US3336818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for automatically dynamically balancing rotating components
Assignee: Individual
•
Filing: 1965-08-06
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Granted: 1967-08-22
•
Expires: 1985-08-06
Abstract
No abstract record available.
Inventors
- 👤 Norman C Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:04
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/32; F16F15/36; F16F15/366; F16F2222/00; F16F2222/06; F16F2224/00; F16F2224/04; F16F2224/045; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/211; Y10T74/2111
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
FOR USE WITH A SHAFT TO BE DYNAMICALLY BALANCED WHICH SHAFT IS ROTATABLY SUPPORTED BETWEEN BEARINGS CARRIED BY A STATIC FRAME, AN APPARATUS FOR DAMPING TORSIONAL VIBRATIONS OF ROTATING SHAFT; COMPRISING A CASING ABOUT SAID SHAFT AND BEING SECURED FOR ROTATIONS THEREWITH, A FLUID WITHIN SAID CASING HAVING THE PROPERTY THAT ITS VISCOSITY MAY BE VARIED IN A MAGNETIC FIELD, A PAIR IF VIBRATION DAMPING DISCS WHOSE SPECIFIC GRAVITY IS LESS THAN THAT OF THE FLUID CARRIED IN SAID CASING IN SAID FLUID AND POSITIONED TO BEAR AGAINST THE SHAFT UPON ROTATION OF SAID
Claim 2
Dependent Claim
94 words
FOR USE WITH A SHAFT TO BE DYNAMICALLY BALANCED WHICH SHAFT IS ROTATABLY SUPPORTED BETWEEN BEARINGS CARRIED BY A STATIC FRAME, AN APPARATUS FOR DAMPING TORSIONAL VIBRATIONS OF ROTATING SHAFT; COMPRISING A CASING ABOUT SAID SHAFT AND BEING SECURED FOR ROTATIONS THEREWITH, A FLUID WITHIN SAID CASING HAVING THE PROPERTY THAT ITS VISCOSITY MAY BE VARIED IN A MAGNETIC FIELD, A PAIR IF VIBRATION DAMPING DISCS WHOSE SPECIFIC GRAVITY IS LESS THAN THAT OF THE FLUID CARRIED IN SAID CASING IN SAID FLUID AND POSITIONED TO BEAR AGAINST THE SHAFT UPON ROTATION OF SAID
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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |