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公开(公告)号:US4065230A
公开(公告)日:1977-12-27
申请号:US625581
申请日:1975-10-24
申请人: Walter A. Gezari
发明人: Walter A. Gezari
CPC分类号: F04B9/1378 , A61M5/1422 , F01L25/063 , F01L25/066 , F04B7/0216 , A61M2005/14513
摘要: A reciprocating infusion pump is presented having a pair of syringes activated by individual actuating cylinders. The actuating cylinders are interconnected with a hydraulic fluid, and the cylinders and alternately pneumatically actuated whereby the cylinders alternately act as drive and follower cylinders whereby one syringe delivers fluid to a patient while the other is refilled from a reservoir. A directional adapter set is affirmatively actuated in synchronism with the actuating cylinders to control the direction of fluid flow from the reservoir to the syringes and from the syringes to the patient.
摘要翻译: 呈现往复式输液泵,其具有由单个致动缸激活的一对注射器。 致动气缸与液压流体和气缸相互连接并且交替地气动地致动,由此气缸交替地作为驱动和从动气缸,由此一个注射器将流体输送到患者,而另一个从储存器再填充。 方向适配器组被确定地与致动气缸同步地致动,以控制流体从储器到注射器以及从注射器到患者的流动方向。
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公开(公告)号:US5024584A
公开(公告)日:1991-06-18
申请号:US277870
申请日:1988-11-30
申请人: Giorgio Bordini , Maurizio Vincenzi
发明人: Giorgio Bordini , Maurizio Vincenzi
CPC分类号: F04B49/12 , F04B9/1378 , Y10S417/90
摘要: A pump unit comprising co-operating, push-pull connected reciprocating pumps for the pumping in portions of contents to packing containers on a packing machine. The reciprocating pumps (1) each comprise a control piston (4) connected to the pump piston (6) in control cylinders (18), which are joined together in pairs by means of a connecting pipe (20). The pipe is provided with a flow regulating valve (21) for regulating the flow rate of the hydraulic oil and hence the piston speed. The quantity of hydraulic oil in the connecting pipe can be regulated with the help of a supply tank (23) so that the length of stroke of the pistons can be adjusted.
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公开(公告)号:US3718409A
公开(公告)日:1973-02-27
申请号:US3718409D
申请日:1970-10-09
申请人: ARO CORP
发明人: BRANDENBERG K , KAUTZ W
CPC分类号: F04B7/04 , F01L25/063 , F04B9/1378
摘要: First and second reciprocating pumps are adapted to pump fluid continuously from a fluid source to a fluid output manifold. The control system operates the pumps maintaining at least one of them always in the pumping cycle. The control system includes a flip-flop circuit utilizing pneumatic accumulators, NOT logic elements and restrictors. Pneumatically operated drive pistons and associated cylinders are provided to control the reciprocating pumps.
摘要翻译: 第一和第二往复泵适于将流体从流体源泵送到流体输出歧管。 控制系统操作泵,其中至少一个泵始终处于泵送循环中。 控制系统包括利用气动蓄能器的触发器电路,非逻辑元件和限制器。 提供气动驱动的活塞和相关联的气缸来控制往复泵。
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公开(公告)号:US3516761A
公开(公告)日:1970-06-23
申请号:US3516761D
申请日:1968-10-10
发明人: SCROGGINS ELVA J
CPC分类号: F04B53/126 , F01L25/063 , F04B9/1315 , F04B9/1378
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公开(公告)号:US2890658A
公开(公告)日:1959-06-16
申请号:US59699956
申请日:1956-07-10
发明人: GEORG HJARPE ERIC
IPC分类号: F04B9/137
CPC分类号: F04B9/137 , F04B9/1378
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