Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7497666 | Pressure exchange ejector A novel pressure-exchange ejector is disclosed whereby a high energy primary fluid transports and pressurizes a lower energy secondary fluid through direct fluid-fluid momentum exchange. The pressure-exchange ejector utilizes non-steady flow principles and both supe... | 03/03/2009 |
| 7048514 | Downhole jet unit for testing and completing wells The invention relates to pumping engineering, mainly to downhole jet production units. The inventive downhole jet unit comprises a packer, a pipe column and a jet pump. An active nozzle and a mixing chamber are axially arranged in the body of the jet pump, and a pas... | 05/23/2006 |
| 6955526 | Vacuum generator with flow switching means for varying suction capacity through a plurality of nozzles The vacuum generator is capable of quickly and securely holding and releasing a work piece and capable of reducing amount of consuming compressed air. In the vacuum generator, a first nozzle and a second nozzle jet compressed air toward a diffuser nozzle. The second... | 10/18/2005 |
| 6935845 | Plurality of vacuum generation units A plurality of vacuum producing units capable of being employed together or independently of each other, each have a housing. The housing is internally provided with at least one ejector receiving means fitted with an ejector insert. The housings have the same trans... | 08/30/2005 |
| 6851936 | Vacuum producing device A vacuum producing device having an ejector means with a jet nozzle and a receiving nozzle downstream from it. At the outlet end of the receiving nozzle there is a receiving space for the fluid flowing through the receiving nozzle and an exit flow duct extends from ... | 02/08/2005 |
| 6786700 | Vapor evacuation device A vapor evacuating device that enables product offloaders to quickly, easily, and safely offload chemicals and the associated vapors from vessels with minimal environmental impact and inconvenience by combining vapors from a tanker vehicle with an evacuation fluid, ... | 09/07/2004 |
| 6729851 | Vacuum generating device A vacuum generating device, fabricated in the form of an ejector pump stack and used for generating negative pressure in an absorption unit, such as an absorption pad of a vacuum feeding system, is disclosed. The vacuum generating device includes a plurality of ejec... | 05/04/2004 |
| 6729852 | Vacuum producing device A vacuum producing means having a housing (2) with an inlet connection (4) and a suction connection (6) arranged opposite to same. The housing (2) comprises a suction nozzle means (16) and a gage pressure pulse means (35) ar... | 05/04/2004 |
| 6582199 | Multi-stage ejector pump A multi-stage ejector pump having an ejector nozzle system with the nozzles situated coaxially behind each other and axially set apart from each other by a spaced distance. The ejector a nozzle system is made up of a set of individual nozzles and nozzle s... | 06/24/2003 |
| 6575705 | Jet pump throat pipe having a bent discharge end A jet pump has a jet nozzle that discharges an operating fluid, a chamber into which a transfer fluid flows and which encloses the end of the jet nozzle, a throat pipe having a constriction portion and a jet nozzle through which the transfer fluid that fl... | 06/10/2003 |
| 6364625 | Jet pump comprising a jet with variable cross-section The present invention relates to a jet pump, in particular for transferring fuel in a motor vehicle fuel tank, the pump being characterized by the fact that it comprises a main nozzle (20) and a core (30) mounted to move relative to the outlet bore of the... | 04/02/2002 |
| 6270321 | Suction jet pump A sucking jet pump has a tubular casing 1, in which two flow channels 10, 24 are formed. The first flow channel 10 is the sucking jet pump and the second flow channel 24 is a bypass. The first flow channel 10 is formed by a tube 9 which is integrally form... | 08/07/2001 |
| 6224345 | pressure/vacuum generator A pressure/vacuum generator is established by coupling the pressure port of a vacuum generator to an air pressure source while coupling a valve in fluid communication with the exhaust port of the vacuum generator. When the valve is in a normally open cond... | 05/01/2001 |
| 6171069 | Jet pump having a movable piston A refrigeration unit having a jet pump with an automatically adjustable cross-section for the control of refrigerant flow that provides a more economical refrigeration process. The circulation of thermotransfering materials, such as a refrigerant, through... | 01/09/2001 |
| 6155796 | Ejector for generating negative pressure The present invention relates to an ejector for generating negative pressure having a pressure connection discharging into a propellant nozzle, and having a suction connection which discharges via a suction conduit into a receiver nozzle. The propellant n... | 12/05/2000 |
| 6149395 | Suction pulsator A suction pulsator (1) used to periodically generate a vacuum in a container connected to it, especially in a collection container for mother's milk, which is provided with a suction funnel. A central nozzle hole (25) of a nozzle body (20) is provided, wh... | 11/21/2000 |
| 6017195 | Fluid jet ejector and ejection method An improved vacuum apparatus and method is provided which includes a vacuum body, pump or ejector which produces a plurality of high velocity liquid jet streams of a primary fluid (liquid) such as water discharged into a convergent diffuser to draw a seco... | 01/25/2000 |
