Friction stay with resilient coupling for windows
Patent 4414706 Issued on November 15, 1983. Estimated Expiration Date: 
September 8, 2001. 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.
September 8, 2001. 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 ReferencesInventorAssigneeApplicationNo. 06/300395 filed on 09/08/1981US Classes:16/370, Four or more axes403/341, INTERFITTED MEMBERS WITH EXTERNAL BRIDGING PIECE403/388, Traversed by connector49/248Multiple links angularly relatedExaminersPrimary: Silverberg, Fred A.Attorney, Agent or FirmInternational ClassesE05D 15/46 (20060101)E05D 15/40 (20060101) Foreign Application Priority Data1980-09-23 GBAbstractA friction stay for a window has mounting plates 1,3 for connection to the window frame and sash (not shown) with the plates being connected by pivotal arms 5,8. There is provided a coupling 13 in one arm which connects two link parts 11 and 12 of the arm together. The coupling 13 includes two resilient elements 16,17 which are arranged to be compressed under loads applied longitudinally of the arm on pivotal movement of the stay in use. The elements 16,17 effectively store energy and release this on folding of the stay to apply a pull-in force to the sash to hold it closed to the frame. The coupling 13 includes a connector plate 14 which by a rivet 22 couples and locates the ends of the link parts 11,12 together for relative movement with the resilient elements 16,17 being interposed between the plate 14 and opposed link parts. Other forms of resilient coupling are described in further embodiments. | |
