Patents by Inventor Frank Roetter

Frank Roetter 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: 4635922
    Abstract: An envelope feeding apparatus, including a hopper having a support deck and a pair of vertical sides extending upwardly from the support deck, the support deck being oriented at an acute angle with respect to a horizontal plane, a separator roller and a separator stone situated at the lower end of the hopper for feeding envelopes seriatim from the hopper, a center ramp located upstream of the separator roller and the separator stone, the center ramp extending only a small portion of the distance between the vertical sides of the hopper, a center feed roller located above the downstream portion of the center ramp and proximate the separator stone, whereby the lower corners of the envelopes are raised off the support deck when the envelopes are translated along the center ramp and under the feed roller, thereby allowing the envelopes to approach the separator roller and the separator stone unskewed.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: January 13, 1987
    Assignee: Pitney Bowes Inc.
    Inventors: Frank Roetter, Frank Oeschger