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Gandy dancer: end piece for crash cushion or rail end treatment
(United States. Patent and Trademark Office, 1994-09-20)
A method of cushioning highway vehicle impacts and an improved end piece for a highway crash cushion or rail end treatment for concrete barriers or for guard rail terminals. The end piece has means to trap the bumper or ...
Probes and method for identifying species and biovars of brucella
(United States. Patent and Trademark Office, 1994-09-20)
A method for detecting Brucella infection in an animal which is reliable, rapid, and able to identify species and biovars of Brucella. The detection method includes the amplification of the omp2 gene locus of Brucella and ...
Slotted orifice flowmeter
(United States. Patent and Trademark Office, 1994-03-22)
A flow impedance device is provided for an obstruction flowmeter for determining the flow rate of a compressible or incompressible fluid in a conduit. The flowmeter has means for measuring the temperature and pressure of ...
Pedestrian safety barrier
(United States. Patent and Trademark Office, 1994-04-12)
An elongated pedestrian safety barrier adapted to be longitudinally disposed between a roadway and an adjoining pedestrian walkway. The safety barrier features a concrete structure up to about 24 inches in height having ...
Power conversion using zero current soft switching
(United States. Patent and Trademark Office, 1994-02-15)
A zero current soft switching power converter (10) is provided in which a link capacitor (20) is coupled between a source switch S1 and a source switch S2. The reversal of voltage polarity across link capacitor (20) allows ...
Apparatus and method for embedding optical fibers in metal
(United States. Patent and Trademark Office, 1994-02-01)
Optical fibers are embedded in metal structures and components by using a pair of stress-relieving tubes at the air-metal interface of the optical fiber.
Accuracy bootstrapping
(United States. Patent and Trademark Office, 1994-07-05)
A method and apparatus for a system physically realizing a transfer function and having improved accuracy and fast calibration is described, comprising a plurality of stages configured in a serial fashion, each stage having ...
Ultrasonic non-destructive evaluation of thin specimens
(United States. Patent and Trademark Office, 1994-04-19)
In the field of non-destructive evaluation of materials, conventional ultrasonic measurement techniques are limited to materials having a thickness which is relatively large compared to the wavelength of the ultrasonic ...
Reactive compositions containing superoxide ion for the degradation of halogenated organic compounds
(United States. Patent and Trademark Office, 1994-10-25)
Reagent compositions suitable for use in degrading and detoxifying polyhalogenated organic compounds comprising an aprotic solvent having dissolved therein (a) an effective amount of hydrogen donor, (b) an effective amount ...
Apparatus and method for damage detection
(United States. Patent and Trademark Office, 1994-07-05)
A method for detecting damage in the structure includes a plurality of steps. These steps include determining first data indicative of pre-damage modal parameters of the structure, determining second data indicative of ...