Weighing scales – Shock absorber – damper – Electrical or magnetic
Reexamination Certificate
2005-11-08
2005-11-08
Gibson, Randy W. (Department: 2841)
Weighing scales
Shock absorber, damper
Electrical or magnetic
C177S199000, C177S200000, C177S2100FP
Reexamination Certificate
active
06963036
ABSTRACT:
The static or dynamic weighing apparatus for weighing an object or item, comprising a weighing assembly that includes a base with four (4) load cells attached to it, two (2) active load cells and two (2) passive load cells. Each active load cell has a mounting side and a weighing side. They are mounted to the base and to each other via a rigid weighing platform and are rotated 180° with respect to each other in the horizontal plane, thereby generating respective inverse error signals when an object or item is placed on or passes over the weighing platform. The two (2) passive load cells are mounted in the same manner. A combination of the voltage outputs from each of the respective two (2) load cells pairs negates all horizontally and vertically induced errors thus yielding a highly accurate two (2) times normal weight signal of the object or item being weighed. Error voltages felt by the passive assembly, representing any present vertical vibration, is removed via electrical circuitry from the actual active weighing voltage output, resulting in a true weight of the object or item being weighed. The resulting output voltage over the designated time interval then represents the true weight of the object or item being weighed. A voltage-to-frequency converter is employed to transmit the corrected true frequency output due to the actual analog output voltage resulting from the active weight being measured to a binary counter over a pre-specified time period. By counting a pulse train that varies directly to the applied voltage over a specified period of time results in a natural averaging weight and the resulting count is the average and true count of the representative weight of the object or item being weighed.
REFERENCES:
patent: 3446299 (1969-05-01), Leonowicz
patent: 3589457 (1971-06-01), Joos
patent: 3731754 (1973-05-01), Godwin et al.
patent: 4102421 (1978-07-01), Ozaki et al.
patent: 4212361 (1980-07-01), Stocker
patent: 4417631 (1983-11-01), Johnson
patent: 4593778 (1986-06-01), Konishi et al.
patent: 4624331 (1986-11-01), Naito
patent: 4926359 (1990-05-01), Konishi et al.
patent: 4961533 (1990-10-01), Teller et al.
patent: 5117929 (1992-06-01), Nakamura et al.
patent: 5646375 (1997-07-01), Neuman
patent: 5700982 (1997-12-01), Neuman
patent: 5736685 (1998-04-01), Nakajima
patent: 5789713 (1998-08-01), Wakasa et al.
patent: 5991676 (1999-11-01), Podoloff et al.
patent: 6013879 (2000-01-01), Nakamura et al.
patent: 6284987 (2001-09-01), Al-Modiny
patent: 6307165 (2001-10-01), Komoto
patent: 6313415 (2001-11-01), Maher et al.
Gibson Randy W.
Vigil Thomas R.
Welsh & Katz Ltd.
LandOfFree
Accurate, high speed weighing apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Accurate, high speed weighing apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Accurate, high speed weighing apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3497986