Scale Bearings Patents (Class 177/DIG9)
  • Patent number: 6150619
    Abstract: A support base for a measuring cell including a base plate with a bore and an annular groove defined therein, and a planar pressure surface machined therein. A load pin is connected to the base plate to provide articulated support for a load. The load pin has a threaded shank adaptable to adjust its height relative to the measuring cell and terminates in a pressure head with a convex pressure surface and an annular groove defined therein. The pressure head of the load pin is inserted with play into the bore of said base plate. A resilient ring is disposed between the annular grooves to connect the base plate and the pressure head.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: November 21, 2000
    Inventor: Johannes Borngasser
  • Patent number: 6046412
    Abstract: A heavy duty weigh scale including a rectangular weighing platform constructed of parallel and spaced apart I-beams, which platform is carried above ground with at least one stand supporting an I-beam of the platform. The stand having a pair of spaced apart upright supports of approximately the same length for supporting a load cell. The weight of the platform and object being weighed being directed to the load cell through a weight-transfer link connected to the platform. The weight-transfer link being located in a cut-out opening provided in the web of the I-beam supported by the stand.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: April 4, 2000
    Inventor: Daniel J. Rockwell
  • Patent number: 5902966
    Abstract: A grain drill add-on consists of load cells that suspend a grain drill's seed tank or hopper above the body of the grain drill. By adding mounting brackets that connect the load cells to the hopper and to the body of the grain drill, and by connecting the load cells to a digital readout visible to the operator, the downward weight of the hopper will cause deflections in the load cells which are translated into measurable weights displayed to the operator.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: May 11, 1999
    Inventor: Ken VonMuenster
  • Patent number: 5892181
    Abstract: A structure for mounting sensing devices for measuring a vehicle load which allows the sensing device to obtain a detection value according to the actual load without being affected by the loading condition of baggage on the rear body, the inclination condition of the road, the steering condition of a handwheel, and the like. In a structure for mounting sensing devices 7 for measuring a load on an axle member 5 in which a load G of the vehicle is dispersedly imposed on both ends, recessed housing portions 5f and 5g are formed along the axial direction of the axle member 5 in both end portions 5a and 5b of the axle member 5, respectively. The sensing devices 7 are housed, mounted, and fixed in the recessed housing portions 5f and 5g, while the directions of the sensing devices 7 in a circumferential direction and a radial direction of the axle member 5 are made coincident with each other.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: April 6, 1999
    Assignee: Yazaki Corporation
    Inventor: Naoya Takahashi
  • Patent number: 5866855
    Abstract: A general purpose belt scale for measuring the weight of material being transported on a conveyor belt includes a pair of load beams, each having a load cell in combination with a force and torque isolator mechanism that isolates the load cell from disturbance forces and torques that would increase the measurement errors. Absence of a crossbar enables the two independent load beams to fit a wide variety of belt widths. Selection of the capacity of the load cells after the weighing application has been determined completes the general applicability of the belt scale for both belt width and load weighing requirements. An alternative embodiment of a selectable mounting location for the load cell within each load beam allows the weight capacity of the belt scale to be varied without changing the load cell's weight capacity.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: February 2, 1999
    Assignee: Engineering Services and Systems, Inc.
    Inventor: Chester L. Nachtigal
  • Patent number: 5859390
    Abstract: A scale mounting apparatus is provided for coupling a fixed support frame to a movable weigh frame. The apparatus includes a load cell having a first end rigidly coupled to the support frame and a second, movable end, a mounting bracket coupled to the weigh frame, an elastomeric mounting block, and a fastener for coupling the mounting block and the mounting bracket to the second movable end of the load cell.
    Type: Grant
    Filed: October 23, 1996
    Date of Patent: January 12, 1999
    Assignee: Hill-Rom, Inc.
    Inventors: Daniel G. Stafford, William E. Armstrong
  • Patent number: 5831222
    Abstract: A measuring device including a substantially horizontal shaft having a longitudinal axis and a groove defined transverse thereto. The shaft is mounted with clearance in a substantially non-circular opening defined in the lateral supports of a supporting device, the clearance being provided at least in an area opposite the groove. A bearing pin is secured to the supporting device and partially engages the groove defined in the shaft, thereby axially and non-rotatably securing the shaft to the supporting device. A load measuring element is fixedly mounted to the supporting device and supports the end of the shaft longitudinally opposite the location of the groove. The load measuring element is preferably provided with wire strain gauges or microswitches, which permit simple measurement of the load. A pulley is rotatably supported by an annular pivot bearing for rotation about the shaft to transfer the load from the shaft to the bearing pin and load measuring element.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: November 3, 1998
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Alfred Fanger, Udo Gersemsky, Karl Zacharias
  • Patent number: 5801338
    Abstract: A platform weighing scale includes a base with vertical corner stands and a weight supporting platform including depending corner bearings. A weight sensing apparatus is supported on the base corner stands and supports the weight supporting platform so that it is moveable relative to the base. A weight sensing mechanism is responsive to movement of the platform for operating a weight indicating device. The weight sensing mechanism includes a plate operatively associated with the weight indicating device. A pair of primary levers are secured at one end to the plate and diverge therefrom relative to a longitudinal centerline and define a select angle therebetween. Each primary lever includes an upper notch receiving one of the corner bearings and a lower notch receiving one of the corner stands so that movement of the platform causes pivotal movement of the levers to move the plate.
    Type: Grant
    Filed: October 22, 1996
    Date of Patent: September 1, 1998
    Assignee: Metro Corporation
    Inventor: Sidney Williamson
  • Patent number: 5801339
    Abstract: Load measuring apparatus particularly but not solely for the weighing of animals is supported on load-bearing feet. Each load bearing foot provides an electrical signal indicating the load thereon and the sum of the electrical signals indicates the total load. Each load bearing foot has a strut which is in use attached to the load, housing which rests on a load-bearing surface and a load cell which is fixed within housing and transmits the load force carried by strut to housing and thence to the load-bearing surface. The strut passes through an aperture in housing to bear against load cell which is in the central cavity of the housing. The strut is able to move towards load cell, but is substantially restricted from moving away from the load cell, and preferably is able to have some rotational movement relative to base. The load-bearing feet overcome the bulkiness and expensiveness of prior art weighing systems and are portable, inexpensive and accurate in use.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: September 1, 1998
    Assignee: Tru-Test Limited
    Inventor: Brian Frederick Boult
  • Patent number: 5763838
    Abstract: The disclosed apparatus weighs a grown crystal that is being pulled from melt thereof. The lower end of a rope of known weight is connected to the crystal, while the upper end of the rope is connected to the drum of a rope-winding unit. The rope-winding unit includes a driver coupled to the drum so as to rotate the drum and wind the rope thereon, and the weight of the rope-winding unit including the drum and driver is known. At least one weight sensor is coupled to the rope-winding unit so as to measure the magnitude of gravity acting on the rope-winding unit. Whereby, the weight of the grown crystal is determined by subtracting the sum of the known weights of the rope and the rope-winding unit from the measured magnitude of the gravity acting on the rope-winding unit.
    Type: Grant
    Filed: November 23, 1996
    Date of Patent: June 9, 1998
    Assignee: Ohkura Electric Co., Ltd.
    Inventors: Toshiaki Morimura, Yoshitaka Noguchi, Satoshi Oka
  • Patent number: 5719356
    Abstract: An improvement is provided in the mounting means for a weigh scale including a fixed peripheral frame base structure (the "base"), a central, movable, load-supporting platform (the "platform"), and interconnections between the platform with the base to allow limited vertical motion of the platform. The interconnecting means comprises at least four torque-transmitting tubular arms which are mounted and arranged around the perimeter of the platform, with one portion of each torque-transmitting tubular arm being supported with respect to the base, and another portion of each torque-transmitting tubular arm being supported with respect to the platform. The improved mounting includes a butterfly block at each end of each such torque-transmitting tubular arms. The butterfly block includes two parallel upper vertical guideways and two parallel lower vertical guideways.
    Type: Grant
    Filed: February 21, 1996
    Date of Patent: February 17, 1998
    Assignee: International Road Dynamics, Inc.
    Inventors: Dwaine Friesen, Terry Bergan
  • Patent number: 5703334
    Abstract: A load to be measured is transmitted to a load cell, such as a compression load cell, through a double piston, single cylinder load transmitter that has a pressure chamber between two pistons in the single cylinder. One piston bears against the load. The other piston bears against the load cell to form a floating link between the load and the load cell when a sufficient pressure is introduced into said pressure chamber to prevent unwanted, off-center load application force components from adversely affecting any measured results. Preferably, at least one axially outwardly facing end surface of the piston bearing against the load cell has a curved end surface area. A rocker pin with a pressure controllable variable length may be formed by making both axially outwardly facing end surfaces curved. Several load transmitters may be arranged in parallel to transmit larger loads into a load cell.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: December 30, 1997
    Assignee: HBM, Inc.
    Inventors: Thomas W. Hansson, Randall K. Hopkins
  • Patent number: 5670752
    Abstract: In a weighing conveyor, a driving roller includes an inner cylinder and an outer cylinder. The outer cylinder is rotatably supported on the inner cylinder. An endless belt is laid over the outer cylinder. An electric motor and a load cell are built in the inner cylinder. The motor drives the outer cylinder through a reduction gear mechanism.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: September 23, 1997
    Assignee: Ishida Co., Ltd.
    Inventor: Masayoshi Nakajima
  • Patent number: 5646376
    Abstract: A portable aircraft weighing scale, comprising:(a) a base having load cell mounting structures;(b) a plurality of shear beam load cells mounted to the base via the mounting structures;(c) a platform for supporting an aircraft wheel or wheel set; and(d) a mechanism for mounting the platform to the load cells.
    Type: Grant
    Filed: June 9, 1994
    Date of Patent: July 8, 1997
    Assignee: Intercomp Company
    Inventors: William Kroll, Mark Browne, Tom Bartsch, Randie Evenson
  • Patent number: 5616889
    Abstract: A summing bar suspension scale having a platform for supporting objects to be weighed, a frame, weighing bars, a weighing arm assembly, and a pair of summing bar assemblies. One of the summing bar assemblies is connected to one of the weighing bars and to the weighing arm assembly and the other summing bar assembly is connected to the other weighing bar. Strap assemblies are connected to a platform support assembly, the weighing bars and the frame and summing bar strap assemblies are connected to the summing bar assemblies so that the summing bar assemblies are rotated in response to rotation of the weighing bars by an object being disposed on the platform.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: April 1, 1997
    Inventor: John Paul
  • Patent number: 5600104
    Abstract: A load cell having a measurement beam and a pivotal support for either coupling a load to the beam or supporting opposite ends of the beam. In one embodiment, opposite ends of a beam are secured to the upper surface of a frame, and the load is applied to the upper surface of the beam at its mid-point through a load applying member and a sphere positioned between the load applying member and the beam. Bolts positioned symmetrically about the sphere pass loosely through the load applying member and are threaded into the beam. The bolts maintain the sphere in contact with the load applying member and beam while allowing relative angular movement between the beam and the load applying member. In another embodiment of load cell, opposite ends of a beam are supported on a frame through respective, generally spherical members, and the load is applied to the center of the beam.
    Type: Grant
    Filed: October 20, 1993
    Date of Patent: February 4, 1997
    Assignee: Structural Instrumentation, Inc.
    Inventors: Jerry L. McCauley, William J. Moon
  • Patent number: 5446248
    Abstract: A center-lock portable truck scale has an end positioning post (4) between sides at ends of a truck scale and a central positioning post (8) positioned centrally in truck-scale sections. Positioning rods (5 and 9), preferably bolts, form positioning bumpers at adjustable distances from the lock posts. Hinges (23, 29 and 49) are employed to connect sides of the scale bridge (11, 12) so that large truck scale decks may be foldable for easy transportation to the site of installation. Scale loading weight is carried on a vertical load-cell pillar (75) that rests pivotally on a load button (77) that is positional in a load-button indentation in a top surface of strain-gauge beams (80). The central positioning post and positioning bolts prevent excessive end-to-end movement while the end positioning posts prevent excessive side-to-side or twisting movement of a scale unit, thereby positioning scale weight directly on load cells (3) in jarring and temperature-change use-conditions for more accurate weighing.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: August 29, 1995
    Assignee: First-Weigh Manufacturing, Inc.
    Inventor: Thomas F. Strasser
  • Patent number: 5384437
    Abstract: A torque bar suspension scale having a platform for supporting objects to be weighed and a pair of torque bars with each torque bar being disposed at an opposite end of the platform. Strap assemblies are connected to the platform, the torque bars and a frame whereby the torque bars are rotated in response to a weight being disposed on the platform. Each strap assembly comprises a strap having a rectangularly shaped cross section.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: January 24, 1995
    Assignee: Adrian J. Paul Company
    Inventors: John Paul, Adrian J. Paul
  • Patent number: 5384438
    Abstract: A torque bar suspension scale having a platform for supporting objects to be weighed and a pair of torque bars with each torque bar being disposed at an opposite end of the platform. Strap assemblies are connected to the platform, the torque bars and a frame whereby the torque bars are rotated in response to a weight being disposed on the platform. Each strap assembly comprises a strap having a rectangularly shaped cross section.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: January 24, 1995
    Assignee: Adrian J. Paul Company
    Inventor: John Paul
  • Patent number: 5343000
    Abstract: A weighing apparatus employing dual load cells or dual load cell sets is provided with a hinged weigh frame attachment to transmit only vertical load to one load cell or set of load cells and prevent transmission of moments about the longitudinal axis. A ball and dual cup arrangement is connected between the weigh frame and the other load cell or set of load cells to transmit vertical load but prevent the transmission of moments about either the longitudinal or transverse axes of the load cell. Because of the decoupling arrangements, the weighing apparatus requires only longitudinal shift adjustment for only the load cell(s) connected to the hinge.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: August 30, 1994
    Assignee: Mettler-Toledo, Inc.
    Inventors: Neil C. Griffen, James F. Million
  • Patent number: 5308935
    Abstract: A torque bar suspension scale having a platform for supporting objects to be weighed and a pair of torque bars with each torque bar being disposed at an opposite end of the platform. Strap assemblies are connected to the platform, the torque bars and a frame whereby the torque bars are rotated in response to a weight being disposed on the platform. Each strap assembly comprises a strap having a rectangularly shaped cross section.
    Type: Grant
    Filed: March 17, 1993
    Date of Patent: May 3, 1994
    Assignee: Adrian J. Paul Company
    Inventors: John Paul, Adrian J. Paul
  • Patent number: 5258583
    Abstract: A multi-stage weighing apparatus having a primary force reducing torsion-bar assembly and a secondary force reducing means. The combination of the primary and secondary force reducers enabling the scale to measure the weight of very heavy objects while having relatively small overall dimensions.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: November 2, 1993
    Assignee: Adrian J. Paul Company
    Inventors: Duane J. Paul, John Paul
  • Patent number: 5230395
    Abstract: A torque bar suspension scale having a platform for supporting objects to be weighed and a pair of torque bars with each torque bar being disposed at an opposite end of the platform. Strap assemblies are connected to the platform, the torque bars and a frame whereby the torque bars are rotated in response to a weight being disposed on the platform. Each strap assembly comprises a strap having a rectangularly shaped cross section.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: July 27, 1993
    Assignee: Adrian J. Paul Co.
    Inventors: John Paul, Adrian J. Paul
  • Patent number: 5224561
    Abstract: Weighing of railway cars is accomplished by replacing a short section of fixed rail with a weigh-rail, and supporting the weigh-rail as well as sections of the fixed rail near the weigh-rail on an added foundation structure. The weigh-rail has a weigh-rail body for supporting the wheels of the railway car, and two dual shear beam load cells arranged transverse to the weigh-rail body. The weigh-rail is supported on the foundation structure solely by the four ends of the two dual shear beam load cells, and bumpers are arranged adjacent the ends of the load cells for maintaining the weigh-rail body aligned with the fixed rail ends. Bumpers are also arranged to prevent one end of the weigh-rail from flipping upwards when a railway car wheel enters the other end of the weigh-rail.
    Type: Grant
    Filed: April 7, 1992
    Date of Patent: July 6, 1993
    Assignee: Flintab AB
    Inventor: Nils G. Ahl
  • Patent number: 5205370
    Abstract: A torque bar suspension scale having a platform for supporting objects to be weighed and a pair of torque bars with each torque bar being disposed at an opposite end of the platform. Strap assemblies are connected to the platform, the torque bars and a frame whereby the torque bars are rotated in response to a weight being disposed on the platform. Each strap assembly comprises a strap having a rectangularly shaped cross section.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: April 27, 1993
    Assignee: Adrian J. Paul Co.
    Inventors: John Paul, Adrian J. Paul
  • Patent number: 5199519
    Abstract: A strain gauge element in which the compression forces applied by at least one of the pressure members are transmitted to a first surface of the strain gauge by a cross formed by two cylindrical rods, the contact between the strain gauge (or the said pressure member) and the cross being exerted on a generating line of one of the rods (or the other rod) of the cross, permitting the said pressure member to carry out a tilting movement about the said rod (or the other rod).The reactionary compression forces applied to a second surface of the strain gauge are applied either by at least one cross or by rods.
    Type: Grant
    Filed: November 5, 1991
    Date of Patent: April 6, 1993
    Assignee: U.S. Philips Corp.
    Inventors: Remy H. F. Polaert, Jean-Pierre Hazan
  • Patent number: 5183126
    Abstract: The weighing device has a bending beam (20,31,41) from which bending moment transmission means (35,36,42,43) extend laterally. Relatively rigid members (24,27,30,32) are coupled to the bending moment transmission means (35,36,42,43) by force transmission elements (13,37,38). Loads applied to the rigid members (24,27,30,32) are measured by a strain gauge (33) mounted on the bending beam (20,31,41). Each force transmission element (13,37,38) comprises a rectangular prismatic body of elastomeric material, such as natural rubber, which may have concave sides (15) to reduce shear forces in the body. Fixing studs (17) may be attached to plates (16) bonded to the upper and lower surfaces of the body. The material of the body is chosen to exhibit creep, hystersis and linearity characteristics approximating those of an ideal spring.
    Type: Grant
    Filed: September 19, 1991
    Date of Patent: February 2, 1993
    Inventor: Arthur Kellenbach
  • Patent number: 5174404
    Abstract: Mobile weighing device such as a device for mounting on a truck. Said device comprises a framework and a loadingframe which are flexible connected to each other by means of connecting elements being connected to said parts by means of universal joints. Said joints are integrated into power receiving members which are formed by or are forming part of said connecting elements so that said joints are positioned at a minimum distance from each other. The load indicator, present in said power receiving member is positioned outside the space between said two universal joints.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: December 29, 1992
    Assignee: NV Nuyts ORB
    Inventor: Henry Nuyts
  • Patent number: 5133420
    Abstract: A weighing scale having a load receiving platform which delivers forces to a force collecting lever system mounted on the scale base by means of self adjusting bearing members projecting downwardly from said platform and secured to said platform by assembly tabs which permit limited freedom of movement in the horizontal plane.
    Type: Grant
    Filed: December 11, 1990
    Date of Patent: July 28, 1992
    Assignee: Sunbeam Corporation
    Inventor: Rodney Smith
  • Patent number: 5094307
    Abstract: A weighing scale with two overlapping weighing beam arrangements hinged in the middle of the weighing scale by means of connecting rods with pivot bearings and pivots and connected to a ground plate at the extremes has a pendulum foot (19) at the ends of each weighing beam arrangement which can swivel in a foot groove on the ground plate (39). The ends of the weighing beam arrangements accommodate a pivot block arrangement with two opposed pivots (50, 51). Support in pivot bearings is located beneath the weighing beam arrangement. The pivot block arrangements and the pivot bearings are located in the centre with regard to the weighing beams and transmit the support forces from the center to the weighing beams.
    Type: Grant
    Filed: August 2, 1990
    Date of Patent: March 10, 1992
    Assignee: Seca GmbH
    Inventor: Walter Aschke
  • Patent number: 5038973
    Abstract: Vessel balance for bulk material having a tubular balance section for feed therethrough of bulk material. The balance is adapted during feed intervals of the bulk material to enable determination of the weight thereof. The section cooperates with a feed flap adjacent one of its ends to govern entry of the material into the section and has a closing member at an opposite end. The section and member are supported by at least two weight measuring elements carried by a fixed platform.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: August 13, 1991
    Assignee: Gebruder Buhler, AG
    Inventor: Bruno Gmur
  • Patent number: 4984644
    Abstract: A torque suspension weighing scale includes a weighbridge/animal crate, a main frame and torque suspension members all integrally combined by unique ball and seat retention assemblies fitted within keyhold formations formed in each of the subframe and weighing platform.
    Type: Grant
    Filed: June 28, 1989
    Date of Patent: January 15, 1991
    Assignee: Mid-America Scale, Inc.
    Inventor: Robert E. Skibinski
  • Patent number: 4926951
    Abstract: A weigh bed has a rectangular base frame, a rectangular weigh frame mounted above the base frame, a load cell beam mounted on each corner of the weigh frame and a ball connecting each load cell beam to the base frame. Three tie rods connected between the base frame and weigh frame limit horizontal movement of the weigh frame with respect to the base frame.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: May 22, 1990
    Assignee: SSI Medical Services, Inc.
    Inventors: Walter L. Carruth, Warren P. Jones, Richard B. Stacy
  • Patent number: 4881607
    Abstract: A platform scale with a load platform (7) for receiving articles to be weighed, wherein the load is transmitted to a force sensor by force-transmitting arms (5), and is supported at each of its four corners by a respective single-piece force-transmitting member (2) via a respective load-bearing column (8). Force-transmitting member (2) comprises a fixedly disposed anchoring member (22), a load-bearing member (12) guided for parallel movement with respect to the anchoring member (22) by link members (10, 17), and a lever member (14) suspended between anchoring member (22) and load-bearing member (12) by two thin strips (13, 15) whereby the fulcrum of the lever member is formed by a thin strip (13), and lever member (14) transmits a torque, corresponding to the load, to force-transmitting arm (5).
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: November 21, 1989
    Assignee: August Sauter GmbH
    Inventor: Konrad Backu
  • Patent number: 4880069
    Abstract: A low profile electronic bathroom scale includes a base having a pair of elongate rigid deformable members affixed thereto. The end portions of the deformable members are spaced from the base and define cantilevered beams having a plurality of strain gauges secured to the respective upper surfaces thereof. A rigid deck is secured to the ends of the deformable members by clips so that the weight of a person on the deck is transferred to the deformable members, causing the latter to deform, and imposing a strain on the strain gauges. The bridge circuit output signal is converted into a perceptive weight read-out.
    Type: Grant
    Filed: August 30, 1988
    Date of Patent: November 14, 1989
    Assignee: Weigh-Tronix, Inc.
    Inventor: Richard S. Bradley
  • Patent number: 4872523
    Abstract: A torque suspension weighing scale includes a subframe, a weighing platform, a torque suspension members all integrally combined by unique ball and seat retention assemblies fitted within keyhole formations formed in each of the subframe and weighing platform.
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: October 10, 1989
    Assignee: Mid-America Scale, Inc.
    Inventor: Robert E. Skibinski
  • Patent number: 4867259
    Abstract: A strain gauge assembly of the type having an elongate flexible member (12) with attached strain gauges (36, 38) has forces applied thereto at points (48, 50) spaced from its central neutral plane (52) by means including members mounted to a foot (10) and force receiving (14) members for non-sliding lateral movement relative thereto. In another embodiment strain gauges are attached to a flexible diaphragm (68) which is in communication with a fluid contained within a flexible sealed container (78) that is restrained against lateral movement by a hollow restraint member (62) therearound but which has a portion (80) protruding from a lower open end (66) thereof to receive a load to pressurize the fluid for flexing the diaphragm (68).
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: September 19, 1989
    Assignee: Fyrnetics, Inc.
    Inventor: Richard C. S. Yung
  • Patent number: 4848494
    Abstract: Disclosed is a platform balance with a weighing scale, with at least two levers (2) which are mounted via spring joints (3) on support points (5) fixed to the housing, with a force summation part (6) which is guided in parallel by an upper and lower guide rod (7) and with coupling elements (4) which connect the longer lever arm of the levers (2) to the force summation part (6) that the shorter lever arm of each lever (2) is connected by a coupling element (13) to a load receiver (14), that each load receiver (14) is guided in parallel by an upper and a lower guide rod (15) and that the weighing scale (18) is supported on the load receivers (14). As a result thereof, deformations of the weighing scale or of its carrier construction can no longer affect the levers (2) and their lever arm ratio. In an advantageous embodiment the parallel guide of a load receiver (14) and the support points ( 5) of the associated lever (2) form a component which can be derived e.g.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: July 18, 1989
    Assignee: Sartorius GmbH
    Inventors: Klaus Cornelius, Rainer Exner
  • Patent number: 4844192
    Abstract: This inventive scale consists of a frame (2), a platform (3) parallel and perpendicular to the frame (2), a load lifter (5) and a level mechanism consisting of at least one arm (1). The lever mechanism transmits the load from the platform (3) to the load lifter (5) and is connected to the frame (2), the platform (3) and the load lifter (5) by means of couplings (10, 13, and 15). The lever mechanism, consisting of at least one arm (1), has a flexible connector at each end and one in the middle (7, 8, and 9). The end connectors (7 and 9) are attached to the platform (3) and the load lifter (5) by means of pins (10 and 15), respectively. The middle connector (8) is attached to the frame (2) by means of two swivel couplings (13).
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: July 4, 1989
    Assignee: Wirth Gallo Messtechnik AG
    Inventor: Johannes Wirth
  • Patent number: 4832142
    Abstract: Electronic scale apparatus is provided wherein a force collecting lever system, disposed within a base, receives forces imposed upon a cover for that base from force communicating members disposed near peripheral locations on the cover. At each of the peripheral locations the cover is biasingly attached to the base to prevent instability of the cover or displacement thereof as a result of forces imposed on the cover. The forces imposed on the lever system by the force communicating members are collected, concentrated at a point and transmitted to a force collecting beam where the force is applied to a transducer beam having a transducer thereon where the precisely collected resultant force is measured.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: May 23, 1989
    Assignee: Measurement Specialties, Inc.
    Inventor: Damon Germanton
  • Patent number: 4821823
    Abstract: A torque suspension weighing scale includes a subframe, a weighing platform, an torque suspension members all integrally combined by unique ball and seat retention assemblies fitted within keyhole formations formed in each of the subframe and weighing platform.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: April 18, 1989
    Assignee: Mid-America Scale, Inc.
    Inventor: Robert E. Skibinski
  • Patent number: 4792005
    Abstract: A flexure assembly is provided for mounting a load-receiving platform to a fixed base, said base having associated therewith a force sensing device for coupling to said platform. The assembly comprises at least one flexure member including a stack of at least two flexible leaves. The stack is rigidly coupled along a first side thereof to said platform, and said stack is rigidly coupled along an opposite side thereof to said base, said stack being inclined from the vertical and being sufficiently rigid to support said platform from said base.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: December 20, 1988
    Assignee: The A. H. Emery Company
    Inventor: Detlef Olzog
  • Patent number: 4759416
    Abstract: The invention relates to a weighing element for a weighing apparatus, comprising an elongated plate-shaped ceramic bending element (1) provided with strain-gauge transducers, one end (2) of the bending element being secured to a frame (6) of the weighing element, the free other end being secured to a torque lead-in arm (10), said bending element being supported by the frame and by the arm at a distance a from said one end and said other end, respectively. In order to increase the accuracy of the weighing element it is proposed to make the frame and arm supports (8, 13) resilient in the longitudinal direction of the bending element.
    Type: Grant
    Filed: August 28, 1986
    Date of Patent: July 26, 1988
    Assignee: U.S. Philips Corporation
    Inventor: Fokke R. Voorhorst
  • Patent number: 4757867
    Abstract: A system for measuring weight of objects using a single load cell means which comprises a pair of structural means having at least four sides and four corners, with pairs of opposed sides being substantially equal in length, a tensioned member positioned at each of said four corners of the structural means and load cell means extending therebetween an generally centrally thereof which is maintained under a predetermined compressive force applied by the structural means.
    Type: Grant
    Filed: September 4, 1986
    Date of Patent: July 19, 1988
    Assignee: Mima Incorporated
    Inventors: Henry Rosenthal, Howard E. Kronhaus
  • Patent number: 4744428
    Abstract: A scale small enough and light enough to be carried in a person's pocket by virtue of the fact that most of its components are formed of lightweight molded plastic material. The fulcrum for the beam of the scale is provided by a pair of pointed, metal fulcrum posts adapted to cooperate with a pair of metal bearing inserts in the beam. A sliding weight which is movable along the beam has a metal insert to increase its weight and the metal insert is positioned in the plane of the fulcrum when the sliding weight is in its zero position.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: May 17, 1988
    Inventors: David G. Knotter, Donald R. Levin, Jody L. Numbers
  • Patent number: 4744254
    Abstract: A force measuring device of unitary design comprising a beam provided with force sensitive elements supported on a base plate by support elements at a closed distance, the support elements being housed in recesses provided at bottom surface of said beam and a top surface of said base plate. Since the support elements are integrated in said beam no separate support elements are necessary for supporting said force measuring device such that lateral forces are compensated.
    Type: Grant
    Filed: December 12, 1986
    Date of Patent: May 17, 1988
    Assignee: Pfister GmbH
    Inventor: Hans Barten
  • Patent number: 4733736
    Abstract: A load cell assembly for a vehicle scales and other weighing applications includes a load cell configured to weigh in tension and substantially eliminate sensitivity to transversely and obliquely directed forces includes upper and lower alignment assemblies. Each alignment assembly includes three members: an intermediate member having an upper and lower pair of aligned curved pivots disposed perpendicularly to one another and received within aligned, curved channels in adjacent upper and lower members. The lower member of the upper assembly supports the entire load cell assembly and the upper member of the lower assembly supports the scale platform. Extending between the upper member of the upper assembly and the lower member of the lower assembly is a load cell which is placed in tension to measure the load applied to the assembly.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: March 29, 1988
    Assignee: Holtgreven Scale and Electronics Corporation
    Inventors: Mark S. Holtgreven, Leonard T. Holtgreven
  • Patent number: 4703816
    Abstract: A mass-measuring and force-measuring device which comprises a frame, a load-bearing component guided at right angles and parallel, a pathless measuring system and means for transmitting the load to the measuring system, which possess a lever which is connected to the frame via a first plate having at least one joint and non-rotatably and non-displaceably mounted on the said lever, and is connected to the load-bearing component via a second non-rotatably and non-displaceably mounted plate having at least two joints.
    Type: Grant
    Filed: March 20, 1986
    Date of Patent: November 3, 1987
    Assignee: K-Tron Patent AG
    Inventor: Kaspar Saner
  • Patent number: 4700566
    Abstract: A device for dividing vector forces into their X- and/or Y- and Z-components comprising a main body having a flat upper surface inclined to the horizontal; a wedge having a bottom surface inclined to the horizontal engaging essentially friction-free the upper surface of the main body, and a flat horizontal upper surface; at least one first force measuring element acting in a direction of the wedge action and being provided in a fixed relationship to the main body; an upper element having a flat bottom side bearing essentially friction-free in horizontal directions on the horizontal upper surface of the wedge and receiving a vector force to be measured; and at least one second force measuring element each acting in the at least one of the X- and Y-direction, limiting any movement of the upper element and being arranged in fixed relationship to the main body.
    Type: Grant
    Filed: July 22, 1986
    Date of Patent: October 20, 1987
    Assignee: Pfister GmbH
    Inventor: Hans W. Hafner
  • Patent number: 4691794
    Abstract: A strain gauge assembly of the type having an elongate flexible member (12) with attached strain gauges (36, 38) has forces applied thereto at points (48, 50) spaced from its central neutral plane (52) by means including members mounted to a foot (10) and force receiving (14) members for non-sliding lateral movement relative thereto. In another embodiment strain gauges are attached to a flexible diaphragm (68) which is in communication with a fluid contained within a flexible sealed container (78) that is restrained against lateral movement by a hollow restraint member (62) therearound but which has a portion (80) protruding from a lower open end (66) thereof to receive a load to pressurize the fluid for flexing the diaphragm (68).
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: September 8, 1987
    Assignee: Fyrnetics, Inc.
    Inventors: Larry D. Larsen, Richard C. S. Yung, Wing K. Leung, Joseph E. Hogel