发明名称 |
Apparatus for opening a grain door |
摘要 |
An opener of the door of a gravity flow vehicle which allows a mechanical advantage in initially raising the door. After the material within the vehicle begins to flow and decrease the effort required to raise the door, the mechanical advantage is bypassed so that the door may be quickly raised and lowered.
|
申请公布号 |
US5357713(A) |
申请公布日期 |
1994.10.25 |
申请号 |
US19930060581 |
申请日期 |
1993.05.11 |
申请人 |
DETHMERS MANUFACTURING COMPANY |
发明人 |
JISKOOT, SID;LAMMERS, WALTER |
分类号 |
E05F11/08;(IPC1-7):E05F11/00 |
主分类号 |
E05F11/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|