发明名称 |
Screed system |
摘要 |
A screed system, having: a first elevatable rail; a second elevatable rail; a screed bar positioned below the first and second rails and supported by the first and second elevatable rails by respective first and second rotatable hinges, the screed bar moveable along the first and second rails and rotatable relative to the first and second rails at both the respective first and second rotatable hinges. |
申请公布号 |
US9045869(B2) |
申请公布日期 |
2015.06.02 |
申请号 |
US201213546839 |
申请日期 |
2012.07.11 |
申请人 |
|
发明人 |
Biernacki Andrzej Robert;Domzal Waldemar |
分类号 |
E01C19/48;E04F21/24;E01C19/18;E01C19/44 |
主分类号 |
E01C19/48 |
代理机构 |
LeClairRyan, a Professional Corporation |
代理人 |
LeClairRyan, a Professional Corporation |
主权项 |
1. A screed system, comprising:
a first elevatable rail; a second elevatable rail; a screed bar positioned below the first and second elevatable rails and supported by the first and second elevatable rails by respective first and second rotatable hinges, each of said rotational hinges comprising a slidable rail head positionable along said first and second elevatable rails for movement of the screed bar along the first and second elevatable rails, said rail head supporting a thrust bearing having a female hinge, said female hinge configured to hold and support a male hinge for rotation of the screed bar relative to the first and second elevatable rails at both the respective first and second rotatable hinges, said male hinge secured to a screed head slidingly positionable along said screed bar; and a handle extending from said screed bar, said handle enabling a single user to rotate said screed bar relative to the first and second rails about an axis parallel to the screed bar. |
地址 |
Coquitlam, British Columbia CA |