Patents by Inventor Walter B. Halm

Walter B. Halm 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).

  • Fillings and other aspects of fibers
    Patent number: 5500295
    Abstract: Fiberballs have been prepared from mechanically-crimped fibers having both a primary crimp and a secondary crimp with specific configurations, especially amplitudes and frequencies. The fiberballs may contain a proportion of other fibers, particularly binder fibers, and used for making molded structures.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: March 19, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Walter B. Halm, William J. Jones, Jr., James F. Kirkbride, Ilan Marcus, Adrian C. Snyder
  • Process for preparing fiberballs
    Patent number: 5338500
    Abstract: Fiberballs are prepared from mechanically-crimped fibers having both a primary crimp and a secondary crimp with specific configurations, especially amplitudes and frequencies. The fiberballs may contain a proportion of other fibers, particularly binder fibers.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: August 16, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Walter B. Halm, William J. Jones, Jr., James F. Kirkbride, Ilan Marcus, Adrian C. Snyder
  • Fillings and other aspects of fibers
    Patent number: 5238612
    Abstract: Fiberballs are prepared from mechanically-crimped fibers having both a primary crimp and a secondary crimp with specific configurations, especially amplitudes and frequencies. The fiberballs may contain a proportion of other fibers, particularly binder fibers.
    Type: Grant
    Filed: January 13, 1992
    Date of Patent: August 24, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Walter B. Halm, William J. Jones, Jr., James F. Kirkbride, Ilan Marcus, Adrian C. Snyder
  • Fillings and other aspects of fibers
    Patent number: 5112684
    Abstract: Fiberballs for filling uses have been prepared from mechanically-crimped fibers having both a primary crimp and a secondary crimp with specific configurations, especially amplitudes and frequencies. The fiberballs may contain a proportion of other fibers, particularly binder fibers.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: May 12, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Walter B. Halm, William J. Jones, Jr., James F. Kirkbride, Ilan Marcus, Adrian C. Snyder