发明授权
- 专利标题: Pushing apparatus, and methods of constructing and utilizing same
- 专利标题(中): 推动装置及其构造和利用方法
-
申请号: US884001申请日: 1986-07-10
-
公开(公告)号: US4709492A公开(公告)日: 1987-12-01
- 发明人: Gordon Watson
- 申请人: Gordon Watson
- 专利权人: Gordon Watson
- 当前专利权人: Gordon Watson
- 主分类号: E01H5/02
- IPC分类号: E01H5/02 ; E01H5/06 ; E02F3/815 ; E01H5/04
摘要:
A device for back scraping snow, earth, or other like substances which generally includes a truck having a concave snowplow blade mounted on its front. The blade has shoes provided on its backside, wedge shaped hinged connections mounted on the shoes, and a flat blade mounted pivotably on said wedge brackets. When the flat blade is brought in contact with snow to be scraped and the snowplow blade is moved in a backwardly direction, the snow to be scraped is moved by the flat blade.
公开/授权文献
- US6048379A High density composite material 公开/授权日:2000-04-11
信息查询