US3221646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screen printing apparatus
Assignee: Fritz Buser AG Maschinenfabrik
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Filing: 1961-10-24
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Granted: 1965-12-07
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Expires: 1981-10-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles D Hardy
- 👤 Jeronimus Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:19
CPC Classifications
B; B41; B41F; B41F15/00; B41F15/08; B41F15/0831; B41F15/0845; B41F15/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
204 words
A SILK SCREEN PRINTING MACHINE FOR PRINTING ON MATERIAL COMPRISING A PRINT TABLE HAVING A STATIONARY AND A MOVABLE PORTION, VACUUM MEANS ASSOCIATED WITH SAID TABLE TO PROVIDE A VACUUM TO HOLD SAID MATERIAL TO SAID TABLE, POWER MEANS OPERATIVELY COUPLED TO SAID MOVABLE PORTION OF SAID TABLE TO IMPART A LINEAR EXCURSION TO SAID MOVABLE PORTION, RETURN SWITCHING MEANS AT THE BEGINNING OF SAID EXCURSION TO PROVIDE A RETURN CONTROL SIGNAL, ADVANCE SWITCHING MEANS AT THE END OF SAID EXCURSION TO PROVIDE AN ADVANCE CONTROL SIGNAL, POWER REVERSER MEANS OPERATIVELY COUPLED TO SAID POWER MEANS AND RESPONSIVE TO SAID RETURN CONTROL SIGNAL AND TO ADVANCE CONTROL SIGNAL TO SWITCH THE DIRECTION OF MOTION OF SAID MOVABLE PORTION OF SAID TABLE, OVERADVANCE SWITCHING MEANS AT A POINT INTERMEDIATE BETWEEN THE BEGINNING AND END OF SAID EXCURSION TO PROVIDE AN OVERADVANCE CONTROL SIGNAL ON THE RETURN PORTION OF SAID LINEAR EXCURSION AND VACUUM REVERSER MEANS OPERATIVELY COUPLED TO SAID VACUUM HOLDING MEANS RESPONSIVE TO SAID ADVANCE CONTROL SIGNAL TO SWITCH SAID VACUUM FROM SAID MOVABLE PORTION OF SAID STATIONARY PORTION OF SAID TABLE AND RESPONSIVE TO SAID OVERADVANCE CONTROL SIGNAL TO SWITCH SAID VACUUM FROM SAID STATIONARY PORTION OF SAID MOVABLE PORTION OF SAID TABLE.
Claim 2
Dependent Claim
204 words
A SILK SCREEN PRINTING MACHINE FOR PRINTING ON MATERIAL COMPRISING A PRINT TABLE HAVING A STATIONARY AND A MOVABLE PORTION, VACUUM MEANS ASSOCIATED WITH SAID TABLE TO PROVIDE A VACUUM TO HOLD SAID MATERIAL TO SAID TABLE, POWER MEANS OPERATIVELY COUPLED TO SAID MOVABLE PORTION OF SAID TABLE TO IMPART A LINEAR EXCURSION TO SAID MOVABLE PORTION, RETURN SWITCHING MEANS AT THE BEGINNING OF SAID EXCURSION TO PROVIDE A RETURN CONTROL SIGNAL, ADVANCE SWITCHING MEANS AT THE END OF SAID EXCURSION TO PROVIDE AN ADVANCE CONTROL SIGNAL, POWER REVERSER MEANS OPERATIVELY COUPLED TO SAID POWER MEANS AND RESPONSIVE TO SAID RETURN CONTROL SIGNAL AND TO ADVANCE CONTROL SIGNAL TO SWITCH THE DIRECTION OF MOTION OF SAID MOVABLE PORTION OF SAID TABLE, OVERADVANCE SWITCHING MEANS AT A POINT INTERMEDIATE BETWEEN THE BEGINNING AND END OF SAID EXCURSION TO PROVIDE AN OVERADVANCE CONTROL SIGNAL ON THE RETURN PORTION OF SAID LINEAR EXCURSION AND VACUUM REVERSER MEANS OPERATIVELY COUPLED TO SAID VACUUM HOLDING MEANS RESPONSIVE TO SAID ADVANCE CONTROL SIGNAL TO SWITCH SAID VACUUM FROM SAID MOVABLE PORTION OF SAID STATIONARY PORTION OF SAID TABLE AND RESPONSIVE TO SAID OVERADVANCE CONTROL SIGNAL TO SWITCH SAID VACUUM FROM SAID STATIONARY PORTION OF SAID MOVABLE PORTION OF SAID TABLE.
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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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |