Weighing scales – With weigher loading or unloading means
Patent
1988-03-21
1989-04-04
Miller, Jr., George H.
Weighing scales
With weigher loading or unloading means
177262, 198698, 209592, G01G 1900, G01G 2122, B65G 1544, B07C 516
Patent
active
048177440
ABSTRACT:
A simple and inexpensive method and apparatus are provided for weighing product, such as fruits and vegetables, with a separate, simple yet effective method and apparatus for sorting fruits and vegetables having the same characteristics. The weighing apparatus includes a pair of chains having inwardly extending pins engaging vertically elongated slots in lubricating plastic hour glass shaped roller segments. A flat bottom portion of each roller segment engages three rails of a stationary track while the pins engage the elongated slots and move the roller segments over the weighing mechanism. Two or more roller segments engage a fruit or vegetable at the same time, and the stationary track is notched at a load cell so that all of the roller segments supporting a fruit or vegetable operatively engage the load cell at the same time. The product sorter includes a contoured supporting base with a flexible belt on the base and in sliding engagement with it. The flexible belt includes a number of fingers spaced from each other in the dimension of conveyance. The belt may be formed in two sections, one having a roughened surface or shallow flights for engaging the fruits or vegetables. A number of ejectors, each comprising a rotary solenoid with a flipper, are spaced along the length of the supporting base to flex fingers of the belt and move a fruit or vegetable off of the belt and base when actuated.
REFERENCES:
patent: 3489278 (1970-01-01), Alexander
patent: 4106628 (1978-08-01), Warkentin et al.
patent: 4281764 (1981-08-01), Fowler, Jr.
patent: 4351429 (1982-09-01), Garrey
patent: 4482061 (1984-11-01), Leverett
patent: 4595091 (1986-06-01), Scopatz et al.
patent: 4660665 (1987-04-01), Powell
Miller Jr. George H.
Powell Machinery Inc.
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