| US 7,530,729 B2 | ||
| Blenders | ||
| James Joseph O'Callaghan, Dundalk (Ireland) | ||
| Assigned to Vervant Limited, Dublin (Ireland) | ||
| Filed on Jul. 18, 2007, as Appl. No. 11/826,836. | ||
| Application 11/826836 is a continuation of application No. 10/971697, filed on Oct. 25, 2004, abandoned. | ||
| Application 10/971697 is a continuation of application No. 10/265120, filed on Oct. 07, 2002, abandoned. | ||
| Claims priority of application No. S2001/0881 (IE), filed on Oct. 05, 2001. | ||
| Prior Publication US 2008/0049546 A1, Feb. 28, 2008 | ||
| Int. Cl. B01F 15/02 (2006.01); G01D 13/02 (2006.01); B65B 1/30 (2006.01) | ||
| U.S. Cl. 366—132 [366/141; 366/163.1; 366/163.2; 222/55; 222/56; 222/77; 141/83] | 14 Claims |
| 1. A material transfer device, including:
a pipe defining a material delivery path,
the pipe having a material inlet and a material discharge outlet,
means for delivering a gas stream along the material delivery path directed towards the outlet,
control means for controlling the gas stream for controlling delivery of material through the pipe,
said control means being operable for pulsing the gas stream for controlling delivery of material through the pipe in discrete
amounts,
said control means being operable to deliver a target quantity of material through the pipe in a pulse,
means for measuring the actual quantity of material delivered through the pipe by said pulse, said measuring means being connected
to the control means,
the control means being operable to compare the actual quantity of material delivered by said pulse with the target quantity
of material and adjust the next pulse in response to the difference between the measured actual quantity and the target quantity
of material to achieve delivery of the target quantity material in the next pulse.
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