Method and apparatus for weighing moving articles

Details Method and apparatus for weighing moving articles Method and apparatus for weighing moving articles

2008-08-14

2010-10-26

Gibson, Randy W (Department: 2841)

Weighing scales

Processes

C177S025150, C702S175000, C705S414000

Reexamination Certificate

active

07820923

ABSTRACT:
A weigh-on-the-fly WOF module for weighing a mail piece as it is being sorted by a mail sort machine. The piece is delivered to entry pinch rollers in the WOF module which, in turn, deliver the piece into pinch at an acceleration roller. The thickness of the piece is measured the pinch at the acceleration roller is adjusted to reduce drag on the mail piece during acceleration. The acceleration roller is driven by a constant torque motor at a first known or measured velocity V1which is increased to second known or measured velocity V2when the mail piece arrives. The time of acceleration from V1to V2is measured. Once the velocities and the time of acceleration are known, the weigh of that particular mail piece can be calculated using the formula:in-line-formulae description="In-line Formulae" end="lead"?F=main-line-formulae description="In-line Formulae" end="tail"?whereinF=force or torquem=mass or weight; anda=acceleration or (V2−V1)/time.

REFERENCES:
patent: 3648839 (1972-03-01), Bradshaw et al.
patent: 3834474 (1974-09-01), Knol
patent: 5393939 (1995-02-01), Nasuta, Jr. et al.
patent: 5610372 (1997-03-01), Phillips et al.
patent: 6107579 (2000-08-01), Kinnemann
patent: 6940025 (2005-09-01), Solomon
patent: 7430491 (2008-09-01), Gutierrez et al.
patent: 7687727 (2010-03-01), Turner
patent: 2009/0216487 (2009-08-01), Streder et al.

Affiliated with

Also associated with

Rating

Method and apparatus for weighing moving articles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for weighing moving articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for weighing moving articles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4163044