Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Reexamination Certificate
2005-03-15
2005-03-15
Stinson, Frankie L. (Department: 1746)
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
C134S16600C, C134S111000, C134S16800C, C366S138000
Reexamination Certificate
active
06866047
ABSTRACT:
An apparatus and method for containing and filtering rinse water, sediment and aggregate resulting from washing the hopper and discharge chute components of a concrete truck at a construction site following use comprises a container (20) removably mountable on the end of the discharge chute (18), the container (20) having an open upper end (31), a screen (23) removably positionable within the container (20) and an outlet (29) located in a lower portion of the container (20) below the screen (23). The apparatus further includes a pump (32) mountable on the truck, the pump (32) having a suction hose (34) extending between the container outlet (29) and the pump (32), and a discharge hose (36) extending from the pump (32) to an open end discharging into the mixing drum (14). When the pump (32) is operating, rinse water and relatively small particle size sediment flushed down the chute (18) and into the container (20) is automatically conveyed through the suction (34) and discharge (36) hoses into the mixing drum (14).
REFERENCES:
patent: 3042553 (1962-07-01), Kearney et al.
patent: 3291144 (1966-12-01), Diamond
patent: 4285808 (1981-08-01), Horton
patent: 4422767 (1983-12-01), Yelton
patent: 4585355 (1986-04-01), Waitzinger
patent: 5127740 (1992-07-01), DeBoer
patent: 5178455 (1993-01-01), Ohsaki et al.
patent: 5605398 (1997-02-01), Cronquist
patent: 5685978 (1997-11-01), Petrick et al.
patent: 5741065 (1998-04-01), Bell et al.
patent: 5899217 (1999-05-01), Testman, Jr.
patent: 6039468 (2000-03-01), Kowalcyzk
patent: 6155277 (2000-12-01), Barry
patent: 6418948 (2002-07-01), Harmon
patent: 2267582 (2001-12-01), None
patent: 0034539 (1981-08-01), None
patent: 2147012 (1985-05-01), None
patent: 1049604 (1989-02-01), None
patent: 8-198003 (1996-08-01), None
Joe Chaitlain, Bruce Clague, Jun. 24, 1997, Disclosure Document Program submission.
Ocean Construction Supplied Limited
Oyen Wiggs Green & Mutala
Stinson Frankie L.
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