John W. Euler
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Patent number: 4551801Abstract: A monitoring module is provided for monitoring a plurality of functions and conditions of a vehicle including a plurality of sensors for producing sensor signals in response to a plurality of vehicle functions and conditions. The monitoring module comprises a plurality of inputs each for receiving one of the sensor signals, the inputs being fewer in number than the vehicle functions and conditions to be monitored. The monitoring module also includes a processor responsive to the sensor signals from the inputs for producing display signals corresponding to the values of the respective functions and conditions. The monitoring module further includes a memory for storing data and instructions for enabling the processor to respond to any of the sensors for monitoring any of the vehicle functions and conditions. The monitoring module further includes a sensor identifying arrangement for producing signals to identify the particular sensors coupled to the inputs.Type: GrantFiled: February 7, 1983Date of Patent: November 5, 1985Assignee: Dickey-john CorporationInventor: David G. Sokol
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Patent number: 4549697Abstract: A guard apparatus is provided for a rotatable, side discharge material distribution spinner having a given circumference and height and a predetermined lateral discharge area. The guard apparatus comprises an upper guard ring and a lower guard ring each defining an outer periphery at least as great as the circumference of the spinner. Coupling brackets are provided for coupling the upper and lower guard rings together in assembled condition in substantially parallel planes and spaced apart by an amount at least as great as the given height of the spinner. A mounting arrangement is provided for mounting the assembled guard rings respectively above and below the spinner so as to respectively overlie the outer circumference thereof while leaving the lateral discharge area thereof unobstructed.Type: GrantFiled: June 9, 1983Date of Patent: October 29, 1985Assignee: Swenson Spreader CompanyInventor: Kenneth P. Manon
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Patent number: 4548293Abstract: A bin ladder construction includes a vertical ladder up the side of a grain storage bin and an inclined ladder from the upper end of the vertical ladder to the peak of the roof of the grain storage bin. Corner pieces of particular shape and configuration interconnect the inclined and vertical ladders. The ladders have hollow rungs open at both ends, and channel members extend through and beyond the ends of a pair of hollow rungs in the vertical ladder and in the inclined ladder. Triangular brackets mount the opposite ends of hand rails to the ends of said channels.Type: GrantFiled: July 13, 1984Date of Patent: October 22, 1985Assignee: Brock Manufacturing, Inc.Inventor: Alvin D. Haab
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Patent number: 4544191Abstract: A plastic one-piece latch for locking a lid comprises a base provided on the underside thereof with a fastener leg, an engaging piece extending from one end of the base and bent abruptly in an oblique upward direction in a manner folded over itself and adapted to make fast engagement with a hook on the lid, and a compression piece extending from the base to a great enough length to collide into the inner surface of the lid at the time that the lid is on the verge of complete closure.Type: GrantFiled: October 11, 1984Date of Patent: October 1, 1985Assignee: Nifco, Inc.Inventor: Daiji Nakama
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Patent number: 4543782Abstract: A gas turbine engine fuel control system includes a transducer N which provides a signal representing engine speed. An N schedule signal generator receives the N signal and generates an acceleration limit signal which is used during acceleration as a limiting signal. To overcome problems of droop inherent, in such systems a correction signal generated by a function generator is added to the output of the N schedule signal generator. The correction signal is at least in part dependent on the rate of change of the limit signal.Type: GrantFiled: May 16, 1983Date of Patent: October 1, 1985Assignee: Lucas IndustriesInventor: Ian P. Fitzmaurice
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Patent number: 4538620Abstract: An inhalation valve for respiratory diagnosis and/or therapy is provided. A single rubber or the like diaphragm is mounted in a free floating fashion so that one portion would open upon inhalation, while the other portion opens upon exhalation. The valve body is of molded plastic construction and contains a tube of restricted area through which air flows upon inhalation with reduction in lateral pressure being measured to indicate the volume of inhaled air.Type: GrantFiled: May 13, 1983Date of Patent: September 3, 1985Assignee: Trutek Research Inc.Inventors: Christopher Nowacki, Alfred G. Brisson
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Patent number: 4538763Abstract: A liquid spray head 1 comprises a body portion 2, 2A, 2C, releasably located within a socket 5 of a housing 6, 6A, 6B, having a supply port 19 for pressurized liquid, the body portion 2, 2A, 2C, having an inner end 3 and an outer, liquid discharge end 4, and also having a liquid receiving chamber 17 intermediate these ends 3 and 4 and connected to the supply port 19 to receive liquid therefrom, whereby liquid pressure is operable on portions 46 of the chamber 17 and body portion 2, 2A, 2C, to urge the spray head 1 into the socket 5 so as to counter the effect of liquid pressure on other portions 38 of the spray head 1 tending to urge the body portion 2, 2A, 2C, from the socket 5; a liquid delivery path 22 extending from the chamber 17 to the liquid discharge end of the body portion 2; at least one liquid sealing means 8, 8C, provided between the inner end 3, 3C, of the body portion 2, 2A, 2C, and the socket 5; and abutment means 16, 42, 16C, on the body portion 2, 2A, 2C, engageable by an extraction tool.Type: GrantFiled: March 14, 1983Date of Patent: September 3, 1985Assignee: Hayden Nilos Conflow LimitedInventors: Dennis A. Perry, David H. Wilmot
