Arsenic Containing Patents (Class 420/567)
  • Publication number: 20020009633
    Abstract: An alloy for casting terminals for lead-acid batteries which has good corrosion resistance, produces less dross during manufacturing, has resistance to polypropylene degradation, as well as other improved features. The alloy is composed of antimony present in the range of about 2.5-4.75%; arsenic present in the range of about 0.15-0.35%; tin present in the range of about 0.2-0.6%; copper present in the range of about 0-200 ppm; sulfur present in the range of about 0-40 ppm and the balance lead. In an alternative embodiment, copper and sulfur are replaced with selenium in the range of about 40-90 ppm.
    Type: Application
    Filed: July 2, 2001
    Publication date: January 24, 2002
    Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
    Inventors: Christian P. Hansen, Lena N. Klebanov, David A. Wynn, Glenn M. Trischan, Charles J. Schaeffer
  • Patent number: 5670307
    Abstract: A silver halide photographic element comprising a silver halide emulsion which is greater than 50 mole % silver chloride, said emulsion being in reactive association with a dioxide compound represented by the following formula: ##STR1## wherein b is C(O), C(S), C(Se), CH.sub.2 or (CH.sub.2).sub.2 ; and R.sup.1 and R.sup.2 are independently H, or aliphatic, aromatic or heterocyclic groups, or R.sup.1 and R.sup.2 together represent the atoms necessary to form a five or six-membered ring or a multiple ring system; and a sulfinate compound.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: September 23, 1997
    Assignee: Eastman Kodak Company
    Inventor: Roger Lok
  • Patent number: 4629516
    Abstract: A process is provided for increasing the strength of antimony-lead alloys by specially treating an alloy which contains an effective amount of arsenic in the alloy, the process comprising working the alloy, rapidly heat treating the alloy, which includes quenching, for a period of time sufficient to activiate a strengthening mechanism in the alloy. The process is especially useful for the manufacture of battery grids on a continuous production line.
    Type: Grant
    Filed: April 1, 1985
    Date of Patent: December 16, 1986
    Assignee: ASARCO Incorporated
    Inventor: Michael Myers
  • Patent number: 4443405
    Abstract: The grain size and resistance to corrosion of lead-antimony alloys containing less than 4% of antimony and 0.005 to 0.1% copper, are improved by incorporating therein from 0.001 to 0.1% of a mixture of rare earths, preferably misch metal. The alloys may also contain up to 0.5% arsenic or up to 0.8% of tin.
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: April 17, 1984
    Assignee: Societe Anonyme dite Compagnie Europeene d'Accumulateurs
    Inventors: Gerard Dalibard, Nicole Viaud
  • Patent number: 4376093
    Abstract: Low antimony lead alloys suitable for use as grid material in maintenance-free high capacity lead acid batteries are disclosed. The alloys comprise 0.6 to 1.1 weight percent antimony, 0.06 to 0.25 weight percent arsenic, 0.1 to 0.4 weight percent tin, 0.06 to 0.11 weight percent copper, and the balance lead. A preferred alloy contains 0.8 weight percent antimony, 0.15 weight percent arsenic, 0.25 weight percent tin and 0.08 weight percent copper.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: March 8, 1983
    Assignee: RSR Corporation
    Inventor: Raymond D. Prengaman