Unitary Load Transferrer And Weigher Patents (Class 177/139)
  • Publication number: 20090095539
    Abstract: A cycle counter system for use with a loading machine having a loading bucket. The cycle counter system includes at least one weight sensor, an operator activated control and a processing circuit. The at least one weight sensor produces a weight signal relating to a measured weight of a weight lifted by the loading machine. The operator activated control in the loading machine selectively produces at least one control signal. The processing circuit receives the control signal and the weight signal. The measured weight is added to a selected of a plurality of weight values dependent on the at least one control signal.
    Type: Application
    Filed: October 15, 2007
    Publication date: April 16, 2009
    Inventors: Kevin L. Pfohl, Gary S. Honey, Erin E. Ralph, Douglas Meyer
  • Publication number: 20090056605
    Abstract: The present invention is an improved grain drill and a method retrofitting a previously manufactured grain drill to provide accurate weight determination of seed in a seed hopper of the grain drill. A grain drill in accordance with the invention includes a frame having a plurality of wheels for supporting the grain drill during rolling over a surface of ground to be planted with seed grain; a hopper for containing the seed grain to be planted in the ground; a support which is joined to opposed sides of the frame and to spaced apart locations of the hopper to transfer weight of the hopper to the frame, the support including at least one weight sensing device which senses a weight of seed grain in the hopper transferred through the support to the frame and provides an output of the sensed weight of the seed grain in the hopper; and a display, coupled to the output, for displaying the weight of the seed grain contained in the hopper.
    Type: Application
    Filed: November 7, 2008
    Publication date: March 5, 2009
    Inventor: David E. WILSON
  • Publication number: 20080314649
    Abstract: A method of weight determination of a load carried by a lifter (1) of a lifting device (2) is based on at least one upward and one downward displacement of the lifter (1) by means of a hydraulic actuator (7). A pressure signal is provided by means of a pressure transducer (24), and a position signal is provided by means of a meter (23). The weight of the load (27) is determined on the basis of the pressure signal (24) and the position signal (23). The position signal is registered as a function of time, an acceleration dependent parameter is determined on the basis of the variation of the position signal, and the weight determination is performed in dependence of said acceleration dependent parameter. Furthermore, a weighing device is disclosed.
    Type: Application
    Filed: June 3, 2005
    Publication date: December 25, 2008
    Inventor: Torben Winther Hansen
  • Patent number: 7448335
    Abstract: The present invention is an improved grain drill and a method retrofitting a previously manufactured grain drill to provide accurate weight determination of seed in a seed hopper of the grain drill. A grain drill in accordance with the invention includes a frame having a plurality of wheels for supporting the grain drill during rolling over a surface of ground to be planted with seed grain; a hopper for containing the seed grain to be planted in the ground; a support which is joined to opposed sides of the frame and to spaced apart locations of the hopper to transfer weight of the hopper to the frame, the support including at least one weight sensing device which senses a weight of seed grain in the hopper transferred through the support to the frame and provides an output of the sensed weight of the seed grain in the hopper; and a display, coupled to the output, for displaying the weight of the seed grain contained in the hopper.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: November 11, 2008
    Inventor: David E. Wilson
  • Patent number: 7357087
    Abstract: The present invention is an improved grain drill and a method retrofitting a previously manufactured grain drill to provide accurate weight determination of seed in a seed hopper of the grain drill. A grain drill in accordance with the invention includes a frame having a plurality of wheels for supporting the grain drill during rolling over a surface of ground to be planted with seed grain; a hopper for containing the seed grain to be planted in the ground; a support which is joined to opposed sides of the frame and to spaced apart locations of the hopper to transfer weight of the hopper to the frame, the support including at least one weight sensing device which senses a weight of seed grain in the hopper transferred through the support to the frame and provides an output of the sensed weight of the seed grain in the hopper; and a display, coupled to the output, for displaying the weight of the seed grain contained in the hopper.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: April 15, 2008
    Inventor: David E. Wilson
  • Patent number: 7330128
    Abstract: A system for detecting radiation that is embodied within a trash collection truck. The trash collection truck has a storage bin for holding compressed trash and a collection bin for temporarily holding newly collected trash. A compaction mechanism is used to move newly collected trash out of said collection bin and into said storage bin. At least one sensor is placed proximate the collection bin for detecting radiation. If radiological waste is placed into the collection bin of the trash collection truck, the sensor detects the presence of the radiological material and activates an alarm indicator. The alarm indicator warns the operators of the trash collection truck that radiological waste is present.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: February 12, 2008
    Inventors: Thomas Lombardo, Armando Arzuaga, Jr.
  • Patent number: 7273017
    Abstract: The present invention is an improved grain drill and a method retrofitting a previously manufactured grain drill to provide accurate weight determination of seed in a seed hopper of the grain drill. A grain drill in accordance with the invention includes a frame having a plurality of wheels for supporting the grain drill during rolling over a surface of ground to be planted with seed grain; a hopper for containing the seed grain to be planted in the ground; a support which is joined to opposed sides of the frame and to spaced apart locations of the hopper to transfer weight of the hopper to the frame, the support including at least one weight sensing device which senses a weight of seed grain in the hopper transferred through the support to the frame and provides an output of the sensed weight of the seed grain in the hopper; and a display, coupled to the output, for displaying the weight of the seed grain contained in the hopper.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: September 25, 2007
    Assignee: Ken Von Muenster
    Inventor: David E. Wilson
  • Patent number: 7059258
    Abstract: The present invention is an improved grain drill and a method retrofitting a previously manufactured grain drill to provide accurate weight determination of seed in a seed hopper of the grain drill. A grain drill in accordance with the invention includes a frame having a plurality of wheels for supporting the grain drill during rolling over a surface of ground to be planted with seed grain; a hopper for containing the seed grain to be planted in the ground; a support which is joined to opposed sides of the frame and to spaced apart locations of the hopper to transfer weight of the hopper to the frame, the support including at least one weight sensing device which senses a weight of seed grain in the hopper transferred through the support to the frame and provides an output of the sensed weight of the seed grain in the hopper; and a display, coupled to the output, for displaying the weight of the seed grain contained in the hopper.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: June 13, 2006
    Assignee: Ken Von Muenster
    Inventor: David E. Wilson
  • Patent number: 6855894
    Abstract: A mobile lifting device comprises a mobile frame (1, 12, 13) with a set of lift forks (3) for receiving a pallet thereon. The pallet truck is provided with a weighing device which comprises at least one pressure or strain-sensitive sensor (20) in addition to a display panel (21) for indicating thereon a value measured by the sensor. The sensor is connected firmly to a pan (12) of the frame and able to determine a mechanical deformation in that part of the frame. The weighing device comprises this sensor.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: February 15, 2005
    Assignee: Ravas Europe B.V.
    Inventor: Henri Peter Maria Van Seumeren
  • Publication number: 20040178005
    Abstract: Vehicle on-board measurement of axle load and gross combined vehicle weight is improved for an air bladder suspended vehicle by allowing for suspension hysteresis. Suspension hysteresis results in at least two distinct air pressures being possible in an air bladder for a single load. The system also reduces the disruptive effect of vehicle acceleration and deceleration on load determination. Vehicle drive train management is enhanced using the load information to effect transmission gear selection.
    Type: Application
    Filed: March 15, 2003
    Publication date: September 16, 2004
    Inventors: Kevin R. Carlstrom, Gerald L. Larson, Matthew J. Gumbel
  • Patent number: 6732667
    Abstract: The present invention is a grain drill and a method retrofitting a previously manufactured grain drill to provide accurate weight determination of seed in a seed hopper of the grain drill. A grain drill in accordance with the invention includes a frame having a plurality of wheels for supporting the grain drill during rolling over a surface of ground to be planted with seed grain; a hopper for containing the seed grain to be planted in the ground; a support which is joined to opposed sides of the frame and to spaced apart locations of the hopper to transfer weight of the hopper to the frame, the support including at least one weight sensing device which senses a weight of seed grain in the hopper transferred through the support to the frame and provides an output of the sensed weight of the seed grain in the hopper; and a display, coupled to the output, for displaying the weight of the seed grain contained in the hopper.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: May 11, 2004
    Assignee: Ken Von Muenster
    Inventor: David E. Wilson
  • Patent number: 6730861
    Abstract: Weigh sensed lift truck forks in which each standard fork is modified to accept an assembly including load sensing cells, spacers and a fork cover. Each cover provides protection for load cells affixed through spacers between the fork and fork cover, standard fork tip functionality and a load bearing surface and structure that interfaces through the spacers with the load cells and fork subassembly to provide accurate load weight data. The design of the components and method of their assembly result in improved manufacturing efficiency and cost effectiveness, easier installation, improved load weighing functionality, improved structural robustness, easier servicing and improved safety.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: May 4, 2004
    Assignee: Weigh Point Incorporated
    Inventor: Gerald S. Simons
  • Publication number: 20040045745
    Abstract: The invention provides a lifting device for an industrial truck with a load holding device (9) that can move in a vertical direction along a lifting mast. A lifting chain (13) supports the load holding device (9) and a measurement device determines the weight of a load on the load holding device (9). The measurement device includes a force transducer (18) located in the vicinity of the lifting chain (13) of the lifting device. The force transducer (18) is suitable for the measurement of compression forces and is located at a fastening point of the lifting chain (13) to the lifting mast.
