发明名称 Safety latch for doors and similar structures
摘要 A safety latch construction is disclosed, of the type which has a rigid, pivoted slot-providing member secured to the doorframe, and a runner secured to the door having a T-shaped projection which engages the slot when the safety latch is operative, thereby limiting the amount of door opening movement. All of the parts are formed by stamping processes. No casting or machining is required. The doorframe member includes (a) a supporting member secured to the doorframe and having integral flanges providing pivot apertures, and (b) a pivoted member having an elongated slot formed between metal side bars which have projecting pivot pins and which are spaced at their pivoted ends, the resiliency of the side bars permitting the pivoted member to be readily assembled to the supporting member. An additional locking member provides a deadbolt feature.
申请公布号 US4684159(A) 申请公布日期 1987.08.04
申请号 US19850762219 申请日期 1985.08.05
申请人 HUTTER, ROMUALD J. 发明人 HUTTER, ROMUALD J.
分类号 E05C17/16;(IPC1-7):E05B17/16 主分类号 E05C17/16
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