发明名称 |
INTERNAL AIR RELEASE CONTROL APPARATUS AIR GUN |
摘要 |
<p>TI-7798 INTERNAL AIR RELEASE CONTROL APPARATUS AIR GUN Disclosed is a seismic source device, known in the industry as an air gun, having shuttle control for allowing a predetermined discharge of compressed air into water for purposes of seismic exploration. The shuttle is controlled by valve means for closing the exhaust ports before all of the compressed air in the firing chamber of the air gun is exhausted. By preventing further discharge of air, with little or no loss in acoustic output, secondary pulses are greatly reduced, thereby enhancing the operation of the entire system. Further by preventing all the air in the firing chamber from being discharged, the system becomes more efficient and more cost effective.</p> |
申请公布号 |
CA1155537(A) |
申请公布日期 |
1983.10.18 |
申请号 |
CA19800348843 |
申请日期 |
1980.03.31 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
HARRISON, EARNEST R.;JOHNSTON, ROY C. |
分类号 |
G01V1/137;(IPC1-7):G01V1/04;G01V1/38 |
主分类号 |
G01V1/137 |
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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