×

Unified casement operator

  • US 5,054,239 A
  • Filed: 04/04/1990
  • Issued: 10/08/1991
  • Est. Priority Date: 04/04/1990
  • Status: Expired due to Term
First Claim
Patent Images

1. A casement operator for a window having a window frame and a movable window sash and sash lock comprising:

  • a base mounted to the window frame;

    a deployment linkage connectable between the window frame and said base and operable to cause movement of the window sash;

    a rotatable handle;

    a gear drive interconnecting said handle and said deployment linkage;

    a lock linkage coacting with said deployment linkage and sash lock and having a window-actuated trigger for activating said lock linkage, said lock linkage preventing forcing of the deployment linkage in the event that the window is forced when closed.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×