US3557951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scale grading means
Assignee: Individual
•
Filing: 1968-09-16
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Granted: 1971-01-26
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Expires: 1988-09-16
Abstract
Abstract A scale-grading means for grading articles such as eggs according to weight comprising a conveyor continuously movable in a closed path and passing a plurality of grading stations, the conveyor carrying a plurality of article weighers, each article weigher including a cradle which supports an article and an ejector which is adapted to eject the article from the cradle. Each of the grading stations includes magnetic means which operates the ejector of the cradle depending on the weight of the article in the cradle, the magnetic means at each station causing the ejection of an article of different weight so that articles of substantially the same weight are ejected at the same station thereby grading the articles according to weight.
Inventors
- 👤 Boris Knisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:46
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/16; B07C5/24
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
90 words
A scale-grading means comprising a support, an article weigher mounted on said support, said weigher including a cradle adapted to hold an article therein and an ejector extending across said craDle for ejecting an article from the cradle, means for moving said support past a plurality of grader stations, and means at each of said grader stations for actuating said ejector so as to eject the article from the cradle depending on the weight of the article, the ejector actuating means at each grader station ejecting articles of different weights.
Claim 2
Dependent Claim
90 words
A scale-grading means comprising a support, an article weigher mounted on said support, said weigher including a cradle adapted to hold an article therein and an ejector extending across said craDle for ejecting an article from the cradle, means for moving said support past a plurality of grader stations, and means at each of said grader stations for actuating said ejector so as to eject the article from the cradle depending on the weight of the article, the ejector actuating means at each grader station ejecting articles of different weights.
Claim 3
Dependent Claim
135 words
A scale-grading means comprising a support, an article weigher mounted on said support, said weigher including a cradle adapted to hold an article therein and an ejector adapted to eject an article from the cradle, means for moving said support past a plurality of grader stations, and means at each of said grader stations for actuating said ejector so as to eject the article from the cradle depending on the weight of the article, the ejector actuating means at each grader station ejecting articles of different weights, the ejector-actuating means at each station being an electromagnet which actuates the ejector if the magnetic force created by the electromagnet is greater than the force applied to the ejector by the weight of the article, the electromagnets at the various stations providing magnetic forces of different magnitudes.
Claim 4
Dependent Claim
135 words
A scale-grading means comprising a support, an article weigher mounted on said support, said weigher including a cradle adapted to hold an article therein and an ejector adapted to eject an article from the cradle, means for moving said support past a plurality of grader stations, and means at each of said grader stations for actuating said ejector so as to eject the article from the cradle depending on the weight of the article, the ejector actuating means at each grader station ejecting articles of different weights, the ejector-actuating means at each station being an electromagnet which actuates the ejector if the magnetic force created by the electromagnet is greater than the force applied to the ejector by the weight of the article, the electromagnets at the various stations providing magnetic forces of different magnitudes.
Claim 5
Dependent Claim
74 words
The means in accordance with claim 2 in which the ejector is an arm pivotally mounted at one end of the support and extending across the cradle, and a piece of magnetic metal is secured to the other end of the arm, said metal piece being adapted to be attracted by the magnetic force of the electromagnet at a grader station so as to pivot the arm and eject an article from the cradle.
Claim 6
Dependent Claim
74 words
The means in accordance with claim 3 in which the cradle comprises a pair of V-shaped arms connected together in spaced parallel relation, said cradle arms being pivotally mounted on the support at the apexes of the arms with the arms extending upwardly, and the ejector arm extends between and parallel to the cradle arms, the cradle supports an article with the article being seated across the cradle arms and against the ejector arm.
Claim 7
Dependent Claim
22 words
The means in accordance with claim 4 including means mounted on said support and limiting the pivotal movement of the ejector arm.
Claim 8
Dependent Claim
47 words
The means in accordance with claim 4 in which each of the grader stations includes a switch for actuating the electromagnet, and the cradle has a switch-operating arm extending therefrom and means on the switch-operating arm to actuate the switch as the support reaches the grader station.
Claim 9
Dependent Claim
38 words
The means in accordance with claim 6 in which the means for moving the support comprises a continuously moving conveyor extending in a closed path, and a plurality of supports are mounted in spaced relation along the conveyor.
Claim 10
Dependent Claim
23 words
The means in accordance with claim 7 in which each support has a plurality of article weighers mounted thereon in spaced side-by-side relation.
Claim 11
Dependent Claim
38 words
The means in accordance with claim 8 in which each grader station has a plurality of electromagnets equal in number to the number of article weighers on a support, and each electromagnet has a separate magnetically actuated switch.
Claim 12
Dependent Claim
60 words
A scale-grading means comprising a support, an article weigher mounted on said support, said weigher including a cradle adapted to hold an article therein and an ejector extending across said cradle for ejecting an article from the cradle, and means for actuating said ejector so as to eject the article from the cradle depending on the weight of the article.
Claim 13
Dependent Claim
60 words
A scale-grading means comprising a support, an article weigher mounted on said support, said weigher including a cradle adapted to hold an article therein and an ejector extending across said cradle for ejecting an article from the cradle, and means for actuating said ejector so as to eject the article from the cradle depending on the weight of the article.
Claim 14
Dependent Claim
90 words
A scale-grading means comprising a support, an article weigher mounted on said support, said weigher including a cradle adapted to hold an article therein and an ejector adapted to eject an article from the cradle, and means for actuating said ejector so as to eject the article from the cradle depending on the weight of the article, the ejector-actuating means being an electromagnet which actuates the ejector if the magnetic force created by the electromagnet is greater than the force applied to the ejector by the weight of the article.
Claim 15
Dependent Claim
90 words
A scale-grading means comprising a support, an article weigher mounted on said support, said weigher including a cradle adapted to hold an article therein and an ejector adapted to eject an article from the cradle, and means for actuating said ejector so as to eject the article from the cradle depending on the weight of the article, the ejector-actuating means being an electromagnet which actuates the ejector if the magnetic force created by the electromagnet is greater than the force applied to the ejector by the weight of the article.
Claim 16
Dependent Claim
68 words
The means in accordance with cLaim 11 in which the ejector is an arm pivotally mounted at one end of the support and extending across the cradle, and a piece of magnetic metal is secured to the other end of the arm, said metal piece being adapted to be attracted by the magnetic force of the electromagnet to pivot the arm and eject an article from the cradle.
Claim 17
Dependent Claim
74 words
The means in accordance with claim 12 in which the cradle comprises a pair of V-shaped arms connected together in spaced parallel relation, said cradle arms being pivotally mounted on the support at the apexes of the arms with the arms extending upwardly, and the ejector arm extends between and parallel to the cradle arms, the cradle supports an article with the article being seated across the cradle arms and against the ejector arm.
Claim 18
Dependent Claim
22 words
The means in accordance with claim 13 including means mounted on said support and limiting the pivotal movement of the ejector arm.
Claim 19
Dependent Claim
37 words
The means in accordance with claim 13 in which said electromagnet has a switch for actuating the electromagnet, and the cradle has a switch-operating arm extending therefrom and means on the switch-operating arm to actuate the switch.
Claim 20
Dependent Claim
23 words
The means in accordance with claim 15 in which each support has a plurality of article weighers mounted thereon in spaced side-by-side relation.
Claim 21
Dependent Claim
35 words
The means in accordance with claim 16 including a plurality of electromagnets equal in number to the number of article weighers on a support, and in which each electromagnet has a separate magnetically actuated switch.
References Cited (Backward Citations)
US3152655A
Cited
US3276582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |