US3313124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible coupling
Assignee: Midland Ross Corp
•
Filing: 1964-11-27
•
Granted: 1967-04-11
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Expires: 1984-11-27
Abstract
No abstract record available.
Inventors
- 👤 Filepp Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:52
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/16; F16D3/18; F16D3/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN A FLEXIBLE GEAR TYPE SHAFT COUPLING IN COMBINATION, A PAIR OF COMPLEMENTARY METALLIC SHAFT HUBS EACH HAVING GEAR TEETH AT ONE END, A ONE-PIECE CYLINDRICAL SLEEVE WITH INTERNAL TEETH EXTENDING LENGTHWISE OVER AND IN MESH RELATIONSHIP WITH THE GEAR TEETH OF BOTH SAID HUBS, SAID SLEEVE BEING EITHER CAST OR MOLDED OF POLURETHANE, AN ELESTOMER MATERIAL, HAVING SELF-LUBRICATING QUALITIES AND RESISTANCE TO ABRASION, A METALLIC REINFORCING SHELL POSITIONED ABOUT AND PARTLY EMBEDDED IN SAID SLEEVE, SAID SLEEVE BEING EITHER CAST OR MOLDED WITHIN SAID METALLIC SHELL EXTENDING
Claim 2
Dependent Claim
88 words
IN A FLEXIBLE GEAR TYPE SHAFT COUPLING IN COMBINATION, A PAIR OF COMPLEMENTARY METALLIC SHAFT HUBS EACH HAVING GEAR TEETH AT ONE END, A ONE-PIECE CYLINDRICAL SLEEVE WITH INTERNAL TEETH EXTENDING LENGTHWISE OVER AND IN MESH RELATIONSHIP WITH THE GEAR TEETH OF BOTH SAID HUBS, SAID SLEEVE BEING EITHER CAST OR MOLDED OF POLURETHANE, AN ELESTOMER MATERIAL, HAVING SELF-LUBRICATING QUALITIES AND RESISTANCE TO ABRASION, A METALLIC REINFORCING SHELL POSITIONED ABOUT AND PARTLY EMBEDDED IN SAID SLEEVE, SAID SLEEVE BEING EITHER CAST OR MOLDED WITHIN SAID METALLIC SHELL EXTENDING
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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) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |