Fabrication of glass microspheres with conducting surfaces
Patent 4459145 Issued on July 10, 1984. Estimated Expiration Date: 
September 30, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 30, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2730841 3231408 3429295 3471314 3623854 3713884 3827870 3920433 Method for manufacturing glass frit Method for producing small hollow spheres InventorAssigneeApplicationNo. 06/429924 filed on 09/30/1982US Classes:65/21.3, Spheroidizing or rounding of solid glass particles427/251, Moving the base427/252, By decomposing metallic compound (e.g., pack process, etc.)427/253, Halogen containing compound65/21.4, Hollow or porous particle65/22, With pore forming in situ65/60.2, Plural diverse layers65/60.51From inorganic metal saltExaminersPrimary: Lindsay, Robert L.Attorney, Agent or FirmInternational ClassesC03C 17/06 (20060101)C03C 17/09 (20060101) H05H 1/22 (20060101) H05H 1/02 (20060101) C03B 19/00 (20060101) C03B 19/10 (20060101) AbstractA method for making hollow glass microspheres with conducting surfaces by adding a conducting vapor to a region of the glass fabrication furnace. As droplets or particles of glass forming material pass through multiple zones of different temperature in a glass fabrication furnace, and are transformed into hollow glass microspheres, the microspheres pass through a region of conducting vapor, forming a conducting coating on the surface of the microspheres. | |
