Closing devices incorporating rolling means
Patent 5682937 Issued on November 4, 1997. Estimated Expiration Date: 
April 8, 2016. 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 8, 2016. 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 ReferencesRoll-up door for vehicle shelters Patent #: 5579820 InventorsAssigneeApplicationNo. 629051 filed on 04/08/1996US Classes:160/133, Roll type160/241, Plural roll160/273.1With interlock between fabric and guideExaminersPrimary: Johnson, Brian L.Attorney, Agent or FirmForeign Patent References
International ClassE06B 009/08Foreign Application Priority Data1995-04-14 FRAbstractClosures such as rolling shades or blinds which include a drum for winding slats of the closure body and which are formed by two superposed shafts. Separation devices are provided adapted to prevent any friction between layers of slats wound on the shafts. These devices may include stepped pulleys associated with slat end pieces of different lengths. | |
