Threaded – headed fastener – or washer making: process and apparat – Implement – e.g. – die – etc. – Screw threading die
Reexamination Certificate
2008-05-30
2011-11-01
Tolan, Edward (Department: 3725)
Threaded, headed fastener, or washer making: process and apparat
Implement, e.g., die, etc.
Screw threading die
C470S067000
Reexamination Certificate
active
08047923
ABSTRACT:
A rethreading die for clamping over a section of threaded rod is formed of two separable identically die section halves. Each die section has one-half of an outer gripping surface and an inner abutment face formed of identically shaped spaced first and second face sections in a common plane. One face section has a perpendicular alignment pin and the second face section has a perpendicular recess. The first and second faces are spaced and in a common plane. The die sections are joined together with the pin-containing face of each die section abutting the recess-containing face of the other die section so that the pins are inserted into the recesses to hold the die sections in alignment. A die tool is then clamped around the die surface, so that the die can be rotated over the damaged rod section to repair the threads.
REFERENCES:
patent: 300604 (1884-06-01), Hartmann
patent: 739873 (1903-09-01), Howe
patent: 888563 (1908-05-01), Wilkins
patent: 1416059 (1922-05-01), Piel
patent: 1564591 (1925-12-01), Lansche
patent: 1576166 (1926-03-01), Wells
patent: 1625830 (1927-04-01), Smith
patent: 1803888 (1928-09-01), Basola et al.
patent: 1857493 (1932-05-01), Campaigne
patent: 1951581 (1932-11-01), Smith et al.
patent: 4132146 (1979-01-01), Uhlig
patent: 4346491 (1982-08-01), Kraus et al.
patent: 4572032 (1986-02-01), Kinzler
patent: 4657458 (1987-04-01), Wollar et al.
patent: 4872790 (1989-10-01), Sibole
patent: 5288181 (1994-02-01), Pinkston
patent: 5803676 (1998-09-01), Wienss
patent: 6206620 (2001-03-01), Burns
patent: 7338246 (2008-03-01), Caspi
,MacCord Mason PLLC
Tolan Edward
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