    Type: Application
    Filed: June 11, 2003
    Publication date: March 11, 2004
    Inventors: Hans-Jorg Schiebel, Michael Meinhardt, Ralf Mebert
  • Patent number: 6703569
    Abstract: The present invention is directed to a roll-off truck/trailer and a method for weighing the box that is positioned horizontally on the truck/trailer. More specifically, the present invention is directed to a weighing system mounted on a roll-off truck/trailer that has four lifts, two on each side of the truck/trailer, and load cells mounted on the lifts. The method of the present invention involves positioning a box in a horizontal position on the roll-off truck/trailer and lifting the box with load cells that are fixed on the top of lifts mounted on each side to the chasis of the truck/trailer.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: March 9, 2004
    Assignee: S'Morf, Inc.
    Inventors: Ronald Brien Moore, Lloyd Glynn Paige
  • Publication number: 20040007395
    Abstract: A method and method for fast weighing of items such as mailpieces with variable accuracy. The method includes a scale method having a platform connected to a load cell that provides an output signal to an analog-to-digital converter. The resulting digital output signal is processed by a low pass filter and analyzed by a microprocessor to determine weights of items on the platform. The microprocessor also determines postage amounts of items on the platform. The microprocessor also determines postage amounts as functions of the weights and outputs these postage amounts to a postage meter. The microprocessor determines the weights as the average of a sequence of digital output signal values if the average id not closer than D to any weight break, where D is the difference between a maximum output value and a minimum output value.
    Type: Application
    Filed: July 9, 2002
    Publication date: January 15, 2004
    Applicant: Pitney Bowes Inc.
    Inventors: David J. Eaton, John E. Massucci, John P. Miller
  • Patent number: 6646210
    Abstract: The invention relates to a device for detecting the weight of the useful load of a commercial vehicle, comprising sensors which detect the amount of vehicle load produced by said useful load, in addition to a data memory that records information detected by said sensors. The sensors are designed to detect vertical acceleration. The invention also relates to a method for determining the useful load of a commercial vehicle, whereby the signals from the sensors that register the weight of the load of the commercial vehicle or the weight of a component receiving said useful load are supplied to the data memory either immediately or in a prepared form in order to detect vertical acceleration.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: November 11, 2003
    Assignee: Pfreundt GmbH & Co. KG
    Inventor: Ludger Wissing
  • Patent number: 6624363
    Abstract: An improved gondola assembly for receiving harvested crops in the field from a crop harvester has a lightweight molded drop in tank held in place by a tank framework on the gondola assembly. The drop in tank lowers the gondola center of gravity as it replaces stainless steel or painted mild steel tanks and requires no periodic maintenance. A built in scale for continuous in the field monitoring of the weight of received harvested crop is constructed to be viewable by a tow tractor operator whether towed from one end of the gondola or the other. The towable gondola obtains power for operation of a pair of tank framework lift cylinders from the tow tractor so that the tank is movable between an elevated dump position and a lowered crop collection position. The gondola has a reversible towing tongue for towing in either direction so it may be configured to be towed on either side of a crop harvester.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: September 23, 2003
    Inventors: Franklin P. Orlando, Phillip Ray Scott
  • Patent number: 6600111
    Abstract: A portable weigh scale system that can be easily fitted onto the standard forks of a lift truck or the like for lifting, weighing and transporting a load without modifications to the vehicle or lift forks. The weigh scale assembly is principally constructed from fabricated standard metal tubing sections, a fabricated metal attachment and load sensing cells that, as an assembly, can be configured in a number of ways to better suit different load transport and weighing applications. The load sensing cells that fit between and are protected by a fabricated metal and tubing section are affixed to these with fasteners fitted through spacers. The top length of the assembly provides a load bearing surface that interfaces through the spacers, fabricated metal attachment, tubing sections and load sensing cells to provide accurate load weight data. The weigh scale assembly is comprised of two identical halves to form a pair that can be affixed together along their length if preferred.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: July 29, 2003
    Inventor: Gerald S. Simons
  • Patent number: 6598010
    Abstract: The present invention is a method for achieving accurate measurement of true weight of a load by use of a weight measuring device which has the ability to be tilted by the operator about an axis, such as, but not limited to, a scale which is built into a forklift vehicle. The accurate measurement of true weight is achieved by tilting the load through a range of angles of inclination that includes horizontal, about an axis running transverse to the forklift truck. Load force data from the weight measuring device is sent to a processor as the load is tilted. The processor filters out “noise” and uses the highest load force reading to calculate the true weight of the load. The present invention is further able to use the information obtained from the weight measuring device to determine the angle of inclination of the load at any given time.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: July 22, 2003
