发明名称 Side mount garage door release
摘要 A release apparatus for selectively connecting and disconnecting a sprocket drive wheel from a driven shaft by selectively thrusting a pair of sprag pins through registering openings in the sprocket wheel and into peripheral recesses in a collar secured to the drive shaft. The portion of the device attached to the sprag pins is also attached to the drive shaft for joint rotation.
申请公布号 US5048653(A) 申请公布日期 1991.09.17
申请号 US19900556614 申请日期 1990.07.23
申请人 FELLOWS, JERRY W. 发明人 FELLOWS, JERRY W.
分类号 E05F15/16;F16D11/14 主分类号 E05F15/16
代理机构 代理人
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