Plural Bladed Patents (Class 15/236.05)
Simultaneously useable (Class 15/236.06)
  • Cleaning card
    Patent number: 6210490
    Abstract: A cleaning card for cleaning the magnetic heads of magnetic card readers is disclosed. As the card is pushed through the reader, the magnetic head protrudes through the card and then as the card continues to move the sides of the hole in the card scrub both sides of the head effectively removing dirt.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: April 3, 2001
    Assignee: elk Technologies
    Inventors: David A. Michael, Larry W. Ditty