发明名称 |
A livestock barrier and control system therefor |
摘要 |
A livestock barrier comprises a boom arm 1 having a primary arm element 21 which is driven between a closed blocking position and an open access position and a secondary arm element 22 pivotally attached to the primary arm element and adapted to rotate with the movement thereof, wherein the second arm element rotates through 180° so that the arm elements are folded together in overlying relationship in the open position and are extended in longitudinal coaxial relationship in said closed position. A drive mechanism for use with a barrier is adapted to move a primary arm element between open and closed positions about a horizontally disposed pivot axis mounted upon a support post. An excitation circuit, computer readable medium and communication device for usage within a barrier control system are also claimed. |
申请公布号 |
GB2519496(A) |
申请公布日期 |
2015.04.29 |
申请号 |
GB20130005703 |
申请日期 |
2013.03.28 |
申请人 |
DOFYGATE LIMITED |
发明人 |
JAMES WILLIAM ALSTON;OLIVER FRANK CHASTNEY |
分类号 |
A01K1/00;E01F13/06;E06B11/02 |
主分类号 |
A01K1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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