US3805903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo control system for filling machine weight setting
Assignee: Triangle Package Machinery Co
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Filing: 1972-05-02
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Granted: 1974-04-23
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Expires: 1992-05-02
Abstract
Abstract A servo system for controlling the weight of a charge of product dispensed by a filler to a package and for correcting weight variations of the product charge is provided wherein adjustment of the weight setting at the filler takes place after analyzing the weight of a relatively large number of packages, and determining that a predetermined number of packages have a weight which is below (or above) a preselected weight which weight is hereinafter referred to as the ''''servo reference weight,'''' in relation to a predetermined number of packages which have been weighed. Where a plurality of fillers are used the system also identifies the filler which filled the package being weighed so that the weight setting at the proper filler will be corrected when the selected relationship between the packages filled and those under (or over) the servo reference weight occurs. Where a bag making machine is also involved, the system will also maintain synchronism between the fillers and the checkweigher even though a bag fails to reach the checkweigher at the proper time from a given filler. When the number of packages under (or over) the servo reference weight reaches a selected number deemed to be excessive, then a weight correction will take place immediately regardless of the total number of packages which have been weighed. The weight analysis means will ignore a selected number of packages subsequent to a weight correction to allow a conveyor between the filler and the checkweigher to be cleared.
Inventors
- 👤 R Muskat
- 👤 R Connors
- 👤 K Klopfenstein
- 👤 M Stachnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:51
CPC Classifications
G; G01; G01G; G01G15/00
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
208 words
A servo control system for a package filling machine weight setting, wherein a series of packages being filled and weighed will have an average weight as well as upper and lower extreme weights, comprising: a. a filler for dispensing a charge of product to fill a package in accordance with a predetermined weight setting, b. adjusting means for adjusting said weight setting, c. checkweighing means for weighing the packages after they are filled, d. analysis means associated with said checkweighing means having a servo reference weight setting between the average weight of the series of packages being weighed and one of the extreme weights of said series, and including, 1. a first counting means to count all of the packages being weighed by said weighing means, and 2. a second counting means to count the number of packages weighed by said checkweighing means which are between the servo reference weight setting and one of its associated extreme weights, e. computer means programmed to detect certain predetermined relationships between the package counts in said first and second counting means, and f. weight correction feedback means operable in response to the detection of certain ones of said relationships to originate a package weight correction signal and actuate said adjusting means.
Claim 2
Dependent Claim
208 words
A servo control system for a package filling machine weight setting, wherein a series of packages being filled and weighed will have an average weight as well as upper and lower extreme weights, comprising: a. a filler for dispensing a charge of product to fill a package in accordance with a predetermined weight setting, b. adjusting means for adjusting said weight setting, c. checkweighing means for weighing the packages after they are filled, d. analysis means associated with said checkweighing means having a servo reference weight setting between the average weight of the series of packages being weighed and one of the extreme weights of said series, and including, 1. a first counting means to count all of the packages being weighed by said weighing means, and 2. a second counting means to count the number of packages weighed by said checkweighing means which are between the servo reference weight setting and one of its associated extreme weights, e. computer means programmed to detect certain predetermined relationships between the package counts in said first and second counting means, and f. weight correction feedback means operable in response to the detection of certain ones of said relationships to originate a package weight correction signal and actuate said adjusting means.
Claim 3
Dependent Claim
80 words
a second counting means to count the number of packages weighed by said checkweighing means which are between the servo reference weight setting and one of its associated extreme weights, e. computer means programmed to detect certain predetermined relationships between the package counts in said first and second counting means, and f. weight correction feedback means operable in response to the detection of certain ones of said relationships to originate a package weight correction signal and actuate said adjusting means.
Claim 4
Dependent Claim
80 words
a second counting means to count the number of packages weighed by said checkweighing means which are between the servo reference weight setting and one of its associated extreme weights, e. computer means programmed to detect certain predetermined relationships between the package counts in said first and second counting means, and f. weight correction feedback means operable in response to the detection of certain ones of said relationships to originate a package weight correction signal and actuate said adjusting means.
Claim 5
Dependent Claim
33 words
A servo control system as defined in claim 1, including further, means to originate a package weight correction signal immediately upon said second counting means reaching a predetermined count regardless of said relationship.
Claim 6
Dependent Claim
16 words
the count present in said second counting means is above a second predetermined number of packages.
Claim 7
Dependent Claim
16 words
the count present in said second counting means is above a second predetermined number of packages.
Claim 8
Dependent Claim
40 words
the count present in said second counting means is below a first predetermined number of packages, and g. a second logic means operable to originate a weight correction signal to actuate said adjusting means to increase said weight setting when
Claim 9
Dependent Claim
40 words
the count present in said second counting means is below a first predetermined number of packages, and g. a second logic means operable to originate a weight correction signal to actuate said adjusting means to increase said weight setting when
Claim 10
Dependent Claim
46 words
said second counting means registers a number less than a first predetermined number, and h. third logic means operable immediately to originate a weight correction signal when said second counting means reaches a second predetermined number regardless of the number registered by said first counting means.
Claim 11
Dependent Claim
46 words
said second counting means registers a number less than a first predetermined number, and h. third logic means operable immediately to originate a weight correction signal when said second counting means reaches a second predetermined number regardless of the number registered by said first counting means.
Claim 12
Dependent Claim
73 words
a second counting means to count the number of packages weighed by said checkweighing means which are below said servo reference weight setting, e. computer means programmed to detect certain predetermined relationships between the package counts in said first and second counting means, and f. weight correction feedback means operable in response to the detection of certain ones of said relationships to originate a package weight correction signal and actuate said adjusting means.
Claim 13
Dependent Claim
73 words
a second counting means to count the number of packages weighed by said checkweighing means which are below said servo reference weight setting, e. computer means programmed to detect certain predetermined relationships between the package counts in said first and second counting means, and f. weight correction feedback means operable in response to the detection of certain ones of said relationships to originate a package weight correction signal and actuate said adjusting means.
Claim 14
Dependent Claim
43 words
A servo control system as defined in claim 1, including further, means to interrupt the functioning of said second counting means during the counting of a predetermined number of packages by said first counting means after a weight correction signal has been originated.
Claim 15
Dependent Claim
88 words
A servo control system for a package filling machine weight setting comprising: a. a filler for dispensing a charge of product to fill a package in accordance with a predetermined weight setting, b. adjusting means for adjusting said weight setting, c. checkweighing mEans for weighing the packages after they are filled, d. analysis means associated with said checkweighing means having a servo reference weight setting between the average weight of a series of packages being checkweighed and the lowest weight of a package in said series, and including
Claim 16
Dependent Claim
88 words
A servo control system for a package filling machine weight setting comprising: a. a filler for dispensing a charge of product to fill a package in accordance with a predetermined weight setting, b. adjusting means for adjusting said weight setting, c. checkweighing mEans for weighing the packages after they are filled, d. analysis means associated with said checkweighing means having a servo reference weight setting between the average weight of a series of packages being checkweighed and the lowest weight of a package in said series, and including
Claim 17
Dependent Claim
33 words
A servo control system as defined in claim 4, including further, means to originate a package weight correction signal immediately upon said second counting means reaching a predetermined count regardless of said relationship.
Claim 18
Dependent Claim
43 words
A servo control system as defined in claim 4, including further, means to interrupt the functioning of said second counting means during the counting of a predetermined number of packages by said first counting means after a weight correction signal has been originated.
Claim 19
Dependent Claim
132 words
A servo control system for a package filling machine weight setting comprising: a. a filler for dispensing a charge of product to fill a package in accordance with a predetermined weight setting, b. adjusting means for adjusting said weight setting, c. checkweighing means for the packages, d. conveying means for conveying filled packages to said checkweighing means from said filler, e. weight correction feedback means associated with said checkweighing means operable to originate a package weight correction signal and actuate said adjusting means, and f. means operable after actuation of said adjusting means for interrupting the functioning of said feedback means for a predetermined interval sufficient to allow said conveying means to convey to said checkweighing means at least a portion of all packages filled prior to actuation of said adjusting means.
Claim 20
Dependent Claim
132 words
A servo control system for a package filling machine weight setting comprising: a. a filler for dispensing a charge of product to fill a package in accordance with a predetermined weight setting, b. adjusting means for adjusting said weight setting, c. checkweighing means for the packages, d. conveying means for conveying filled packages to said checkweighing means from said filler, e. weight correction feedback means associated with said checkweighing means operable to originate a package weight correction signal and actuate said adjusting means, and f. means operable after actuation of said adjusting means for interrupting the functioning of said feedback means for a predetermined interval sufficient to allow said conveying means to convey to said checkweighing means at least a portion of all packages filled prior to actuation of said adjusting means.
Claim 21
Dependent Claim
144 words
A servo control system for a package filling machine weight setting, comprising: a. a filler for dispensing a charge of product to fill a package in accordance with a predetermined weight setting, b. adjusting means for adjusting said weight setting, c. checkweighing means for the packages having associated therewith a servo reference weight setting, d. a first counting means to count all of the packages being weighed by said checkweighing means, e. a second counting means to count the number of packages weighed by said checkweighing means which are under said servo reference weight setting, f. first logic means operable to originate a weight correction signal based upon the count then present in said second counting means when said first counting means reaches the higher one of two predetermined number of packages, g. second logic means operable to originate a weight correction signal when
Claim 22
Dependent Claim
144 words
A servo control system for a package filling machine weight setting, comprising: a. a filler for dispensing a charge of product to fill a package in accordance with a predetermined weight setting, b. adjusting means for adjusting said weight setting, c. checkweighing means for the packages having associated therewith a servo reference weight setting, d. a first counting means to count all of the packages being weighed by said checkweighing means, e. a second counting means to count the number of packages weighed by said checkweighing means which are under said servo reference weight setting, f. first logic means operable to originate a weight correction signal based upon the count then present in said second counting means when said first counting means reaches the higher one of two predetermined number of packages, g. second logic means operable to originate a weight correction signal when
Claim 23
Dependent Claim
44 words
A servo control system as defined in claim 8, including a fourth logic means operable to interrupt the functioning of said second counting means for a predetermined number of packages counted by said first counting means after a weight correction signal has been originated.
Claim 24
Dependent Claim
118 words
A servo control system for a package filling machine weight setting comPrising: a. a filler for dispensing a charge of product to fill a package in accordance with a predetermined weight setting, b. adjusting means for adjusting said weight setting, c. checkweighing means for the packages having associated therewith a servo reference weight setting, d. a first counting means to count all of the packages being weighed by said checkweighing means, e. a second counting means for counting the number of packages weighed by said checkweighing means which are under the servo reference weight setting, f. a first logic means operable to originate a weight correction signal to actuate said adjusting means to decrease said weight setting when
Claim 25
Dependent Claim
118 words
A servo control system for a package filling machine weight setting comPrising: a. a filler for dispensing a charge of product to fill a package in accordance with a predetermined weight setting, b. adjusting means for adjusting said weight setting, c. checkweighing means for the packages having associated therewith a servo reference weight setting, d. a first counting means to count all of the packages being weighed by said checkweighing means, e. a second counting means for counting the number of packages weighed by said checkweighing means which are under the servo reference weight setting, f. a first logic means operable to originate a weight correction signal to actuate said adjusting means to decrease said weight setting when
Claim 26
Dependent Claim
59 words
A servo control system as defined in claim 10, including a third logic means operable to originate a weight correction signal to actuate said adjusting means to decrease said weight setting when said first counting means reaches a second predetermined count, and when the count present in said second counting means is below a third predetermined number of packages.
Claim 27
Dependent Claim
55 words
A servo control system as defined in claim 10, including a further logic means to originate a weight correction signal to actuate said adjusting means to increase said weight setting immediately when said second counting means exceeds a further predetermined number of packages regardless of the number of packages counted by said first counting means.
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) | 1977-04-22 | 1977-10-22 | 1978-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-22 | 1981-10-22 | 1982-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-22 | 1985-10-22 | 1986-04-23 | $7700.00 | Window Closed / Lapsed |