Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7007456 | Dual chamber pump and method Disclosed is a pneumatically powered high-pressure and lightweight fluid pump. The pump is useful for pumping fuel for liquid rocket engines and for pumping water, such as for fire suppression. During operation of the pump, liquid is drained from a tank into a pump ... | 03/07/2006 |
| 6810961 | Fluid well pumping system A fluid well pumping system includes at least one stage for removing fluid from a well. The at least one stage includes a product line assembly adapted for positioning in the well casing as a unit. The product line assembly includes a first product tube and first an... | 11/02/2004 |
| 6537032 | Load dependent variable speed hydraulic unit There is provided an autonomous inverter-driven hydraulic unit in which a command pressure and command flow rate do not need to be inputted from outside and a pressure and flow rate can be autonomously controlled without requiring any input signal wire. A... | 03/25/2003 |
| 6435838 | Fluid well pump A fluid pumping system includes a number of stages. Each stage has a fluid chamber having a top end with an air aperture and a bottom end with a fluid apertures. An air line is connected to the air aperture, and a fluid input conduit, with an input check ... | 08/20/2002 |
| 6036446 | Fluid transfer with concurrent system movement for liquid and vacuum A portable system of inter-connected smaller and larger canisters for near simultaneous vacuum and liquid transfer free from any external power. Captured vacuum in the canisters is employed for waste liquid extraction and a subsequent pressure transfer ma... | 03/14/2000 |
| 5660530 | Pump system for biasing seals of a centrifugal pump Pumping under the present invention includes movement of material, in a first embodiment fluid and in a second embodiment a piston assembly, between first and second positions including detection of said material at each position. Control circuitry and su... | 08/26/1997 |
| 5584179 | Pumping machine and generator system utilizing the same A pumping machine is disclosed which comprises valve means and air intakes, the valve means comprising a plurality of check valves and having a double-layer structure, the valve means being caused to vertically reciprocate by delivery of compressed air, t... | 12/17/1996 |
| 5368447 | Well testing or production facility transfer system The present invention discloses a method and apparatus for a well testing or production facility system. More particularly, but not by way of limitation, the invention discloses a method and apparatus to transfer crude oil from a separator to an oil pipel... | 11/29/1994 |
| 5290151 | Process for pumping a multi-phase gas-liquid mixture by means of the use of a pump A process is disclosed, for pumping a multi-phase gas-liquid mixture by using a pump as the thrusting machine, and at least two pumping vessels alternatively performing functions of intake and functions of compression/delivery.... | 03/01/1994 |
| 5261794 | Fluid pressure feeding apparatus A fluid pressure feeding apparatus for feeding cold water for cooling a mining pit into the pit and pumping water and muddy water heated within the mining pit onto the ground. A controller for switching a number of the operative chambers is provided to th... | 11/16/1993 |
| 5242272 | Method and device for pumping a liquid at high temperature through a pipe Procedure for pumping liquid at high temperature through a pipe, characterized in that the liquid at high temperature is pressed, by means of a fluid at low temperature that is inert in relation to the liquid at high temperature, away out of a first reser... | 09/07/1993 |
| 4846800 | Two chambered autotransfuser device and method of use An autotransfuser includes, in a single receptacle, a pair of chambers separated by a common wall. Each receptacle can alternately perform a blood infusion or blood collection function. Each chamber includes at least three inlets/outlets, a blood inlet, a... | 07/11/1989 |
| 4778532 | Process and apparatus for treating wafers with process fluids Contamination of wafers is reduced by an enclosed full-flow method and apparatus for the cleaning and other wet processing of semiconductor wafers. Process fluids flow sequentially and continuously past the wafers such that the processing does not require... | 10/18/1988 |
| 4655691 | Temperature-difference-actuated pump employing nonelectrical valves A temperature-difference-actuated pump is disclosed which does not require the use of electrically operated solenoid valves or the like, making the inventive pump especially useful in locations where electricity is not readily available. Either one or two... | 04/07/1987 |
| 4336763 | Marine vessel transfer system An automatic pneumatic pumping system of the type using two or more pumping tanks which are filled in alternate sequence with liquid from a common source and are alternately purged by air pressure so as to effect a continuous and uninterrupted flow of the... | 06/29/1982 |
| 4140437 | Apparatus for the long distance conveying of liquids mixed with solid substances using a compressed air pump An apparatus for conveying liquids mixed with solid substances to a distance is disclosed, comprising a compressed air pump formed by two or more cylindrical chambers, each provided with an inlet valve for the liquid and with a connection for the inlet an... | 02/20/1979 |
| 4094616 | Steam-heater-pump A device using only steam to simultaneously heat and pump a liquid or a slurry to a high pressure is disclosed, which device does not employ any rotating or reciprocating mechanisms commonly employed in the conventional pumping machinery. The combined use... | 06/13/1978 |
| 3994082 | Air operated dredging apparatus Air operated dredging apparatus comprising a submerged pumping unit adapted to be dragged along an underwater bed which unit includes at least two pumping chambers periodically filled with loose material in admixture with water entering the chamber throug... | 11/30/1976 |
| 3958346 | Multiple pumping chamber dredging apparatus An improved dredging apparatus comprising a plurality of pumping chambers, each pumping chamber having a separate inlet pipe branched off from a single intake duct, the intake duct in turn being either connected to the dredging shovel or directly adapted ... | 05/25/1976 |
