发明授权
- 专利标题: Apparatus for levelling concrete
- 专利标题(中): 水泥混凝土设备
-
申请号: US20429申请日: 1987-03-02
-
公开(公告)号: US4861188A公开(公告)日: 1989-08-29
- 发明人: Roger Rouillard
- 申请人: Roger Rouillard
- 申请人地址: CAX
- 专利权人: Les Placements Paro Inc.
- 当前专利权人: Les Placements Paro Inc.
- 当前专利权人地址: CAX
- 优先权: CAX503,379 19860305
- 主分类号: E04F21/04
- IPC分类号: E04F21/04
摘要:
This invention relates to a method and an apparatus for compacting and smoothing freshly poured concrete during the construction of a floor or other flat surface. The apparatus is a screed divided in two portions. The first portion is used to level, compact and remove excess concrete and the second portion allows the screed to float on the freshly poured and soft concrete.
公开/授权文献
- USD364955S Tool and parts holder 公开/授权日:1995-12-12
信息查询