Pivotal and adjustable closure vertical rail louver system
Patent 5347756 Issued on September 20, 1994. Estimated Expiration Date: 
April 12, 2013. 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.
April 12, 2013. 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 390392 702148 2026653 2311122 2921819 3137043 3191241 3591980 3706165 Pivoted damper blade and pin therefor InventorsApplicationNo. 046402 filed on 04/12/1993US Classes:49/74.1Louver-type closures (e.g., slats or panels)ExaminersPrimary: Cuomo, Peter M.Assistant: Redman, Jerry Attorney, Agent or FirmInternational ClassE05F 017/00AbstractAn adjustable closure rail system is provided with a fixed top rail and a fixed bottom rail and a plurality of pivotal louvers mounted therebetween on friction free spindles and bushings. Each said louver is provided with a pivot link mounted in the top end of said louvers and is offset from the spindles or bushings which pivotally mounts said louvers. And a universal link bar is provided for cooperating with each of the pivot links so that pivotal force movement of one of said vertical louvers imparts the same pivotal force motion via said pivot links and said universal link bar to each of said other louvers. | |