    Inventor: Uri Zefira
  • Patent number: 6422800
    Abstract: The system is for use in a front loader assembly for refuse vehicles, which include two spaced fork members which are secured to a cross-member, which in turn are supported by lift arms which move the load supported on the forks into the refuse truck. The system includes flexure beams which are formed by cutout portions in a sensing portion of each fork. The flexure beams are located symmetrically about a centerline of a sensing section of each fork, and alternate between two different lengths, with the flexure beams of each length being in alignment. Three sets of long cutout portions and 3 sets of short cutout portions are included, in addition to a central pair of cutout portions on which the strain gauges are mounted. The sensing section of the fork is configured to provide the necessary stiffness with the plurality of flexure beams therein.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: July 23, 2002
    Inventors: Keith W. Reichow, Bill Zimmerman
  • Patent number: 6302461
    Abstract: The invention relates to a transport and/or collection device of molded plastics material including an electronic identity device such as a transponder, the identity device being integrated in a wall of the transport and/or collection device while the wall is being molded. The identity device is housed at least in part in a protective shell with the wall (2) being molded in contact therewith.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: October 16, 2001
    Assignee: Compagnie Plastic Omnium
    Inventors: Jean-Jacques Debras, Bernard Plissonnier
  • Patent number: 6236000
    Abstract: This invention is drawn to an apparatus for lifting and weighing a container, including a pair of fork tines engagable with said container and mounted on a supporting structure, each fork tine having a vertically disposed web provided with transducers responsive to strain therein to determinate the weight imposed on the tines by the container, characterized in that each tine is attached to the supporting structure by the bolts passing through said web and through a vertical flange located on only one side of said web and attached to the supporting structure.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: May 22, 2001
    Inventor: Arthur Kellenbach
  • Patent number: 6232566
    Abstract: A device for lifting a load includes a carriage supported by one end of a chain. The chain passes over a sprocket wheel (mast roller) atop a hydraulically operated telescoping element and is anchored at a second end. In a first embodiment of the invention, an equalizing scheme for reducing errors in measuring the weight of the load includes providing a chain and sprocket-wheel having dimensions such that the rollers comprising each link of the chain span a predetermined portion of the circumference of the sprocket-wheel. In a second embodiment of the invention, the equalizing scheme includes a force sensor coupled to sense a force in connection with movement of the load thus generating a series of force measurements, the measurements being proportional to the weight of the load. The measurements are taken over a predetermined rotational movement of the sprocket-wheel and averaged to produce a value that is an accurate reflection of the weight of the load.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: May 15, 2001
    Assignee: Gagetek Technologies, Holdings Company
    Inventor: Robert W. Bruns
  • Patent number: 6225574
    Abstract: A hoisting machine including a device supported from a structure, the device holding the material to be lifted, the structure being movable to locate the device in respective loaded and unloading positions, and apparatus for measuring the quantity of material delivered by the device, the apparatus comprising means to determine the position of the device with respect to a selected location in the structure at a plurality of intervals during the movement of the device, means to provide a processable position signal indicative of the determined position of the device, means to determine the load at a selected location within the structure where the load is related to the weight of the device and device contents at the intervals during the movement of the device, means to produce a processable load signal indicative of the determined load at the location, and processing means to receive the position and load signals for a plurality of interval determinations and calculate therefrom a number of weight determinatio
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: May 1, 2001
    Assignee: Harnischfeger Technology, Inc.
    Inventors: Shu-Chieh Chang, Michael J. Rikkola, Paul G. Phillips, John S. Burant, Demeng Chen
  • Patent number: 6013880
    Abstract: A material supporting apparatus is disclosed for supporting and permitting delivery of the materials. The apparatus includes a chassis having a first and a second end. A container is mounted upon the chassis and a stabilizing device is interconnected between the container and the chassis. The stabilizing device is disposed between the container and the chassis for stabilizing the container relative to the chassis. A restraining mechanism extends between the chassis and the container for permitting limited vertical movement of the container relative to the chassis. Also, a weight sensing arrangement is disposed between the container and the chassis for sensing the weight of the container and the materials added thereto and for determining therefrom the weight of the materials within the container. Additionally, a coupling device is disposed between the chassis and the container and positioned remote from the stabilizing device for assisting the stabilizing of the container relative to the chassis.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: January 11, 2000
    Assignee: Knight Manufacturing Corp.
