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US 8,274,001 B2Granted
Weighing apparatus having opposed wheels
AssigneeMettler-Toledo AG
InventorJohn Uber
Life of this patent
Estimating the term…
Abstract
Weighing apparatus for weighing and conveying items of various shape and size. The weighing apparatus apparatus includes at least two oppositely rotating wheels that engage an item to be weighed. A force measurement element, such as a load cell, is provided to weigh the item to be weighed while the item is conveyed by the wheels in a suspended position. More than one pair of wheels may be employed.
Claims32
A weighing apparatus comprising:
- a support structure;
- at least one pair of wheels suspended from said support structure, said wheels adjacently arranged and adapted to receive and engage items to be weighed as said items are conveyed past said at least one pair of wheels, such that said items will be supported in a suspended position during weighing and returned to a conveyor in substantially the same orientation as received by said at least one pair of wheels;
- a driving device for causing rotation of said wheels, one of said wheels rotating in a direction opposite to the direction of rotation of the other of said wheels, such that items are transported through said apparatus by rotation of said at least one pair of wheels;
- and
- a force measuring device associated with said at least one pair of wheels and adapted to determine the weights of items to be weighed while said items are suspended from said wheels.
2 more elements
A weighing apparatus comprising:
- a support structure;
- a driven portion including at least one pair of wheels suspended beneath said support structure on respective driveshafts, said wheels adjacently arranged and adapted to receive and engage items to be weighed as said items are conveyed past said at least one pair of wheels, such that said items will be supported in a suspended position during weighing and returned to a conveyor in substantially the same orientation as received by said at least one pair of wheels;
- a driving portion for causing opposite rotation of wheels in a given wheel pair such that items to be weighed are transported through said apparatus by rotation of said wheels, said driving portion including at least one drive motor associated with said at least one pair of wheels;
- and
- at least one force measuring device associated with said at least one pair of wheels and adapted to determine the weights of items to be weighed while said items are suspended from said at least one pair of wheels.
2 more elements
A weighing apparatus comprising:
- a support structure;
- a driven portion associated with said support structure and including at least one pair of wheels mounted on respective driveshafts, said wheels adjacently arranged and adapted to engage items to be weighed such that said items are supported in a suspended position during weighing;
- a driving portion, said driving portion including at least one drive motor coupled by a belt to a pulley on each driveshaft, said driving portion producing opposite rotation of wheels in a given wheel pair such that items to be weighed are transported through said apparatus by rotation of said wheels;
- and
- at least one force measuring device located between said support structure and a base, said at least one force measuring device associated with said at least one pair of wheels and adapted to determine the weights of items to be weighed while said items are suspended from said at least one pair of wheels.
2 more elements
A weighing apparatus comprising:
- a support structure;
- at least one pair of wheels, each of said wheels suspended on a driveshaft that extends downward from said support structure, said wheels adjacently arranged and adapted to engage items to be weighed such that said items are supported in a suspended position during weighing;
- a driving device for causing rotation of said wheels, one of said wheels rotating in a direction opposite to the direction of rotation of the other of said wheels, such that items are transported through said apparatus by rotation of said at least one pair of wheels;
- and
- a force measuring device associated with said at least one pair of wheels and adapted to determine the weights of items to be weighed while said items are suspended from said wheels.
2 more elements
A weighing apparatus comprising:
- a support structure;
- a plurality of wheel pairs suspended from said support structure, said wheel pairs arranged in succession along a path of travel of said items to be weighed and adapted to engage items to be weighed such that said items are supported in a suspended position during weighing;
- a driving device for causing rotation of said wheels, one of said wheels rotating in a direction opposite to the direction of rotation of the other of said wheels, such that items are transported through said apparatus by rotation of said at least one pair of wheels;
- and
- a force measuring device associated with said at least one pair of wheels and adapted to determine the weights of items to be weighed while said items are suspended from said wheels.
2 more elements
Dependencies are inferred from the claim text.