US3328058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft coupling
Assignee: T J GUNDLACH CO
•
Filing: 1964-06-29
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Granted: 1967-06-27
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Theodore F Gundlach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:33
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/02; F16D1/033; F16D1/06; F16D1/064; F16D1/068; F16B; F16B2200/00; F16B2200/50; F16B2200/503
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
IN A COUPLING FOR A PAIR OF SHAFTS COMPRISING: (A) A PAIR OF PLATES ATTACHED TO THE SHAFTS AND DISPOSED IN FACE TO FACE RELATION, (B) A PLURALITY OF CIRCUMFERENTIALLY SPACED SHOULDER BOLTS, EACH BOLT HAVING A LARGE DIAMETER SUBSTANTIALLY SMOOTH SHANK PORTION AND A SMALLER DIAMETER THREADED END PORTION, (C) THE SUBSTANTIALLY SMOOTH SHANK, PORTIONS EXTENDING THROUGH COMPATIBLE OPENINGS PROVIDED IN ONE PLATE AND PARTIALLY THROUGH COMPATIBLE OPENINGS PROVIDED IN THE OTHER PLATE, (D) THE REDUCED END PORTIONS THREADEDLY ENGAGING THE SAID OTHER PLATE. (E) THE SMOOTH SHANK PORTIONS AND COMPATIBLE OPENINGS HAVING A CLOSE FIT SO THAT THE SHOULDER BOLTS TRANSMIT TORQUE BETWEEN THE PLATES AND ALSO MAINTAIN THE SHAFTS IN AXIAL ALIGNMENT, (F) A PLURALITY OF CIRCUMFERENTIALLY SPACED CLAMPING BOLTS EXTENDING THROUGH THE PLATES AND CLAMPING THE PLATES TOGETHER, THE CLAMPING BOLTS HAVING SHANK PORTIONS, AND (G) THE DIAMETER OF THE SHANK PORTION OF EACH SHOULDER BOLT IS SUBSTANTIALLY LARGER THAN THE DIAMETER OF THE SHANK PORTION OF THE CLAMPING BOLTS.
Claim 2
Dependent Claim
164 words
IN A COUPLING FOR A PAIR OF SHAFTS COMPRISING: (A) A PAIR OF PLATES ATTACHED TO THE SHAFTS AND DISPOSED IN FACE TO FACE RELATION, (B) A PLURALITY OF CIRCUMFERENTIALLY SPACED SHOULDER BOLTS, EACH BOLT HAVING A LARGE DIAMETER SUBSTANTIALLY SMOOTH SHANK PORTION AND A SMALLER DIAMETER THREADED END PORTION, (C) THE SUBSTANTIALLY SMOOTH SHANK, PORTIONS EXTENDING THROUGH COMPATIBLE OPENINGS PROVIDED IN ONE PLATE AND PARTIALLY THROUGH COMPATIBLE OPENINGS PROVIDED IN THE OTHER PLATE, (D) THE REDUCED END PORTIONS THREADEDLY ENGAGING THE SAID OTHER PLATE. (E) THE SMOOTH SHANK PORTIONS AND COMPATIBLE OPENINGS HAVING A CLOSE FIT SO THAT THE SHOULDER BOLTS TRANSMIT TORQUE BETWEEN THE PLATES AND ALSO MAINTAIN THE SHAFTS IN AXIAL ALIGNMENT, (F) A PLURALITY OF CIRCUMFERENTIALLY SPACED CLAMPING BOLTS EXTENDING THROUGH THE PLATES AND CLAMPING THE PLATES TOGETHER, THE CLAMPING BOLTS HAVING SHANK PORTIONS, AND (G) THE DIAMETER OF THE SHANK PORTION OF EACH SHOULDER BOLT IS SUBSTANTIALLY LARGER THAN THE DIAMETER OF THE SHANK PORTION OF THE CLAMPING BOLTS.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |