Patents by Inventor David Duley

David Duley 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).

  • Patent number: 4734807
    Abstract: This invention comptemplates providing a tape cassette cleaner which is light in weight, simple and easy to manufacture and comprises a housing having a forward section in which there is a rotatable spool to be engaged by the drive mechanism of a tape recorder. The housing has a rearward section having a spool therein which is driven by the first spool by a drive belt. The rear section has a spindle extending from the pulley wheel and is adapted to engage a spool of a tape cassette. Adjacent the spindle is a projection which is adapted to engage the other spool of a tape cassette. Wiping pads are provided on supports which wiping pads engage the tape or film of a tape cassette. When the forward section is inserted into a tape recorder, the pulley wheels are driven by the interconnecting drive belt and the tape cassette tape is caused to move past the wiping surfaces to clean dirt and oxide therefrom. One of the wiping surfaces may be saturated with a cleaning solution manually.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: March 29, 1988
    Inventor: David Duley