Patent US3861479A successfully refreshed from Google Patents.
US3861479A
Expired / Lapsed
US
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Tare entry circuitry for a computing scale
Assignee: Reliance Electric Co
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Filing: 1974-04-17
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Granted: 1975-01-21
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Expires: 1994-04-17
Abstract
Abstract Improved apparatus for weighing and computing a value for articles. An integrated circuit microcomputer is supplied with the gross article weight from a scale and with price per unit weight data from a manual keyboard. Tare weight data may be entered either through the manual keyboard or automatically from the scale. The microcomputer computes a net weight and a value for each weighed article. The net weight, the price per unit weight and the value are indicated on a digital display and may be printed on a label. Filtering circuitry prevents jitter in the article weight supplied from the scale to the microcomputer and the display caused by small vibrations in the article or the scale.
Inventors
- 👤 Edward G Pryor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:56
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/40; G01G19/413; G01G19/414; G01G19/415
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
161 words
A computing scale comprising, in combination, weighing scale means for generating a digital weight signal, a first digital memory, data input means having a plurality of digit keys for supplying data to said first memory and having a tare entry key, timing means for measuring a predetermined time interval, means rEsponsive to the closure of any of said digit keys for starting said timing means, a second digital memory for storing a tare weight, means responsive to the closure of said tare entry key while said timer is on for shifting at least one digit from said first memory into said second memory, means responsive to the closure of said tare entry key while said timer is off for storing the digital weight signal from said scale means in said second memory, and means responsive to said digital weight signal and to the contents of said second memory for computing a net weight of an article weighed on said scale means.
Claim 2
Dependent Claim
161 words
A computing scale comprising, in combination, weighing scale means for generating a digital weight signal, a first digital memory, data input means having a plurality of digit keys for supplying data to said first memory and having a tare entry key, timing means for measuring a predetermined time interval, means rEsponsive to the closure of any of said digit keys for starting said timing means, a second digital memory for storing a tare weight, means responsive to the closure of said tare entry key while said timer is on for shifting at least one digit from said first memory into said second memory, means responsive to the closure of said tare entry key while said timer is off for storing the digital weight signal from said scale means in said second memory, and means responsive to said digital weight signal and to the contents of said second memory for computing a net weight of an article weighed on said scale means.
Claim 3
Dependent Claim
23 words
A computing scale, as set forth in claim 1, and including means for clearing said first digital memory after said timer turns off.
Claim 4
Dependent Claim
58 words
A computing scale, as set forth in claim 1, wherein said means responsive to the closure of said tare entry key while said timer is on shifts only the last digit stored in said first memory to said second memory, and including means for clearing said first memory after such last digit is shifted to said second memory.
Claim 5
Dependent Claim
173 words
In weighing and value computing apparatus having a scale for generating digital data corresponding to the weight of an article and a keyboard having a plurality of digit keys for manually entering digits of price and tare weight data and a tare entry key, circuitry for storing data in price and tare weight memories comprising, in combination, a temporary tare weight register, means responsive to the closure of one of said digit keys for shifting such digit into both said price memory and said temporary tare weight register, timing means for measuring a predetermined time interval, means responsive to the closure of any of said digit keys for starting said timing means, means responsive to the closure of said tare entry key while said timer is on for shifting at least one digit from said temporary tare weight register into said tare weight memory, and means responsive to the closure of said tare entry key while said timer is off for storing digital weight data from said scale in said tare weight memory.
Claim 6
Dependent Claim
173 words
In weighing and value computing apparatus having a scale for generating digital data corresponding to the weight of an article and a keyboard having a plurality of digit keys for manually entering digits of price and tare weight data and a tare entry key, circuitry for storing data in price and tare weight memories comprising, in combination, a temporary tare weight register, means responsive to the closure of one of said digit keys for shifting such digit into both said price memory and said temporary tare weight register, timing means for measuring a predetermined time interval, means responsive to the closure of any of said digit keys for starting said timing means, means responsive to the closure of said tare entry key while said timer is on for shifting at least one digit from said temporary tare weight register into said tare weight memory, and means responsive to the closure of said tare entry key while said timer is off for storing digital weight data from said scale in said tare weight memory.
Claim 7
Dependent Claim
38 words
Circuitry for storing data in price and tare weight memories in weighing and value computing apparatus, as set forth in claim 4, and including means responsive to closure of said tare entry key for clearing said price memory.
Claim 8
Dependent Claim
37 words
Circuitry for storing data in price and tare weight memories in weighing and value computing apparatus, as set forth in claim 5, and including means for clearing said temporary tare weight register after said timer turns off.
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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) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |