Fluid handling – Systems – Articulated or swinging flow conduit
Reexamination Certificate
2005-07-05
2005-07-05
Lee, Kevin (Department: 3753)
Fluid handling
Systems
Articulated or swinging flow conduit
C138S118000
Reexamination Certificate
active
06913041
ABSTRACT:
A concrete boom hose is provided with a first end that is connected to the outermost end of a series of concrete pipes and a second end through which the flowing concrete exits. The second end is provided with an inner diameter that is smaller than the inner diameter of the first end that is connected to the concrete pipe.
REFERENCES:
patent: 3651832 (1972-03-01), Meyer
patent: 4954055 (1990-09-01), Raible et al.
patent: 5988700 (1999-11-01), Prichard
patent: 6142180 (2000-11-01), Woodling et al.
patent: 3224755 (1984-01-01), None
patent: 29507683 (1995-07-01), None
patent: 1412115 (1975-10-01), None
patent: 10016075 (1996-07-01), None
Altamirano Rolando
Lehnhardt Gary D.
Andrus Sceales Starke & Sawall LLP
Construction Forms, Inc.
Lee Kevin
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