Pipe joints or couplings – Molded joint – Weld
Reexamination Certificate
2005-01-18
2005-01-18
Hewitt, James M. (Department: 3679)
Pipe joints or couplings
Molded joint
Weld
C285S148120, C285S329000, C228S107000, C428S651000
Reexamination Certificate
active
06843509
ABSTRACT:
A coupler for joining an aluminum conduit to a steel or stainless steel conduit and which includes a main body which is formed from a first layer of aluminum and a layer of steel or an iron-chromium alloy which are explosively welded together, and wherein the main body has a first aluminum surface, and an opposite, second steel or iron-chromium alloy surface, and wherein the aluminum conduit is welded to the first aluminum surface, and the steel or stainless steel conduit is welded to the second steel or iron-chromium surface.
REFERENCES:
patent: 1926517 (1933-09-01), Filippi et al.
patent: 2209325 (1940-07-01), Dennis
patent: 3137937 (1964-06-01), Cowan et al.
patent: 3233312 (1966-02-01), Cowan et al.
patent: 3264731 (1966-08-01), Chudzik
patent: 3397444 (1968-08-01), Bergmann et al.
patent: 3583062 (1971-06-01), Sharp, Jr. et al
patent: 3583064 (1971-06-01), Costello et al.
patent: 3689232 (1972-09-01), Nobuyoshi et al.
patent: 3798010 (1974-03-01), Sharp, Jr. et al.
patent: 3798011 (1974-03-01), Sharp, Jr. et al
patent: 3876136 (1975-04-01), Bomberger, Jr.
patent: 3910478 (1975-10-01), Howell et al.
patent: 4010965 (1977-03-01), Izuma et al.
patent: 4231506 (1980-11-01), Istvanffy et al.
patent: 4496096 (1985-01-01), Persson
patent: 4702406 (1987-10-01), Sullivan et al.
patent: 4981250 (1991-01-01), Persson
patent: 4988130 (1991-01-01), Obara et al.
patent: 5213904 (1993-05-01), Banker
patent: 5836623 (1998-11-01), Bothell et al.
patent: 5975590 (1999-11-01), Cowan et al.
Colmac Coil Manufacturing, Inc.
Hewitt James M.
Wells St. John P.S.
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