US3207009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration damping device
Assignee: Kennametal Inc
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Filing: 1964-04-08
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Granted: 1965-09-21
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Expires: 1984-04-08
Abstract
No abstract record available.
Inventors
- 👤 Ragnar L Carlstedt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:16
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/09; B23Q17/0952; B23Q17/0971; B23Q17/0976; B23B; B23B29/00; B23B29/02; B23B29/022; Y; Y10; Y10S; Y10S408/00; Y10S408/713; Y10S82/00; Y10S82/904; Y10T; Y10T408/00; Y10T408/76; Y10T82/00; Y10T82/25; Y10T82/2572
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
APPARATUS FOR DAMPING VIBRATIONS IN A MEMBER HAVING A LONGITUDINAL BORE THEREIN COMPRISING; A PLURALITY OF RIGID IMPACT ELEMENTS CARRIED WITHIN SAID BORE AND HAVING SMOOTH PARALLEL AREAS IN FACE TO FACE ENGAGEMENT, EACH SAID ELEMENT HAVING A DIMENSION IN THE DIRECTION OF VIBRATION WHICH IS LESS THAN THE DIAMETER OF SAID BORE, AND WHICH SAID DIMENSIONS OF SAID IMPACT ELEMENTS ARE ALSO RANDOMLY VARIED, THE CLEARANCE BETWEEN SAID PLURALITY OF IMPACT ELEMENTS AND SAID BORE BEING SUCH THAT THE VIBRATIONS OF SAID MEMBER WILL BE OPPOSED BY THE RANDOM IMPACTS OF SAID IMPACT ELEMENTS AGAINST THE WALL OF SAID BORE, AND MEANS TO URGE SAID PARALLEL AREAS ON ADJACENT IMPACT ELEMENTS IN FACE TO FACE ENGAGEMENT.
Claim 2
Dependent Claim
117 words
APPARATUS FOR DAMPING VIBRATIONS IN A MEMBER HAVING A LONGITUDINAL BORE THEREIN COMPRISING; A PLURALITY OF RIGID IMPACT ELEMENTS CARRIED WITHIN SAID BORE AND HAVING SMOOTH PARALLEL AREAS IN FACE TO FACE ENGAGEMENT, EACH SAID ELEMENT HAVING A DIMENSION IN THE DIRECTION OF VIBRATION WHICH IS LESS THAN THE DIAMETER OF SAID BORE, AND WHICH SAID DIMENSIONS OF SAID IMPACT ELEMENTS ARE ALSO RANDOMLY VARIED, THE CLEARANCE BETWEEN SAID PLURALITY OF IMPACT ELEMENTS AND SAID BORE BEING SUCH THAT THE VIBRATIONS OF SAID MEMBER WILL BE OPPOSED BY THE RANDOM IMPACTS OF SAID IMPACT ELEMENTS AGAINST THE WALL OF SAID BORE, AND MEANS TO URGE SAID PARALLEL AREAS ON ADJACENT IMPACT ELEMENTS IN FACE TO FACE ENGAGEMENT.
References Cited (Backward Citations)
US2960189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |