公开(公告)号：WO1997006663A1

公开(公告)日：1997-02-27

申请号：PCT/US1996012833

申请日：1996-08-08

Applicant: ENVIRONMENTAL PROTECTION DEVELOPERS, INC.

Inventor： ENVIRONMENTAL PROTECTION DEVELOPERS, INC. ,  NEET, Jacob, Lloyd ,  MELENDEZ, James, R.

IPC: A01B01/04

CPC classification number: B07B1/469 ,  A01B1/022 ,  A01K1/0114 ,  B07B1/02 ,  Y02A40/294

Abstract: A shovel includes a handle (11) and a blade (12) in which a central portion of the blade contains a plurality of perforations (16). The perforations are in an array of rows and columns and the rows extend in a direction perpendicular to the handle. The perforations are elongated and have a length in a direction approximately perpendicular to the handle. The perforations in adjoining columns and rows are interleaved a predetermined amount and the total area of the perforations is about one-half the area of the central portion. The blade is made from a single sheet of steel which is punched and bent to shape.

Abstract translation: 铲子包括手柄（11）和刀片（12），刀片的中心部分包​​含多个穿孔（16）。 穿孔是行和列的阵列，并且行在垂直于手柄的方向上延伸。 穿孔是细长的并且在大致垂直于把手的方向上具有长度。 邻接的列和行中的穿孔被交错预定量，并且穿孔的总面积是中心部分的面积的大约一半。 刀片由冲压和弯曲成形的单张钢制成。