US4010809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weighing method
Assignee: Hobart Engineering Ltd
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Filing: 1975-11-25
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Granted: 1977-03-08
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Expires: 1995-11-25
Abstract
Abstract A method of weighing wherein an apparatus conveys irregular pieces of product to a grading device for separating the regular pieces into two fractions respectively containing relatively smaller-sized pieces and relatively larger-sized pieces. A second conveyor conveys the larger-sized pieces to a weighing device until a batch of the product is accumulated having a weight slightly less than the required batch weight, and a third conveyor adds smaller-sized pieces to the batch until the minimum batch weight is achieved.
Inventors
- 👤 Jack Hobart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:04
CPC Classifications
G; G01; G01G; G01G13/00; G01G13/02; G01G13/04; G01G13/08; Y; Y10; Y10S; Y10S177/00; Y10S177/11
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
141 words
A method of weighing a product made up of irregular pieces into a batch of predetermined weight, including grading a flow of the irregular pieces to separate a supply of smaller-sized pieces from the flow which will be more than adequate for making successive batches up to the predetermined weight, conveying the remaining flow of pieces towards a weighing device, delivering pieces from the remaining flow to the weighing device until a batch of the product is accumulated having a weight slightly less than said predetermined weight, separately conveying smaller-sized pieces from said supply towards the weighing device, adding the separately conveyed smaller-sized pieces to the batch until the said predetermined weight is just achieved, and allowing any excess accumulation of said smaller-sized pieces graded from the flow to be deposited in the remaining flow before it reaches the weighing device.
Claim 2
Independent Claim
141 words
A method of weighing a product made up of irregular pieces into a batch of predetermined weight, including grading a flow of the irregular pieces to separate a supply of smaller-sized pieces from the flow which will be more than adequate for making successive batches up to the predetermined weight, conveying the remaining flow of pieces towards a weighing device, delivering pieces from the remaining flow to the weighing device until a batch of the product is accumulated having a weight slightly less than said predetermined weight, separately conveying smaller-sized pieces from said supply towards the weighing device, adding the separately conveyed smaller-sized pieces to the batch until the said predetermined weight is just achieved, and allowing any excess accumulation of said smaller-sized pieces graded from the flow to be deposited in the remaining flow before it reaches the weighing device.
Claim 3
Dependent Claim
48 words
A method of weighing, as in claim 1, including sensing the rate at which smaller-sized pieces should be delivered from said supply for conveying towards said weighing device to maintain an optimum quantity of smaller-sized pieces available for use in making successive batches up to the predetermined weight.
Claim 4
Dependent Claim
73 words
A method of weighing, as in claim 1, in which the irregular pieces are graded by causing the irregular pieces to travel in a predetermined direction towards an end edge of a grading device product-supporting surface which decreases in width in said predetermined direction, whereby the smaller-sized pieces will fall off said end edge, and the remaining pieces will fall from said surface before reaching said end edge to define the remaining flow.
References Cited (Backward Citations)
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Cited
US2626042A
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US3117639A
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US3557889A
Cited
US3720276A
Cited
US3690391A
Cited
US3708025A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-07 | 1980-09-06 | 1981-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-07 | 1984-09-06 | 1985-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-07 | 1988-09-06 | 1989-03-08 | $7700.00 | Window Closed / Lapsed |