US3150262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermographic copying machine
Assignee: 3M Co
•
Filing: 1960-04-05
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Granted: 1964-09-22
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Expires: 1980-04-05
Abstract
No abstract record available.
Inventors
- 👤 John W Ulseth
- 👤 Robert A Halberg
- 👤 John A Gravelle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:29
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/30; G03B27/306; F; F21; F21V; F21V7/00; F21V7/10; F21V7/22; F21V7/24; F21V7/28; G02; G02B; G02B5/00; G02B5/08; G02B5/10; G03B27/16; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
113 words
IN A THEREMOGRAPHIC COPYING MACHINE HAVING MEANS INCLUDING A ROLL DEFINING A COPY STATION, MEANS FOR IRRADIATING A COMPOSITE OF A GRAPHIC ORIGINAL AND A COPY SHEET WHILE IN CONTACT WITH SAID ROLL, SAID MEANS COMPRISING A LAMP ASSEMBLY, MEANS MOUNTING SAID LAMP ASSEMBLY FOR MOVEMENT BETWEEN AN OPERATIVE POSITION CLOSELY ADJACENT A SURFACE OF SAID ROLL AND A RETRACTED POSITION SPACED AWAY FROM SAIF ROLL SURFACE, DRIVE MEANS FOR SAID ROLL, AND ACTUATING MEANS OPERATIVELY ASSOCIATED WITH SAID MOUNTING MEANS AND SAID DRIVE MEANS FOR ACTUATING SAID LAMP ASSEMBLY TO OPERATIVE POSITION WHEN OPERATION OF SAID DRIVE MEANS IS INITIATED AND TO RETRACTED POSITION WHEN OPERATION OF SAID DRIVE MEANS IS TERMINATED.
Claim 2
Dependent Claim
113 words
IN A THEREMOGRAPHIC COPYING MACHINE HAVING MEANS INCLUDING A ROLL DEFINING A COPY STATION, MEANS FOR IRRADIATING A COMPOSITE OF A GRAPHIC ORIGINAL AND A COPY SHEET WHILE IN CONTACT WITH SAID ROLL, SAID MEANS COMPRISING A LAMP ASSEMBLY, MEANS MOUNTING SAID LAMP ASSEMBLY FOR MOVEMENT BETWEEN AN OPERATIVE POSITION CLOSELY ADJACENT A SURFACE OF SAID ROLL AND A RETRACTED POSITION SPACED AWAY FROM SAIF ROLL SURFACE, DRIVE MEANS FOR SAID ROLL, AND ACTUATING MEANS OPERATIVELY ASSOCIATED WITH SAID MOUNTING MEANS AND SAID DRIVE MEANS FOR ACTUATING SAID LAMP ASSEMBLY TO OPERATIVE POSITION WHEN OPERATION OF SAID DRIVE MEANS IS INITIATED AND TO RETRACTED POSITION WHEN OPERATION OF SAID DRIVE MEANS IS TERMINATED.
Claim 3
Dependent Claim
104 words
A THERMOGRPHIC COPYING MACHINE COMPRISING A COPY ROLL ADAPTED TO HAVE A COMPOSITE OF A GRAPHIC ORIGINAL AND A COPY SHEET MOVED THEREPAST IN CONTACT WITH THE PERIPHERY THEREOF, SAID COPY ROLL BEING GENERALLY CYLINDRICAL IN SHAPE AND HAVING AN AVERAGE PROFILE IN AXIAL SECTION WHICH IS RADIALLY INWARDLY BOWED FROM ITS ENDS TOWARD THE CENTRAL PORTION THEREOF, AND MEANS FOR PRESSING A COMPOSITE AGAINST THE PERIPHERY OF SAID COPY ROLL AS SAID COMPOSITE MOVES THEREPAST, THE COUNTOUR OF SAID COPY ROLL TENDING TO PREVENT WRINKLING OF A COMPOSITE MOVED THEREPAST AND IN PRESSURE CONTACT THEREWITH UNDER THE INFLUENCE OF SAID PRESSURE APPLYING MEANS.
Claim 4
Dependent Claim
104 words
A THERMOGRPHIC COPYING MACHINE COMPRISING A COPY ROLL ADAPTED TO HAVE A COMPOSITE OF A GRAPHIC ORIGINAL AND A COPY SHEET MOVED THEREPAST IN CONTACT WITH THE PERIPHERY THEREOF, SAID COPY ROLL BEING GENERALLY CYLINDRICAL IN SHAPE AND HAVING AN AVERAGE PROFILE IN AXIAL SECTION WHICH IS RADIALLY INWARDLY BOWED FROM ITS ENDS TOWARD THE CENTRAL PORTION THEREOF, AND MEANS FOR PRESSING A COMPOSITE AGAINST THE PERIPHERY OF SAID COPY ROLL AS SAID COMPOSITE MOVES THEREPAST, THE COUNTOUR OF SAID COPY ROLL TENDING TO PREVENT WRINKLING OF A COMPOSITE MOVED THEREPAST AND IN PRESSURE CONTACT THEREWITH UNDER THE INFLUENCE OF SAID PRESSURE APPLYING 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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |