Combination weigher

Details Combination weigher Combination weigher

2005-11-09

2009-08-25

Gibson, Randy W (Department: 2841)

Weighing scales

Computer

Electrical

C053S493000, C053S502000, C053S075000

Reexamination Certificate

active

07579558

ABSTRACT:
A combination weigher of the present invention has a relationship with the packaging machine in which, a bag accommodating time required to accommodate the objects to be weighed falling from the collecting hopper (4) into the bag in a case where the gate of the collecting hopper (4) is always kept open, is longer than a seal stopping time after completion of sealing a lower end of any one of the bags successively manufactured by the packaging machine (21) before start of sealing an upper end of the bag, wherein the control unit (10) causes the gate of the collecting hopper (4) to be closed immediately before any portion of the objects to be weighed discharged from the weighing hoppers (1) arrives at the collecting hopper (4) at the latest, and causes the gate of the collecting hopper (4) to be opened before all of the objects to be weighed arrive at the collecting hopper (4) and after a specified time that elapses from when the gate of the collecting hopper (4) is closed, such that by keeping the gate of the collecting hopper closed for the specified time, the bag accommodating time is reduced to be equal to or less than the seal stopping time of the packaging machine.

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patent: 5-99732 (1993-04-01), None
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patent: 3028384 (2002-02-01), None
International Search Report for PCT/JP2005/020502, dated Dec. 1, 2005.

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