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1. 发明授权

US3926806A No-bypass filter system 失效
标题翻译：无旁通过滤系统
公开(公告)号：US3926806A
公开(公告)日：1975-12-16
申请号：US47798274
申请日：1974-06-10
申请人： SCHROEDER BROTHERS
发明人： GAUDET RONALD M , MICHELL SAMUEL S , KOZY MICHAEL J
IPC分类号： B01D35/157 , B01D33/40
CPC分类号： B01D35/157
摘要： A no by-pass filter system comprising a filter head, canister and filter element arranged to divide the canister into an upstream and a downstream side. Ports in the filter head direct fluid to and away from the filter element. Positioned in the flow path between the filter element and the outlet port is a device responsive to the differential pressure across the filter element for restricting flow and thereby maintaining the differential pressure substantially constant.

2. 发明授权

US3683255A Power source for methane monitor system 失效
标题翻译：甲烷监测系统的电源
公开(公告)号：US3683255A
公开(公告)日：1972-08-08
申请号：US3683255D
申请日：1970-12-21
申请人： SCHROEDER BROTHERS
发明人： SCHROEDER WILLIAM E
IPC分类号： E21F17/18 , E21F9/00
CPC分类号： E21F17/18 , Y10S60/911
摘要： A constant voltage DC power source for operating a methane monitoring system for mining equipment and the like. A hydraulic motor teed from the main hydraulic system of the mining equipment is connected in series with a flow control element. In this way, the hydraulic motor turns fast enough to cause a generator to charge a storage battery during only periods of high pressure. The field of the generator is controlled by a voltage regulator which limits the voltage in the storage battery to a preset level. The storage battery supplies constant DC current to the monitoring system.
摘要翻译：用于操作采矿设备等的甲烷监测系统的恒压直流电源。来自采矿设备的主液压系统的液压马达与流量控制元件串联。以这种方式，液压马达足够快地转动，使得发电机仅在高压期间对蓄电池充电。发电机的电场由电压调节器控制，电压调节器将蓄电池中的电压限制在预设水平。蓄电池为监控系统提供恒定的直流电流。

8. 发明授权

US2804751A Pressure actuated control for hydraulic power systems 失效
标题翻译：液压动力系统的压力控制
公开(公告)号：US2804751A
公开(公告)日：1957-09-03
申请号：US35991653
申请日：1953-06-05
申请人： SCHROEDER BROTHERS
发明人： SCHROEDER JOHN S
IPC分类号： E21B19/086 , F15B11/16
CPC分类号： F15B11/16 , E21B19/086 , F15B2211/20538 , F15B2211/321 , F15B2211/40515 , F15B2211/428 , F15B2211/45 , F15B2211/455 , F15B2211/7107 , F15B2211/783 , Y10T137/2559 , Y10T408/172 , Y10T408/6757

9. 发明授权

US1221778A Nose-protector. 失效
标题翻译：防护器
公开(公告)号：US1221778A
公开(公告)日：1917-04-03
申请号：US13483116
申请日：1916-12-04
申请人： SCHROEDER BROTHERS MFG COMPANY , HUGO F SCHROEDER , ERNEST E SCHROEDER , RICHARD F W SCHROEDER , GUSTAVE A SCHROEDER JR , ARTHUR E R SCHROEDER
发明人： WADHAMS ABNER H
CPC分类号： A61M16/0666

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