US3233474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrating devices
Assignee: Hewitt Robins Inc
•
Filing: 1961-11-14
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Granted: 1966-02-08
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Expires: 1981-11-14
Abstract
No abstract record available.
Inventors
- 👤 Hamilton M Ross
- 👤 Bernard A Century
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:13
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/10; B06B1/16; B06B1/161; B06B1/166; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18544; Y10T74/18552
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
VIBRATORY APPARATUS COMPRISING A FRAME, A PAIR OF SPACED PARALLEL ECCENTRICALLY WEIGHTED SHAFTS ROTATABLY MOUNTED RIGIDLY ON SAID FRAME, DRIVE MEANS FOR ROTATING SAID SHAFTS IN A COMMON DIRECTION OF ROTATION, SAID SHAFTS BEING SPACED FROM EACH OTHER A DISTANCE WITHIN THE RANGE OF APPROXIMATELY 1/2 L TO L WHERE L IS THE LENGTH OF SAID FRAME TRANSVERSELY OF SAID SHAFTS, SAID SHAFTS BEING FREE WITH RESPECT TO EACH OTHER AND WITH RESPECT TO SAID DRIVE MEANS TO ASSUME A PHASE RELATIONSHIP WITH RESPECT TO EACH OTHER GOVERNED BY THE DISTANCE BETWEEN SAID SHAFTS AND THE RELATIONSHIP OF THE LATTER DISTANCE TO THE LENGTH OF SAID FRAME.
Claim 2
Dependent Claim
107 words
VIBRATORY APPARATUS COMPRISING A FRAME, A PAIR OF SPACED PARALLEL ECCENTRICALLY WEIGHTED SHAFTS ROTATABLY MOUNTED RIGIDLY ON SAID FRAME, DRIVE MEANS FOR ROTATING SAID SHAFTS IN A COMMON DIRECTION OF ROTATION, SAID SHAFTS BEING SPACED FROM EACH OTHER A DISTANCE WITHIN THE RANGE OF APPROXIMATELY 1/2 L TO L WHERE L IS THE LENGTH OF SAID FRAME TRANSVERSELY OF SAID SHAFTS, SAID SHAFTS BEING FREE WITH RESPECT TO EACH OTHER AND WITH RESPECT TO SAID DRIVE MEANS TO ASSUME A PHASE RELATIONSHIP WITH RESPECT TO EACH OTHER GOVERNED BY THE DISTANCE BETWEEN SAID SHAFTS AND THE RELATIONSHIP OF THE LATTER DISTANCE TO THE LENGTH OF SAID FRAME.
References Cited (Backward Citations)
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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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |