Patents by Inventor Bernard M. Allen

Bernard M. Allen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4204889
    Abstract: The soft soldering of an aluminium or aluminium-based alloy member to another member of a metal or alloy capable of being soft soldered to aluminium at a joint site is effected using a lead/tin soft solder alloy in conjunction with a flux containing as one of the essential constituents a silver halide so that sufficient silver is deposited with the soft solder alloy at the joint site to prevent corrosion of the joint.
    Type: Grant
    Filed: September 13, 1978
    Date of Patent: May 27, 1980
    Assignee: Multicore Solders Limited
    Inventors: Bernard M. Allen, Wallace Rubin, Brian Watson
  • Patent number: 4168027
    Abstract: There is described a method of soft soldering aluminium or alloys thereof using a fluxed solder composition. The fluxed solder composition comprises a soldering flux suitable for use in soft soldering aluminium and its alloys and a soft solder alloy of lead, tin and silver and, optionally, up to 3% copper. The composition of the soft solder alloy is such that it contains at least 35% lead and 10% tin, and x% silver wherein x=0.1+(5.times.10.sup.-4)(Sn).sup.2 +(1.times.10.sup.-5)(Sn).sup.3, (Sn) being the percentage by weight of tin in the alloy.
    Type: Grant
    Filed: November 3, 1977
    Date of Patent: September 18, 1979
    Assignee: Multicore Solders Limited
    Inventors: Gordon F. Arbib, Bernard M. Allen