US4366872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weighing controlling flow rate with taring between weighings
Assignee: Individual
•
Filing: 1980-09-26
•
Granted: 1983-01-04
•
Expires: 2000-09-26
Abstract
Abstract A weighpan is controlled by a microprocessor to tare itself between successive weighings and the microprocessor resets the weight at which supply to the weighpan is regulated in accordance with a shortfall or excess delivered on previous weighings.
Inventors
- 👤 David Brunnschweiler
- 👤 Barrie Sedgely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:56
CPC Classifications
G; G01; G01G; G01G13/00; G01G13/02; G01G13/12; G01G13/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
107 words
A method for regulating the continuous supply of material, comprising the steps of: taring a weighpan; loading a first quantity of material in said weighpan; comparing the weight of said first quantity with a desired weight and determining the difference; discharging said first quantity to a subsequent process requiring a consistent quantity of said material per unit time; taring said weighpan; determining a second quantity based upon comparing said difference and said desired quantity; loading said second quantity of material in said weighpan; discharging said second quantity to said process; and repeating the above steps whereby a consistent quantity of material is delivered to said subsequent process.
Claim 2
Independent Claim
107 words
A method for regulating the continuous supply of material, comprising the steps of: taring a weighpan; loading a first quantity of material in said weighpan; comparing the weight of said first quantity with a desired weight and determining the difference; discharging said first quantity to a subsequent process requiring a consistent quantity of said material per unit time; taring said weighpan; determining a second quantity based upon comparing said difference and said desired quantity; loading said second quantity of material in said weighpan; discharging said second quantity to said process; and repeating the above steps whereby a consistent quantity of material is delivered to said subsequent process.
Claim 3
Independent Claim
98 words
A method for regulating the continuous supply of material, comprising the steps of: taring a weighpan; loading a first quantity of material in said weighpan in a first unit of time; comparing the weight said first quantity with a desired weight and determining the difference; discharging said first quantity to a subsequent process requiring a consistent quantity of said material per unit time; after a second period of time, repeating the above steps while varying said second period of time based upon said difference, whereby a consistent quantity of material over time is delivered to said subsequent process.
Claim 4
Independent Claim
98 words
A method for regulating the continuous supply of material, comprising the steps of: taring a weighpan; loading a first quantity of material in said weighpan in a first unit of time; comparing the weight said first quantity with a desired weight and determining the difference; discharging said first quantity to a subsequent process requiring a consistent quantity of said material per unit time; after a second period of time, repeating the above steps while varying said second period of time based upon said difference, whereby a consistent quantity of material over time is delivered to said subsequent process.
References Cited (Backward Citations)
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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) | 1986-01-03 | 1986-07-05 | 1987-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-03 | 1990-07-05 | 1991-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-03 | 1994-07-05 | 1995-01-04 | $7700.00 | Window Closed / Lapsed |