Soil-tilling device, particularly a plow专利检索- .犁架专利检索查询-专利查询网

Soil-tilling device, particularly a plow
申请号	US14380161	申请日	1961-10-09	公开(公告)号	US3219128A	公开(公告)日	1965-11-23
申请人	LELY NV C VAN DER;			发明人	DER LELY CORNELIS VAN;
摘要
权利要求	1. A PLOW COMPRISING A PLOW BEAM HAVING A DOWNWARDLY EXTENDING PORTION, AT LEAST ONE PLOW MEMBER SUPPORTED BY A DOWNWARDLY EXTENDING SUPPORTING ARM, SPRING MEANS CONNECTING SAID PORTION TO SAID SUPPORTING ARM, SAID SPRING MEANS BEING A PAIR OF SPACED RESILIENT MEMBERS EXTENDING IN THE SAME GENERAL DIRECTION AS SAID PORTION AND SAID SUPPORTING ARM, SAID RESILIENT MEMBERS BEING JOINED TO SAID PORTION AND SAID ARM BY SUBSTANTIALLY HORIZONTAL AND SUBSTANTIALLY PARALLEL PARTS, SAID SPRING MEANS BEING THE SOLE CONNECTION BETWEEN THE SAID PORTION AND SAID SUPPORTING ARM, SAID RESILIENT MEMBERS BEING IS CAPABLE OF PERFORMING A PERMANENT MOVEMENT IN A DIRECTION AT LEAST SUBSTANTIALLY PARALLEL TO THE DIRECTION OF TRAVEL OF THE SAID PLOW MEMBER.
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