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Patent number: 4538323Abstract: There is disclosed a truck assembly which is movable along a track and adapted to support a door panel, or the like, for corresponding movement. The truck assembly comprises wheel members mounted to a pair of axles. The axle are in turn supported by a carriage assembly which includes bearing arrangements for each wheel. The carriage assembly further includes holding means for maintaining the bearing assemblies in supportive position. A hanger member for the door panel is also provided, and is mounted to the carriage.Type: GrantFiled: February 24, 1983Date of Patent: September 3, 1985Assignee: Lawrence Brothers, Inc.Inventor: Larry Johnson
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Patent number: 4537010Abstract: There is disclosed a method and apparatus for the automatic handling and bagging of articles, such as can ends, and thereafter depositing filled bags of said article on a pallet member in such a manner as to provide a plurality of layers of filled, palletized bags. The apparatus includes a receiving station which can handle a continuous flow of articles and provide individual stacks of articles disposed in facewise relationship for delivery to a bagging station. At the bagging station the stack of articles is automatically disposed with a bag to provide a filled bag. A collating station is provided which receives the filled bags from the bagging station and temporarily stores a layer of a number of filled bags in generally side-by-side horizontal disposition prior to palletizing. The collating station includes a discharger for depositing a layer of filled bags onto a palletizing station.Type: GrantFiled: January 21, 1983Date of Patent: August 27, 1985Assignee: Fleetwood Systems, Inc.Inventors: Wallace W. Mojden, Robert E. Darr
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Patent number: 4537351Abstract: A simplified vaporizing dispenser features snap attachment of a base cap to an inverted container, positive "ON" and "OFF" adjustments for the respective activation and deactivation of the dispenser, the use of an absorbent sheet shaped in the form of the frustum of a cone with the narrow end inserted in an annular well for isolating the wetting area of the absorbent material from the vaporizing area and thereby enabling waving of the dispenser about in the air without spilling liquid, and an outer decorative sleeve that enables adjustment in the emitted vapor level.Type: GrantFiled: July 14, 1983Date of Patent: August 27, 1985Assignee: The Dow Chemical CompanyInventor: Daniel C. Wilson
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Patent number: 4537550Abstract: Apparatus for supplying a stack of can ends or the like to a downstream processing unit is provided. The apparatus comprises a transport system having a trough for accumulating, in stacked array, can ends delivered from an upstream source. Transport clamp means engage at least some of the stacked, accumulated can ends, and a transport drive moves the clamp means and can ends along the trough to a transfer station. The transfer system includes a pocket for supporting a stack of can ends transported thereinto by the transport means. A transfer clamp means engages at least some of the upstream can ends inserted into the pocket. A shelf is inserted into the pocket bottom for supporting the stack of can ends in the pocket when the transfer clamp means are withdrawn. The stack of can ends supported on the shelf can then be transferred to a carousel-type rotory infeed unit, or to a bagging machine, or to some other sort of downstream processing unit.Type: GrantFiled: September 29, 1983Date of Patent: August 27, 1985Assignee: Fleetwood Systems, Inc.Inventors: Wallace W. Mojden, Robert E. Darr
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Patent number: 4535644Abstract: The invention simplifies the manufacture of levers employed in particular for actuating cycle derailleurs and facilitates the mounting of the cable on these levers. For this purpose, the lever 20 has at least one cavity 31 in which the cable can be engaged resiliently in opposition to the action of a retaining device.Type: GrantFiled: December 29, 1983Date of Patent: August 20, 1985Assignee: Huret et ses FilsInventor: Maurice E. L. Coue
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Patent number: 4534238Abstract: The unit comprises a collar defining a bearing surface (13) for the lever, a fixing device such as a rivet (24) which also constitutes the journal on which the lever (25) is mounted, and an elastically yieldable washer (23). The collar defines also a cavity (16) for a member constituting an abutment for a cable sheath and may be provided with a rapid fixing device.Type: GrantFiled: December 23, 1982Date of Patent: August 13, 1985Assignee: Huret et ses FilsInventor: Maurice E. L. Coue
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Patent number: 4534547Abstract: A rapid acting C-clamp is provided. A housing in the base of the C-clamp has a generally semi-cylindrical wall and an internal arcuate rib therein. The C-clamp has a threaded spindle extending through the housing, and a nut member in the housing is provided with a threadless bore through which the spindle extends for rapid advancement. The nut member also has a partially offset and partially threaded bore which is selectively engageable with the threaded spindle for threaded advancement of the spindle. The external surface of the nut is comprised of two semi-cylindrical portions overlapping so as to provide definite lines of demarcation between the portions. A friction member in the nut is resiliently pressed against the threads of the spindle to cause the nut to turn with the spindle in either direction.Type: GrantFiled: April 16, 1984Date of Patent: August 13, 1985Assignee: Wilton CorporationInventor: Edward A. Cox
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Patent number: D280237Type: GrantFiled: January 31, 1983Date of Patent: August 20, 1985Inventor: Michael B. Gaumer