F04F 3 - Pumps using negative pressure acting directly on the liquid to be pumped

Patents for F04F 3 - Pumps using negative pressure acting directly on the liquid to be pumped (370)
01/2015
01/21/2015	CN204113770U 一种真空抽水泵 A vacuum pumps
12/2014
12/31/2014	CN204061351U 一种负吸桶补液装置 One kind of negative suction barrel infusion device
10/2014
10/14/2014	US8858190 Steam powered pump
07/2014
07/23/2014	CN203730417U 物料釜真空过滤吸油装置 Suction vacuum filtration device materials kettle
07/16/2014	CN203717470U 一种新型真空隔离式负压吸力机构 A new vacuum-isolated vacuum suction mechanism
07/10/2014	DE102012103643B4 Handpumpen-Gasdurchflusskanalanordnung für eine Flüssigkeitsansaug- und -ausgabevorrichtung Hand pump gas flow channel arrangement for a liquid suction and dispensing
07/09/2014	CN203702675U 自动排水装置 Automatic drainage device
06/2014
06/25/2014	CN203670311U 一种移动式气动吸水机 A mobile pneumatic suction machine
05/2014
05/28/2014	CN203614471U 简易抽油装置 Simple Oil Rig
05/14/2014	EP2729367A1 Separation and return system for foodstuffs
05/14/2014	CN101818751B 多功能负压式吸喷机 Multifunction negative pressure suction spraying machine
04/2014
04/23/2014	CN103742455A Liquid transfer device
04/01/2014	US8684031 Apparatus for conveying a waste stream
03/2014
03/26/2014	CN203500135U Mother liquid recovery device
03/18/2014	US8672639 Bilge pump and method
03/12/2014	CN203476842U Vacuum oil absorbing trolley
03/05/2014	CN203463379U Coating negative pressure water suction device
02/2014
02/12/2014	CN203428904U Multifunctional blowing and suction device
01/2014
01/08/2014	CN203384130U Safe solvent oil pumping device
12/2013
12/12/2013	WO2013182731A1 Method and apparatus for lifting of a mass of water
11/2013
11/20/2013	CN203297167U Simple negative-pressure oil gun
10/2013
10/23/2013	CN203248415U Vacuum port tube of vacuum generator
10/02/2013	CN203223427U Small type sewage reflux apparatus driven by air
09/2013
09/17/2013	US8535018 Balancing liquid pumping system
07/2013
07/18/2013	US20130180596 Vacuum system
07/03/2013	CN203035625U Pneumatic hoister
07/02/2013	CA2562459C Liquid aspirator
06/2013
06/11/2013	US8459299 Fluid control apparatus
06/05/2013	CN202971351U Vacuum pumping buffer tank
05/2013
05/29/2013	CN202955048U Vortex type negative pressure imbibition device
05/22/2013	CN103115026A Vacuumizing device
05/15/2013	CN202937521U Vacuum water pumping device
05/01/2013	CN202914412U Aerodynamic force automatic salt pump
05/01/2013	CN202914411U Liquid pump drainage device of piston vacuum pump
03/2013
03/27/2013	CN202833341U Vacuum water taking device without pump
03/27/2013	CN202833340U Negative pressure vacuator
03/27/2013	CN102996530A Vortex type negative pressure liquid absorbing device
03/13/2013	CN202789765U Negative pressure suction device
03/07/2013	US20130056102 Vacuum Sizing Tank with Electro-Mechanical Controlled Water Flows
02/2013
02/27/2013	EP2561235A1 Vacuum pumped liquid cooling system for computers
01/2013
01/31/2013	WO2013013945A1 Separation and return system for foodstuffs
01/30/2013	CN202707639U Drawing device for groundwater
01/16/2013	CN102878120A Negative pressure automatic protection device
12/2012
12/05/2012	CN202579358U Vacuum priming device of wire drawing machine
12/05/2012	CN202579357U Novel staggered water suction device
12/05/2012	CN202579356U Negative pressure side line stable extracting device
11/2012
11/29/2012	US20120298230 Liquid Disposal System For Kitchen Safety
11/07/2012	CN101830541B Underground reverse-osmosis seawater desalination vacuum plant system
10/2012
10/31/2012	DE102012103643A1 Handpumpen-Gasdurchflusskanalanordnung für eine Flüssigkeitsansaug- und -ausgabevorrichtung Hand pump gas flow channel arrangement for a liquid suction and dispensing
