Patents by Inventor Denis Alff

Denis Alff 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: 5640087
    Abstract: A device for detection of the speed of rotation of a rolling bearing which has an encoder element mounted on the rotating part of the bearing and a sensor unit consisting of a sensor holder attached to a support mounted in contact with a nonrotating part of the bearing. The sensor unit is mounted on an elastic member for positioning with respect to the encoder element and may be adjusted with respect to a removable immobilization component of the sensor unit in contact with the support.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: June 17, 1997
    Assignee: The Torrington Company
    Inventor: Denis Alff
  • Patent number: 5622437
    Abstract: The bearing has a movable ring and a fixed ring, separated from the movable ring by rolling elements, and is axially restrained by an axial stop member. A support member adapted for mounting of the sensor is positioned between the fixed ring and the axial stop member. Elastic means on the support member biases the support member away from the axial stop member to maintain a constant gap between the coding element and the sensor.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: April 22, 1997
    Assignee: The Torrington Company
    Inventor: Denis Alff
  • Patent number: 5594334
    Abstract: A bearing with integrated data sensor has a stationary bearing ring, a rotatable bearing ring, and rolling elements in contact with the bearing rings. An encoder is mounted on the rotatable bearing ring, and a sealing gasket is mounted on the stationary bearing ring. A sleeve for protection of a sensor cable is integrally connected to the sealing gasket and has a groove for housing a sensor means which is connected to the sensor cable. The sleeve has a wall of its extremity which is substantially perpendicular to an external side of the sealing gasket through which the sensor cable exits such that it is tangential to said external side of the sealing gasket.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: January 14, 1997
    Assignee: The Torrington Company
    Inventors: Claude Sonnerat, Denis Alff, Christian Hajzler
  • Patent number: 5451869
    Abstract: A stationary bearing ring, a rotatable bearing ring, and a sensor support having a slide are provided. The sensor support is axially retained in engagement with the stationary bearing ring, and a sensor is slidably mounted in the slide of the sensor support. The sensor is biased into contact with the sensor support and is radially retained in the slide. An encoding element is carried by the rotatable bearing ring and is rotatable in front of the sensor. Various embodiments are disclosed.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: September 19, 1995
    Assignee: The Torrington Company
    Inventor: Denis Alff
  • Patent number: 5214722
    Abstract: An antifriction bearing assembly comprises a stationary outer race and a rotatable inner race with two annular rows of rolling elements between the races. A sensor assembly is mounted in the outer race so as to position a sensor between the races and the two rows of rolling elements, and an encoder is mounted on the inner race between the rows of rolling elements. Several sensor assembly and encoder configurations are included.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: May 25, 1993
    Assignee: The Torrington Company
    Inventors: Bradley D. Faye, James A. Hilby, Denis Alff, Christian Hajzler
  • Patent number: 5195831
    Abstract: An antifriction bearing assembly comprises a stationary outer race and a rotatable inner race with two annular rows of rolling elements between the races. A sensor assembly is mounted in the outer race so as to position a sensor between the races and the two rows of rolling elements, and an encoder is mounted on the inner race between the rows of rolling elements. Several sensor assembly and encoder configurations are included.
    Type: Grant
    Filed: February 13, 1992
    Date of Patent: March 23, 1993
    Assignee: The Torrington Company
    Inventors: Bradley D. Faye, James A. Hilby, Denis Alff, Christian Hajzler
  • Patent number: 5192138
    Abstract: An antifriction bearing assembly comprises a stationary outer race and a rotatable inner race with two annular rows of rolling elements between the races. A sensor assembly is mounted in the outer race so as to position a sensor between the races and the two rows of rolling elements, and an encoder is mounted on the inner race between the rows of rolling elements. Several sensor assembly and encoder configurations are included.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: March 9, 1993
    Assignee: The Torrington Company
    Inventors: Bradley D. Faye, James A. Hilby, Denis Alff, Christian Hajzler
  • Patent number: 5143458
    Abstract: An antifriction bearing for mounting in a housing bore. The antifriction bearing has a groove in one of the peripheral surfaces of the outer race, an annular encoder rotatable with the inner race, a sensor support including an arcuate band having an axially extending lip which matingly engages the groove in the outer race and a sensor removably attached to the sensor support.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: September 1, 1992
    Assignee: The Torrington Company
    Inventors: Denis Alff, Christian Hajzler
  • Patent number: 5129743
    Abstract: An antifriction bearing assembly comprises a stationary outer race and a rotatable inner race with two annular rows of rolling elements between the races. A sensor assembly is mounted in the outer race so as to position a sensor between the races and the two rows of rolling elements, and an encoder is mounted on the inner race between the rows of rolling elements. Several sensor assembly and encoder configurations are included.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: July 14, 1992
    Assignee: The Torrington Company
    Inventors: Bradley D. Faye, James A. Hilby, Denis Alff, Christian Hajzler
  • Patent number: 5127747
    Abstract: A bearing assembly comprises an outer race with an outwardly projecting flange and an inner race with a similar outwardly projecting flange. A sensor assembly is mounted on the flange of the stationary race, and an encoder is mounted on the flange of the rotating race. Several sensor assembly and encoder configurations are included.
