Patents by Inventor Kalika R. Samant

Kalika R. Samant 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).

  • Moisture-stable flexible structural adhesive strand
    Patent number: 5470656
    Abstract: This invention is a moisture-stable, flexible, structural adhesive strand which is suitable for use in the manufacture of an elongated pile article. The strand of this invention is comprised of a core of reinforcing multifilaments and a sheath of moisture-sensitive thermoplastic resin. The cross-sectional area ratio of reinforcing filaments to thermoplastic resin is in the range of about 0.04 to less than 0.3.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: November 28, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Jeffrey L. Kennard, George K. Kodokian, Peter Popper, Kalika R. Samant
  • Method for heating crimped fibers and product thereof
    Patent number: 5242465
    Abstract: A method of producing crimped tow by continuously feeding a tow against an adjustable counter pressure means; the tow is maintained at an average predetermined thickness and steam enters the chamber and is exhausted from the chamber in a manner to provide uniform heating of the tow to provide a fiber that is uniformly annealed as determined by measuring light reflectance for yarn dyed with a structural sensitive Milling Blue "B" dye or shrinkage uniformity determined by thermal analysis.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: September 7, 1993
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Joseph J. Duffy, Jerry F. Potter, Elwood A. Roth, Kalika R. Samant, Maurice C. Todd
  • Method for heating crimped fibers and product thereof
    Patent number: 5187845
    Abstract: A method of producing crimped tow by continuously feeding a tow against an adjustable counter pressure means; the tow is maintained at an average predetermined thickness and steam enters the chamber and is exhausted from the chamber in a manner to provide uniform heating of the tow to provide a fiber that is uniformly annealed as determined by measuring light reflectance for yarn dyed with a structural sensitive Milling Blue "B" dye or shrinkage uniformity determined by thermal analysis.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: February 23, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Joseph J. Duffy, Jerry F. Potter, Elwood A. Roth, Kalika R. Samant, Maurice C. Todd
  • Process and apparatus for tow cross-section measurement and control
    Patent number: 5146651
    Abstract: Controlling the cross-sectional characteristics of moving tow lines by providing monitors and positioning devices so as to improve stuffer box crimp uniformity. The mass distribution profile of a filamentary tow band is continuously measured as a function of the width of the band, and the information obtained is used to change the position of the band when a deviation from a predetermined value is noted. Positioning devices are used to carry out the movement or adjusting of the band in accordance with a signal so as to correct the deviation and present to a crimping apparatus, such as a stuffer box crimper, a band having a uniform mass distribution profile.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: September 15, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Joseph J. Duffy, Jerry F. Potter, Elwood A. Roth, Kalika R. Samant, Richard E. Thek, Maurice C. Todd