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公开(公告)号：US4774942A
公开(公告)日：1988-10-04
申请号：US90554
申请日：1987-08-28
申请人： Chris M. Moellers
发明人： Chris M. Moellers
摘要： A closed loop breathing system includes a face mask, a pressurized bottle of oxygen-rich breathing gas, and an exhalation hose and an inhalation hose both coupled to the face mask. Flexible breathing bags smoothen the flow of expired gas through the system, and a container of sorbent material removes CO.sub.2 from the expired gas. A mixing valve mixes expired breathing gas from the face mask with oxygen-rich breathing gas from the pressurized container. A balanced exhalation valve assembly coupled to the exhalation hose includes a main valve which passes the flow of expired gas from the exhalation hose into a chamber and prevents the reverse flow of gas from the chamber into the exhalation hose. A flexible diaphragm forms one wall of the chamber and is coupled to the main valve by a rigid spacer to prevent a pressure increase in the chamber from increasing the force necessary to open the main valve.
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公开(公告)号：US4724833A
公开(公告)日：1988-02-16
申请号：US858705
申请日：1986-05-02
申请人： Josef A. Bartos
发明人： Josef A. Bartos
CPC分类号： F17C13/028 , A62B7/02 , A62B9/00 , F17C13/06 , G05D16/0608 , F17C2201/0109 , F17C2201/0119 , F17C2201/032 , F17C2201/058 , F17C2205/0138 , F17C2205/0314 , F17C2205/0323 , F17C2205/0329 , F17C2205/0332 , F17C2205/0335 , F17C2205/0338 , F17C2205/0364 , F17C2205/0382 , F17C2205/0385 , F17C2205/0394 , F17C2221/011 , F17C2223/0123 , F17C2250/043 , F17C2250/0626 , F17C2250/0636 , F17C2270/025 , Y10T137/7782
摘要： Portable emergency breathing apparatus is disclosed which is comprised of a compressed breathing gas container having a housing mounted on the open end thereof which supports a pressure gauge, a pressure reducing valve assembly, and burst valve, fill valve and needle valve components. The pressure reducing valve controls the flow of breathing gas from the container to a breathing hose attached to the housing and leading to a face mask or hood worn by the user. The housing has a flat axially outer end relative to the container and a radially outer periphery which is within the cylindrical plane of the side wall of the container, and the housing is structured for mounting on the container so as to optimize compactness of the apparatus and protection of the pressure gauge and the pressure reducing, burst, fill and needle valves from damage during storage and use. A modification of the housing enables the apparatus to include two or more compressed breathing gas containers in side-by-side relationship, thus to increase the duration of use of the apparatus.
摘要翻译： 公开了一种便携式应急呼吸器，其包括压缩呼吸气体容器，其具有安装在其开口端上的壳体，其支撑压力计，减压阀组件和爆裂阀，填充阀和针阀组件。 减压阀控制呼吸气体从容器到连接到壳体的呼吸软管的流动，并导致用户佩戴的面罩或罩。 壳体具有相对于容器的平坦的轴向外端和位于容器的侧壁的圆柱形平面内的径向外周，并且壳体被构造成用于安装在容器上，以便优化设备的紧凑性， 保护压力表和减压，爆破，填充和针阀在储存和使用过程中受到损坏。 壳体的改进使得该装置能够并排地包括两个或更多个压缩呼吸气体容器，从而增加了设备的使用时间。
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公开(公告)号：US4702243A
公开(公告)日：1987-10-27
申请号：US899066
申请日：1986-08-21
申请人： Ronald D. Smith
发明人： Ronald D. Smith
CPC分类号： A62B7/02
摘要： A full face smoke mask having a detachable air tank for dispensing air to the mask in smoke emergencies. A valve on the air tank is opened automatically when the tank is threaded to a rigid fitting carried on the mask. The valve body is equipped with a rupture film which ruptures to vent excessive pressure in the dispensing system.
摘要翻译： 全面罩面具有可拆卸的空气罐，用于在烟雾紧急情况下将空气分配到面罩。 当油箱拧到面罩上的刚性配件上时，空气罐上的阀门会自动打开。 阀体配备有破裂膜，其破裂以排出分配系统中的过大压力。
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公开(公告)号：US4633868A
公开(公告)日：1987-01-06
申请号：US736718
申请日：1985-05-22
摘要： A closed-circuit type respirator includes an oxygen enriching valve provided in an exhalation system of the respirator, preferably at the lower front end of a respirator mask. This oxygen enriching valve comprises a housing having a passage communicating to the exhalation system and a passage communicating to the atmosphere, a first valve which is provided in the passage communicating to the exhalation system and opens only when pressurized for exhalation and a second valve which is provided in the passage communicating to the atmosphere and is opened for a desired period of time by an external force such as manual operation so that the space inside the housing communicates with the atmosphere. By manually or otherwise opening the second valve of the oxygen enriching valve whenever necessary and making a few deep breathings, the exhaled air is discharged in the atmosphere, reducing the pressure in the circulation system and effecting automatic supply of oxygen, whereby insufficiency of oxygen supply can be avoided.
摘要翻译： 闭路式呼吸器包括设置在呼吸器的呼气系统中的富氧阀，优选在呼吸面罩的下前端。 该富氧阀包括具有与呼气系统连通的通道和与大气连通的通道的壳体，设置在与呼气系统连通并且仅在呼气加压时打开的通道的第一阀和第二阀， 设置在与大气相通的通道中，并且通过诸如手动操作的外力打开所需的时间段，使得壳体内的空间与大气连通。 通过手动或其他方式打开富氧阀的第二阀，并进行几次深吸气，呼出的空气在大气中排放，降低了循环系统的压力，并实现了自动供氧，从而供氧不足 可以避免。
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85.发明授权Breathing apparatus with connector system for supplying emergency air to another individual 失效具有用于向另一个人提供紧急空气的连接器系统的呼吸装置
公开(公告)号：US4328798A
公开(公告)日：1982-05-11
申请号：US185295
申请日：1980-09-08
申请人： Max Isaacson
发明人： Max Isaacson
CPC分类号： A62B7/02
摘要： A fire-fighter carries a self-contained breathing apparatus wherein air is directed from a pressurized supply tank to a face mask through a pressure regulator and a demand inhalation valve connected to the face mask by a flexible breathing tube. A check valve and quick release coupler unit is connected to the pressure regulator and is adapted to be temporarily connected by an adaptor to the flexible breathing tube extending from the face mask of a breathing apparatus on a second fire-fighter to provide for quickly supplying emergency air to the second fire-fighter. Preferably, the adaptor is normally retained and carried in an inactive position by the coupler unit so that it is always available for immediate use.
摘要翻译： 消防员携带自给式呼吸器，其中空气通过压力调节器和通过柔性呼吸管连接到面罩的需求吸入阀从加压供应罐引导到面罩。 止回阀和快速释放联接器单元连接到压力调节器，并且适于通过适配器临时连接到在第二消防员上从呼吸器的面罩延伸的柔性呼吸管，以提供快速供应紧急 空气到第二个消防员。 优选地，适配器通常由联接器单元保持并处于非活动位置，使得其总是可立即使用。
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公开(公告)号：US4034753A
公开(公告)日：1977-07-12
申请号：US617989
申请日：1975-09-29
申请人： Allan A. Connel
发明人： Allan A. Connel
CPC分类号： A61M16/104 , A61M16/1015
摘要： An anesthetic machine is provided with a means of supplying oxygen with or without an anesthetic which is supplied in measured quantities to the patient, whether a human or other animal. The anesthesia is provided in accurate dosage to the human or animal.
摘要翻译： 麻醉机具有供给氧气的方法，该装置具有或不具有麻醉剂，所述麻醉剂以测量的量供给患者，无论是人或其他动物。 向人或动物提供精确剂量的麻醉。
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公开(公告)号：US4003396A
公开(公告)日：1977-01-18
申请号：US526057
申请日：1974-11-21
申请人： Lewis W. Fleischmann
发明人： Lewis W. Fleischmann
CPC分类号： G05D21/02 , A61M16/12 , A61M16/204 , Y10T137/2322 , Y10T137/7761
摘要： Partial pressure of oxygen in a closed gas-containing system is controlled automatically. Unique electro-mechanical transducers employ electric meter movements to vary the angle of a surface in a jet of gas in response to a signal from an oxygen sensor, thereby to vary the direction of the jet and the stagnation pressure in a receiver. The kinetic energy of the jet is maintained constant irrespective of ambient pressure by a constant differential pressure regulator. A pneumatically operated servo valve responsive to the stagnation pressure in the receiver controls the admission of oxygen to the system.
摘要翻译： 自动控制封闭含气体系统中的氧气的部分压力。 独特的机电换能器响应于来自氧传感器的信号而使用电表运动来改变气体射流中的表面的角度，从而改变射流的方向和接收器中的停滞压力。 无论环境压力如何，通过恒定的压差调节器，射流的动能保持恒定。 响应于接收器中的停滞压力的气动伺服阀控制氧气进入系统。
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公开(公告)号：US3924619A
公开(公告)日：1975-12-09
申请号：US42904673
申请日：1973-12-28
CPC分类号： B63C11/34 , B63C11/24 , Y10T137/6525
摘要： Method and apparatus entailing an underwater breathing system in which (1) a continuously flowing supply of reconditioned gas is supplied to a diver through flexible umbilical means extending from an underwater enclosure, in which (2) a return tank means receives gas from the umbilical means and a supply tank means supplies reconditioned gas to the umbilical means, in which (3) both the return tank means and supply tank means are located remote from the diver, and (4) in which a surface located source of breathable gas is continuously available.
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公开(公告)号：US3924616A
公开(公告)日：1975-12-09
申请号：US42904473
申请日：1973-12-28
摘要： Method and apparatus entailing an underwater breathing system in which (1) a continuously flowing supply of reconditioned gas is supplied to a diver through flexible umbilical means extending from an underwater enclosure, in which (2) a return tank means receives gas from the umbilical means and a supply tank means supplies reconditioned gas to the umbilical means, in which (3) both the return tank means and supply tank means are located remote from the diver, and (4) in which a surface located source of breathable gas is continuously available.
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公开(公告)号：US3850171A
公开(公告)日：1974-11-26
申请号：US36078873
申请日：1973-05-16
申请人： VICKERS LTD
CPC分类号： A62B18/00 , A61M16/06 , A61M16/127
摘要： A medical face mask for supplying gas/air mixture to a patient comprising a hollow body portion adapted to cover the nose and mouth of the patient and an inlet portion for adjustably supplying said gas/air mixture. The body portion includes an inlet opening and at least one outlet. The inlet portion of the mask comprises a venturi throat in communication with the inlet opening in the body portion and includes first and second apertured members, said second member is mounted to the inlet portion and has a plurality of apertures and a gas inlet means. Said first member is rotatably mounted to said second member and has a plurality of apertures adapted for the selective registry with said apertures in said second member.
摘要翻译： 一种用于向患者供应气体/空气混合物的医用面罩，包括适于覆盖患者的鼻子和口部的中空本体部分和用于可调节地供应所述气体/空气混合物的入口部分。 主体部分包括入口开口和至少一个出口。 掩模的入口部分包括与主体部分中的入口连通的文丘里喉部，并且包括第一和第二有孔构件，所述第二构件安装到入口部分并且具有多个孔和气体入口装置。 所述第一构件可旋转地安装到所述第二构件并且具有适于与所述第二构件中的所述孔选择性对准的多个孔。
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