System and method for transporting measured amounts of bulk...

Details System and method for transporting measured amounts of bulk... System and method for transporting measured amounts of bulk...

2005-01-12

2010-12-14

Ngo, Lien T (Department: 3754)

Dispensing

With casing or support

Bracket or suspension supported

C222S057000

Reexamination Certificate

active

07850047

ABSTRACT:
A system for transporting measured amounts of bulk material from a first site to a remote site generally comprising means for holding a mass of material to be transported to the receptacle; means for transporting the material from the holding means to the receptacle; means for injecting a gas under pressure into the transporting means for pneumatically conveying material received from the holding means to the receptacle, operable in continuous and intermittent modes; means for sensing the weight of the receptacle; and a programmable logic controller operatively connected to the sensing means and the injecting means, operable responsive to a weight of the receptacle up to a first weight for operating the injection means in the continuous mode, a weight of the receptacle between the first weight and up to a second weight greater than the first weight for operating the injection means in the intermittent mode and to the second weight for discontinuing the injection means.

REFERENCES:
patent: 6609871 (2003-08-01), Pfeiffer et al.
patent: 6719500 (2004-04-01), Pfeiffer et al.
patent: 6764253 (2004-07-01), Pfeiffer
patent: 7137759 (2006-11-01), Ambs
patent: 7191807 (2007-03-01), DeMaison et al.
patent: 7231947 (2007-06-01), Boroch et al.
patent: 2003/0081495 (2003-05-01), O'Callaghan
patent: 2005/0269369 (2005-12-01), Pfeiffer et al.
U.S. Appl. No. 10/862,573, filed Jun. 8, 2004, Anthony E. Boroch et al.
U.S. Appl. No. 10/858,206, filed Jun. 2, 2004, John W. Pfeiffer.

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