    Inventors: Claude L. McFarlane, Daniel R. Brauer
  • Patent number: 6002090
    Abstract: A force sensitive scale and dual sensor load cells for use therewith isolate, measure, and reject out residual rejected effects from the output of the scale. By isolating residual rejected effects, the overall accuracy of the scale may be improved, and the scale may be made substantially insensitive to the position of an object on the scale. In addition, where a scale includes multiple load cells coupled in parallel to a load receiving member and spaced apart in the direction of the force vector, the outputs of the load cells may be effectively scaled to cancel out frictional effects inherent in the scale.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: December 14, 1999
    Assignee: Weigh-Tronix, Inc.
    Inventors: Thomas H. Johnson, Roger A. Younger, Gene L. Justice, Kevin M. Fruechte
  • Patent number: 5922998
    Abstract: A scale on a fork-lift comprising of at least one cantilevered beam tine (18) supported by a rigid member (20) near one end of the cantilevered beam. A weighing platform (16) is positioned above the beam (18) for supporting the load. The platform (16) is supported by at least two load cells (34a,34b) located between the beam (18) and the platform (16). At least one of the supporting load cells (34a) is located on the beam either at the point of attachment of the rigid member (20), or between the point of attachment and the end (24) of the cantilevered beam opposite the free end (22) of the beam, in order to reduce the bending of the cnatileverrd beam tine and thereby increase the maximum load carrying capacity of the fork-lift.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: July 13, 1999
    Inventor: Uri Zefira
  • Patent number: 5861580
    Abstract: The present invention is directed to a novel load cell for weighing heavy loads and a weighing system using the novel load cells on a vehicle, such as a refuse truck. More specifically, the present invention is directed to a weighing system on a front-end loader refuse truck for weighing scrap metals or trash in boxes or containers lifted by arms or forks on which a plurality of the novel load cells are mounted. In addition, a protection mechanism may be activated to protect the load cells from a falling container when the container is lifted over the truck for dumping the contents into the truck or when the arms or forks are placed into the sleeves of the container to be weighed.
    Type: Grant
    Filed: June 21, 1995
    Date of Patent: January 19, 1999
    Assignee: S' More, Inc.
    Inventors: Ronald Brien Moore, Lloyd Glynn Paige
  • Patent number: 5837945
    Abstract: A weighing system for determining the weight of material deposited from a container into a collection truck for collecting refuse or recyclable material includes at least one load cell installed into a lifting fork of the truck lifting arm for producing output signals based on the load on the arm as the full container is lifted and the emptied container is lowered. An acceleration or angle sensor is also provided on the lifting arm for sensing the acceleration or angle of the arm and producing a corresponding output signal. A processing unit receives the load cell and sensor outputs during raising and lowering of the lifting arm, and calculates the dynamic weight of the refuse lifted and deposited from the container, using the sensor output to compensate for the angle or G forces on the arm.
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: November 17, 1998
    Assignee: Hardy Instruments, Inc.
    Inventors: David M. Cornwell, David A. Ness
  • Patent number: 5837946
    Abstract: A force sensitive scale and dual sensor load cells for use therewith isolate, measure, and reject out residual rejected effects from the output of the scale. By isolating residual rejected effects, the overall accuracy of the scale may be improved, and the scale may be made substantially insensitive to the position of an object on the scale. In addition, where a scale includes multiple load cells coupled in parallel to a load receiving member and spaced apart in the direction of the force vector, the outputs of the load cells may be effectively scaled to cancel out frictional effects inherent in the scale.
    Type: Grant
    Filed: June 16, 1995
    Date of Patent: November 17, 1998
    Assignee: Weigh-Tronix, Inc.
