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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||7/114 ; 56/40004 ; 172/375 ; 294/51|
|발명자 / 주소|
|인용정보||피인용 횟수 : 12 인용 특허 : 1|
A ground working implement assembly having a handle (11) and a plurality of implement heads (13, 14, 15, 16 and 17). Each implement head has a ground working member (13A, 14A, 15A, 16A and 17A) and a tang (13B, 14B, 15B, 16B and 17B). One end of the handle (11) has a socket assembly (20) adapted to receive the tang of an implement head. A retaining pin (31) removably secures the tang of an implement to the socket assembly (20) when the tang is received thereby. The implement heads (13, 14, 15, 16 and 17) are configured so that they are nestable with each...
A ground working implement assembly comprising: a plurality of removable implement heads, each said head having a ground working member and a tang having a reinforcing boss therein, said boss defining a protrusion on one side of said tang and a corresponding recess on the opposite side of said tang; handle means, one end of said handle means having socket means adapted to receive said tang of a said implement head; and means for removably securing said tang of said implement head to said socket means when said tang is received thereby; said implement hea...