Patents by Inventor Darwin B. Dosch

Darwin B. Dosch 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: 5715631
    Abstract: Disclosed is a multiple position window latch which includes a latch housing attached to a top rail of a window sash. A stem extends through the latch housing and a latch handle is positioned above the latch housing and is attached to an upper end of the stem. A sweep cam is positioned within the latch housing and is attached to the stem. The sweep cam rotates into and out of the latch housing and engages a keeper on an adjacent window sash. An elongated slide is positioned beneath the latch housing and extends within the top rail toward an adjacent side of the window sash. A driving member on the stem, such as a plurality of gear teeth around a lower end thereof, engages a driven member on the slide, such as a plurality of gear teeth forming a slide.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: February 10, 1998
    Assignee: Appleby Systems, Inc.
    Inventors: Nourhan Kailian, Darwin B. Dosch