Patents by Inventor Beat Ludi

Beat Ludi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8294045
    Abstract: A balance (100) has a balance housing (200), a balance pan (300), a weighing compartment (310) that contains the balance pan, a draft shield (400) with a fixed rear wall (210), the draft shield enclosing the weighing compartment, a system of balance electronics (500), a weighing cell (600) arranged below the weighing pan, and a weighing cell compartment (270) that encases the weighing cell. The weighing cell compartment is atmospherically connected by way of a hollow space (240) to the upper third of the weighing compartment. The balance electronics are arranged at the rear wall outside of the weighing compartment.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: October 23, 2012
    Assignee: Mettler-Toledo AG
    Inventors: Paul Lüchinger, Beat Lüdi
  • Publication number: 20100230178
    Abstract: A balance (100) has a balance housing (200), a balance pan (300), a weighing compartment (310) that contains the balance pan, a draft shield (400) with a fixed rear wall (210), the draft shield enclosing the weighing compartment, a system of balance electronics (500), a weighing cell (600) arranged below the weighing pan, and a weighing cell compartment (270) that encases the weighing cell. The weighing cell compartment is atmospherically connected by way of a hollow space (240) to the upper third of the weighing compartment. The balance electronics are arranged at the rear wall outside of the weighing compartment.
    Type: Application
    Filed: March 15, 2010
    Publication date: September 16, 2010
    Applicant: Mettler-Toledo AG
    Inventors: Paul Lüchinger, Beat Lüdi
  • Patent number: 7012198
    Abstract: A balance includes a weighing cell with a vertically movable load receiver, a weighing pan to receive a weighing load, and a support element to couple the weighing pan to the vertically movable load receiver of the weighing cell. A cantilever arm with a seat for at least one calibration weight is solidly connected to the support element. The balance has a coupling arrangement that constrains the support element with low-friction mobility to the load receiver at three points forming a triangle in a plane that extends orthogonal to the symmetry plane of the weighing cell, wherein the triangle is symmetric to the symmetry plane of the weighing cell. Under the coupling arrangement, the support element is solidly supported on the load receiver in the direction in which the weighing load is acting.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: March 14, 2006
    Assignee: Mettler-Toledo GmbH
    Inventors: Beat Lüdi, Eduard Fringeli, Paul Lüchinger
  • Publication number: 20030188897
    Abstract: A balance includes a weighing cell with a vertically movable load receiver, a weighing pan to receive a weighing load, and a support element to couple the weighing pan to the vertically movable load receiver of the weighing cell. A cantilever arm with a seat for at least one calibration weight is solidly connected to the support element. The balance has a coupling arrangement that constrains the support element with low-friction mobility to the load receiver at three points forming a triangle in a plane that extends orthogonal to the symmetry plane of the weighing cell, wherein the triangle is symmetric to the symmetry plane of the weighing cell. Under the coupling arrangement, the support element is solidly supported on the load receiver in the direction in which the weighing load is acting.
    Type: Application
    Filed: April 2, 2003
    Publication date: October 9, 2003
    Applicant: Mettler-Toledo GmbH
    Inventors: Beat Ludi, Eduard Fringeli, Paul Luchinger
  • Patent number: 5604334
    Abstract: A precision balance of the type having a short-stroke measuring system includes a load receptor connected to the measuring system by means of a hanger. The load receptor has the shape of a yoke and extends around the hanger. The yoke-shaped load receptor rests on the ends of two arms of a receiving element, wherein the arms are attached to the bottom of the hanger and elastically prestressed to press against the hanger. The yoke-shaped load receptor is held at the upper part of the hanger in a manner allowing guided sideways movement of the load receptor.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: February 18, 1997
    Assignee: Mettler-Toledo AG
    Inventors: Paul Luchinger, Beat Ludi