Enclosed louver mechanism
Patent 5216837 Issued on June 8, 1993. Estimated Expiration Date: 
October 7, 2012. 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.
October 7, 2012. 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 425542 595854 2898035 2903257 3201832 3702040 3746042 3758988 Adjustable louver shutter Window blind InventorsAssigneeApplicationNo. 958097 filed on 10/07/1992US Classes:49/82.1, Geared, interconnector or operator49/74.1Louver-type closures (e.g., slats or panels)ExaminersPrimary: Kannan, Philip C.Attorney, Agent or FirmInternational ClassesE05F 017/00E06B 007/096 AbstractAn enclosed louver actuating mechanism is disclosed which employs generally a rack and pinion gear system for actuating a plurality of louvers. The louver mechanism is configured so that upon manual rotation of one louver the remaining louvers are rotated. The louver mechanism is contained within a longitudinal slot in a stile of a louvered panel and includes a plurality of pinion gears enmeshed between opposing longitudinal gear racks. A pinion gear is provided for each louver and is located in the stile between the gear racks so that the longitudinal gear racks translate in opposite directions relative the pinion gears. A longitudinal cover encloses the rack and pinion drive mechanism and includes through holes corresponding to the pinion gears and louvers. Drive pins are received through the longitudinal cover between the louvers and pinion gears. | |
