Sprocket assembly for louver arch mechanism
Patent 6877546 Issued on April 12, 2005. Estimated Expiration Date: 
August 8, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 8, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 602967 1447189 Collapsible blind for semi-circular arched window Moveable shade for palladian windows Semi-circular window shade Retractable arced window covering Window shutters with movable louvers 6029733 Arched window blind Half circle window shutter/blind InventorApplicationNo. 10636876 filed on 08/08/2003US Classes:160/134, Fan type160/84.07, Fan type (e.g., for arched windows)49/74.1Louver-type closures (e.g., slats or panels)ExaminersPrimary: Lev, Bruce A.Attorney, Agent or FirmInternational ClassE06B003/94AbstractA sprocket assembly for a louver arch assembly for semi-circular, non-perfect or imperfect arch frame assemblies with louvers rotably mounted therein. A tensioning mechanism keeps the louvers taut between an arched frame member and a smaller anchorage frame member. An actuating mechanism is used to rotate the louvers upon the application of a predetermined force to a chain that coacts with the sprocket assemblies coupled with hooked clip members that removably hold the louvers. The sprocket assembly includes a through opening and a socket with cooperative dimensions to receive the headed end of a pin, and an internal inwardly extending pin. A longitudinal channel is cooperatively disposed to receive the inwardly extending pin therein. In this manner, the louvers are rotated between two extreme positions. | |
