Pipe joints or couplings – With indicator – alarm or inspection means
Reexamination Certificate
2008-01-01
2008-01-01
Hewitt, James M. (Department: 3679)
Pipe joints or couplings
With indicator, alarm or inspection means
C116S276000, C073S323000, C073S325000
Reexamination Certificate
active
07314237
ABSTRACT:
A pipe joint assembly including a transparent quill; an outer quill having at least a first view port, and having at least a first outwardly extending pipe coupling thread which extends longitudinally along and helically about the outer quill, the transparent quill being slidably received by the outer quill; a pair of baffles; and baffle mounting helical threads interconnecting the baffles and the outer quill, the baffle mounting helical threads positioning the baffle so that they extend radially inward from the outer quill, the baffle mounting helical threads further positioning the baffles for resisting longitudinal sliding and counter-sliding motions of the transparent quill.
REFERENCES:
patent: 820922 (1906-05-01), Einsele
patent: 1172039 (1916-02-01), Ottesen
patent: 1417530 (1922-05-01), Kendall et al.
patent: 1483200 (1924-02-01), Skold
patent: 1694903 (1928-12-01), Anderson
patent: 1694904 (1928-12-01), Anderson
patent: 1886444 (1932-11-01), Wurster
patent: 2570322 (1951-10-01), Christopher
patent: 2592848 (1952-04-01), Baird
patent: 2620663 (1952-12-01), Fine
patent: 2624308 (1953-01-01), Wittlin
patent: 2655124 (1953-10-01), Gary et al.
patent: 2660144 (1953-11-01), Newcum
patent: 2687108 (1954-08-01), Walker
patent: 2714868 (1955-08-01), Franck
patent: 2725844 (1955-12-01), Wittlin
patent: 2744488 (1956-05-01), Wittlin
patent: 2817309 (1957-12-01), Wittlin
patent: 2842089 (1958-07-01), Midkiff
patent: 2843078 (1958-07-01), Wittlin
patent: 3375802 (1968-04-01), Lazarre
patent: 3585963 (1971-06-01), Hiszpanski
patent: 5628231 (1997-05-01), Sheridan
patent: 5673722 (1997-10-01), Brass
patent: 2003/0047128 (2003-03-01), Delp
Davis & Jack, L.L.C.
Hewitt James M.
Jack Kenneth H.
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