发明名称 |
COMBINED CONTROL AND CHECK VALVE FOR GAS TORCHES |
摘要 |
<p>A combination control valve and check valve for a gas torch is disclosed wherein a check valve is positioned within an annular control valve member downstream of a spherical control valve element with which the annular control valve member cooperates to open and close the control valve and thus the flow of gas from a source to a gas torch. The check valve protects the control valve under reverse gas flow conditions.</p> |
申请公布号 |
CA2211810(C) |
申请公布日期 |
2000.05.23 |
申请号 |
CA19972211810 |
申请日期 |
1997.07.30 |
申请人 |
THE LINCOLN ELECTRIC COMPANY |
发明人 |
EDENFIELD, RANDY C. |
分类号 |
F16K15/18;F23D14/46;F23D14/82;(IPC1-7):B23K5/22 |
主分类号 |
F16K15/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|