发明名称 Door closer adapter/replacement assembly
摘要 A door closer adapter/replacement assembly for converting a doorway equipped with an interiorly mounted door closer unit for usage with an exteriorly mounted door closer unit. The assembly comprises (a) a bushing positionable on an exteriorly protruding spindle of the interiorly mounted door closer unit, and (b) an arm including a tongue affixable to a door fitting the doorway, and a structural portion defining a cavity which is matable with the bushing. The bushing and the structural portion of the arm defining the cavity are constructed and arranged such that the arm is free-spinning on the bushing. The assembly is employable on spindles of both header (overhead) mounted and floor mounted door closer units, and obviates the need for disassembly of the overhead structure or threshold of the doorway, so that the concealed door closer can remain in place while the door is adapted to use with an exteriorly mounted door closer unit.
申请公布号 US4996740(A) 申请公布日期 1991.03.05
申请号 US19890396856 申请日期 1989.08.22
申请人 NATIONAL DOOR CONTROLS 发明人 HALES, SR., ROBERT N.;HALES, JR., ROBERT N.;HALES, III, ERWIN J.
分类号 E05D7/08;E05F3/22 主分类号 E05D7/08
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