Metal fusion bonding – Specialized pot – Having means to treat flux or filler
Patent
1976-08-13
1978-02-28
Kelly, Donald G.
Metal fusion bonding
Specialized pot
Having means to treat flux or filler
403267, 403272, 403300, 164333, B23K 2300
Patent
active
040761630
ABSTRACT:
An improved thermite-type coupler for the splicing of bar-like structures such as reinforcement bars, of the type having an outer sleeve; an inner sleeve located within the outer sleeve; two collar members, each joining one end of the outer sleeve to one end of the inner sleeve; the area defined between the inner sleeve and the outer sleeve containing a thermite-type mixture and the area within the inner sleeve forming an annular space utilized for insertion of the ends of two bar-like structures, including means for igniting the thermite-type mixture and means for allowing the thermite-type reaction products after ignition to enter the annular space under pressure thereby, upon solidification, splicing the bar-like structures together having the improvement wherein the means for allowing the thermite-type reaction products afer ignition to enter the annular space comprises the inner sleeve having a multiplicity of perforations distributed over its surface. Other embodiments include: an inner sleeve containing tapered perforations; a sleeve member affixed to the inner sleeve within the annular space; and an inner sleeve containing a multiplicity of cavities.
REFERENCES:
patent: 2569956 (1951-10-01), Schilknecht
patent: 3192080 (1965-06-01), Cooper
patent: 3234603 (1966-02-01), Leuthy et al.
patent: 3255498 (1966-06-01), Leuthy et al.
patent: 3860062 (1975-01-01), McMurray et al.
Kelly Donald G.
Nitkin William
Ramsey K. J.
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