US2608501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for making lined pipe
Assignee: FAVORITE RUBBER Manufacturing Co
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Filing: 1948-11-26
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Granted: 1952-08-26
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Expires: 1968-11-26
Abstract
No abstract record available.
Inventors
- 👤 Kimble Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:34
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/26; B29C63/34; B29C63/346; B29C49/00; B29C49/24; B29C49/26; B29C63/0047; Y; Y10; Y10S; Y10S118/00; Y10S118/10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
281 words
THE METHOD OF LINING AN ELONGATED HOLLOW ARTICLE HAVING A PASSAGE THERETHROUGH AND A TRANSVERSE FLANGE ON ONE END THEREOF WITH A LAYER OF A HEAT CURABLE ELASTOMER IMPERVIOUS TO GAS WHICH COMPRISES PROVIDING AT LEAST ONE VENT HOLE THROUGH THE WALL OF THE ARTICLE AND SPACED FROM THE ENDS THEREOF, INSETING IN THE ARTICLE A LINING IN THE FORM OF A CONTINUOUS LAYER OF UNCURED ELASTOMER OF CYLINDRICAL SHAPE GENERALLY CONFORMING TO THE SIZE OF THE PASSAGE IN THE ARTICLE AND OF A LENGTH SUBSTANTIALLY EXCEEDING THAT OF THE ARTICLE, THE LINING BEING INSERTED IN THE ARTICLE SO THAT A SUBSTANTIAL LENGTH THEREOF PROTRUDES FROM THE ARTICLE AT THE FLANGED END THEREOF, FLANGING THE PROTRUDING END OF THE LINING AT SUCH FLANGED END OF THE ARTICLE TO BRING IT INTO CONTACT WITH THE EXTERNAL RADICAL FACE OF THE FLANGE ON THE ARTICLE, INFLATING THE LINING WITH GAS ADMITTED THERETO UNDER PRESSURE TO FORCE THELINING INTO INTIMATE CONTACT WITH THE WALL OF THE PASSAGE IN THE ARTICLE TO EXPEL AIR FROM BETWEEN THE LINING AND THE WALL OF THE PASSAGE IN THE ARTICLE, PRESSING THE FLANGED PORTION OF THE LINING INTO INTIMATE CONTACT WITH THE EXTERNAL RADICAL FACE OF THE FLANGE ON THE ARTICLE, AND WHILE THE LINING IS INFLATED BY SUCH GAS AND THE FLANGED PORTION OF THE LINING IS PRESSED AGAINST THE EXTERNAL RADIAL FACE OF THE FLANGE ON THE ARTICLE CLOSING THE VENT HOLE IN THE WALL OF THE ARTICLE AND HEATING THE ARTICLE TO A PREDETERMINED TEMPERATURE FOR A PREDETERMINED TIME TO CURE THE LINING AND TO BOND IT TO THE INNER WALL OF THE ARTICLE AND TO THE OUTER FACE OF THE FLANGE OF THE ARTICLE.
Claim 2
Independent Claim
281 words
THE METHOD OF LINING AN ELONGATED HOLLOW ARTICLE HAVING A PASSAGE THERETHROUGH AND A TRANSVERSE FLANGE ON ONE END THEREOF WITH A LAYER OF A HEAT CURABLE ELASTOMER IMPERVIOUS TO GAS WHICH COMPRISES PROVIDING AT LEAST ONE VENT HOLE THROUGH THE WALL OF THE ARTICLE AND SPACED FROM THE ENDS THEREOF, INSETING IN THE ARTICLE A LINING IN THE FORM OF A CONTINUOUS LAYER OF UNCURED ELASTOMER OF CYLINDRICAL SHAPE GENERALLY CONFORMING TO THE SIZE OF THE PASSAGE IN THE ARTICLE AND OF A LENGTH SUBSTANTIALLY EXCEEDING THAT OF THE ARTICLE, THE LINING BEING INSERTED IN THE ARTICLE SO THAT A SUBSTANTIAL LENGTH THEREOF PROTRUDES FROM THE ARTICLE AT THE FLANGED END THEREOF, FLANGING THE PROTRUDING END OF THE LINING AT SUCH FLANGED END OF THE ARTICLE TO BRING IT INTO CONTACT WITH THE EXTERNAL RADICAL FACE OF THE FLANGE ON THE ARTICLE, INFLATING THE LINING WITH GAS ADMITTED THERETO UNDER PRESSURE TO FORCE THELINING INTO INTIMATE CONTACT WITH THE WALL OF THE PASSAGE IN THE ARTICLE TO EXPEL AIR FROM BETWEEN THE LINING AND THE WALL OF THE PASSAGE IN THE ARTICLE, PRESSING THE FLANGED PORTION OF THE LINING INTO INTIMATE CONTACT WITH THE EXTERNAL RADICAL FACE OF THE FLANGE ON THE ARTICLE, AND WHILE THE LINING IS INFLATED BY SUCH GAS AND THE FLANGED PORTION OF THE LINING IS PRESSED AGAINST THE EXTERNAL RADIAL FACE OF THE FLANGE ON THE ARTICLE CLOSING THE VENT HOLE IN THE WALL OF THE ARTICLE AND HEATING THE ARTICLE TO A PREDETERMINED TEMPERATURE FOR A PREDETERMINED TIME TO CURE THE LINING AND TO BOND IT TO THE INNER WALL OF THE ARTICLE AND TO THE OUTER FACE OF THE FLANGE OF THE ARTICLE.
