Patents by Inventor Whitney B. Kroetz

Whitney B. Kroetz 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: 9443752
    Abstract: Embodiments of the present invention relates to high temperature anti-droop end effectors for transferring semiconductor substrates. One embodiment of the present invention provides an end effector for using with a substrate handler. The end effector comprises a free end having a substrate supporting plane configured to support a substrate and positioned that substrate at a first angle relative to a horizontal plane. The end effector comprises a fixed end configured to be mounted to the substrate handler, wherein the end effector is mounted to the substrate handler at a position that the substrate supporting plane is at a second angle relative to the horizontal plane when no substrate is disposed on the free end, and the first angle is different from the second angle.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: September 13, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Jeffrey A. Brodine, Domingo Guerra, Whitney B. Kroetz
  • Patent number: 8061232
    Abstract: The present invention provides methods, apparatus, and systems for a wrist assembly including a housing having a cap and a bottom, at least one pivot at least partially enclosed in the housing and adapted to be coupled to a robot arm, and a belt coupled to the pivot and adapted to rotate the pivot about a bearing. The bottom of the housing is adapted to reflect heat away from the at least one pivot and the bearing.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: November 22, 2011
    Assignee: Applied Materials, Inc.
    Inventors: Whitney B. Kroetz, Damon K. Cox, Jeffrey A. Brodine, Domingo J. Guerra
  • Publication number: 20080219815
    Abstract: Embodiments of the present invention relates to high temperature anti-droop end effectors for transferring semiconductor substrates. One embodiment of the present invention provides an end effector for using with a substrate handler. The end effector comprises a free end having a substrate supporting plane configured to support a substrate and positioned that substrate at a first angle relative to a horizontal plane. The end effector comprises a fixed end configured to be mounted to the substrate handler, wherein the end effector is mounted to the substrate handler at a position that the substrate supporting plane is at a second angle relative to the horizontal plane when no substrate is disposed on the free end, and the first angle is different from the second angle.
    Type: Application
    Filed: March 7, 2008
    Publication date: September 11, 2008
    Inventors: JEFFREY A. BRODINE, DOMINGO GUERRA, WHITNEY B. KROETZ
  • Patent number: 5206555
    Abstract: A disk drive actuator is described including automatic eddy-current braking capability, enhanced by simple modifications of coil-mount structure, such as split damping ring and spaced-rib array.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: April 27, 1993
    Assignee: Unisys Corp.
    Inventors: Frank I. Morris, Whitney B. Kroetz
  • Patent number: 5118976
    Abstract: A disk drive actuator includes automatic eddy-current braking capability, enhanced by simple modifications of coil-mount structure, such as a split damping ring and spaced-rib array to produce intentional eddy current drag at unacceptably high actuation speeds, e.g., above 75 ips.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: June 2, 1992
    Assignee: Unisys Corp. (Formerly Burroughs Corp.)
    Inventors: Frank I. Morris, Whitney B. Kroetz
  • Patent number: 5084640
    Abstract: A disk drive actuator includes automatic eddy-current braking capability, enhanced by simple modifications of coil-mount structure, such as a split damping ring DR and spaced-rib array DR-R.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: January 28, 1992
    Assignee: Unisys Corporation
    Inventors: Frank I. Morris, Whitney B. Kroetz
  • Patent number: 4827162
    Abstract: A disk drive actuator including automatic eddy-current braking capability, enhanced by simple modifications of coil-mount structure, such as split damping ring DR and spaced-rib array, this array shown for example in FIG. 12 (see DR-R).
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: May 2, 1989
    Assignee: Unisys Corp.
    Inventors: Frank I. Morris, Whitney B. Kroetz
  • Patent number: 4825984
    Abstract: A voice-coil linear actuator is embodied wherein the coil-driving structure is coupled to the driven structure (carriage) via a visco-elastic couple member (e.g., elastomeric bonding tape) that changes from an efficient motion-transmitter, at "operating" coil-generated vibration frequencies, to a poor motion-transmitter/good isolator (mechanical filter) at high frequencies, corresponding to resonant or other deleterious vibration.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: May 2, 1989
    Assignee: Unisys Corp.
    Inventors: Frank I. Morris, Whitney B. Kroetz