Abstract: A wheel guard includes a cover having a cone shape with an outer surface, an inner surface, a top end, a bottom rim, a first terminal edge running from the top end to the bottom rim, and a second terminal edge opposite the first terminal edge and running from the top end to the bottom rim. A coupler is configured to releasably couple the first terminal edge to a plurality of different radial points of the cover, thereby adjusting a diameter of the bottom rim.

Abstract: A wheel guard includes a cover having a cone shape with an outer surface, an inner surface, a top end, a bottom rim, a first terminal edge running from the top end to the bottom rim, and a second terminal edge opposite the first terminal edge and running from the top end to the bottom rim. A coupler is configured to releasably couple the first terminal edge to a plurality of different radial points of the cover, thereby adjusting a diameter of the bottom rim.

Abstract: A night vision goggle system includes a housing, and an eyepiece forming a back end of the housing for viewing an object of interest. An optical field-of-view (FOV) is formed through the eyepiece, where the FOV is defined by a cone having an apex formed adjacent to an exit pupil at the eyepiece and tapering outwardly toward the object of interest. A desiccant is disposed within the housing, and located outside the FOV. The desiccant is visible through the eyepiece when viewed from outside the FOV. In addition, when the eye of a user is placed within the FOV, the desiccant is not visible through the eyepiece; and when the eye of the user is placed outside the FOV, the desiccant is visible through the eyepiece.

Abstract: A night vision device includes an image intensifier tube and a fiber optic screen disposed in operative relationship to each other. The fiber optic screen includes a longitudinal bundle of multiple optical fibers, where the bundle has an outer surface. A groove is formed in the fiber optic screen and extends transversely to the longitudinal bundle. An indicator is positioned adjacent to the outer surface of the bundle and is proximate to the groove, where the groove is configured to redirect light emitted from the indicator for viewing by a user. The groove may be formed circumferentially around a portion of the outer surface of the longitudinal bundle. The groove includes a surface of end portions of multiple cut optical fibers, and the groove is configured to redirect the light emitted from the indicator toward the user by way of the end portions of the multiple cut optical fibers.

Abstract: The present invention provides a mega-boule for use in fabricating microchannel plates (MCPs). The mega-boule includes a cross-sectional surface having at least first, second and third areas, each area occupying a distinct portion of the cross-sectional surface. The first and second areas include a plurality of optical fibers, transversely oriented to the cross-sectional surface, each optical fiber having a cladding formed of non-etchable material and a core formed of etchable material. The third area is disposed interstitially between and surrounding the first and second areas, and includes non-etchable material.

Abstract: Molybdenum oxides are recovered from an organic solvent solution of organic molybdenum compounds by adding the organic solvent solution to water and reacting the organic molybdenum compounds therein with oxygen under pressure to convert the organic components of the organic molybdenum compounds to carbon dioxide and water and to convert the molybdenum components to molybdenum oxides, and to form an aqueous solution of molybdenum oxides from which the molybdenum oxides can be recovered.

Abstract: An adsorbent composition comprising powdered charcoal on a support of polyurethane foam, and its use for separation of polynuclear aromatic compounds from mixtures containing them.