Patent US4392535A successfully refreshed from Google Patents.
US4392535A
Expired / Lapsed
US
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Zero-point adjusting method for automatic weighing apparatus
Assignee: Toshiba TEC Corp
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Filing: 1982-03-08
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Granted: 1983-07-12
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Expires: 2002-03-08
Abstract
Abstract In an automatic weighing apparatus wherein a weight measurement is performed by passing a commodity on a weighing conveyor which is coupled so as to become a load of a load cell, and a label on which data based on the measured value are printed is automatically stuck to the commodity, while a print fixing label in which a print content is fixed can also be issued; the zero-point setting is automatically performed at times when the commodity does not exist on the weighing conveyor, so as to execute in a stable state a measurement having an accurate reference point.
Inventors
- 👤 Kunihiko Fujii
- 👤 Yukihiro Hirosaki
- 👤 Yoshihisa Nishiyama
- 👤 Koichiro Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:45
CPC Classifications
G; G01; G01G; G01G23/00; G01G23/14; G01G11/00; G01G11/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
181 words
An automatic weighing method, comprising the steps of: moving the object to be weighed on three consecutive conveyers; sensing the presence or absence of the object on each of the three conveyers; controlling the first conveyer in accordance with the presence of the object on the second conveyer to prevent the passage of additional objects onto the second conveyer when the object is present on the second conveyer; weighing the second conveyer while said object is absent from the second conveyer and producing a first weight signal by means of a load cell; weighing the second conveyer and said object while said object is present on the second conveyer and producing a second weight signal by means of a load cell; storing a zero point weight on the basis of the first weight signal as an indication of the tare weight of the second conveyer; setting the weight of the object into a register on the basis of the second weight signal and the zero point weight; and, labeling said object with the weight label while present on the third conveyer.
Claim 2
Dependent Claim
181 words
An automatic weighing method, comprising the steps of: moving the object to be weighed on three consecutive conveyers; sensing the presence or absence of the object on each of the three conveyers; controlling the first conveyer in accordance with the presence of the object on the second conveyer to prevent the passage of additional objects onto the second conveyer when the object is present on the second conveyer; weighing the second conveyer while said object is absent from the second conveyer and producing a first weight signal by means of a load cell; weighing the second conveyer and said object while said object is present on the second conveyer and producing a second weight signal by means of a load cell; storing a zero point weight on the basis of the first weight signal as an indication of the tare weight of the second conveyer; setting the weight of the object into a register on the basis of the second weight signal and the zero point weight; and, labeling said object with the weight label while present on the third conveyer.
Claim 3
Dependent Claim
28 words
An automatic weighing method, according to claim 1, further comprising: fixing the print for said weight label, wherein said conveyers continue to move during the step of fixing.
Claim 4
Dependent Claim
21 words
An automatic weighing method, according to claim 1 or 2, wherein said load cells is operative during the step of fixing.
Claim 5
Dependent Claim
24 words
An automatic weighing method, according to claim 3, wherein the step of setting a zero into said register occurs during the step of fixing.
Claim 6
Dependent Claim
21 words
An automatic weighing method, according to claim 1, further comprising: sounding an alarm if the weight measured exceeds a predetermined limit.
Claim 7
Dependent Claim
214 words
An automatic weighing apparatus comprising: a first conveyer for bringing in a commodity; a second conveyer for receiving the commodity from said first conveyer; a third conveyer for receiving the commodity from said second conveyer; first, second and third sensors each disposed adjacent to one of the three conveyers and having an output for indicating when a commodity is present on the adjacent conveyer; control means for preventing the transfer of additional commodities from the first conveyer to the second conveyer when the second sensor indicates the presence of the commodity on the second conveyer; means connected to said second conveyer for weighing the commodity and said second conveyer and producing a weight signal; first storage means for receiving a first weight signal when the second sensor indicates the absence of the commodity on the second conveyer and storing a zero point weight in response thereto; second storage means for receiving a second weight signal when the second sensor indicates the presence of the commodity on the second conveyer and storing a commodity weight on the basis of the second weight signal and the zero point weight; labeling means positioned adjacent to said third conveyer so as to apply a label indicating the commodity weight to the commodity while carried by said third conveyer.
Claim 8
Dependent Claim
214 words
An automatic weighing apparatus comprising: a first conveyer for bringing in a commodity; a second conveyer for receiving the commodity from said first conveyer; a third conveyer for receiving the commodity from said second conveyer; first, second and third sensors each disposed adjacent to one of the three conveyers and having an output for indicating when a commodity is present on the adjacent conveyer; control means for preventing the transfer of additional commodities from the first conveyer to the second conveyer when the second sensor indicates the presence of the commodity on the second conveyer; means connected to said second conveyer for weighing the commodity and said second conveyer and producing a weight signal; first storage means for receiving a first weight signal when the second sensor indicates the absence of the commodity on the second conveyer and storing a zero point weight in response thereto; second storage means for receiving a second weight signal when the second sensor indicates the presence of the commodity on the second conveyer and storing a commodity weight on the basis of the second weight signal and the zero point weight; labeling means positioned adjacent to said third conveyer so as to apply a label indicating the commodity weight to the commodity while carried by said third conveyer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-11 | 1987-01-10 | 1987-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-11 | 1991-01-10 | 1991-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-11 | 1995-01-10 | 1995-07-12 | $7700.00 | Window Closed / Lapsed |