    Type: Grant
    Filed: October 2, 1991
    Date of Patent: July 7, 1992
    Assignee: The Torrington Company
    Inventors: James A. Hilby, Denis Alff, Christian Hajzler
  • Patent number: 5123755
    Abstract: An antifriction bearing assembly comprises a stationary outer race and a rotatable inner race with two annular rows of rolling elements between the races. A sensor assembly is mounted in the outer race so as to position a sensor between the races and the two rows of rolling elements, and an encoder is mounted on the inner race between the rows of rolling elements. Several sensor assembly and encoder configurations are included.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: June 23, 1992
    Assignee: The Torrington Company
    Inventors: Bradley D. Faye, James A. Hilby, Denis Alff, Christian Hajzler
  • Patent number: 5120588
    Abstract: A magnetic encoder ring formed of a toothed annular metal disk with a concentric thermoplastic ring cast around the toothed annular metal disk.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: June 9, 1992
    Assignee: Ingersoll-Rand Company
    Inventors: Denis Alff, Christian Hajzler
  • Patent number: 5080500
    Abstract: A bearing assembly comprises an outer race with an outwardly projecting flange and an inner race with a similar outwardly projecting flange. A sensor assembly is mounted on the flange of the stationary race, and an encoder is mounted on the flange of the rotating race. Several sensor assembly and encoder configurations are included.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: January 14, 1992
    Assignee: The Torrington Company
    Inventors: James A. Hilby, Denis Alff, Christian Hajzler
  • Patent number: 5046867
    Abstract: A bearing assembly comprises an outer race with an outwardly projecting flange and an inner race with a similar outwardly projecting flange. A sensor assembly is mounted on the flange of the stationary race, and an encoder is mounted on the flange of the rotating race. Several sensor assembly and encoder configurations are included.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: September 10, 1991
    Assignee: The Torrington Company
    Inventors: James A. Hilby, Denis Alff, Christian Hajzler
  • Patent number: 4998084
    Abstract: A multipolar magnetic ring is fomred by joining together two rings having the same geometry and magnetic characteristics. The coaxial rings have circumferentially spaced apart teeth which form identical magnetic poles. The magnetic poles of each ring are embedded into the spaces separating the magnetic poles of the other ring. The magnetic poles of each ring have the opposite polarity to the polarity of the adjacent poles of the other ring.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: March 5, 1991
    Assignee: The Torrington Company
    Inventor: Denis Alff
  • Patent number: 4960333
    Abstract: An antifriction bearing assembly comprises a stationary outer race and a rotatable inner race with two annular rows of rolling elements between the races. A sensor assembly is mounted in the outer race so as to position a sensor between the races and the two rows of rolling elements, and an encoder is mounted on the inner race between the rows of rolling elements. Several sensor assembly and encoder configurations are included.
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: October 2, 1990
    Assignee: The Torrington Company
    Inventors: Bradley D. Faye, James A. Hilby, Denis Alff, Christian Hajzler
  • Patent number: 4948277
    Abstract: An encoder is mounted on a seal of a bearing having a fixed ring and a radially spaced rotating ring. The encoder ring has circumferentially separated teeth on one of its radial surfaces which embed into an elastomer portion of the seal.
    Type: Grant
    Filed: December 13, 1989
    Date of Patent: August 14, 1990
    Assignee: The Torrington Company
    Inventor: Denis Alff