ANTI-GLARE IMPROVEMENT FOR NASA Case No. NPO-10337 Belgium, Canada, France, Great Britain, Address inquiries to: [Corresponding to U.S. Patent No. 3,488,103] This invention is directed to an anti-glare baffle for shading rays such as light rays or other radiant energy rays which emanate from outside a desired field of view. The device may find use in sensitive still and movie cameras, light meters, telescopes, radiometers, photometers, electro-optical position sensors, photocell shades, star tracking devices and the like. The anti-glare baffle has a specularly reflective surface formed from an oblate hemispheroid. A shading flange extends inwardly from the upper edge of the hemispheroid and intersects the foci of the oblate hemispheroid. The oblate hemispheroid and flange surround a viewing aperture and spaced ray detecting device. 78 667 74 METHOD FOR THE REPAIR AND MAINTENANCE NASA Case No. ERC-10338 Canada Address inquiries to: Marshall Space Flight Center Attn: Patent Counsel Mail Code: CC01 Huntsville, AL 35812 [Corresponding to U.S. Patent No. 3,679,360] A process for the preparation of calcium phosphate salts wherein a calcium phosphate salt is deposited from a gel medium onto the surface of a tooth. The use of the gel diffusion process to deposit the constituents of tooth enamel onto the surface of a weak or damaged tooth and thereby effect repair of the tooth is disclosed. USE OF UNILLUMINATED SOLAR CELLS AS NASA Case No. GSC-10344 Canada, France, Netherlands, Italy, Japan, Great Britain, Address inquiries to: Goddard Space Flight Center Attn: Patent Counsel Mail Code: 204 [Corresponding to U.S. Patent No. 3,672,999] An improvement has been made in the electrical interconnection of solar cells in an array of solar batteries. Each individual cell of a shaded battery is electrically connected in parallel with a corresponding cell of an illuminated solar battery. The p-n junction solar cell of the shaded battery provides a forward biased diode equivalent in a by-pass conducting path around the corresponding illuminated cell in the event it becomes non-conductive. Thus, uninterrupted current flow is maintained in the event the illuminated cell fails to function. [Corresponding to U.S. Patent No. 3,620,784] Zinc dust coatings which, when dried on a metal surface, are crack, craze, and abrasion resistant. The coatings are formed by combining a potassium silicate solution with zinc dust and, optionally, including an alkyl trialkoxysilane. These compositions of basically inorganic materials are intended primarily for the protection of metals subject to adverse environmental conditions. DEPOSITION OF FILMS NASA Case No. LAR-10362 Canada, France, Japan, Address inquiries to: Mail Code: 456 Langley Station Hampton, VA 23665 [Corresponding U.S. Patent – Application Pending] A system for depositing multilayer protective coatings on a glass or quartz substrate wherein a single heat source evaporates selective ones of a plurality of vaporizable metal coatings contained in the vacuum chamber with the substrate to be coated. The metal coating materials are contained in an electrically grounded crucible with an electrical potential of approximately 2000 volts being generated between the crucible and a cathode filament and wherein a magnetic field is provided perpendicular to the propagation direction of the electrons generated for bending the electron beam trajectory toward the coating metal contained in the crucible. |