US3570037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft wiper
Assignee: Individual
•
Filing: 1968-08-21
•
Granted: 1971-03-16
•
Expires: 1988-08-21
Abstract
Abstract A WIPER FOR USE WITH A MOVABLE SHAFT, OR QUILL, IS ADAPTED FOR AXIAL MOVEMENT WITHIN A SUPPORTING STRUCTURE. THE SHAFT WIPER SLIDABLY SURROUNDS AND ENGAGES THE MOVABLE SHAFT IN A MANNER TO WIPE ALL CONTAMINANTS AND FOREIGN PARTICLES THEREFROM FOR PREVENTING THE CONTAMINANTS OR PARTICLES FROM BECOMING LODGED BETWEEN THE MOVABLE SHAFT AND THE MOUNTING, THEREBY PREVENTING THE MOVABLE SHAFT FROM BECOMING LODGED IN THE HOUSING AND UNABLE TO BE MOVED. A CIRCULAR STRUCTURE HAVING MEANS FOR HOLDING AT LEAST A PORTION OF THE WIPER IN CONTACT WITH THE MOVABLE SHAFT IS SHOWN. VARIOUS OTHER EMBODIMENTS OF THE SHAFT WIPER ARE ALSO SHOWN.
Inventors
- 👤 Robert M Rood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:20
CPC Classifications
B; B30; B30B; B30B15/00; F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3268; F16J15/3272
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |