Patents Assigned to Wirth, Gallo & Co.
  • Patent number: 4453608
    Abstract: A mass and force meter particularly suited for weighing large and bulky loads, for example vehicles, which, in spite of the large dimensions of the load support due to the nature of the load, has a small total height and in which possible unpredictable deformations of the frame do not influence the precision of the measurement, said mass and force meter having a frame, a load support directly supported by two brackets each of which is connected to the frame by means of two flat springs forming a parallel guiding device, a measuring system, springs compensating the main share of the load and an elastic transmission element transmitting to the measuring system the load-proportional remaining share of the load.
    Type: Grant
    Filed: July 1, 1982
    Date of Patent: June 12, 1984
    Assignee: Wirth Gallo & Co.
    Inventors: Johannes Wirth, Mario Gallo, Kaspar Saner
  • Patent number: 4343196
    Abstract: Mass and force meter with a body, a load support, a load cell, an intermediate body mounted between said body and said load support and supported by said body over a number of supporting points, said load support being supported by said intermediate body over the same number of loading points, whereby said supporting and loading points are mounted pairwise in the same horizontal plane, said intermediate body consisting of two rigid parts linked by two horizontal, flexible parts mounted one below the other, said supporting and loading points being anchored to said rigid parts, said loading points being shifted horizontally by the same amount and in the same direction from said supporting points, whereby at least one spring, the resilience of which is much greater than that of said flexible parts, has one of its ends fitted into one of said rigid parts, its other end being linked with said load cell which is linked to the other rigid part.
    Type: Grant
    Filed: September 9, 1980
    Date of Patent: August 10, 1982
    Assignee: Wirth, Gallo & Co.
    Inventors: Johannes Wirth, Mario Gallo
  • Patent number: 4300648
    Abstract: Mass and force meter with a frame, a load support guided parallely and vertically by parallel guiding means comprising at least two flat springs lying in two at least substantially parallel planes lying one above the other, with a rigid measuring system and a resilient transmission element transmitting only a part of the weight of the mass to be measured or of the force to be measured to the measuring system, said flat springs being fitted in said frame and said load support.
    Type: Grant
    Filed: August 21, 1979
    Date of Patent: November 17, 1981
    Assignee: Wirth, Gallo & Co.
    Inventors: Mario Gallo, Johannes Wirth
  • Patent number: 4285412
    Abstract: Scale protected against ingress of dust and water in which elements of the scale which are always present in any scale are combined with extremely simple additional mechanical means in order to achieve the desired protection, comprising a measuring system, a frame, at least one foot supporting said frame, a load support, guiding means for parallel and vertical guiding of said load support, at least one opening having an inner edge in said load support for said foot, an annular diaphragm mounted between said foot and said inner edge, said load support enclosing completely said measuring system, said frame and said guiding means.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: August 25, 1981
    Assignee: Wirth, Gallo & Co.
    Inventor: Johannes Wirth
  • Patent number: 4274501
    Abstract: Mass and force meter with a frame, a load support and a rigid measuring system, in which only a part of the weight of the mass to be measured or of the force to be measured is transmitted to the measuring system, an intermediate body mounted between the load support and the frame which comprises two rigid parts linked by at least one resilient part, the load support being connected to the intermediate body by means of a number of load connections, the intermediate body being supported by the frame by means of an equal number of supporting connections, said rigid parts carrying each a spring lying outside the plane of said flexible part, the ends of these springs being linked to the measuring system.
    Type: Grant
    Filed: November 28, 1979
    Date of Patent: June 23, 1981
    Assignee: Wirth, Gallo & Co.
    Inventors: Mario Gallo, Johannes Wirth
  • Patent number: 4270384
    Abstract: A mass and force meter locked over its measuring system and comprising a frame, a load support, and a force transmission channel with a load-dependent force transmission ratio and at least one swivel lever is provided, in which the combination of the non-linearity of the measuring system with that of other elements of the meter can be eliminated with a force transmission channel having a non-linear characteristic, such a channel having a smaller resilience than the known meters coupled with a better adaptability to meeting the requirements for the parameters determining the non-linearity to be eliminated and with easy adjustment of these parameters, the swivel lever being connected with at least one adjacent element of the force transmission channel by means of a link having one of its ends fitted to the swivel lever, the link being mounted at least partly outside the action line of the force transmitted and being at least zone-wise elastically bendable.
    Type: Grant
    Filed: December 15, 1978
    Date of Patent: June 2, 1981
    Assignee: Wirth, Gallo & Co.
    Inventors: Kaspar Saner, Johannes Wirth, Mario Gallo
  • Patent number: 4240289
    Abstract: A mass and force meter comprising, a frame, a load support connected to said frame; a measuring system comprising two dynamometers, a reference base and a force input; a load spring mounted between said frame and said load support, and a measuring spring mounted between said load support and said force input, said load spring being at least ten times stronger than said measuring spring, said load spring and said measuring spring eliminating partly or completely force-reducing lever systems in mass meters and allowing, if required, the linearization of non-linear characteristics of several components of the meter.
    Type: Grant
    Filed: December 14, 1978
    Date of Patent: December 23, 1980
    Assignee: Wirth Gallo & Co.
    Inventor: Kaspar Saner
  • Patent number: 4211295
    Abstract: Method and scale are designed for the manual or automatic weighing of objects of the same nominal weight by means of a scale locked over its measuring system, having a computing device for establishing the weight of the goods to be weighed from the digital output signals of mechanical-electrical converters, e.g. from pre-tensioned measuring strings loaded by the weight of said goods, in which if the load on the measuring system is lower or higher than predetermined limits of the load corresponding to said nominal weight, an electromagnetically generated force acts upon the load support of the scale and prevents the overshooting of said pre-determined load limits.
    Type: Grant
    Filed: July 10, 1978
    Date of Patent: July 8, 1980
    Assignee: Wirth, Gallo & Co.
    Inventor: Mario Gallo
  • Patent number: 4171026
    Abstract: Scale with a computing device and a digital display, in particular for commercial applications, said scale having logical and computing means for selection of one measuring range out of at least two measuring ranges in function of the weight of the goods on its platform, the smallest display units of each range being at least in a ratio 1:2, and further logical and computing means for selection in function of the weight of the higest load that may be displayed.
    Type: Grant
    Filed: January 23, 1978
    Date of Patent: October 16, 1979
    Assignee: Wirth, Gallo & Co.
    Inventors: Mario Gallo, Johannes Wirth
  • Patent number: 4163386
    Abstract: A mass and force meter with a frame, a load-support and a measuring system, wherein the mass or force to be measured acts indirectly on the tension of two transversally vibrating, pre-loaded strings excited by electronic means, so that the resultant frequency changes serve for calculating the magnitude of said mass or force in a computing device. Both strings, a first transmission element for the transmission of a pre-loading force and a second transmission element for the transmission of a force depending on the load to be measured are fixed to a force distributor.
    Type: Grant
    Filed: October 21, 1977
    Date of Patent: August 7, 1979
    Assignee: Wirth, Gallo & Co.
    Inventors: Mario Gallo, Johannes Wirth
  • Patent number: 4144943
    Abstract: A scale with a digital computing device and a digital display, in particular for weighing bulk goods, in which the weighing result is determined as a mean value over a measuring cycle, comprising means for assessing the difference between the results of two consecutive measuring cycles, means for comparing this difference with a pre-determined value and means for controlling the length of the measuring cycles in function of this comparison.
    Type: Grant
    Filed: August 30, 1977
    Date of Patent: March 20, 1979
    Assignee: Wirth, Gallo & Co.
    Inventor: Mario Gallo
  • Patent number: 4088198
    Abstract: The invention concerns a balance provided with a load support, load compensating means and a lever system mounted between the load support and the load compensating means. The lever system comprises four equally long and identically designed three-knife load levers connected with the load compensating means by at least one intermediate lever, each of the four load levers being allocated to one out of four equally designed supporting points of a knife bearing body of the same intermediate lever.
    Type: Grant
    Filed: June 15, 1976
    Date of Patent: May 9, 1978
    Assignee: Wirth, Gallo & Co.
    Inventor: Armin Wirth
  • Patent number: 4088014
    Abstract: A mass and force meter comprising a frame, a load support, a digital evaluation and display device and two electrically-excited, transversely-vibrating, pre-tensioned strings each having one end fixed to the frame. The other ends of the strings are connected to a force distributor, and first and second transmission elements are provided for transmitting to the force distributor a pre-tensioning force and a force which depends on the load to be measured. One end of each of the transmission elements is fixed to the force distributor and the other ends are connected to the respective pre-tensioning and load forces. A guide member having one end connected to the frame and the other end connected to the force distributor acts together with the strings to guide the force distributor in a statically defined manner relative to the frame with respect to the pre-tensioning force and the force established by the load to be measured.
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: May 9, 1978
    Assignee: Wirth, Gallo & Co.
    Inventors: Armin Wirth, Johannes Wirth, Mario Gallo
  • Patent number: 4043190
    Abstract: Mass and force meter with a frame, a load-support and a measuring system, wherein the mass or force to be measured acts indirectly on the tension of two transversally vibrating, pre-loaded strings excited by electronic means, so that the resultant frequency changes serve for calculating the magnitude of said mass or force in a computing device, both strings, a first transmission element for the transmission of a pre-loading force and a second transmission element for the transmission of a force depending on the load to be measured being fixed to a force distributor guided in a statically determined way relatively to the frame by means of the two strings and of at least one guide with respect to the pre-loading force and to the force depending on the load to be measured. The force distributor comprises three parts forming a triangle, both strings, the guide and both transmission elements being fastened to the corners of the force distributor.
    Type: Grant
    Filed: May 28, 1976
    Date of Patent: August 23, 1977
    Assignee: Wirth, Gallo & Co.
    Inventor: Mario Gallo
  • Patent number: D274795
    Type: Grant
    Filed: March 12, 1982
    Date of Patent: July 24, 1984
    Assignee: Wirth, Gallo & Co.
    Inventor: Johannes Wirth