Patents Assigned to Erwin Welding & Machine, Inc.
  • Method and apparatus for manufacturing discrete layered articles from a continuous web
    Patent number: 4479295
    Abstract: A method and apparatus are provided for manufacturing a plurality of discrete layered articles having a non-rectangular cross-sectional shape from a web of batting of indeterminate length. The web is fed into an oscillating chute to define a plurality of layers. A continuous notch is defined in the layers to define a non-rectangular cross-sectional shape. A predetermined portion of the notched layers is separated from the following layers and secured to define a discrete article.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: October 30, 1984
    Assignee: Erwin Welding & Machine, Inc.
    Inventor: Carroll Musick