发明名称 Resilient tubing-powered gig for spearing fish
摘要 The invention is a gig for spearing fish. It has a handgrip with a bore, longer in its vertical axis than in its horizontal axis, running lengthwi,e through it. Slidably mounted in the bore is a spear shaft propelled by a loop formed of resilient tubing attached to the end of the spear shaft and also to the end of the handgrip. When the spear shaft is pushed backward into the handgrip, the kerf, which is cut around the spear shaft near the front end, engages a pin transversing the bore near the top of the bore so as to secure the spear shaft in a state of readiness. Pushing down on the front portion of the spear shaft, which is inclined upward in the bore of the handgrip, releases the kerf from the pin and allows the spear shaft to be propelled forward as the resilient tubing contracts.
申请公布号 US4027418(A) 申请公布日期 1977.06.07
申请号 US19760663977 申请日期 1976.03.04
申请人 BALDI, DANIEL GERARD;BALDI, JAMES ALLEN 发明人 BALDI, DANIEL GERARD;BALDI, JAMES ALLEN
分类号 A01K81/00;(IPC1-7):A01K81/04 主分类号 A01K81/00
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