Patents by Inventor Reto Zwahlen

Reto Zwahlen 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: 10654139
    Abstract: A displaceable carriage (10) and a linear guide for guiding the carriage, which includes a first guide path slideway (13, 31) and a second guide path slideway (32). To form the first slideway (13, 31), the carriage (10) includes at least one pocket (13), which slides along the first guide path part (31) and can hold lubricant under pressure to create a relieving force on the carriage (10). The second guide path part (32) includes an island-shaped surface to create a frictional force on the carriage (10). A pressure medium held in the at least one pocket (13, 14, 15) creates the relieving force, whereby the first slideway (13, 31) relieves the load on the second slideway (11a, 12a, 12b, 32).
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: May 19, 2020
    Assignee: FRITZ STUDER AG
    Inventors: Adrian Aeschlimann, Andreas Senn, Reto Zwahlen
  • Patent number: 9568298
    Abstract: The present disclosure relates to a machine tool, such as a grinding machine, and to a method for measuring a workpiece in a machine tool. The machine tool may comprise a workpiece mount (14), a tool unit (28), a measuring device (48) and a control device (56) that is connectable to the measuring device (48) and the tool unit (28), wherein the measuring device (48) is received at the tool unit (28) and comprises at least one toggle measurement head (66; 68), wherein the at least one toggle measurement head (66; 68) is received at a support piece (80) that provides a plurality of defined predetermined locations for the at least one toggle measurement head (66; 68), and wherein the control device (56) is arranged to detect signals that are triggered by the at least one toggle measurement head (66; 68) when touching a workpiece (96), and to determine on the basis of an actual location of the tool unit (28) an actual position of the at least one toggle measurement head (66; 68).
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: February 14, 2017
    Assignee: FRITZ STUDER AG
    Inventors: Andreas Senn, Walter Fabris, Reto Zwahlen, Fred Gaegauf
  • Publication number: 20150233693
    Abstract: The present disclosure relates to a machine tool, such as a grinding machine, and to a method for measuring a workpiece in a machine tool. The machine tool may comprise a workpiece mount (14), a tool unit (28), a measuring device (48) and a control device (56) that is connectable to the measuring device (48) and the tool unit (28), wherein the measuring device (48) is received at the tool unit (28) and comprises at least one toggle measurement head (66; 68), wherein the at least one toggle measurement head (66; 68) is received at a support piece (80) that provides a plurality of defined predetermined locations for the at least one toggle measurement head (66; 68), and wherein the control device (56) is arranged to detect signals that are triggered by the at least one toggle measurement head (66; 68) when touching a workpiece (96), and to determine on the basis of an actual location of the tool unit (28) an actual position of the at least one toggle measurement head (66; 68).
    Type: Application
    Filed: May 5, 2015
    Publication date: August 20, 2015
    Inventors: Andreas SENN, Walter FABRIS, Reto ZWAHLEN, Fred GAEGAUF
  • Publication number: 20120190275
    Abstract: A displaceable carriage (10) and a linear guide for guiding the carriage, which includes a first guide path slideway (13, 31) and a second guide path slideway (32). To form the first slideway (13, 31), the carriage (10) includes at least one pocket (13), which slides along the first guide path part (31) and can hold lubricant under pressure to create a relieving force on the carriage (10). The second guide path part (32) includes an island-shaped surface to create a frictional force on the carriage (10). A pressure medium held in the at least one pocket (13, 14, 15) creates the relieving force, whereby the first slideway (13, 31) relieves the load on the second slideway (11a, 12a, 12b, 32).
    Type: Application
    Filed: January 18, 2012
    Publication date: July 26, 2012
    Inventors: Adrian AESCHLIMANN, Andreas SENN, Reto ZWAHLEN
  • Patent number: 7573161
    Abstract: The positioning device includes at least one displaceable carriage, liquid slide bearings on which the carriage is displaceable, and a carriage drive. The latter includes a first linear motor including a first primary part and a first secondary part that is opposite thereto and located in a first plane, and a second linear motor including a second primary part and a second secondary part that is opposite thereto and located in a second plane. The two linear motors are arranged in inclined positions such that the two planes are different and form an intersecting angle.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: August 11, 2009
    Assignee: Fritz Studer AG
    Inventors: Adrian Aeschlimann, Reto Zwahlen
  • Publication number: 20060119191
    Abstract: The positioning device comprises at least one displaceable carriage (10), liquid slide bearings (12a, 16a; 12b, 16b) on which the carriage is displaceable, and a carriage drive. The latter comprises a first linear motor comprising a first primary part (20a) and a first secondary part (21a) that is opposite thereto and located in a first plane (19a), and a second linear motor comprising a second primary part (20b) and a second secondary part (21b) that is opposite thereto and located in a second plane (19b). The two linear motors are arranged in inclined positions such that the two planes are different and form an intersecting angle.
    Type: Application
    Filed: December 7, 2005
    Publication date: June 8, 2006
    Inventors: Adrian Aeschlimann, Reto Zwahlen