Claim 3
Dependent Claim
168 words
APPARATUS FOR MOLDING THE FLANGED OUTER END OF A LINING MADE OF AN ELASTOMER IN A HOLLOW ARTICLE HAVING A TRANSVERSE FLANGE ON ONE END, THE FLANGED END OF THE LINING AT LEAST PARTIALLY OVERLAPPING THE OUTER RADIAL FACE OF THE FLANGE ON THE ARTICLE COMPRISING A PLATE-LIKE MEMBER OF SUCH SIZE AND SHAPE AS TO SPAN THE OUTER FACE OF THE GLANGE ON THE ARTICLE, MEANS TO SECURE THE MEMBER TO THE FLANGE ON THE ARTICLE IN CONFRONTING PARALLEL RELATIONSHIP THEREWITH, THE MEMBER HAVING ON ITS INNER FACE WHEN SO MOUNTED AN ANNULAR RECESS GENERALLY COAXIAL WITH THE PASSAGE IN THE ARTICLE TIGHTLY TO RECEIVE THE FLANGED END OF THE LINING AND TO PRESS IT AGAINST THE OUTER RADICAL FACE OF THE FLANGE CONFRONTING, FACE MANDREL ON THE INNER, FLANGE CONFRONTING , FACE OF THE MEMBER AND COAXIAL WITH THE PASSAGE IN THE ARTICLE, SAID MANDREL EXTENDING INTO AND INTIMATELY ENGAGING THE INNER SURFACE OF THE LINING AT THE END OF THE ARTICLE ADJACENT THE FLANGE THEREON.
Claim 4
Dependent Claim
168 words
APPARATUS FOR MOLDING THE FLANGED OUTER END OF A LINING MADE OF AN ELASTOMER IN A HOLLOW ARTICLE HAVING A TRANSVERSE FLANGE ON ONE END, THE FLANGED END OF THE LINING AT LEAST PARTIALLY OVERLAPPING THE OUTER RADIAL FACE OF THE FLANGE ON THE ARTICLE COMPRISING A PLATE-LIKE MEMBER OF SUCH SIZE AND SHAPE AS TO SPAN THE OUTER FACE OF THE GLANGE ON THE ARTICLE, MEANS TO SECURE THE MEMBER TO THE FLANGE ON THE ARTICLE IN CONFRONTING PARALLEL RELATIONSHIP THEREWITH, THE MEMBER HAVING ON ITS INNER FACE WHEN SO MOUNTED AN ANNULAR RECESS GENERALLY COAXIAL WITH THE PASSAGE IN THE ARTICLE TIGHTLY TO RECEIVE THE FLANGED END OF THE LINING AND TO PRESS IT AGAINST THE OUTER RADICAL FACE OF THE FLANGE CONFRONTING, FACE MANDREL ON THE INNER, FLANGE CONFRONTING , FACE OF THE MEMBER AND COAXIAL WITH THE PASSAGE IN THE ARTICLE, SAID MANDREL EXTENDING INTO AND INTIMATELY ENGAGING THE INNER SURFACE OF THE LINING AT THE END OF THE ARTICLE ADJACENT THE FLANGE THEREON.
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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) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |