Patents Represented by Attorney Waltner N. Kirn
  • Patent number: 5629380
    Abstract: A curable, structural epoxy adhesive composition comprising two parts is provided. The first part comprises an amine curing agent and a catalyst; the second part comprises an epoxy resin having an average epoxide functionality of greater than one.
    Type: Grant
    Filed: September 19, 1995
    Date of Patent: May 13, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John M. Baldwin, Janis Robins
  • Patent number: 5573626
    Abstract: A continuous tape supply apparatus is provided in accordance with the present invention for supplying tape at a substantially consistent tension to a tape applicator machine having an indexing demand, such as a box sealing and taping machine. In general, the continuous tape supply apparatus includes plural tape sources, such as in roll form, from which tape can be supplied to the tape applicator machine, a splicing station for splicing the tape from at least one of the tape sources to another of the tape sources, a means for causing the splice and thus the changeover of tape from one source to another, and a tension control means for providing the tape from the continuous tape supply apparatus at a substantially consistent tension under an indexing demand. Preferably, the splicing mechanism also splices tape in the reverse order from the other tape source station back to the first tape source stations.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: November 12, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Steven J. Rossini, Keith T. Pinckney, Karl M. Kropp, Robert A. Luhman
  • Patent number: 5398151
    Abstract: A liner for diskettes comprised of a nonwoven material which is thermally bonded in a closed cell pattern and which contains a binder material in amounts no greater than 1% by weight of fibers. This diskette liner shows debris reduction while not showing significant increase in flexural rigidity.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: March 14, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Leonard R. Swanson, Maurice H. Kuypers, Kevin C. Veenstra