US3363434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for protecting a shaft against condensation of vapor
Assignee: Lokomotivbau Elektrotechnische Werke Hans Beimler VEB
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Filing: 1965-08-26
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Granted: 1968-01-16
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Expires: 1985-08-26
Abstract
No abstract record available.
Inventors
- 👤 Kuhn Gerhard
- 👤 Kunack Wilfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:18
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/24; F16H25/2418; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
AN ARRANGEMENT FOR PROTECTING A SCREW SHAFT HAVING A SCREW NUT, WHICH COMPRISES: AN INNER AND OUTER TUBULAR MEMBER ARRANGED COAXIALLY WITH AND SURROUNDING SAID SHAFT, ONE OF SAID TUBULAR MEMBERS HAVING A LONGITUDINAL SLIT, THE OTHER HAVING A HELICAL SLIT, SAID SLITS DEFINING AN OPENING AT THEIR INTERSECTION, SAID SCREW NUT HAVING A PROJECTION FOR CONNECTION WITH A MEMBER TO BE DRIVEN, SAID PROJECTION EXTENDING THROUGH SAID OPENING AND HAVING SUBSTANTIALLY THE SAME SIZE AND SHAPE AS SAID OPENING SO AS TO SUBSTANTIALLY COMPLETELY CLOSE THE SAME THEREBY PROTECTING SAID SCREW SHAFT AGAINST CORROSIVE INFLUENCES.
Claim 2
Dependent Claim
96 words
AN ARRANGEMENT FOR PROTECTING A SCREW SHAFT HAVING A SCREW NUT, WHICH COMPRISES: AN INNER AND OUTER TUBULAR MEMBER ARRANGED COAXIALLY WITH AND SURROUNDING SAID SHAFT, ONE OF SAID TUBULAR MEMBERS HAVING A LONGITUDINAL SLIT, THE OTHER HAVING A HELICAL SLIT, SAID SLITS DEFINING AN OPENING AT THEIR INTERSECTION, SAID SCREW NUT HAVING A PROJECTION FOR CONNECTION WITH A MEMBER TO BE DRIVEN, SAID PROJECTION EXTENDING THROUGH SAID OPENING AND HAVING SUBSTANTIALLY THE SAME SIZE AND SHAPE AS SAID OPENING SO AS TO SUBSTANTIALLY COMPLETELY CLOSE THE SAME THEREBY PROTECTING SAID SCREW SHAFT AGAINST CORROSIVE INFLUENCES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |