Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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US Patent 4019888 - Method of melting a raw bath and a glass furnace for performing the method
US Patent Issued on April 26, 1977
Estimated Patent Expiration Date:
April 26, 1994Estimated 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.
Estimated Patent Expiration Date:
April 26, 1994Estimated 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.AbstractA method of and a glass furnace for the melting of a raw batch of glass, in the form of pellets distributed in a thin, uniform layer over a glass melt by a rotor arranged in the roof of the glass furnace, with air being injected into the glass melt. The melting process is accelerated and the homogeneity of the glass melt is improved. | Inventors
ApplicationNo. 05/639577 filed on 12/10/1975US Classes:65/134.5, By injecting gas below surface of molten glass65/135.2, By agitating65/135.9, By charging batch material65/335, GLASS FURNACE WITH FURNACE CHARGING MEANS65/345By suspended baffleField of Search65/337, Supplemental heating or heat exchange means associated with pool65/345, By suspended baffle65/347, MELTING POT OR FURNACE WITH STRUCTURALLY DEFINED DELIVERY OR FINING ZONE65/335GLASS FURNACE WITH FURNACE CHARGING MEANSExaminersPrimary: Kellogg, Arthur D.Attorney, Agent or FirmUS Patent References3248205, 3929445Foreign Application Priority Data1975-02-10 NL |
