Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7549911 | Media control valve with pressure balance loop A media control valve includes a valve body having a media inlet and a media outlet with the valve body being adapted to be mounted on a flow device for providing communication between the media outlet and the flow device. A pressure balance flow line is provided in... | 06/23/2009 |
| 7418978 | Methods and apparatus for providing fluid to a semiconductor device processing apparatus In a first aspect, a valve assembly is provided that includes a valve assembly output adapted to output at least one of DI water and a chemical. A first valve of the valve assembly includes (1) a first input adapted to receive the chemical; (2) a first output adapte... | 09/02/2008 |
| 7300336 | Media control valve The present invention is related to valves for the controlling the flow of media. For example, the valves of the present invention may control the flow of solid media into a fluid stream. More, specifically, the valves of the present invention may be used to control... | 11/27/2007 |
| 7291058 | Method and apparatus for improving media flow The flow of media in shot peening, blast cleaning, and similar equipment is improved by applying a time varying magnetic field to the media to thereby degauss the media, allowing the media to flow through equipment without clogging and clumping due to magnetic attra... | 11/06/2007 |
| 7222640 | Switching fluid flow by diversion A flow of fluid is switched on and off by diverting the flow to an alternative path. In a preferred application an abrasive cutting jet, formed by a flow of abrasive slurry fed via a conduit to a cutting jet nozzle, is switched on and off by diverting the flow at a ... | 05/29/2007 |
| 7188786 | Hose-end sprayer assembly A hose-end sprayer assembly connectable to at least one container of product to be dispensed has an elongated housing for a venturi tube assembly rotatable about its central axis and devised to selectively open and close a product inlet opening as well as its associ... | 03/13/2007 |
| 7163449 | Hand held abrasive blaster A hand held abrasive blaster includes a tubular wand housing and an abrasives conduit which extends into the wand housing. The abrasives conduit includes a fixed portion at the rearward end and a rotatable portion at the forward end. A motor rotates the rotatable po... | 01/16/2007 |
| 7118049 | Hose-end sprayer assembly A hose-end sprayer has a selectively rotatable rotary valve received within the transverse bore of a housing which includes a carrier liquid inlet passage, a chemical liquid inlet passage and a discharge passage. The valve has a carrier liquid duct and a chemical li... | 10/10/2006 |
| 7108585 | Multi-stage abrasive-liquid jet cutting head A multistage abrasive-liquid jet cutting head comprising at least a first and a second mixing stage. Within the first mixing stage is a first mixing chamber arranged to accept a first flow of accelerated abrasive particles from a first abrasive feed tube and a press... | 09/19/2006 |
| 7101265 | Universal improved particulate matter delivery device The present invention includes an apparatus for delivery of pressurized particulate matter against a surface or target to abrade, texture, sandblast, etch, erase, cut, penetrate, smooth, clean, polish, harden and/or deburr the surface or target. The invention is exp... | 09/05/2006 |
| 7101266 | Abrasive blasting device An abrasive blasting device provides for both “cold” and “hot” processing. It includes a nozzle gun, an abrasive vessel, a batcher, an ejection-type mixer, a fuel tank, and a receiver. The nozzle gun includes a combustion chamber (108), a tubular elem... | 09/05/2006 |
| 7094135 | Abrasivejet cutting head with back-flow prevention valve An abrasivejet cutting head is disclosed that includes a valve assembly for preventing back-flow to the abrasive hopper of abrasive-laden fluid from the cutting head when the discharge path for the abrasivejet becomes clogged or otherwise blocked. The valve assembly... | 08/22/2006 |
| 7033256 | Abrasive fluid jet machining apparatus A valve for controlling a flow of abrasive particles suspended in a pressurized carrier fluid has at least two apertured valve seats (74, 75) in face to face contact. One of the valve seats (74, 75) may be slid between a first position in which the ape... | 04/25/2006 |
| 6997780 | Method and device for sandblasting, especially removing in a precise manner and/or compacting and/or coating solid surfaces The invention relates to a method and device for sandblasting, especially removing in a precise manner and/or compacting and/or coating solid surfaces, such as removing defective spots of paint from coats of lacquer, smoothing out soldered and welded joints, removal... | 02/14/2006 |
| 6955589 | Delivery system for magnetorheological fluid A magnetorheological fluid delivery system includes a mixing and tempering vessel. Fluid is admitted to the vessel via a plurality of tangential ports, creating a mixing of the fluid in the vessel and promoting homogeneity. Fluid may be reconstituted in the vessel b... | 10/18/2005 |
| 6932670 | Signaling system for sandblasting A sandblasting operation includes a nozzle (10) which receives sand from a pot (12). A signaling system (20) for the sandblasting operation includes a first switch (22) to initiate the operation and a second switch (24) located at ... | 08/23/2005 |
| 6910957 | Method and apparatus for high pressure article cleaner A cleaning system 210 having nozzle assembly 10 for a pressured fluid stream entrained with abrasive that includes a pressured fluid receiving portion 15 adapted to accommodate a pressured fluid dispenser 20. An abrasive entrainment chamb... | 06/28/2005 |
| 6893322 | Method and apparatus for measuring and controlling solids composition of a magnetorheological fluid A system for dispensing magnetorheological fluid to an MR finishing machine includes a pump for pressurizing the system; a first magnetic valve for regulating MR fluid flow by magnetically varying the structure and apparent viscosity of the fluid through a first flo... | 05/17/2005 |
| 6875084 | Method for fluid jet formation A method and apparatus for controlling the coherence of a high-pressure fluid jet directed toward a selected surface. In one embodiment, the coherence is controlled by manipulating a turbulence level of the fluid forming the fluid jet. The turbulence level can be ma... | 04/05/2005 |
| 6854484 | Valve for a slurry outlet opening of a chemical mechanical polishing device and chemical mechanical polishing device having a valve A valve for a slurry outlet opening in an installation for chemical mechanical polishing, in particular of semiconductor wafers in DRAM production, includes an elastic diaphragm, which covers the slurry outlet opening and has at least one self-closing opening. It is... | 02/15/2005 |
| 6755725 | Method and apparatus for fluid jet formation A method and apparatus for controlling the coherence of a high-pressure fluid jet directed toward a selected surface. In one embodiment, the coherence is controlled by manipulating a turbulence level of the fluid forming the fluid jet. The turbulence level can be ma... | 06/29/2004 |
| 6729942 | Dental abrasion system The present invention provides a portable dental system for use in areas having inadequate sources of power, either for human or for veterinary dentistry. The system provides one or more handpieces, each driven driven by a pressurized nitrogen gas contained in a por... | 05/04/2004 |
| 6607175 | Media control valve The present invention is related to valves for the controlling the flow of media. For example, the valves of the present invention may control the flow of solid media into a fluid stream. More, specifically, the valves of the present invention may be used... | 08/19/2003 |
| 6383303 | High volume fluid head An apparatus for spraying a liquid on the surface of assemblies that are moving through wash and rinse stations. The apparatus of the invention comprises a liquid box that contains a liquid supply vessel in addition to containing a liquid nozzle wherein a... | 05/07/2002 |
| 6354924 | Particulate matter delivery device commercial unit The present invention includes an apparatus for delivery of pressurized particulate matter against a surface or target to abrade, texture, sandblast, etch, erase, cut, penetrate, smooth, clean, polish, harden and/or deburr the surface or target. The inven... | 03/12/2002 |
| 6276993 | Fluid abrasive jets for machining The apparatus comprises a storage vessel (19) for abrasive particles, a source of pressurised carrier fluid and a first conduit (11) to convey at least a major proportion of the incoming carrier fluid to a nozzle (16). A second conduit (9) connects the so... | 08/21/2001 |
