With Means To Cool Work Or Product Patents (Class 228/46)
  • Device for cooling welds
    Patent number: 3948428
    Abstract: Apparatus for cooling welds obtained by high heat input processes by the combined use of water and of gas, wherein the cooling water is brought into contact with the hot weld in a restricted zone located immediately under the molten bath, said zone having a ratio of its dimension transverse to the weld seam and the dimension parallel thereto, comprised between 10:1 and 1:1; and wherein the generated steam and the non evaporated water are immediately removed from the weld.
    Type: Grant
    Filed: July 16, 1973
    Date of Patent: April 6, 1976
    Assignee: Centro Sperimentale Metallurgico S.p.A.
    Inventors: Franco Bonomo, Fernando Caldarelli
  • Method for sealing packages
    Patent number: 3937388
    Abstract: A method and apparatus for sealing packages, e.g., microelectronics packages containing heat sensitive elements, by applying heat to melt solder on the peripheries thereof. At the same time heat is being applied to a package heat sinks are simultaneously engaged with the top and bottom portions thereof to carry off excess heat and thus protect the heat sensitive elements from damage.
    Type: Grant
    Filed: May 24, 1973
    Date of Patent: February 10, 1976
    Assignee: The Johns Hopkins University
    Inventor: Daniel D. Zimmerman