With Testing Patents (Class 177/50)
  • Patent number: 5567919
    Abstract: A gravimetric control system for supplying fuel and sorbent to a circulating fluidized bed boiler which includes a loop shaped continuous belt for moving materials in a generally horizontal direction. The apparatus includes first and second belt scales disposed at spaced axial points along the belt and apparatus for continuously moving the belt sequentially past the first belt scale and then past the second belt second belt scale and then dumping all material on the belt.
    Type: Grant
    Filed: December 22, 1993
    Date of Patent: October 22, 1996
    Assignee: Combustion Engineering, Inc.
    Inventor: Gary A. Cote
  • Patent number: 5567918
    Abstract: A method and apparatus for initiating a weighing scale operation, including a quick start program operable either by the tare key of the weighing scale or by the application of a load to the load-receiving member of the scale to by-pass a start-up test program, and to connect directly a weighing program to a display, thereby to avoid the display and confirmation of a start-up test program. Upon the reenergization of the signal processing unit following a power failure, the test program is automatically displayed on the display device.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: October 22, 1996
    Assignee: Mettler-Toledo AG
    Inventors: Rudolf Bachmann, Beat Hartmann
  • Patent number: 5563384
    Abstract: Improved bulk density sampler is provided for continuous sampling of material flowing in a material processing stream which includes a sampling assembly including a receptacle of known volume mounted on and secured to a load cell configured to selectively measure the assembly weight both when the sampling assembly receptacle is full and empty. Preferably, the bulk density sampler includes a housing for protection of the sampling assembly and receptacle from product stream and other debris which may be present in the operating environment during the weight measurement. The bulk density sampler also preferably includes a programmable controller which controls the operation of the bulk density sampler and provides additional functionalities such as trend chart analysis, alarm functions, and sampling frequencies.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: October 8, 1996
    Assignee: III Sigma Company
    Inventors: Brian S. Marlow, Ronald J. Roman, Robert Stanton
  • Patent number: 5553485
    Abstract: An apparatus assembly for monitoring the rehydration kinetics of dehydrated products has an enclosure formed by a cage for holding the products and by a cover for the cage surmounted by a hollowed rod. In use, the enclosure is connected via the rod with the pan of a balance so that it is suspended over the balance pan. The lattice-work of the side portion of the cage is configured so that when the cage is immersed in water, the lattice-work allows water to pass therethrough but prevents air from escaping from the cage through the lattice-work.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: September 10, 1996
    Assignee: Nestec S.A.
    Inventors: Carine Kaabi, Pierre Lambelet, Yvan Rossier, Alfred Seiler
  • Patent number: 5550328
    Abstract: An electronic scale is disclosed having a device for recalibrating the scale from time to time after the scale is moved from the factory to a site of installation in order to adjust the scale for physical and/or environmental operating conditions which are different from those which prevailed at the factory when the scale was originally calibrated after the completion of manufacture and which have an adverse effect on the accuracy of the scale if the scale is not recalibrated under these conditions. The scale is provded with a device which adds a predetermined fixed weight to the load cell of the scale at any desired time or interval of time, and an electronic count indicative of this weight at the site of installation is compared with an electronic count of the same weight taken at the factory and stored in a memory, and the digital readout of the scale is then adjusted by an amount which is the same as the ratio of the original count of the weight and the count thereof taken at the site of installation.
    Type: Grant
    Filed: December 10, 1993
    Date of Patent: August 27, 1996
    Assignee: Pitney Bowes Inc.
    Inventors: Gerald C. Freeman, Paul C. Talmadge
  • Patent number: 5550327
    Abstract: A core conveyor system for electric motor manufacturing apparatus, including a core weighing station for improving the accuracy of stock measurement in manufacturing electric motor stator and rotor laminated stacks or cores from sheet stock. Stock is initially measured to determine a measured stack thickness The weight of the manufactured stack is used to calculate the thickness of the stock material used. The calculated thickness is used to recalibrate the measured stock thickness. The weight of the stack, if not between a selected maximum and minimum values, determines if the height of the manufactured stack is acceptable. The core conveyor also includes secondary stations for other core manufacturing operations.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: August 27, 1996
    Assignee: L.H. Carbide Corporation
    Inventor: Thomas R. Neuenschwander
  • Patent number: 5539157
    Abstract: A multi-check metering method employing load cells, characterized in that a plurality of load cells preferably stacked one upon another are attached to a metering table, a meterial to be metered is placed on said metering table, said load cells are operated simultaneously by applying thereto the weight of said material, and respective metered weights of said material are displayed by metered-weight display means based on output signals sent from said load cells; and a load cell metering device comprising a metering table, a plurality of load cells and metered-weight display means.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: July 23, 1996
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Masashi Kobayashi, Hiroyuki Ohyama, Hideshi Tokubuchi, Kazuo Nakamura
  • Patent number: 5535635
    Abstract: Composite sample storage and measurement system having a divided vessel for receiving samples, the first part of which stores the samples received, and a second part of which, isolated by a flexible membrane, contains a standard fluid which is displaced to a reservoir to determine the weight of standard fluid displaced, and therefore, the volume of sample received. The reservoir, the flexible line from vessel to reservoir and the vessel are maintained under superatmospheric pressure to assure sample integrity.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: July 16, 1996
    Assignee: McFarland Pump Co.
    Inventor: Daniel G. Shaw
  • Patent number: 5488202
    Abstract: A weighing device for the self-service registration of goods in stores contains a floor scale (2), which is disposed in an upwardly open standing container (3). The floor scale (2) has a suspension device (8) for at least one carrying container (11) which is removable from it. It is protected by the standing container (3) against accidental influences from outside, so that prolongations of the weighing procedure are prevented. As a result of the arrangement of the carrying container (11) on the floor balance (3), the departure of the customer with the weighed goods from the weighing area is speeded up. As the weighing receptacle in the standing container (3), a shopping container, for example a shopping cart (21), can also be used. For this purpose, the floor scale (50, 60) is in this case of U-shaped configuration in top view and is provided with bearing elements (52, 71) for the shopping container.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: January 30, 1996
    Assignee: Siemens Nixdorf Informationssysteme Aktiengesellschaft
    Inventors: Gunter Baitz, Rainer Ihlenburg
  • Patent number: 5459288
    Abstract: Continuous belt weighing machine for fibre tufts. The fibre tufts are opened by an opening unit and drop onto a transport belt with weighing cells. The speed of the transport belt is constant, the speed of the feed cylinders is varied in accordance with the measurements.
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: October 17, 1995
    Inventor: Hubert A. Hergeth
  • Patent number: 5449864
    Abstract: Vehicles are screened by weight for the presence of concealed explosive material, weapons, contraband and/or personnel by retrieving weight values for vehicles and categories of occupants and contents based on operator input and subtracting those values, as selections are made by an operator, from a measured vehicle weight. Excess weight is then compared to a specified tolerance, and the vehicle may be cleared or other appropriate action taken, including automatic control of movable barriers. The estimate of a weight value for various categories of vehicle occupants is adaptively altered to improve screening accuracy.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: September 12, 1995
    Inventors: Jeffrey K. Beatty, Marian P. Tyree
  • Patent number: 5440076
    Abstract: The invention relates to an apparatus for automatically weighing a bulk puct of particle-like material such as grain for example with a set weight, provided with a weighing bunker, automatic supply and discharge means for feeding the particle-like material to and from the bunker respectively, weighing means for the weighing bunker provided with a number of electromechanical load cells on a number of suspension points for detecting the weight of the weighing bunker and for giving an electrical signal which is proportional to the force exercised on the load cell and which signal is used for controlling the supply and discharge means, and in which weight-checking means are present for checking the correctness of the measured values given by the load cells (17) for the final determination of the total weight of the weighing bunker.
    Type: Grant
    Filed: January 6, 1993
    Date of Patent: August 8, 1995
    Assignee: Eerste Nederlandse Fabrlek van Weegwerktuigen Jan Molenschot BV
    Inventor: Jan van Roostselaar
  • Patent number: 5410108
    Abstract: A data gathering system including a scanner and scale including one or more of the following features: a construction of compact dimensions with a low profile; integrated construction of the locations of the scanner and scale, and their associated components; modular components that are easily detachable and serviced; a rigid casing which is integrated into the overall data gathering system and which prevents a countertop from contacting the scale; and diagnostic capability incorporated into the data gathering system.
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: April 25, 1995
    Assignee: Spectra-Physics Scanning Systems, Inc.
    Inventors: Kevin J. Williams, Alexander M. McQueen, James E. Colley, Anthony S. Bailey, Phillip C. Gummeson
  • Patent number: 5408054
    Abstract: A method and apparatus for weighing an object in which the object is moved to, and tipped over, a tip point. A signal representative of the weight of the object is generated as the object is tipped over the tip point. The apparatus may include a conveyor for moving the object toward the tip point, which may be supported by a load sensor that generates the signals representative of the object weight.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: April 18, 1995
    Assignee: United Parcel Service of America, Inc.
    Inventors: Alexander Brandorff, John W. Sussmeier, Steven L. Smith
  • Patent number: 5399815
    Abstract: Method for on-line process control of yarns wound upon reels intended for yarn package classification and sorting into homogeneous classes of predetermined quality standards. This method consists in the determination of the specific weight of the yarn bundling on the reel. This value is utilized to check the yarn package compliance with preset standard values of the technological properties, in particular of the dyeing affinity.
    Type: Grant
    Filed: April 8, 1993
    Date of Patent: March 21, 1995
    Assignee: Val Lesina S.p.A.
    Inventor: Vito Ballarati
  • Patent number: 5383561
    Abstract: A weight checker-sorter successively weighs products each expected to contain a specified number of articles all weighing about the same, and uses a standard weight value to determine whether weighed products each contains the intended number of articles. Measured weights of products within a predefined range are stored. The standard weight value is updated frequently by averaging a specified plural number of most recently stored weights.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: January 24, 1995
    Assignee: Ishida Co., Ltd.
    Inventor: Harunori Tokutu
  • Patent number: 5380957
    Abstract: A method of and apparatus for weighing particulate material, in which the particles are delivered onto a dish which is rotated to throw off the particles into a collector (7), the dish having an electric drive means powered from a controlled current source (1), and a circuit responsive to variations in the controlled drive current which produces an output signal representative of variations in said drive current due to transit of particles via the dish, thereby signalling meas flow.
    Type: Grant
    Filed: May 4, 1993
    Date of Patent: January 10, 1995
    Inventor: Alan F. Giles
  • Patent number: 5378860
    Abstract: The invention relates to a system for the prevention of theft in salesrooms. The weight of a customer is measured when he enters and when he leaves the salesrooms, and the two measurements are compared. According to the invention, a zone for placing the goods on a conveyor belt is separated spatially from a zone for paying for the goods. The zone for paying can be reached only after passing of an exit installation having a weighing device.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: January 3, 1995
    Inventors: Heinz Dingfelder, Heinz Boxleitner
  • Patent number: 5375634
    Abstract: A liquid dispensing and control system having dispensing nozzles positioned for dispensing into a receptacle on a weight-sensing device, where all dispensing nozzles are respectively coupled to liquid pumps for delivering liquids from different containers to the nozzles, and a control computer connected to the weight-sensing device and to the pumps and dispensing nozzles to control the flow rate and delivery of liquids.
    Type: Grant
    Filed: October 7, 1993
    Date of Patent: December 27, 1994
    Assignee: Graco Inc.
    Inventor: Paul R. Egger
  • Patent number: 5373115
    Abstract: The method and apparatus for verifying that the correct postage has been paid includes a mail processing machine which is adapted to receive properly oriented mail via a transport from a facet apparatus. The mail processing machine includes a scale for weighing a mailpiece having postage affixed thereto for the purpose of cancelling it with a mark which includes the actual postage which should be affixed. In a further embodiment other information necessary to calculate the necessary postage is obtained by reading the information from the mailpiece. Any discrepancies between the postage affixed and the amount of postage which should actually be paid may be noted at acceptance or seen by the carrier as the mail is delivered. A batch of mail may be sampled to select representative mailpieces in a random manner and verified to compare the calculated total of postage required based on the sample to the postal amount paid for the batch by the sender.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: December 13, 1994
    Assignee: Pitney Bowes Inc.
    Inventors: Flavio M. Manduley, Leon A. Pintsov
  • Patent number: 5367129
    Abstract: A scale for measuring total weight/top weight of a bowling ball includes the utilization of a pair of electronic load cells supporting a moment transfer plate with the load cells being connected to a meter. In one form of the invention, the ball is centered over the load cells with its heavy spot in predetermined alignment so as to affect one load cell differently than the other. The ball is weighed simultaneously by both load cells, the total weight is determined by adding the outputs and the difference in output is used by the meter to calculate the top weight which is displayed. In another form of the invention, both a top weight and a total weight load cell are provided and the meter calculates the top weight directly from the top weight load scale.
    Type: Grant
    Filed: January 7, 1993
    Date of Patent: November 22, 1994
    Inventor: Clarence G. Lahl, Jr.
  • Patent number: 5365021
    Abstract: A core conveyor system for electric motor manufacturing apparatus, including a core weighing station for improving the accuracy of stock measurement in manufacturing electric motor stator and rotor laminated stacks or cores from sheet stock. Stock is initially measured to determine a measured stack thickness. The weight of the manufactured stack is used to calculate the thickness of the stock material used. The calculated thickness is used to recalibrate the measured stock thickness. The weight of the stack, if not between a selected maximum and minimum values, determines if the height of the manufactured stack is acceptable. The core conveyor also includes secondary stations for other core manufacturing operations.
    Type: Grant
    Filed: June 4, 1993
    Date of Patent: November 15, 1994
    Assignee: L. H. Carbide Corporation
    Inventor: Thomas R. Neuenschwander
  • Patent number: 5345042
    Abstract: In an elevator hitch load weighing assembly, a load cell provides an analog load signal to a summer 12, where an analog tare compensation signal is subtracted from the load signal prior to a compensated load signal being provided to an analog-to-digital converter (ADC) 20; the digital load signal is provided to a remaining tare subtractor 26 where tare remaining in the digital load signal is subtracted and a payload provided.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: September 6, 1994
    Assignee: Otis Elevator Company
    Inventor: Eric K. Jamieson
  • Patent number: 5340950
    Abstract: A method and apparatus for weighing an object in which the object is moved to, and tipped over, a tip point. A signal representative of the weight of the object is generated as the object is tipped over the tip point. The apparatus may include a conveyor for moving the object toward the tip point, which may be supported by a load sensor that generates the signals representative of the object weight.
    Type: Grant
    Filed: September 15, 1992
    Date of Patent: August 23, 1994
    Assignee: United Parcel Service of America, Inc.
    Inventors: Alexander Brandorff, John W. Sussmeier, Steven L. Smith
  • Patent number: 5324893
    Abstract: The method and apparatus for verifying that the correct postage has been paid includes a mail processing machine which is adapted to receive properly oriented mail via a transport from a racer apparatus. The mail processing machine includes a scale for weighing a mailpiece having postage affixed thereto for the purpose of cancelling it with a mark which includes the actual postage which should be affixed. In a further embodiment other information necessary to calculate the necessary postage is obtained by reading the information from the mailpiece. Any discrepancies between the postage affixed and the amount of postage which should actually be paid may be noted at acceptance or seen by the carrier as the mail is delivered. A batch of mail may be sampled to select representative mailpieces in a random manner and verified to compare the calculated total of postage required based on the sample to the postal amount paid for the batch by the sender.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: June 28, 1994
    Assignee: Pitney Bowes Inc.
    Inventors: Flavio M. Manduley, Leon A. Pintsov
  • Patent number: 5322977
    Abstract: The method and apparatus for verifying that the correct postage has been paid includes a mail processing machine which is adapted to receive properly oriented mail via a transport from a racer apparatus. The mail processing machine includes a scale for weighing a mailpiece having postage affixed thereto for the purpose of cancelling it with a mark which includes the actual postage which should be affixed. In a further embodiment other information necessary to calculate the necessary postage is obtained by reading the information from the mailpiece. Any discrepancies between the postage affixed and the amount of postage which should actually be paid may be noted at acceptance or seen by the carrier as the mail is delivered. A batch of mail may be sampled to select representative mailpieces in a random manner and verified to compare the calculated total of postage required based on the sample to the postal amount paid for the batch by the sender.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: June 21, 1994
    Assignee: Pitney Bowes Inc.
    Inventors: Flavio M. Manduley, Leon A. Pintsov
  • Patent number: 5321634
    Abstract: In an automatic thin-film measuring apparatus, the zero point of a precision balance is corrected according to directions from a data processing unit before and after the weight of a semiconductor substrate is measured, the surface temperature of the semiconductor substrate laid on a pan of the precision balance is measured, and the weight of the semiconductor substrate is measured when the surface temperature reaches a predetermined value. Furthermore, the cycle of variations in the zero point is found when the zero point is corrected, and the weight measurement of the semiconductor substrate is conducted during an integer multiple of the change cycle. Therefore, it is possible to enhance the precision of the weight measurement and its reproducibility and to shorten the measurement time without being influenced by low-frequency vibrations.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: June 14, 1994
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masanori Obata, Jyunichi Arima, Yoshihiro Hirata
  • Patent number: 5308932
    Abstract: The method and apparatus for verifying that the correct postage has been paid includes a mail processing machine which is adapted to receive properly oriented mail via a transport from a facer apparatus. The mail processing machine includes a scale for weighing a mailpiece having postage affixed thereto for the purpose of cancelling it with a mark which includes the actual postage which should be affixed. In a further embodiment other information necessary to calculate the necessary postage is obtained by reading the information from the mailpiece. Any discrepancies between the postage affixed and the amount of postage which should actually be paid may be noted at acceptance or seen by the carrier as the mail is delivered. A batch of mail may be sampled to select representative mailpieces in a random manner and verified to compare the calculated total of postage required based on the sample to the postal amount paid for the batch by the sender.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: May 3, 1994
    Assignee: Pitney Bowes Inc.
    Inventors: Flavio M. Manduley, Leon A. Pintsov
  • Patent number: 5308930
    Abstract: A weighing machine has a weighing conveyor with a conveyor belt supported by a load cell and uses a digital filter to eliminate high-frequency components of weight signals from the weighing conveyor. In order to improve accuracy of measurement, operating conditions of the digital filter are set with regard to the length of the object to be weighed. Alternatively, time required for the object to be completely on the conveyor belt may be calculated or the timing for the zero-point adjustment for the load cell may be adjusted accordingly.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: May 3, 1994
    Assignee: Ishida Scales Mfg. Co., Ltd.
    Inventors: Harunori Tokutu, Shoko Tajiiri, Yukio Wakasa
  • Patent number: 5308931
    Abstract: A digital scale is compensated for hysteresis by characterizing an envelope pattern of increasing and decreasing linearity attributes thereof defining the limits of hysteresis error. Polynomial expressions define this envelope pattern and a correction procedure is developed which is based upon offsets from the envelope pattern as well as the merging characteristics of deviations evidenced from complex loading histories. The latter historical data are used to identify loading progression transitions necessary for the generation of correction values.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: May 3, 1994
    Assignee: Mettler-Toledo, Inc.
    Inventor: Neil C. Griffen
  • Patent number: 5304745
    Abstract: A modular checkweigher/grader system is disclosed. A feed conveyor is provided for directing items to be weighed to a weighing conveyor. The entire system is modularly designed using lightweight durable materials, such as plastics and stainless steel. Each conveyor includes a conveyor belt in contact with upper and lower surfaces of a platform. The belts are tightened and loosened with quick release tension clamps and driven by air powered motors. The feed conveyor is attached to a frame by toggle clamps. The weighing conveyor is attached to a load cell which is connected to the frame by toggle clamps. These toggle clamps permit the entire feed and weighing conveyors to be easily removed. All of the air and electrical connector to the conveyors are by quick release connectors. The entire weighing conveyor is used as the weighing platform. A tachometer may be used to regulate the conveyor speed. A modular grading conveyor is disclosed for categorizing objects from the weighing conveyor.
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: April 19, 1994
    Assignee: Fairbanks Inc.
    Inventors: Frank J. Rusk, Alec T. Douglas, Walter W. Sevigny, Harry J. Keen
  • Patent number: 5300736
    Abstract: A method and apparatus for an in-motion weighing system which includes a package conveyor, a weigh pan, a package detector positioned adjacent to the conveyor and upstream from the weigh pan, a timer for determining the time required for a package to pass by the package detector, means for storing the time required for a point on the conveyor to transition the weigh pan, means for subtracting the package passing time from the weigh pan transition time for establishing a read scale window, and a means for measuring the average weight of a package on the weigh pan during the read scale window.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: April 5, 1994
    Assignee: Hi-Speed Checkweigher Co., Inc.
    Inventor: Steven P. Ehrhardt
  • Patent number: 5293007
    Abstract: Holes are drilled in the flexure regions of a parallel beam load cell (14), the flexure regions defined by two cut-out portions (26 and 28) which extend between the longitudinal side surfaces (36 and 38) of the load cell (14). The holes extend inwardly of the load cell in the longitudinal side surfaces thereof. The location and depth of the holes are dependent upon the moment balance correction necessary.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: March 8, 1994
    Assignee: Stress-Tek, Inc.
    Inventors: Timothy J. Darst, Mona L. Mundhenk
  • Patent number: 5270494
    Abstract: A self-contained stand-alone weighing system (10) comprises at least one weight supporting surface (24) for bearing the weight of an object, at least one transducer (60) coupled to the weight supporting surface (24) for producing a signal indicative of the weight, and a processor (66) for receiving the signal and producing a resultant weight signal. The resultant weight signal is then represented in a form perceptible to humans by a weight indicator (38). The self-contained weighing system (10) also comprises a rechargeable battery (36) for supplying electrical energy, and a housing (12,14) for enclosing the weighing system (10) to form a single unit.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: December 14, 1993
    Assignee: General Electrodynamics Corporation
    Inventors: Dick E. Davis, Charles B. Brazell, James W. Manley
  • Patent number: 5264665
    Abstract: A computer directed system is disclosed for optimizing the tracking of mailing pieces containing various inserts and increasing the efficiency and cost benefits derived from utilizing a postal agency's mailing discount rates for sending the mailing pieces through the mail. Weight and thickness data for each mailing piece are employed by the system for the optimization.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: November 23, 1993
    Inventor: Frank W. Delfer, III
  • Patent number: 5262597
    Abstract: There is provided a system for processing international priority airmail. The system includes a weigh in station for weighing the total weight of received priority airmail, a recordal station for recording the total number of pieces of the received airmail and for establishing criteria to identify the airmail in the system, an affixing station, located downstream of the weigh in and recordal stations, for affixing indicia onto the airmail; and a sorting station, located downstream of the affixing station, for sorting the airmail by country. The system also includes a processing unit that stores received information and processes the stored information to derive processed information, and a weighing and processing station, located downstream of the sorting station.
    Type: Grant
    Filed: May 15, 1992
    Date of Patent: November 16, 1993
    Assignee: Johnson & Hayward, Inc.
    Inventor: Jacob C. Johnson, Jr.
  • Patent number: 5257668
    Abstract: This invention relates to a system for mounting and removal of one or more electronic load cells (or similarly configured spacers) of the type used in heavy capacity industrial weight scales. In addition to the mounting of the load cells the system provides a means for the selective application or removal of weight normally applied to the load cells (or similarly configured spacers) through a scale apparatus. The system thus facilitates the testing, calibration, or replacement of the load cells.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: November 2, 1993
    Assignee: Beowulf Corporation
    Inventors: Michael P. Sargent, Timothy W. Williams
  • Patent number: 5253534
    Abstract: A calibrating device for use with centrifugal, pendulum or other types of broadcast spreaders which distribute dry granular materials to be soil for agricultural purposes is described. The device provides containment of granular materials while the spreader operates without hindrance over a predetermined distance. The invention permits the rapid and efficient calibration of broadcast spreaders and thus ensures that optimal application rates of agricultural materials will be delivered with attendant cost savings and other operational advantages.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: October 19, 1993
    Inventor: George W. Hamilton, Jr.
  • Patent number: 5251476
    Abstract: A novel method for determining a coefficient of moisture expansion of a single, identified workpiece or coupon. The method includes the steps of positioning the workpiece in a chamber having known environmental parameters; determining a workpiece length change .DELTA.L caused by a chamber induced change in the workpiece moisture content .DELTA.M, by positioning first and second transformers to opposite ends of the single workpiece; and, measuring a chamber induced change in the workpiece moisture content .DELTA.M, by weighing the workpiece.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: October 12, 1993
    Assignee: Eastman Kodak Company
    Inventors: James F. Gilmore, Carl A. Lloyd
  • Patent number: 5244020
    Abstract: A dispenser of foodstuff is particularly well adapted to deliver cheese for pizza making. A refrigerator contains a bin which may be completely removed from said refrigerator for cleaning, as in a dishwasher, for example. The bin features inwardly sloping walls so that the cheese does not normally stick to the wall. An auger delivers the cheese to a spout where a star wheel meters flow and breaks up any clumps in the cheese. A spring biased trap door closes the spout, especially when the bin is removed from the refrigerator. The refrigerator contains parts which control the opening and closing of the trap door and the turning of the auger. The entire system operates under the control of a programmable microprocessor which includes means for detecting when the bin is empty or is failing to delivery the cheese.
    Type: Grant
    Filed: July 24, 1991
    Date of Patent: September 14, 1993
    Assignee: Middleby Marshall Inc.
    Inventors: Adrian A. Bruno, Richard Caron, Gorm Bressner, Kevin Barnes, Philip Carbone, Robert Simek
  • Patent number: 5241138
    Abstract: A core conveyor system for electric motor manufacturing apparatus, including a core weighing station for improving the accuracy of stock measurement in manufacturing electric motor stator and rotor laminated stacks or cores from sheet stock. Stock is initially measured to determine a measured stack thickness. The weight of the manufactured stack is used to calculate the thickness of the stock material used. The calculated thickness is used to recalibrate the measured stock thickness. The weight of the stack, if not between a selected maximum and minimum values, determines if the height of the manufactured stack is acceptable. The core conveyor also include secondary stations for other core manufacturing operations.
    Type: Grant
    Filed: February 13, 1992
    Date of Patent: August 31, 1993
    Assignee: L. H. Carbide Corporation
    Inventor: Thomas R. Neuenschwander
  • Patent number: 5239136
    Abstract: The pressure adjustment device for adjusting the pressure applied to a bottle during a ferruling operation includes a stationary vertical column on which a sleeve is rotatably supported; the sleeve is closed, at its top, by a horizontal disk for supporting a bottle. A loading cell is arranged between the disk and the top of the column and is connected to a device for controlling the pressure which acts on the disk.
    Type: Grant
    Filed: December 2, 1991
    Date of Patent: August 24, 1993
    Assignee: Macofar S.p.A.
    Inventor: Franco Chiari
  • Patent number: 5239137
    Abstract: For the calibration of an electronic measurement system with sensors which are arranged in pairs on structural parts of an airplane undercarriage which are loaded transverse to the lengthwise direction and which give off measurement signals which correspond to the vertical displacement between two sensor attachment points which are staggered from each other in the lengthwise direction of the structural parts, the pair of sensors which form a measurement point in each case being arranged approximately in the horizontal central plane of the structural part at positions opposite each other on the outside, a method is proposed in which a separate scaling factor is determined for each sensor of the pair of sensors. For this purpose, the measurement signals and weights are preferably determined for at least two conditions of loading of the airplane which are as far apart as possible and, furthermore, in connection with at least two different torsional conditions of the loaded structural part.
    Type: Grant
    Filed: March 19, 1992
    Date of Patent: August 24, 1993
    Assignee: VDO Adolf Schindling AG
    Inventor: Hans N. Patzig
  • Patent number: 5230394
    Abstract: The invention relates to a device for conveying products, in particular fruit, adapted to sort automatically these products. This device comprises a plurality of chassis (3) distributed along a conveyor (1) and each supporting a carriage (8) bearing two rollers (19) mounted on an axis (6) of this chassis so as to be able to oscillate vertically and tilt laterally. This device further comprises weighing means comprising slideways disposed in the alignment of support shoes (16, 18) with which each carriage (8) is provided, these slideways being provided with end ramps arranged such that the carriages are driven in a floating manner along the slideways. This device further comprises separation means adapted to carry out, at the loading zone of the conveyor, an ordered arrangement of the products allowing each of them to be disposed on a carriage.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: July 27, 1993
    Assignee: Material pour l'Arboriculture Fruitiere
    Inventor: Phillippe Blanc
  • Patent number: 5230391
    Abstract: A weigher-conveyor has a conveyor which is for transporting an object and is supported by a weighing device such that the weight of the object on the conveyor can be measured while it is being transported. A detector is disposed near the downstream end of the conveyor and, when the presence of an object on the conveyor is detected, a control unit determines whether weight signals from the weigher are already stable. If they are stable, the conveyor continues to be driven and a weight value indicated by the stabilized weight signals is outputted. If they are still unstable, the conveyor is stopped until the weight signals stabilize. A weight value indicated by the stabilized weight signals is outputted in this situation.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: July 27, 1993
    Assignee: Ishida Scales Mfg. Co., Ltd.
    Inventors: Hajime Murata, Shinsuke Sakamoto
  • Patent number: 5211252
    Abstract: An apparatus for automatically measuring the basis weight and moisture content of a wet reconstituted tobacco web is disclosed. A specimen of the wet web is placed on a cutting surface of the apparatus and smoothed flat. A cutter is automatically positioned by a joy stick over the specimen and a test sequence is initiated. The cutter cuts out a sample of known area and transports the sample to a scale for weighing the sample in its wet and dry states. After the wet weight of the sample is entered into a computer, a heater dries out the sample while it remains on the scale. When the sample is dried, its dry weight is entered into the computer. Based on the wet and dry sample weights and the known sample area, the basis weight and moisture content of the reconstituted tobacco web is calculated by the computer. A disposal device removes the spent sample from the scale by suction and discards it into a waste receptacle.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: May 18, 1993
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Richard M. Henderson, Tonya R. Young, Tommy L. Hickman, W. Richard Clendaniel, Edward L. Dickinson, Patsy A. Coppola
  • Patent number: 5205367
    Abstract: A stacker-cutter-weigher apparatus for supplying a continuous supply of a product having a preselected weight which comprises extruding a continuous stock of polymeric material having a substantially stable cross-sectional area, cutting the stock into finite sections, and placing the sections on a scale. The measured weight is sensed by a central control which adjusts the length of the next section so as to adjust the weight thereof. A further adjustment occurs as each section is placed on the scale. This provides a final product having a substantially preselected weight.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: April 27, 1993
    Assignee: Wacker Silicones Corporation
    Inventors: Lee R. Andre, Mark E. Salemka
  • Patent number: 5193630
    Abstract: During the transfer into the weighing unit (K), the bottle (F) is held in the compartment (S1) of the transfer container (C), preferably by suction. An elevating comb (4) which receives the bottle extracted from the micro-feeder and which with a subsequent lowering movement deposits it on the underlying grid-shaped platform (8) of the balance (9) operates in the weighing unit. This platform is provided, for each transfer container (C), with a shallow recess (10), ideally in the form of a horizontal downward-converging truncated cone, in which the bottle centers itself under the effect of gravity, moving away from the walls of the container and from the fixed lateral guides in order not to distort the action of the balance.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: March 16, 1993
    Assignee: IMA Industria Macchine Automatiche S.p.A.
    Inventor: Alessandro Cane
  • Patent number: 5191543
    Abstract: An electronic balance with a measured value receiver, a digital signal processing unit, a display unit and a calibrating device controlled by the digital signal processing unit (18) for placing on and lifting off a calibrating weight by use of a motor that the digital signal processing unit allows the calibrating weight to be continuously placed on and lifted off again and calculates the average value and the standard deviation from the individual measured values.
    Type: Grant
    Filed: October 19, 1990
    Date of Patent: March 2, 1993
    Assignee: Sartorius AG
    Inventors: Dieter Berthel, Franz-Josef Melcher
  • Patent number: 5184754
    Abstract: A gravimetric system for feeding flowable, solid, particulate materials includes an open-topped trough receiving the material from a hopper at one end and discharging it from the other end at a desired rate in terms of weight per unit of time. The trough is formed in two, longitudinally aligned and continuous sections with a rotatable auger extending through the hopper and trough to move the material from the hopper to the discharge end of the trough. The first trough section is fixedly supported and the second section is supported at two spaced points on each side in an essentially frictionless manner by contact of pointed terminal ends of upwardly extending pins with conical recesses in blocks affixed to the sides of the second trough section.
    Type: Grant
    Filed: October 18, 1990
    Date of Patent: February 9, 1993
    Inventor: Thomas N. Hansen