US3091441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heating and stretching of fabrics
Assignee: Blaw Knox Co
•
Filing: 1961-02-02
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Granted: 1963-05-28
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Expires: 1981-02-02
Abstract
No abstract record available.
Inventors
- 👤 Gilbert V Kullgren
- 👤 Winchel J Goodwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:29
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/28; F26B3/30; F26B3/305; F26B13/00; F26B13/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
AN INDUSTRIAL OVEN OF THE TOWER TYPE COMPRISING AN UPRIGHT SUPPORTING STRUCTURE; MEANS AT ONE END OF THE STRUCTURE FOR ADMISSION OF A MOVING WEB; MEANS AT THE OTHER END OF THE STRUCTURE FOR THE WITHDRAWAL OF THE WEB; MEANS FOR GUIDING THE WEB THEREBETWEEN IN A SUBSTANTIALLY VERTICAL PLANE; HORIZONTAL CHANNELS FORMING PART OF THE SUPPORTING STRUCTURE, SAID CHANNELS EXTENDING NORMALLY TO THE PLANE OF THE WEB AT THE EDGES OF ITS PATH OF TRAVEL; INSULATING PANELS CARRIED BY SUCH CHANNELS, SAID INSULATING PANELS EXTENDING VERTICALLY IN FREE-STANDING RELATION TO THE REMAINDER OF THE SUPPORTING STRUCTURE; AND BETWEEN THE INSULATING PANELS, A PLURALITY OF STACKED HEATING UNITS ON EACH SIDE OF THE PATH OF TRAVEL OF THE WEB, EACH OF SAID HEATING UNITS TAKING THE FORM OF A SELF-CONTAINED BOX WITH MEANS THEREIN FOR SUPPLYING A COMBUSTIBLE MIXTURE OF GAS AND AIR, BURNING THE GAS, AND CONTINUOSLY REMOVING PRODUCTS OF COMBUSTION AT THE REAR OF THE BOX.
Claim 2
Dependent Claim
158 words
AN INDUSTRIAL OVEN OF THE TOWER TYPE COMPRISING AN UPRIGHT SUPPORTING STRUCTURE; MEANS AT ONE END OF THE STRUCTURE FOR ADMISSION OF A MOVING WEB; MEANS AT THE OTHER END OF THE STRUCTURE FOR THE WITHDRAWAL OF THE WEB; MEANS FOR GUIDING THE WEB THEREBETWEEN IN A SUBSTANTIALLY VERTICAL PLANE; HORIZONTAL CHANNELS FORMING PART OF THE SUPPORTING STRUCTURE, SAID CHANNELS EXTENDING NORMALLY TO THE PLANE OF THE WEB AT THE EDGES OF ITS PATH OF TRAVEL; INSULATING PANELS CARRIED BY SUCH CHANNELS, SAID INSULATING PANELS EXTENDING VERTICALLY IN FREE-STANDING RELATION TO THE REMAINDER OF THE SUPPORTING STRUCTURE; AND BETWEEN THE INSULATING PANELS, A PLURALITY OF STACKED HEATING UNITS ON EACH SIDE OF THE PATH OF TRAVEL OF THE WEB, EACH OF SAID HEATING UNITS TAKING THE FORM OF A SELF-CONTAINED BOX WITH MEANS THEREIN FOR SUPPLYING A COMBUSTIBLE MIXTURE OF GAS AND AIR, BURNING THE GAS, AND CONTINUOSLY REMOVING PRODUCTS OF COMBUSTION AT THE REAR OF THE BOX.
References Cited (Backward Citations)
US683441A
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US1747822A
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US2132032A
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US2205915A
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US2546538A
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Cited
US2869846A
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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) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |