US3898116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for manufacturing a structure for a green tire
Assignee: Bridgestone Corp
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Filing: 1973-11-05
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Granted: 1975-08-05
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Expires: 1993-11-05
Abstract
Abstract Method and apparatus for manufacturing a carcass structure for a green tire, wherein a plurality of carcass sheets are respectively cut into pieces each having a length substantially equal to the circumferential length of the working surface of the building drum and the pieces are laminated on one another before being wrapping on the building drum.
Inventors
- 👤 Yoshiaki Katagiri
- 👤 Yoshiaki Hirata
- 👤 Toshihiro Takahashi
- 👤 Shunichi Nomura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:27
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/30; B29D30/3007; B29D30/38; B29D30/42; B29D2030/421; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1075; Y10T156/1077; Y10T156/1079; Y10T156/12; Y10T156/13; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1741
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
169 words
A METHOD OF MANUFACTURING A CARCASS STRUCTURE FOR A GREEN TIRE USING A BUILDING DRUM, WHICH IS CHARACTERIZED BY THE STEPS OF: PREPARING AT LEAST TWO CARCASS SHEET OF BIAS TYPE HAVING A NUMBER OF JUNCTIONS, CUTTING EACH ONE OF SAID CARCASS SHEETS INTO A PIECE OF THE ONE-TURN LENGTH, SAID CUTTING INCLUDES A STEP OF CUTTING OFF A FORWARD END PORTION OF A PREDETERMINED LENGTH OF SAID PIECE WHEN THERE IS AT LEAST ONE JUNCTION IN SAID FORWARD END PORTION AND A BACKWARD END PORTION OF SAID PREDETERMINED LENGTH, THE BACKWARD EDGE OF SAID BACKWARD END PORTION AND THE FORWARD EDGE OF SAID FORWARD END PORTION BEING SPACED FROM EACH OTHER BY THE ONE-TURN LENGTH, LAMINATING ONE OF THE PIECES ON THE OTHER PIECE IN SUCH A MANNER THAT THE FORWARD ENDS OF THE PIECES CIRCUMFERENTIALLY EQUIDISTANTLY SPACED FROM EACH OTHER WHEN THE LAMINATED PIECES ARE WRAPPED ON THE WORKING SURFACE OF THE BUILDING DRUM, AND WRAPPING THE LAMINATED PIECES ON THE WORKING SURFACE OF THE BUILDING DRUM.
Claim 2
Independent Claim
169 words
A METHOD OF MANUFACTURING A CARCASS STRUCTURE FOR A GREEN TIRE USING A BUILDING DRUM, WHICH IS CHARACTERIZED BY THE STEPS OF: PREPARING AT LEAST TWO CARCASS SHEET OF BIAS TYPE HAVING A NUMBER OF JUNCTIONS, CUTTING EACH ONE OF SAID CARCASS SHEETS INTO A PIECE OF THE ONE-TURN LENGTH, SAID CUTTING INCLUDES A STEP OF CUTTING OFF A FORWARD END PORTION OF A PREDETERMINED LENGTH OF SAID PIECE WHEN THERE IS AT LEAST ONE JUNCTION IN SAID FORWARD END PORTION AND A BACKWARD END PORTION OF SAID PREDETERMINED LENGTH, THE BACKWARD EDGE OF SAID BACKWARD END PORTION AND THE FORWARD EDGE OF SAID FORWARD END PORTION BEING SPACED FROM EACH OTHER BY THE ONE-TURN LENGTH, LAMINATING ONE OF THE PIECES ON THE OTHER PIECE IN SUCH A MANNER THAT THE FORWARD ENDS OF THE PIECES CIRCUMFERENTIALLY EQUIDISTANTLY SPACED FROM EACH OTHER WHEN THE LAMINATED PIECES ARE WRAPPED ON THE WORKING SURFACE OF THE BUILDING DRUM, AND WRAPPING THE LAMINATED PIECES ON THE WORKING SURFACE OF THE BUILDING DRUM.
Claim 3
Dependent Claim
89 words
AN APPARATTUS FOR MANUFACTURING UNCURED CARCASS STRUCTURE TO BE INCLUDED WITH A BUILDING DRUM COMPRISING: A BASIC SUPPLYING CONVEYER FOR WITHDRAWING A FIRST CARCASS SHEET, A BASIC LAMINATING CONVEYER POSITIONED IN ALIGNMENT WITH SAID BASIC SUPPLYING CONVEYER FOR FEEDING SAID FIRST CARCASS SHEET LED FROM SAID BASIC SUPPLYING CONVEYER, SAID BASIC LAMINATING CONVEYER INCLUDING A PAIR OF DRUMS SPACED FROM EACH OTHER, A FLAT LOOP BELT WITH APERTURES STREATCHED OVER SAID PAIR OF DRUMS, A VACUUM CHAMBER INTERPOSED BETWEEN THE LOWER AND UPPER PARTS OF SAID LOOP BELT AND
Claim 4
Dependent Claim
89 words
AN APPARATTUS FOR MANUFACTURING UNCURED CARCASS STRUCTURE TO BE INCLUDED WITH A BUILDING DRUM COMPRISING: A BASIC SUPPLYING CONVEYER FOR WITHDRAWING A FIRST CARCASS SHEET, A BASIC LAMINATING CONVEYER POSITIONED IN ALIGNMENT WITH SAID BASIC SUPPLYING CONVEYER FOR FEEDING SAID FIRST CARCASS SHEET LED FROM SAID BASIC SUPPLYING CONVEYER, SAID BASIC LAMINATING CONVEYER INCLUDING A PAIR OF DRUMS SPACED FROM EACH OTHER, A FLAT LOOP BELT WITH APERTURES STREATCHED OVER SAID PAIR OF DRUMS, A VACUUM CHAMBER INTERPOSED BETWEEN THE LOWER AND UPPER PARTS OF SAID LOOP BELT AND
Claim 5
Dependent Claim
63 words
The apparatus as defined in claim 2, wherein said control means includes a seventh detector positioned over said additional laminating conveyer for producing a start signal when the forward end of said second carcass sheet passes through a predetermined point, and means for actuating both of said basic and additional laminating conveyers in response to said start signal and said first cutting signal.
Claim 6
Dependent Claim
24 words
The apparatus as defined in claim 2, wherein said actuation means includes a reversing mechanism for reversely driving one of said pair of drums.
Claim 7
Dependent Claim
33 words
The apparatus as defined in claim 2, wherein said flat loop belt of said additional laminating conveyer has apertures localized in a portion thereof extending through one-turn length in the moving direction thereof.
References Cited (Backward Citations)
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US2962083A
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US3142603A
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US3616081A
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US3630803A
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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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |