Amoco Corporation

Other

John H Clark

Douglas W Anthon

George J Dixon

James H Fisher

Dennis L Werth

James L Bierschenk

Leo F Johnson

Edward J Burke

Thomas Wolfram

Timothy J Pier

Disclosed is a device used to verify the identity of a selected fluid before permitting the selected fluid to be introduced into a storage vessel containing a liquid of known specific gravity. The device includes a container constructed from connecting walls to form a chamber having an opening through which a selected fluid may be introduced; a first float switch positioned in the container for generating a first signal when contacted by a fluid having a specific gravity greater than a first predetermined amount; a second float switch positioned in the container for generating a second signal in the presence of a fluid having a specific gravity greater than a second predetermined amount, where the first predetermined amount is less than the second predetermined amount, and the second float switch is responsive to the first signal from the first float switch.

Device to verify the identity of a fluid for proper selection of storage

A laser apparatus and method is disclosed comprising a first lasant material which is located in an optical cavity and which produces laser radiation of a first wavelength, and a second lasant material which is pumped by radiation from the first lasant material, which absorbs laser radiation at the first wavelength in an amount generally comparable to the Optimum Output Coupling, which functions as the output coupler for the optical cavity and which lases at a second wavelength. The first lasant material and the second lasant material are preferably selected to have minimal losses such that there is a net gain in the cavity.

Apparatus and method for pumping of a weakly absorbing lasant material

A heat dissipating device and method for dissipating waste heat produced by a solid state device, which includes (a) a solid state device and (b) a heat sink for dissipating waste heat produced by the solid state device which includes a base member being in thermal contact with the solid state device and a plurality of elongated heat conducting elements extending outwardly from the base member.

Heat dissipating device for laser diodes

The optical output power from a GaInP based laser diode can be at least doubled by slight cooling of the device with thermoelectric cooling means when the diode is operated in a substantially room temperature environment.

Method for increasing the output power of a laser diode

Optical radiation from a laser diode is frequency modified through interaction with a nonlinear optical material in an external optical cavity. High efficiency frequency modification is achieved through the use of optical feedback from the external cavity to narrow the linewidth of the laser diode output and frequency lock the laser diode to the external cavity.

Optical feedback control in the frequency conversion of laser diode

An efficient, compact source of coherent radiation in the infrared, visible and ultraviolet portion of the spectrum which is capable of modulation rates over the range from O Hz to in excess of 1 GHz. The radiation is produced by optical mixing within an external optical cavity wherein at least one of the interacting beams of light is provided by a solid state device selected from the group consisting of laser diodes, laser diode arrays and diode-pumped solid state lasers.

Generation of coherent optical radiation by optical mixing

An efficient, compact source of coherent radiation in the infrared, visible and ultraviolet portion of the spectrum which is capable of modulation rates over the range from 0 Hz to in excess of 1 GHz. The radiation is produced by optical mixing within the optical cavity of a laser by introducing input radiation into the optical cavity where: (a) the cavity is that of a diode-pumped solid state laser, and/or (b) input radiation is provided by a solid state device selected from the group consisting of laser diodes, laser diode arrays and diode-pumped solid state lasers.

Intracavity generation of coherent optical radiation of optical mixing

An optically pumped solid state laser which is constructed of components held in association by a support structure which is configured to receive the components and automatically arrange them with respect to one another along an optical path.

Solid state laser

An optically pumped solid state laser which is constructed of components having attached fittings which are structured in such a manner that the components are automatically arranged with respect to one another along an optical path upon joining the fittings together.

Solid state laser and method of making

Method and apparatus for reshaping an incurvated or distorted toenail for the purpose of alleviating conditions incident to the development of an ingrown toenail. The appliance and method provide for the straightening of the toenail through the application of an external force system to the nail surface producing the result that the lateral margins of the nail are caused to be removed and lifted from the soft tissues of the nail groove. The appliance consists of a pair of post members adhesively secured to the surface of the nail and one or more tensioned elastomeric members secured to the post members in a manner to cause a lifting and straightening force to be exerted on the nail.

Growing community of inventors

Wheaton, IL, United States of America

John H Clark