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1. 发明授权

US4040771A Line relay valve 失效
标题翻译：线路继电阀
公开(公告)号：US4040771A
公开(公告)日：1977-08-09
申请号：US686452
申请日：1976-05-14
申请人： Paul A. Leach
发明人： Paul A. Leach
IPC分类号： A62C33/00 , E03B9/00 , E03B5/00
CPC分类号： A62C33/00 , E03B9/00 , Y10T137/86139
摘要： A line relay valve has a valve body with a straight trunk which connects a movable pump to a fire extinguishing nozzle. When the hose lay is several thousand feet, causing severe pressure loss, a first angular branch of the trunk, with a gate valve, is connected to the influent side of a movable booster pump. A second angular branch is connected to the effluent side of the booster pump. Upon opening the gate valve, a clapper swings from first branch blocking position to trunk blocking position to interpose the booster into the system without air intake or water interruption.
摘要翻译：线路继电器阀具有将活动泵连接到灭火喷嘴的直的主体的阀体。当软管铺设数千英尺，造成严重的压力损失时，带有闸阀的主干的第一个角分支连接到可移动增压泵的流入侧。第二角分支连接到增压泵的流出侧。在打开闸阀时，阀瓣从第一分支阻塞位置摆动到管路阻塞位置，以将增压器插入系统中而不进气或水中断。

2. 发明授权

US4139224A Hose clamp for thin wall, high pressure fire hose 失效
标题翻译：软管夹用于薄壁，高压消防水带
公开(公告)号：US4139224A
公开(公告)日：1979-02-13
申请号：US815187
申请日：1977-07-13
申请人： Paul A. Leach
发明人： Paul A. Leach
IPC分类号： F16L33/23 , F16L33/04
CPC分类号： F16L33/23 , Y10T24/1451
摘要： A split, annular hose clamp for clamping one end of a length of thin wall, high pressure, fire hose on the nipple, or insert, of a hose coupling has relatively blunt, alternate ribs and grooves opposite to, fitting and mating with similar ribs and grooves on the nipple and has a pair of machine screws each extending across the butt joint of a pair of one-piece, substantially idential halves in which the heads are within the confines of the head recesses so that there are no sharp protuberances to cut fire hose. The screw heads are socketed for turning and the clamp is of less diameter than the coupling.
摘要翻译：用于夹紧软管接头的乳头或插入件上的一小段薄壁，高压，消防软管的一端的分开的环形软管夹具具有相对钝的，交替的肋和槽，与相似的肋条相配合和乳头上的凹槽，并且具有一对机器螺钉，每对机械螺钉穿过一对一体的基本上相同的一半的对接接头延伸，其中头部位于头部凹部的范围内，使得不存在尖锐的突起消防水带。螺钉头插座用于转动，夹具直径小于联轴器。

3. 发明授权

US4050857A Incoming gated relief valve 失效
标题翻译：进口门控安全阀
公开(公告)号：US4050857A
公开(公告)日：1977-09-27
申请号：US686385
申请日：1976-05-14
申请人： Paul A. Leach
发明人： Paul A. Leach
IPC分类号： A62C27/00 , F04B53/00 , F04B49/00 , A62C27/20
CPC分类号： A62C27/00 , F04B53/00 , Y10T137/2617
摘要： A gate valve is threadedly attached to an influent port of a motorized pump of a vehicular fire engine at all times. Thus it is not necessary to stop the pump, remove a cap and connect a water supply hose to the influent port. Instead the supply hose is connected to the gate valve, the valve is purged of air, and then opened to connect the new source without air hammer, or flow interruption. A pressure relief valve on the suction side of the gate, relieves pump pressure whether the gate is open or closed.
摘要翻译：闸阀始终与车辆消防车的电动泵的进水口螺纹连接。因此，不需要停止泵，拆下盖子并将进水口连接到供水软管。而是将供水软管连接到闸阀上，阀门被清除空气，然后打开以连接新的来源，无气锤或流动中断。闸门吸力侧的减压阀，无论闸门是打开还是关闭，均可减轻泵压力。

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