Safety hook with a releasable rotatable hanging loop

A safety hook includes a hook body comprising an internally threaded ring portion on bottom; a bolt including upper threads passing the ring portion, two intermediate annular flange members, and a lower annular groove; a nut threadedly secured to the upper threads; a biasing member; a rotatable hang...

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Bibliographic Details
Main Author YANG GUI-ZHU
Format Patent
LanguageEnglish
Published 23.08.2012
Subjects
BLASTING
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:A safety hook includes a hook body comprising an internally threaded ring portion on bottom; a bolt including upper threads passing the ring portion, two intermediate annular flange members, and a lower annular groove; a nut threadedly secured to the upper threads; a biasing member; a rotatable hanging loop including a top ring portion, an annular trough on an inner surface of the top ring portion, and a loop depending downward from the top ring portion; and a cylindrical connection member including a lengthwise central hollow, external threads on an upper portion, a spring depressible detent through the upper portion, an intermediate annular flange, and two opposite steel balls each through a lower portion; and a gate pivotably secured to the hook body for opening or closing mouth of the hook body.
Bibliography:Application Number: US201113032574