1
Harry N Treaftis, Thomas F Tomb: Two-stage disposable particle sampling head. The United States of America represented by the Secretary of Interior, Gersten Sadowsky, Donald R Fraser, April 13, 1976: US03949594 (20 worldwide citation)

An integral, two-stage aerosol sampling head for collecting and separating irborne particulate contaminants into two size fractions is provided which comprises a moulded housing containing an impaction plate as a first stage for removing and collecting particles having an aerodynamic equivalent diam ...


2
Scheiner Bernard J, Lindstrom Roald E: Recovery of gold from ores. The United States of America represented by the Secretary of Interior, October 9, 1973: US3764650 (14 worldwide citation)

Gold is recovered from ores by slurrying the ores with an acid-salt mixture and treating the slurry with ozone, whereby the gold is extracted in the form of a chloride complex.


3
Tindle Roger C, Stalling David L: Multiple-loop chromatography system. The United States of America represented by the Secretary of Interior, July 10, 1973: US3744219 (13 worldwide citation)

An automated chromatography system employs multiple-port rotary valves for ample storage, introduction and collection. Between the corresponding stator ports of a pair of valves, multiple sample loops are connected in series with inlet and outlet ports by rotating the mechanically linked valve rotor ...


4
Andrew B Cecala, Jon C Volkwein: Self-adjusting cap lamp bracket. The United States of America represented by the Secretary of Interior, Thomas Zack, E Philip Koltos, July 23, 1985: US04530112 (12 worldwide citation)

A combined headpiece, light source, and protective face shield. The orienion of the emitted light beam from the light source remains the same whether the face shield is in a down protective position or a raised unprotective position for the user's face. This allows the user to use both hands while a ...


5
Brent W Madsen: Bonding of metallic glass to crystalline metal. The United States of America represented by the Secretary of Interior, E Philip Koltos, Thomas Zack, February 4, 1986: US04568014 (11 worldwide citation)

A method of bonding a first thin crystalline metal to a second thin metal ch as metallic glass is disclosed. Initially, the metallic glass is coated with a thin thermal barrier layer. Next, the first metal is heated to a temperature sufficient for diffusion bonding. Finally, the metallic glass is ma ...


6
Babcock Clarence O: Load measuring gage. The United States of America represented by the Secretary of Interior, Zack Thomas, Fraser Donald R, October 28, 1975: US3914992 (7 worldwide citation)

A load measuring gage with a vibratory wire. In the embodiment preferred its cost, a single short stressed piano wire is fixed at its ends in a vertical cut out slot in a steel gage body. If accuracy is more important than cost, three of these wires equidistantly spaced in individual vertical slots ...


7
Ripple Charles D, James Ronald V, Rubin Jacob: System for packing particulate material into long cylindrical containers. The United States of America represented by the Secretary of Interior, Silverstein M Howard, Lukasik Frank A, October 1, 1974: US3838716 (7 worldwide citation)

Particulate material is deposited in an elongated container by continuously nd uniformly depositing the material in the container while repeatedly lifting and dropping (and impacting) the container and the particle delivery means. Post-impact vibration and bouncing are damped.


8
Lacey Robert E, Mintz Milton S: Process for effecting changes in solution concentrations. Southern Research Institute, The United States of America represented by the Secretary of Interior, July 11, 1972: US3676335 (6 worldwide citation)

Efficiency of reverse osmosis separation processes is enhanced by reducing the thickness of the boundary layer formed at the membrane-solution interface. This is accomplished by placing a second membrane, which is substantially permeable to the solution, in a close-spaced relationship to the reverse ...


9
Joseph Prizio, Alexander Ritt, Timothy E Mower, Lonn Rodine: Bi-directionally draining pore fluid extraction vessel. The United States of America represented by the Secretary of Interior, E Philip Koltos, September 24, 1991: US05050493 (5 worldwide citation)

The invention is used to extract pore fluid from porous solids through a combination of mechanical compression and inert-gas injection and comprises a piston for axially compressing samples to force water out, and top and bottom drainage plates for capturing the exuded water and using inert gas to f ...


10
Sanaa E S Khalafalla, William H Engelmann, John E Pahlman: Isoelectric drilling method. The United States of America represented by the Secretary of Interior, E Philip Koltos, August 23, 1988: US04765415 (5 worldwide citation)

The enchancement of rock drilling by neutralizing the rock surface charge with respect to the drilling fluid. The isoelectric condition is obtained by nullifying the zeta potential of the rock surface by chemical additives such as surfactants or any material. Drilling enchancement is maintained as l ...