发明名称 Shovel with driven tiltable blade
摘要 A shovel having a blade and a handle pivotally mounted on the back of the blade with a mechanism for pivotally retaining the handle at various angles relative to the blade between an open and a closed position. A releasable locking mechanism is operable for releasing and relocking the blade relative to the handle at different relative angles between the open and closed positions. A spring bias drive is connected between the blade and the handle and is adapted for pivoting the blade under bias relative to the handle from the open position towards the closed position when the releasable locking mechanism is actuated or released.
申请公布号 US5630633(A) 申请公布日期 1997.05.20
申请号 US19960635562 申请日期 1996.04.22
申请人 DUPRE, HERMAN K.;BIHUN, JR., CHARLES 发明人 DUPRE, HERMAN K.;BIHUN, JR., CHARLES
分类号 A01B1/22;(IPC1-7):A01B1/22 主分类号 A01B1/22
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