    Inventors: Thomas H. Johnson, Roger A. Younger, Gene L. Justice, Kevin M. Fruechte
  • Patent number: 5773768
    Abstract: A transport, such as a truck, has an on-board weighing device, which has at least two weighing frames for supporting a load, such as a container and its content, to be weighed. Each weighing frame is suspend relative to a transport chassis either directly or indirectly with a supporting frame, using at least one connecting element, which includes a load cell for measuring the weight of the load. The weighing frames, supporting frames, and connecting elements form a weighing unit that can be connected to the transport chassis. The weighing unit can include a separate lifting device for lifting the load away from the chassis, but is not always needed. A locking load stabilizer can be included to stabilize the load during transporting, loading, or unloading. The stabilizer can eliminate the need for a separate lifting device.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: June 30, 1998
    Assignee: NV Nuyts Orb
    Inventor: Henry Nuyts
  • Patent number: 5703333
    Abstract: An on-board apparatus, system, and method for weighing loads lifted by a lifting apparatus mounted to a vehicle, based upon torque generated on a torque tube. More particularly, the invention is directed toward the mounting of a loadcell in relation to a torque tube of a lifting apparatus mounted on a vehicle, so that the weight of a load lifted by the apparatus can be determined by generating electric signals corresponding and calibrated to the amount of load lifted by the apparatus. In further detail, the apparatus, method, and system of the present invention are provided for on-board weighing of loads collected by refuse vehicles or bulk material haulers. The invention envisions operating to weigh loads statically or dynamically while the load is in motion.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: December 30, 1997
    Assignee: Wray-Tech Instruments, Inc.
    Inventor: Bruce Wegner
  • Patent number: 5666295
    Abstract: A hydraulic lifting device, such as a forklift, is provided and is capable of dynamically measuring the weight of a load being lifted. A plurality of pressure measurements are taken during the lift for a period of time, which are stored in memory. A computer program is operated on by a microprocessor to process the pressure measurements to filter unwanted signals associated with vibration and other mechanical disturbances. The pressure samples processed by the computer program correspond to a portion of the lift during which acceleration of the forks has ceased, allowing a closer correspondence between the weight lifted and the pressure of the hydraulic fluid sensed.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: September 9, 1997
    Assignee: Sentek Products
    Inventor: Robert W. Bruns
  • Patent number: 5644489
    Abstract: A haulage vehicle is described that includes a mechanism for loading material from a container into the haulage vehicle while the vehicle remains stationary. A sensor mounted to the vehicle retrieves from the container a machine-readable code when the material from the container is collected by the vehicle. An electronic processor collects the code retrieved by the sensor, time stamps the code and compiles a historical record identifying the container and a time when the material from it was collected. Preferably, the vehicle includes a weighing device for determining a weight of the material collected from the container. The weight of the material is included in the historical record.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 1, 1997
    Inventor: LeRoy G. Hagenbuch
  • Patent number: 5565846
    Abstract: A reader for radio frequency identification tags having at least one magnetic field transmitting and receiving coil which is oriented in a given plane and which is responsive to a received magnetic exciter field of a first frequency to produce and radiate an identifying magnetic field comprised of a carrier at a second different frequency modulated by an identifying code.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: October 15, 1996
    Assignee: Indala Corporation
    Inventors: Theodore D. Geiszler, Noel H. Eberhardt, Russel E. Walker, Herbert P. Radding
  • Patent number: 5509293
    Abstract: A method for dynamically measuring and indicating payload weight for a machine having at least one lift cylinder for elevating a payload carrier is provided. The method includes the steps of lifting a load of known mass during calibrating and sensing a calibration lift cylinder velocity during calibration. To determine payload, lift cylinder hydraulic pressure and lift cylinder extension are sensed during a lifting operation of the machine. A first estimate of the payload is determined as a function of the lift cylinder hydraulic pressure and extension. The method further includes the steps of determining an operating lift cylinder velocity during the lifting operation and determining a velocity correction factor as a function of the calibration lift cylinder velocity and the operating lift cylinder velocity. A second estimate of the payload is calculated as a function of the first estimate and the velocity correction factor.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: April 23, 1996
    Assignee: Caterpillar Inc.
    Inventor: Arundhati Karumanchi
  • Patent number: 5401915
    Abstract: An identification unit for garbage cans is proposed, which can be emptied by means of emptying devices or dumping into collection vehicles as well as being able to be weighed for determination of the weight of the garbage contained therein on the emptying device before and after the emptying process, wherein the garbage can carries a coding sensor, which can be made to communicate with an identification system on board of the collection vehicle assigned to the emptying device.Since a lasting operationally secure layout of the identification unit is important, the coding sensor is housed in the receptacle in the stiffening collar or dumping engagement grip 6 at the garbage can and/or is enclosed on all sides.
