Bizarre Patents
An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6418955 | Multiple feed powder splitter A device for providing uniform powder flow to the nozzles when creating solid structures using a solid fabrication system such as the directed light fabrication (DLF) process. In the DLF process, gas entrained powders are passed through the focal point of... | 07/16/2002 |
| 6401741 | Excess flow shut-off valve An excess flow shut-off valve has a body with a flow passageway therethrough. A closure ball is rotatably supported within the body and has a flow passageway therethrough. The ball has a first rotational position in which the ball passageway is in alignme... | 06/11/2002 |
| 6382228 | Fluid driving system for flow cytometry A fluid driving system for portable flow cytometers or other portable devices that accepts a less precise and less stable pressure source, and then adjusts the pressure in a closed-loop manner to maintain a constant, desired flow velocity. The fluid drivi... | 05/07/2002 |
| 6019115 | Safety excess flow valve system with adjustable closing flow rate settings The present invention relates to an excess flow valve system having a sliding poppet within a chamber with an orifice at one end, wherein the closing flow rate settings can be adjusted. Precise adjustments can be made externally by turning a threaded memb... | 02/01/2000 |
| 5960807 | Vibration and flow actuated valve shutoff system An automatically actuated regulation system for a natural gas pipeline having flow control unit, a vibration sensor, a gas flow meter, a trigger unit, and a microprocessor. The microprocessor actuates the flow control unit when two conditions are met. Fir... | 10/05/1999 |
| 5812423 | Method of determining working media motion and designing flow structures for same The working media, e.g., fluid or gaseous will be motioned in a restricted space, e.g., in a piping by adding velocity to the same. While prior to the working media motion the wavelength of the motioned working media dynamic processes will be calculated t... | 09/22/1998 |
| 5720313 | Flow rate control system A system for controlling the rate of flow of a liquid in a liquid flow system, especially a system for controlling the rate of flow of treated water in a municipal water treatment and pumping system, the flow control system utilizing a venturi (10) having... | 02/24/1998 |
| 5718255 | Flow-responsive diverting valve A flow-responsive diverting valve is particularly useful with pressure washers of the type having a water pump coupled to an internal combustion engine equipped with a pull-rope starter. The valve provides an "easy-start" feature and has a valving chamber... | 02/17/1998 |
| 5709239 | Automatic shut-off safety device A compact, automatic mechanical fluid shut-off device which can detect a sustained leak in a pipe as well as a pipe burst and automatically shuts off fluid flow in the pipe. The device is detachable, easy to install, and easy to retrofit into existing pip... | 01/20/1998 |
| 5660198 | Flow compensated pressure control system A control system is provided for monitoring and regulating fluid pressure at a remote and/or potentially hazardous location along the length of a fluid flow conduit, without requiring a pressure sensor device at the remote site. The control system compris... | 08/26/1997 |
| 5609178 | Pressure-actuated valve and method A downhole valve 10 opens or closes a bypass (12,13) in response to the pressure of the fluid in the valve. The valve housing body 14 is adapted for fluid communication with a tubular within a well bore. The valve bypass may be repeatedly cycled from open... | 03/11/1997 |
| 5455076 | Method and apparatus for proportioning and mixing non-compressible and compressible fluids The present invention is directed to methods and apparatus for effectively proportioning a mixture of compressible and non-compressible fluids, wherein the resulting mixture has an almost constant density. The present invention is particularly useful for ... | 10/03/1995 |
| 5304390 | Supercritical ratio control system utilizing a sonic flow venturi and an air-driven positive displacement pump A process for delivering a predetermined ratio of a compressible fluid and a non-compressible fluid which comprises the measurement of only the flowrate of the compressible fluid, the activation of an air-driven positive displacement pump at appropriate t... | 04/19/1994 |
| 5129414 | Expansible chamber device having variably restrained valve systems In accordance with an illustrative embodiment of the present invention, an expansible chamber device includes a piston movable within a cylinder, a head on the cylinder having intake and exhaust ports, a normally-open intake valve for closing the intake p... | 07/14/1992 |
| 4736763 | Automatic device for the detection and shutoff of unwanted liquid flow in pipes A pipe flow detector for activating a solenoid to automatically close a pipe shutoff valve in the event of a leak. The detector comprises a piezoelectric film transducer attached to the pipe, the transducer producing a fluctuating electrical signal in res... | 04/12/1988 |
| 4643213 | Method and apparatus for controlling leaks in pressurized fluid systems Method and apparatus for controlling fluid leakage from sections of a pressurized fluid system adapted to provide fluid at line pressure to equipment associated therewith includes means for sensing first and second conditions indicative of non-use and of ... | 02/17/1987 |
| 4625744 | Process and device for performing a series of hydrodynamic functions on a flow comprised of at least two phases A process for performing a series of hydrodynamic functions or operation on a flow of fluids comprised of at least two phases includes the following steps: separating the fluid phases that comprise the initial flow; reducing the turbulence of the flows of... | 12/02/1986 |
| 4569012 | Method and system for controlling fluid transportation in a pipe network Method and system for controlling fluid transportation in a pipe network are disclosed. Pressures and flow rates at a predetermined number of points in the pipe network which number is smaller than the number of demand nodes in the pipe network are detect... | 02/04/1986 |
| 4539967 | Duty ratio control method for solenoid control valve means A method of controlling the duty ratio of operation of a solenoid control valve in a fluid passage to control the flow rate of fluid in the fluid passage to a desired value. A flow rate value range is divided into a plurality of flow rate value regions be... | 09/10/1985 |
| 4458709 | Method and apparatus for measuring and controlling fluid flow rates To measure the flow rate of a fluid in a pipe, a heat pulse is injected into the fluid by a heat pulse generator, and the time of flight of the pulse between the generator and a sensor is measured. Arrival of the pulse at the sensor is determined by detec... | 07/10/1984 |
| 4327759 | Slurry producing apparatus Apparatus and method for producing a slurry. The apparatus includes a slurry reservoir, a closed circuit and a pump for circulating slurry from the reservoir through the closed circuit and back to the reservoir. Means are provided for introducing both par... | 05/04/1982 |
| 4275752 | Fluid flow apparatus and method Apparatus for combining fluid flows in variable proportions is adapted for blending an active constituent gas and a diluent gas to calibrate gas analyzers used in monitoring pollution. Diluent gas passes from source 34 through a downstream differential pr... | 06/30/1981 |
| 4228815 | Measurement and control of multicomponent liquid systems The method is based on the fact that the particular components are conveyed through separate pipes into a mixing chamber. By measuring the transit time in at least one of the pipes the flowrate can be measured. The flow in the other pipes which is in a fi... | 10/21/1980 |
| 4182354 | Method and apparatus for flow diversion in a high pressure fluid delivery system A method and apparatus for the diversion of fluid flow at reduced pressure out of a high pressure fluid delivery system when the discharge of the system is closed. A bypass valve having a movable piston oriented transverse to the flow direction and a slid... | 01/08/1980 |
