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 |
| 7182858 | Multiple barrier filter apparatus A filter apparatus is provided which includes a first filter membrane element (40a), and a second bacterial filter membrane element. The first viral filter element (40a) is capable of treating water at a first second flow rate and is adap... | 02/27/2007 |
| 6935371 | High capacity globe valve A high flow globe valve with a body defining an interior cavity in communication with a first and second fluid passages. A tubular throttling cage is offset in the cavity away from the second fluid passage and has an open end in communication with the first fluid pa... | 08/30/2005 |
| 6508932 | Filter with valve having a hydrophobic coating A filter, especially a filter for lubricating oil of an internal combustion engine, including an inlet for the raw liquid and an outlet for the clean liquid. A filter insert (12) is arranged inside the filter, as well as a valve, such as a pressure relief... | 01/21/2003 |
| 6413602 | Pipes for conveying drinking water The invention relates to pipes for conveying drinking water, including a main layer made of polyolefin covered on the outside with a layer of a thermoplastic polymer which is impervious to hydrocarbons, such as, for example, polyamides, polyvinylidene flu... | 07/02/2002 |
| 6288269 | Apparatus for introducing fluid into a process stream Apparatus for introducing a fluid into a process stream such as promoter into the feed stream of a reactor for manufacturing vinyl acetate comprises: (a) a process stream pipe having a bend and (b) a nozzle for introducing the fluid into the process strea... | 09/11/2001 |
| 6264890 | Method and apparatus for collecting and processing blood A container is provided that is disposable, for first collecting blood delivered from a patient, preferably by a vacuum draw of blood into a container, and then the blood in the container is treated. The treatment is provided by an at least partial a back... | 07/24/2001 |
| 5810044 | Fluid control system A system for controlling fluid flow from an outlet aperture, particularly a standpipe such as a fire hydrant. There is a first cylindrical collar element for location around the standpipe and connected with that element a second cylindrical element such t... | 09/22/1998 |
| 5789045 | Microtubes devices based on surface tension and wettability In the present invention, various sizes of non-wetting droplets are inserted into microtube devices of various shapes having therein a gas or wetting fluid which causes the droplets to movement in response to fluid pressure. The droplets may translate wit... | 08/04/1998 |
| 5533668 | Remotely activated opposing/aiding air flow control register A bi-directional airflow controllable system for controlling flow of air through an air circulating system to at least one zone an air temperature of which is to be controlled is coupled to an airflow duct to aid or oppose airflow throughout the duct and ... | 07/09/1996 |
| 5413278 | Remotely activated opposing pressure air flow control register The invention is directed to a method and apparatus for controlling airflow in a given direction in an air circulating system in which the method comprises the steps of: (a) placing a motor driven fan in the air circulating system in such a manner that th... | 05/09/1995 |
| 4567924 | Aircraft under-wing fueling nozzle system A modular nozzle system for refueling aircraft fuel tanks includes a nozzle valve linkage mechanism which permits the valve body to have a shorter length than previous designs. The nozzle may include a mechanical fuse for releasing the connection between ... | 02/04/1986 |
| 4532949 | Energy absorber for high energy fluid jet An energy absorber for a high pressure and velocity fluid jet emanating from a nozzle is disclosed. An energy absorbing ball is freely rotatably supported in an energy absorbing chamber between seat faces. The high pressure and velocity fluid enters the e... | 08/06/1985 |
| 4431029 | Method of making shells for swing plate valves A method of forming a flat plate swing valve shell from a commercially available forged or swaged pressure vessel head having circular sections in horizontal planes and elliptic sections in vertical planes. The shell is formed by cutting the head along a ... | 02/14/1984 |
| 4273156 | Shutoff device The shutoff device for closing a large cross-sectional area gas duct comprises a lock chamber defined by the gas duct walls and the two rows of swivel louvre grills held to the housing of the shutoff device which accommodates also a mechanical actuator, s... | 06/16/1981 |
| 4016417 | Laser beam transport, and method This invention relates to a method of transport of vaporized matter by laser beam, and the equipment to practice the method. The vaporized material is introduced into the laser beam at the point of generation of the beam, and conveyor junctions are provid... | 04/05/1977 |
| 3942560 | Safety stop for pressurized pipeline A method and apparatus for stopping a malfunctioning sealing device which is being propelled inside a pipeline by pneumatic pressure from being expelled out of the pipeline at the laybarge end. The apparatus comprises a plurality of normally retracted gri... | 03/09/1976 |