    Type: Grant
    Filed: December 13, 1993
    Date of Patent: March 28, 1995
    Assignee: Fritz Schafer Gesellschaft mit beschrankter Haftung
    Inventor: Gerhard Schafer
  • Patent number: 5344272
    Abstract: A transporter, such as a garbage truck, a forklift truck, an exchangeable trough for a truck or the like, is provided with a loading and tilting mechanism which is slidingly, rollingly or pivotably connected with the transporter for lifting a container or the like and emptying it in the transporter or another transporter. The loading and tilting mechanism includes engaging members which are mounted on an auxiliary frame which, by means of at least two coupling members, is connected with a main frame. The main frame is supported by the transporter or is part of it. In the coupling members, a device is present for measuring the load exerted on the coupling members so that a container supported by the auxiliary frame can be weighed.
    Type: Grant
    Filed: October 29, 1991
    Date of Patent: September 6, 1994
    Assignee: NV Nuyts ORB
    Inventor: Henry Nuyts
  • Patent number: 5326939
    Abstract: The proposal is for an identification unit for rubbish containers (1) which can be emptied by emptying devices or by tipping into dustcarts and can be weighted to determine the weight of the rubbish in them before and after emptying on the emptying device or tipping. The rubbish container (1) has a recognition sensor (7) which can be brought into correspondence with an identification system on board the individual dustcart and associated with the emptying device or tipping out procedure. To give the identification device long-term reliability, the recognition sensor (7) is inserted and/or enclosed on all sides in a recess (8) of the stiffening lip or tipping grip (6) on the rubbish container (2).
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: July 5, 1994
    Assignee: Fritz Schafer Gesellschaft mit beschrankter Haftung
    Inventor: Gerhard Schafer
  • Patent number: 5304744
    Abstract: A method of recording refuse in a container, where the refuse is poured into a container suspended in weighing cells on a refuse collection truck makes the weighing cells give an input to a computing device which calculates and records the weight of the refuse. The weighing container is then emptied, after which a new quantity of refuse can be weighed. For identification purposes each container is fitted with a transponder signalling to the computing device. The quantity of refuse in each container is hereby recorded thus permitting billing by quantity.
    Type: Grant
    Filed: February 17, 1993
    Date of Patent: April 19, 1994
    Inventor: Asger R. Jensen
  • Patent number: 5285860
    Abstract: The present invention concerns a process and a device for carrying out the process for weight determination of the contents of containers (5), for example for garbage. Two swivel arms (2) that are lifted by hydraulic devices (3) are mounted on a garbage collecting vehicle (1). The container (5) is carried by a fork (4). Integrated into the swivel arm (2) is a force measuring apparatus that comprises two flexural members (7) supporting the main load, two spring tongues (8), and a force transducer (11) that is installed between two stilts (12) between the spring tongues (8). The flexural members (7) and the spring tongues together form an elastic stepdown; the force transducer (11) thus only measures that part of the total load flowing through it as given by the stepdown. Further, a gradient meter (16) is mounted on the swivel arm (2), that has the same action line W as the force measurement device integrated in the swivel arm (2).
    Type: Grant
    Filed: April 27, 1992
    Date of Patent: February 15, 1994
    Assignee: Wirth Gallo Messtechnik AG
    Inventor: Johannes Wirth
  • Patent number: 5285020
    Abstract: A hydraulic by-pass control system is provided in the hydraulically operated lift assembly of a loader which uses double-acting hydraulic cylinders. The by-pass control system provides a low-resistance alternative pathway between the lowering circuit of the lift assembly and the hydraulic fluid tank. Accurate weighing measurement of the load on the lifting arms of the loader may be achieved by temporarily opening the alternative low-resistance pathway, thereby effectively converting the hydraulic circuit to a single-acting configuration during the taking of load cell signal measurements of back-pressure in the lift circuit.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: February 8, 1994
    Assignee: Alert-O-Brake Systems, Inc.
    Inventor: Zeljko T. Jurca
  • Patent number: 5264666
    Abstract: A cargo hook having fore and aft trunnions mounted in fore and aft bearings supported on frame members of a helicopter or the like, is provided with strain gauges secured in a bore in the aft trunnion for measuring shear strain on the trunnion by a load supported by the cargo hook. Additional strain gauges are secured in the aft trunnion bore for measuring axial and Poisson forces on the trunnion as the axis through the fore and aft trunnions varies from horizontal. The strain gauges are included in an electric circuit of a Wheatstone bridge and an indicator which converts the electric signals from the strain gauges to a readout of units of load weight. The strain gauges which measure axial and Poisson forces are connected in the electric circuit to compensate for the deviation from horizontal of the axis through the fore and aft trunnions, to provide an accurate readout of load weight applied to the cargo hook.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: November 23, 1993
    Assignee: Measurement Systems International
    Inventors: David C. English, David H. Fish, Ronald A. Wenzel
  • Patent number: 5245137
    Abstract: A method for determining a weight of material being emptied from a container is shown. The container is lifted to and lowered from an emptying position in a lift empty and lower cycle by an arm which has at least two sensors mounted on it. The method includes selecting at least one measurement position, calibrating the sensors by recording the respective outputs from each of the sensors for both an empty arm and for an arm lifting and lowering a calibrating weight. The outputs recorded for the calibrating weight can then be subtracted from the outputs recorded for the empty arm. Then, an unknown load can be lifted emptied and lowered with the output of the sensors being similarly recorded at the measurement position. By subtracting the output recorded during the lifting portion of the cycle for the unknown load from the output recorded during the lowering cycle for the unknown load a change in output for each sensor at the measurement position can be obtained.
    Type: Grant
    Filed: May 12, 1992
    Date of Patent: September 14, 1993
    Assignee: Mobile Computing Corporation
    Inventors: Allan Bowman, Ken Giffen
  • Patent number: 5243146
    Abstract: A load weighing apparatus for weighing a weight of a load on a vehicle comprises an intervening element provided between a body frame and a suspension for transmitting the weight of the load to the suspension from the body frame. The intervening element is formed of a magnetic material and has a plurality of bore sections. An excitation winding is wound about the intervening element through ones of the bore sections, while a measurement winding is wound about the intervening element through the remaining bore sections. An electric power source for applying voltage is connected to the excitation winding. A measuring unit for measuring voltage across the measurement winding is connected thereto.
    Type: Grant
    Filed: January 28, 1992
    Date of Patent: September 7, 1993
    Assignee: Yazaki Corporation
    Inventor: Katsuo Nishitani
  • Patent number: 5230393
    Abstract: A loader for a mobile refuse collection vehicle having a lift for engaging and transporting a refuse container from the ground to an elevated dump position and return. The container engaging means include a weighing device to provide a signal representative of the refuse weight. Discrete indicia, preferably machine readable, are associated with each container. The information relative to the refuse weight and container identification are processed and stored for billing and route management purposes. The weighing device preferably is a load cell. The corresponding method of determining the weight of collected refuse is also disclosed.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: July 27, 1993
    Inventor: Armand G. Mezey
  • Patent number: 5220968
    Abstract: A device for loading and moving loads, for example, a wheeled loader, track type loader, shovel loader, crane, scraper, back hoe, etc., is equipped with various sensors for determining when a load is being moved and what the weight and volume of the load is. The data from the sensor is buffered and supplied to a microprocessor. This is done for a period of time as the operator uses the loading device. The data accumulated for each load moved by the operator is used to determine the efficiency of the operator in using the device. A display provides the operator with various information regarding the load being moved, such as its weight and volume, or the total weight and volume of several loads delivered to a particular location, etc. The same display can be used to provide data regarding the efficiency and productivity of the operator during a work period. A printer is also provided to print out the data.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: June 22, 1993
    Inventor: Steven J. Weber
  • Patent number: 5209312
    Abstract: A method of recording refuse in a container, where the refuse is poured into a container suspended in weighing cells on a refuse collection truck makes the weighing cells give an input to a computing device which calculates and records the weight of the refuse. The weighing container is then emptied, after which a new quantity of refuse can be weighed. For identification purposes each container is fitted with a transponder signalling to the computing device. The quantity of refuse in each container is hereby recorded thus permitting billing by quantity.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: May 11, 1993
    Inventor: Asger R. Jensen
  • Patent number: 5209313
    Abstract: Lift weighing arrangements in which arms to lift supports carry strain gauges.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: May 11, 1993
    Assignee: Teledyne Industries, Inc.
    Inventors: Ronald F. Brodrick, Roger W. Masson
  • Patent number: 5178226
    Abstract: A load weighing system for refuse trucks preferably of the type using a front end loader which lifts, empties and lowers containers. Measurements are made of variable angles of pivoting elements and forces within hydraulic cylinders causing the pivoting elements to pivot. Other measurements are made of geometric constants in the apparatus. Sensors monitor the measured variables and the output is provided to a computational unit. The computational unit has been pre-programmed with the measured geometric constants and combines the variables with the constants to calculate a distance to the center of gravity of a container being emptied. Once the distance is calcuated, the measured force within the hydraulic cyinder can be used to calculate a weight. The weight of the container being lowered as calculated is then subtracted from the weight of the container raised as calculated. The resultant weight is the weight of the refuse emptied from the container.
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: January 12, 1993
    Inventors: Allan Bowman, Ken Giffen, Ron Statler