| 5954481 | Jet pump A jet pump includes a sucking jet pump with a flow duct having a decreasing cross section and a suction pipe insert which is inserted therein, a bypass arrangement and a valve arrangement, which form a construction unit, where the sucking jet pump has a n... | 09/21/1999 |
| 5810563 | Ejector pump having flow directing profiles An ejector pump for the transport of materials or mixtures of materials capable of flowing with the aid of a fluid driving medium is provided. The ejector pump includes at least one flow management profile which is placed in the flow channel of the ejecto... | 09/22/1998 |
| 5624239 | Portable pneumatic vacuum source apparatus and method A portable pneumatic vacuum source includes a source of pressurized fluid and a vacuum pump in fluid connection with the pressurized fluid source, the vacuum pump operative to generate a vacuum in response to pressurized fluid flow therethrough. A nozzle ... | 04/29/1997 |
| 5584668 | Multistage ejector pump for radial flow A multi-stage ejector pump for suction or for moving materials with the help of a working fluid within one housing is provided. The pump is designed for radial flow and includes at least one inlet for the working fluid, at least one inlet for the material... | 12/17/1996 |
| 5577893 | Apparatus for vacuum absorption having reverse flow protection mechanism An apparatus for vacuum absorption is provided which is quiet and simplified with maintaining an absorption power. The apparatus comprises: a tank for accumulating circulating water; a waterway for circulating the circulating water by a pump disposed at a... | 11/26/1996 |
| 5167273 | Aspirator tube check valve assembly and method of continuously sensing vehicular interior compartment air temperature An interior air temperature sensing system is provided for use with a vehicle interior compartment air temperature regulating system including an ambient air inlet duct, a blower housing connected to an air inlet duct and an air temperature modifier and a... | 12/01/1992 |
| 5002465 | Off-on control for an inflation aspirator In an aspirator (10) for pumping air into an inflatable (16), initial delivery of an aspirating fluid extends a piston (68) and the piston (68) extends an aspirator tube (24) to open an ambient air inlet (30) and render the aspirator (10) operable. Aspira... | 03/26/1991 |
| 4990060 | Air pump with secondary air inlet An air pump for inflating an inflatable article includes a multi-stage centrifugal compressing section for inhaling and compressing primary air and a secondary air inhaling mechanism provided downstream of the multi-stage centrifugal compressing section. ... | 02/05/1991 |
| 4938665 | Jet pump A jet pump for the suction and/or conveyance of flowable materials or mixtures of materials by means of a liquid or gaseous propellant medium consists of a housing with inlets (28, 64) as well as a common outlet or discharge (30). A flow passage (44) in t... | 07/03/1990 |
| 4917152 | Fluid injector A fluid injector consisting of an airfoil cross-sectioned rectangular plate mounted on and perpendicular to a pivoted hollow tube and suspended within a flowing stream of fluid into which another or the same type of fluid is to be injected through the tub... | 04/17/1990 |
| 4880358 | Ultra-high vacuum force, low air consumption pumps Air-operated vacuum pump assemblies are disclosed which provide a maximum vacuum force and a large vacuum flow per volume of air consumption. The present venturi pump assemblies comprise one or more solid ejector housings each having a single longitudinal... | 11/14/1989 |
| 4865521 | Vacuum breaking device for ejector pump A vacuum breaking device for an ejector pump is provided. The vacuum breaking device according to the present invention features that it is provided with a movable sealing valve for blocking the outlet port of the ejector hole of the pump when a vacuum ge... | 09/12/1989 |
| 4838953 | Adjustable oil ejector An oil ejector for conveying a quantity of oil under pressure to a region to be lubricated, the including a nozzle member (4,18) having an inlet end for receiving a supply of oil under pressure and an outlet end for ejecting oil supplied to the inlet end,... | 06/13/1989 |
| 4402651 | Vacuum generating device A device for obtaining a vacuum by jetting compressed air characterized in that compressed air, that is, a vacuum state can be switched by changing the internal member fitting position so as to be in a form in response to the use and the manufacture is ve... | 09/06/1983 |
| 4245961 | Ejector utilizing a vortex flow An improved ejector utilizing a vortex flow for pumping a fluid. The ejector includes a funnel shaped fluid chamber circumscribing a longitudinal axis and converging from a wide end to a narrow end. A venturi-like throat circumscribing the longitudinal ax... | 01/20/1981 |
| 4165571 | Sea sled with jet pump for underwater trenching and slurry removal The sea sled includes a pair of pontoons mounting depending rollers for straddling a pipeline disposed on the sea bottom. Water jets fluidize the sea bottom to form a trench in which the pipeline settles. The slurry formed by the water jets is removed fro... | 08/28/1979 |