10/30/2012	US8297311 Controlling gas partial pressures for process optimization
10/03/2012	CN202468490U Negative pressure sucking device for liquid
10/03/2012	CN202468489U Negative pressure imbibition device
10/03/2012	CN202468488U Pneumatic liquid pump
08/2012
08/29/2012	CN202402370U Oil pumping unit
08/16/2012	US20120207624 Liquid Water Removal Apparatus
08/08/2012	CN202370913U Solvent extracting device
07/2012
07/19/2012	US20120183415 Steam powered pump
07/04/2012	CN101988526B Bound pneumatic dredge pump
06/2012
06/20/2012	CN202280671U 开放容器负压虹吸器 Open container vacuum siphon
06/13/2012	CN202273924U 一种压力表真空充液系统 One kind of vacuum gauges filling system
05/2012
05/30/2012	CN202251137U Pneumatic exhaust device
05/30/2012	CN202251136U Liquid pumping and conveying device
05/23/2012	CN202228442U Water pumping pipe
05/10/2012	US20120114507 Balancing liquid pumping system
04/2012
04/19/2012	US20120090709 Apparatus for transferring incoherent or liquid material
04/19/2012	DE10240804B4 Schlammsauger Sludge Pump
04/18/2012	CN102418717A 一种地面废液吸取装置 A floor waste suction device
04/11/2012	CN202187964U 一种提供稳定负压并且自动排除液态水的系统 A method of providing stable vacuum and automatically exclude liquid water system
04/04/2012	CN202182068U 手动导液泵 Manual guide pump
03/2012
03/20/2012	US8137076 Method and system for raising a liquid using a pressurised gas and a buoyant, movable interface member
03/14/2012	CN202165329U 负压自动保护装置 Negative automatic protection devices
02/2012
02/22/2012	CN202149086U 电动燃油泵吸油装置 Electric fuel pump suction device
02/08/2012	CN202140354U 基板湿制程液体吸取器 Substrate wet process liquid sucker
01/2012
01/24/2012	US8100669 Micro-pump and micro-pump system
01/18/2012	CN202118010U Vacuum suction/discharge system for agricultural residue liquid suction transport machine
01/11/2012	CN202108794U Automatic water sucking device used in fixed place
12/2011
12/28/2011	CN102297164A 多管无轮泵 Multi-tube pump without wheels
12/28/2011	CN102297163A 一种用于u形渠的抽水装置和方法 A u-shaped drainage pumping apparatus and method for
12/07/2011	CN102269184A 一种提供稳定负压并且自动排除液态水的系统 A method of providing a stable negative pressure and automatically exclude liquid water system
11/2011
11/09/2011	CN202031891U Negative pressure device of copper melting liquid lifting pump
10/2011
10/27/2011	WO2011133265A1 Vacuum pumped liquid cooling system for computers
10/27/2011	US20110259455 Vacuum processing apparatus
10/05/2011	CN202001401U Automatic blockage removing device of wind suction negative pressure system
10/05/2011	CN202001400U Negative-pressure suction pump for solvent oil
10/05/2011	CN202001399U Bundled pneumatic mud absorbing pump
10/04/2011	US8032256 Liquid level control systems
09/2011
09/21/2011	CN102192051A Method and system of operating a fuel vapor recovering system and its engine system
09/14/2011	CN201972970U 抽油泵 Pump
08/2011
08/31/2011	CN101624999B Dangerous chemical leakage rescue equipment
08/03/2011	CN201916259U 一种塑胶生产储水池用抽水装置 One kind of plastic production tanks with a pumping device
07/2011
07/20/2011	CN102128182A Method for collecting water conservancy energy and gas-liquid one-way valve combination unit
06/2011
06/15/2011	CN201865990U Household pumping device
06/08/2011	EP2329151A1 Pump installation
04/2011
04/27/2011	CN201810595U Relay type negative-pressure submersible pump
04/20/2011	CN101463840B Negative pressure pump
04/13/2011	CN201794839U Vacuum slag pumping system
03/2011
03/30/2011	CN201779078U Novel outdoor sewage pump system
03/23/2011	CN101988526A Bound pneumatic dredge pump
03/02/2011	CN201753710U Vacuum oil suction apparatus for hydraulic pressure valve body
02/2011
02/09/2011	CN201739242U Vacuumizing diversion device for sewage pump

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