Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 6508108 | Settling test for magnetorheological fluids A method of testing magnetorheological fluid comprises cycling the fluid at an elevated temperature, allowing the fluid to stand, performance testing the fluid, cycling the fluid at superimposed frequencies, and noting settling characteristics of the flui... | 01/21/2003 |
| 6113857 | Gauge type time and temperature integrating indicator device A time and temperature integrating device for providing a visually observable indication of cumulative thermal exposure is disclosed comprising (a) at least two thermally sensitive image-forming areas of differing thermal sensitivity, and (b) indicating i... | 09/05/2000 |
| 5644239 | Method and apparatus for sensing the condition of a fluid A method and apparatus for determining the condition of a fluid used in a process, such as a lubricating oil used in an internal combustion engine. A sample of the fluid is heated to an elevated temperature, a measurement is taken of an electrical charact... | 07/01/1997 |
| 5193382 | Clogging indicator for controlling sodium quality The clogging indicator makes it possible to continuously measure the purity of sodium circulating in the circuits of a fast neutron reactor without requiring the dismantling or completely changing the indicator should the measuring section becomes clogged... | 03/16/1993 |
| 4781892 | Apparatus and method for determining fouling tendency of liquid hydrocarbons Apparatus and method for determining the tendency of hydrocarbon liquid to foul equipment includes a horizontal TLC plate, a light source for scanning hydrocarbon liquid sample on the TLC plate, and means for measuring the difference in light reflected by... | 11/01/1988 |
| 4762168 | Condenser having apparatus for monitoring conditions of inner surface of condenser tubes A condenser including a plurality of condenser tubes through which a coolant is caused to flow, a device for injecting ferrous ions into the coolant before it passes through the condenser tubes to form a protective film on an inner surface of the condense... | 08/09/1988 |
| 4752446 | Corrosion test cabinet contaminant mixing apparatus A diffusing apparatus is adapted for vertically adjustable relation with a fog tower. A separate second corrosive fluid is emitted from plural outlets spaced approximately 45° apart along the exterior of the diffusing apparatus. The outlets direct the se... | 06/21/1988 |
| 4727826 | Model steam generator having an improved feedwater system A model steam generator including an improved feedwater system for monitoring the conditions of the heat exchange tubes within a nuclear steam generator is disclosed herein. The feedwater system generally comprises a first conduit fluidly connected betwee... | 03/01/1988 |
| 4603113 | Corrosion testing Techniques and apparatus are described for measurement of corrosion of drill pipe in a well bore during drilling. The techniques involve the use of a test coupon attached to the external surface of a drill string. In a preferred embodiment the test coupon... | 07/29/1986 |
| 4521864 | Measurement of build-up of fouling deposits by sensing flow characteristics during brief flow excursions A method and apparatus for measuring the thickness of film fouling in a hydraulic system. While the system is clean and unfouled, it is subjected to a brief test run during which the water velocity is swept over a wide range and the corresponding pressure... | 06/04/1985 |
| 4440862 | Method of determining corrosion properties of zirconium alloys Means for discriminating the corrosion susceptibility of alloys of zirconium in an environment of a water cooled, nuclear fission reactor.... | 04/03/1984 |
| 4297873 | Plugging device Disclosed is a plugging device which comprises a plugging orifice having in a passage for a liquid metal a conical portion spreading out toward the upper-course side and a straight pipe portion extending from a small-diameter part of the conical portion a... | 11/03/1981 |
| 4274280 | Plugging indicator A plugging indicator comprises an economizer having concentric outer and inner pipes one ends of which are connected to a main conduit through which liquid metal passes, an electromagnetic pump mounted on the outer pipe for branching the liquid metal into... | 06/23/1981 |
| 4178795 | Plugging meter A plugging meter for automatically measuring the impurity concentration in a liquid metal is designed to have parallel passages including a cooling passage provided with a plugging orifice and with a flow meter, and a by-pass passage connected in series t... | 12/18/1979 |
