US3589599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for counting overlapped sheets during conveyance thereof
Assignee: Jagenberg Werke AG
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Filing: 1968-11-08
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Granted: 1971-06-29
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Expires: 1988-11-08
Abstract
Abstract The invention is a method and apparatus for counting sheets of paper, cardboard or the like material which includes feeding successive sheets along a line of movement in overlapped condition, at a position along such line of movement and solely in accordance with the continued in-line movement of the fed sheets detecting successive overlaps and initiating a counting impulse responsive to each successive detected overlap.
Inventors
- 👤 Theo Brandt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:52
CPC Classifications
G; G06; G06M; G06M7/00; G06M7/08; G06M7/10; G06M2207/00; G06M2207/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
79 words
A method of counting sheet material such as of paper, cardboard or the like material comprising feeding successive sheets along a line of movement in overlapped condition, at a position along such line of movement and solely in accordance with the continued inline movement of the fed sheets detecting successive overlaps by directing a jet of air against the oncoming overlapped sheets to lift the successive leading edges thereof and initiating a counting impulse responsive to each detected overlap.
Claim 2
Independent Claim
79 words
A method of counting sheet material such as of paper, cardboard or the like material comprising feeding successive sheets along a line of movement in overlapped condition, at a position along such line of movement and solely in accordance with the continued inline movement of the fed sheets detecting successive overlaps by directing a jet of air against the oncoming overlapped sheets to lift the successive leading edges thereof and initiating a counting impulse responsive to each detected overlap.
Claim 3
Dependent Claim
40 words
The method as claimed in claim 1 in which said air jet is directed against the oncoming sheets from above and said counting impulse is initiated in response to the leading edge of an overlapped sheet passing said air jet.
Claim 4
Dependent Claim
56 words
The method as claimed in claim 2 in which said overlapped sheets pass beneath a movable control member for a counter in advance of said air jet, and moving said movable control member by the pressure of the air from said jet when responsive to the leading edge of an overlapped sheet passing said air jet.
Claim 5
Dependent Claim
94 words
Apparatus for counting sheet material of paper, cardboard or the like material comprising a counting means, means for feeding successive sheets along a line of movement in overlapped condition, means positioned along the line of movement of the sheets for detecting successive overlaps including an air jet nozzle means for directing a jet of air against the oncoming sheets to lift the successively advancing leading edges of overlapped sheets, and means operable when a leading edge of a moving overlapped sheet passes said air jet to actuate said counting means for each detected overlap.
Claim 6
Dependent Claim
94 words
Apparatus for counting sheet material of paper, cardboard or the like material comprising a counting means, means for feeding successive sheets along a line of movement in overlapped condition, means positioned along the line of movement of the sheets for detecting successive overlaps including an air jet nozzle means for directing a jet of air against the oncoming sheets to lift the successively advancing leading edges of overlapped sheets, and means operable when a leading edge of a moving overlapped sheet passes said air jet to actuate said counting means for each detected overlap.
Claim 7
Dependent Claim
47 words
Apparatus as claimed in claim 4 in which the means operable when a leading edge of a moving overlapped sheet moves past the air jet includes a lever means mounted to swing about an axis extending transversely of and above the line of movement of the sheets.
Claim 8
Dependent Claim
68 words
Apparatus as claimed in claim 5 in which said lever means is a double arm lever, one of said arms being shaped to project into and be moved by the air flowing from the air jet and impinging upon the upper surface of an overlapped sheet after the leading edge thereof has moved past the air jet, and the movement of the other arm actuates the counting means.
Claim 9
Dependent Claim
71 words
Apparatus as claimed in claim 6 and photoelectric cell means operably related with said counting means, and reflecting means on said other arm of said double arm lever means that enters into the focus of said photoelectric cell means when said one arm of said lever means is moved by the air from said air jet to cause said photoelectric cell means to transmit a counting impulse to said counting means.
Claim 10
Dependent Claim
53 words
Apparatus as claimed in claim 6 and two electrical contact devices operably connected with said counting means for providing counting impulses thereto, and the other arm of said lever means being disposed for swinging movement between said contact devices and alternately touching the same in accordance with the movement of said lever means.
Claim 11
Dependent Claim
35 words
Apparatus as claimed in claim 8 in which a counting impulse is transmitted to said counting means only in response to successive touching of both contact devices by said other arm of said lever means.
Claim 12
Dependent Claim
63 words
Apparatus as claimed in claim 1 and means operably connected with said counting means and operably related with said air jet nozzle means for measuring the pressure differences arising during passage of the successive leading edges of overlapped sheets past the air jet issuing from said nozzle means and for converting said measured pressure differences into electrical impulses for actuating said counting means.
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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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |