发明名称 Road marking apparatus
摘要 A road marking apparatus has a hopper mounted upon a pair of side runners that straddle an outlet in the bottom of the hopper. A doctor blade is mounted for reciprocal vertical movement in sliding contact with the outside of a rear wall of the hopper adjacent the hopper outlet between the runners. A floor gate is mounted for reciprocal horizontal movement into and out of contact with a bottom edge of the hopper rear wall and the doctor blade for opening and closing the hopper outlet.
申请公布号 US4802788(A) 申请公布日期 1989.02.07
申请号 US19880143369 申请日期 1988.01.13
申请人 PAVE-MARK CORPORATION 发明人 SMITH, MARTIN A.
分类号 E01C23/24;(IPC1-7):E01C23/16 主分类号 E01C23/24
代理机构 代理人
主权项
地址