Patents by Inventor Christian de Graffenried

Christian de Graffenried 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).

  • Publication number: 20240093987
    Abstract: A method of calibrating a coordinate measuring machine in which the immutable parameters of the articulated probe head are determine and stored at factory, while the connection parameters and other parameters dependent on the configuration of the system are determined in-situ, with a calibration artifact. The process builds a mathematical model that is the composition of an immutable factory-determined model with the in-situ model. The immutable model can be stored in a non-volatile memory physically provided in the articulated head. The method can fall back to a correction look up table for certain selected orientations of the probe where improved accuracy is needed.
    Type: Application
    Filed: September 15, 2023
    Publication date: March 21, 2024
    Applicant: TESA SÀRL
    Inventors: Beat AEBISCHER, Shiyao BERGAMASCHINI, Christian DE GRAFFENRIED, Julien CHARDONNENS, Davide MANETTI, Sepide AZHDARI
  • Publication number: 20200040943
    Abstract: One aspect relates to a rolling element for a ball bearing wherein the rolling element has: (i) a Young modulus E in the range up to and including 100 GPa; and (ii) a yield strength Rp0.2 in the range up to and including 1800 MPa, or wherein the rolling element has at least an alloy of nickel (Ni) and titanium (Ti), wherein the weight ratio of Ni:Ti in the alloy is in the range of from 57:43 to 50:50. One aspect is a rolling bearing with: a. at least an outer ring; b. at least an inner ring, wherein a raceway is defined by the arrangement of the outer ring and the inner ring; and c. at least three rolling elements wherein the rolling elements are arranged in the raceway, wherein at least one rolling element comprises at least an alloy as mentioned above.
    Type: Application
    Filed: October 14, 2019
    Publication date: February 6, 2020
    Applicant: Heraeus Deutschland GmbH & Co. KG
    Inventor: Christian de Graffenried
  • Publication number: 20180163780
    Abstract: One aspect relates to a rolling element for a ball bearing wherein the rolling element has: (i) a Young modulus E in the range up to and including 100 GPa; and (ii) a yield strength Rp0.2 in the range up to and including 1800 MPa, or wherein the rolling element has at least an alloy of nickel (Ni) and titanium (Ti), wherein the weight ratio of Ni:Ti in the alloy is in the range of from 57:43 to 50:50. One aspect is a rolling bearing with: a. at least an outer ring; b. at least an inner ring, wherein a raceway is defined by the arrangement of the outer ring and the inner ring; and c. at least three rolling elements wherein the rolling elements are arranged in the raceway, wherein at least one rolling element comprises at least an alloy as mentioned above.
    Type: Application
    Filed: June 1, 2016
    Publication date: June 14, 2018
    Applicant: Heraeus Deutschland GmbH & Co. KG
    Inventor: Christian de Graffenried
  • Patent number: 5581415
    Abstract: The invention relates to a device for inserting optical and mechanical components into mounting sleeves. The components are introduced upward from below into the mounting sleeve through a lead-through opening having movable locking elements. Although the locking elements allow the insertion of the components, they prevent the locking elements from leaving the mounting sleeve. The mounting sleeve is thus successively filled with insert parts. This type of insertion to a large extent counteracts the generation of dirt particles, in particular between the insert parts, and is outstandingly suitable for automation.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: December 3, 1996
    Assignee: Leica AG
    Inventor: Christian de Graffenried