Patents by Inventor Bertus Schoonmade

Bertus Schoonmade 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: 4227687
    Abstract: Apparatus for separating and removing a sheet from a stack of such sheets is provided with a reciprocating pushing member engaging the trailing edge of the lowermost sheet in the stack to push the same into contact with transport means capable of engaging the leading edge of the sheet for further transportation thereof. The pushing member has a pushing surface extending perpendicular to the surface supporting the stack and with a lower edge which, in the operative position of the pushing member, is substantially at the level of the stack supporting surface. The apparatus is particularly suitable for feeding film sheets from a cassette at a relatively high rate.
    Type: Grant
    Filed: April 13, 1978
    Date of Patent: October 14, 1980
    Assignee: N.V. Optische Industrie "De Oude Delft"
    Inventor: Bertus Schoonmade