Patents by Inventor Kavithas Ponnampalam

Kavithas Ponnampalam 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).

  • Rotor end band
    Patent number: 9923434
    Abstract: An end band and method of forming an end band for a rotor. The end band includes a hollow cylindrical band, wherein at least a portion of the band has a grain flow in a direction parallel to the hoop stress of the band. The end band also includes at least a portion having a grain flow in a direction perpendicular to the hoop stress of the band.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: March 20, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Kavithas Ponnampalam, Jong-Yeong Yung, William Louis Wentland, Craig R. Legros, Kevin L Dickerson, Davis S. Behling
  • ROTOR END BAND
    Publication number: 20140360242
    Abstract: An end band and method of forming an end band for a rotor. The end band includes a hollow cylindrical band, wherein at least a portion of the band has a grain flow in a direction parallel to the hoop stress of the band. The end band also includes at least a portion having a grain flow in a direction perpendicular to the hoop stress of the band.
    Type: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Inventors: Kavithas Ponnampalam, Jong-Yeong Yung, William Louis Wentland, Craig R. Legros, Kevin L. Dickerson, Davis S. Behling
  • ROTOR END BAND
    Publication number: 20130221794
    Abstract: An end band and method of forming an end band for a rotor. The end band includes a hollow cylindrical band, wherein at least a portion of the band has a grain flow in a direction parallel to the hoop stress of the band. The end band also includes at least a portion having a grain flow in a direction perpendicular to the hoop stress of the band.
    Type: Application
    Filed: February 28, 2012
    Publication date: August 29, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Kavithas Ponnampalam, Jong-Yeong Yung, William Louis Wentland, Craig R. Legros, Kevin L. Dickerson, David S. Behling
  • Fastener with zoned, varying wave-form thread
    Patent number: 7914244
    Abstract: A threaded fastener includes a shank having a tip and a head configured for engagement by an associated driving tool. The fastener is configured for use with an associated threaded opening. The head is disposed on the shank opposite the tip. The shank has a helical thread formed thereon. The thread extends from about the tip to about the head and defines a plurality of zones. Each zone has a plurality of individual threads extending 360 degrees about the shank. A leading thread in each zone is formed with a wave-form profile having an amplitude that is greater than the amplitude of each prior leading thread. In one embodiment, threads other than the leading thread in each zone do not have an amplitude as great as their respective leading threads. A fastening assembly is also disclosed.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: March 29, 2011
    Assignee: Illinois Tool Works Inc.
    Inventors: John S. Bubulka, Joel M. Thomas, Kavithas Ponnampalam, Jeffrey L. Trzaskus, Kenneth R. Levey, Robert K. Dutzi
  • FASTENER WITH ZONED, VARYING WAVE-FORM THREAD
    Publication number: 20090092461
    Abstract: A threaded fastener includes a shank having a tip and a head configured for engagement by an associated driving tool. The fastener is configured for use with an associated threaded opening. The head is disposed on the shank opposite the tip. The shank has a helical thread formed thereon. The thread extends from about the tip to about the head and defines a plurality of zones. Each zone has a plurality of individual threads extending 360 degrees about the shank. A leading thread in each zone is formed with a wave-form profile having an amplitude that is greater than the amplitude of each prior leading thread. In one embodiment, threads other than the leading thread in each zone do not have an amplitude as great as their respective leading threads. A fastening assembly is also disclosed.
    Type: Application
    Filed: January 23, 2008
    Publication date: April 9, 2009
    Inventors: John S. Bubulka, Joel M. Thomas, Kavithas Ponnampalam, Jeffrey L. Trzaskus, Kenneth R. Levey, Robert K. Dutzi