US3137379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensing device
Assignee: Ruf Buchhaltung AG
•
Filing: 1961-02-20
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Granted: 1964-06-16
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Expires: 1981-02-20
Abstract
No abstract record available.
Inventors
- 👤 Oberholzer Max
- 👤 Reber Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:41
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/36; B41J11/42; B41J11/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN A SHEET SENSING DEVICE FOR A PRINTING MACHINE IN WHICH A PREVIOUSLY PRINTED SHEET IS PROVIDED WITH PROTRUDING MARKINGS TO INDICATE A LINE OF PREVIOUS PRINTING ON SUCH SHEET, THE COMBINATION COMPRISING GUIDE PLATE MEANS ATTACHED TO THE PRINTING MACHINE, SUPPORT MEANS ON SAID GUIDE PLATE MEANS, SAID SUPPORT MEANS INCLUDING A SHEET CONTACTING SURFACE HAVING A GROOVE THEREIN, A SPRING BIASED ROCKER PIVOTALLY MOUNTED ON SAID SUPPORT MEANS AND BEING NORMALLY BIASED TOWARD SAID CONTACTING SURFACE, BOSS MEANS DISPOSED ON SAID ROCKER SO AS TO BE NORMALLY BIASED THEREWITH INTO SAID GROOVE WHEREBY A PROTRUDING MARKING PROVIDED ON THE PREVIOUSLY PRINTED SHEET IS ENGAGED BY SAID BOSS MEANS SO AS TO BE PREPARED FOR SENSING, A SLIDE ELEMENT CARRIED BY SAID SUPPORT MEANS, AND A SENSING TIP ON SAID SLIDE ELEMENT NORMALLY BIASED TOWARD SAID ROCKER TO SENSE A PROTRUDING MARKING ON A SHEET INSERTED BETWEEN SAID ROCKER AND SAID SHEET CONTACTING SURFACE.
Claim 2
Dependent Claim
155 words
IN A SHEET SENSING DEVICE FOR A PRINTING MACHINE IN WHICH A PREVIOUSLY PRINTED SHEET IS PROVIDED WITH PROTRUDING MARKINGS TO INDICATE A LINE OF PREVIOUS PRINTING ON SUCH SHEET, THE COMBINATION COMPRISING GUIDE PLATE MEANS ATTACHED TO THE PRINTING MACHINE, SUPPORT MEANS ON SAID GUIDE PLATE MEANS, SAID SUPPORT MEANS INCLUDING A SHEET CONTACTING SURFACE HAVING A GROOVE THEREIN, A SPRING BIASED ROCKER PIVOTALLY MOUNTED ON SAID SUPPORT MEANS AND BEING NORMALLY BIASED TOWARD SAID CONTACTING SURFACE, BOSS MEANS DISPOSED ON SAID ROCKER SO AS TO BE NORMALLY BIASED THEREWITH INTO SAID GROOVE WHEREBY A PROTRUDING MARKING PROVIDED ON THE PREVIOUSLY PRINTED SHEET IS ENGAGED BY SAID BOSS MEANS SO AS TO BE PREPARED FOR SENSING, A SLIDE ELEMENT CARRIED BY SAID SUPPORT MEANS, AND A SENSING TIP ON SAID SLIDE ELEMENT NORMALLY BIASED TOWARD SAID ROCKER TO SENSE A PROTRUDING MARKING ON A SHEET INSERTED BETWEEN SAID ROCKER AND SAID SHEET CONTACTING SURFACE.
References Cited (Backward Citations)
US1985178A
Cited
US2424073A
Cited
US2670068A
Cited
US2831560A
Cited
US2916129A
Cited
DE1080125B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |