Patents by Inventor Bill Houfek

Bill Houfek 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).

  • High-speed spun-bond production of non-woven fabrics
    Patent number: 7578317
    Abstract: In combination with a high-speed spun-bond apparatus, rather than using a circulating sieve belt for collecting the stretched filaments and forming the web, a fabric having a 4-shed double layer with support shute weave design is used. This fabric is commonly referred to as a 4B weave and 4B weave with stuffer in center. In general, the fabric has a permeability ranging from 400 to 800 cfm with a woven or pin seam where the seam permeability and caliper varies only slightly with respect to the rest of the fabric.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: August 25, 2009
    Assignee: Albany International Corp.
    Inventors: Mark J. Levine, David Graham, Bill Houfek, Thomas L. Israel
  • High-speed spun-bond production of non-woven fabrics
    Publication number: 20030164199
    Abstract: In combination with a high-speed spun-bond apparatus, rather than using a circulating sieve belt for collecting the stretched filaments and forming the web, a fabric having a 4-shed double layer with support shute weave design is used. This fabric is commonly referred to as a 4B weave and 4B weave with stuffer in center. In general, the fabric has a permeability ranging from 400 to 800 cfm with a woven or pin seam where the seam permeability and caliper varies only slightly with respect to the rest of the fabric.
    Type: Application
    Filed: October 25, 2002
    Publication date: September 4, 2003
    Inventors: Mark J. Levine, David Graham, Bill Houfek, Thomas L. Israel