Patents by Inventor Lyle N. Scheel

Lyle N. Scheel 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).

  • Restricted flow die
    Patent number: 5702527
    Abstract: A coating device has a first half and a second half located adjacent the first half to form a slot between the first and second halves. A porous material, having a thickness greater than the height of the slot, is disposed in the slot to compress uniformly along its width. The porous material has a porosity and a height selected in combination with each other to create a predetermined pressure drop through the slot and to maintain the pressure drop to create the desired flow rate along the slot width. The size of the pores in the porous material can be less than 25 .mu.m and the exit pressure drop through the slot can be at least one thousand times greater than could be obtained without the porous material.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: December 30, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Albert E. Seaver, Lyle N. Scheel, Luther E. Erickson, Daniel R. Danielson