| 6250996 | Contained direct particle beam flow abrasion system Systems for abrasive action include machinery for creating a vacuum and positive pressure to enable flow control while providing adequate vacuum to both retrieve and capture the spent abrasive material and the abraded material. A first embodiment includes... | 06/26/2001 |
| 6238275 | Contained direct particle beam flow abrasion system Systems for abrasive action include machinery for creating a vacuum and positive pressure to enable flow control while providing adequate vacuum to both retrieve and capture the spent abrasive material and the abraded material. A first embodiment includes... | 05/29/2001 |
| 6152810 | Blasting media apparatus An apparatus for the introduction of a blasting media into a high velocity, high pressure fluid stream. In one embodiment of the present invention a dual chambered pressure vessel has a pair of auxiliary actuated pop-up valves that are cycled at a high ra... | 11/28/2000 |
| 6062957 | Dry abrasive blasting head having rotating nozzles The useful life of a dry abrasive blasting head is greatly extended by two design features. First, the tube on which the rotating nozzles are mounted is protected from abrasion by an easily-replaced wear tube which is a sleeve-like liner. Secondly, the re... | 05/16/2000 |
| 6004191 | Particulate matter delivery device Disclosed is an improved apparatus for delivery of pressurized particulate matter against a surface or target to abrade, etch, erase, cut, penetrate, smooth, clean, polish and/or harden the surface or target. The most important use to which the present in... | 12/21/1999 |
| 5947800 | Pneumatic suction surface blasting apparatus with an improved media delivery regulating system An apparatus for cleaning or treating by blasting of a surface which includes an enhanced media delivery regulating system which includes supplying high pressure air to a suction gun and using this to draw blasting media and ambient or low pressure convey... | 09/07/1999 |
| 5908349 | Fluid jet cutting and shaping system A fluid jet cutting system that includes an X-Y axis support table that is adjustable in both the X and Y-axis direction and has frame structures that overhang a centralized support platform assembly. The frame structures include overlapping central openi... | 06/01/1999 |
| 5897427 | Particle supply valve for use in blasting apparatus A blasting apparatus has two or more pressured tanks and a switching member for selecting one of the pressured tanks from which particles are to be fed to an ejection portion, thereby which enabling a continuous blasting operation. The blasting apparatus ... | 04/27/1999 |
| 5833521 | Air cushioned vacuum blast head A blast head has an air cushion device that directs a flow of relatively high velocity air inwardly and toward the surface being blasted from around the periphery of the blast head. This air flow creates a barrier preventing the escape of particles and de... | 11/10/1998 |
| 5810045 | Valve device for introducing particulate materials into a high pressure air stream A valve for introducing particulate materials into a high pressure gas stream and for preventing said particulate materials from invading those interior regions of the valve having moving parts.... | 09/22/1998 |
| 5779523 | Apparatus for and method for accelerating fluidized particulate matter A fluid jet accelerator/pressurizer apparatus for accelerating and pressurizing a fluidized stream of particulate matter, e.g. for ice blasting, has a nozzle housing defining a main conduit, forming a passage for the flow of the fluidized stream through t... | 07/14/1998 |
| 5709590 | Pressure-balanced vacuum blast head In a blast head for a vacuum blasting operation, abrasive particles in a stream of compressed air are directed against a work surface and removed by vacuum. Ambient air is directed into the blast head upstream of the work surface to reduce frictional forc... | 01/20/1998 |
| 5676589 | Blast apparatus With reference to FIG. 1 , a blast gun assembly 1 of cylindrical form comprises a plurality of disc-shaped body sections 2, 3, 5 and 10, clamped together in face-to-fact contact. The body sections 2 comprise head sections and carry air/slurry mixture disc... | 10/14/1997 |
| 5643058 | Abrasive fluid jet system An improved system for generating an abrasive fluid jet is shown and described. In a preferred embodiment, abrasive is fed from a bulk hopper into an air isolator having a baffle that limits the flow of air and abrasive through the air isolator, thereby v... | 07/01/1997 |
