US3087603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory feeder
Assignee: Unisys Corp
•
Filing: 1961-07-11
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Granted: 1963-04-30
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Expires: 1981-07-11
Abstract
No abstract record available.
Inventors
- 👤 James C Petrea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:07
CPC Classifications
B; B65; B65G; B65G27/00; B65G2812/00; B65G2812/03; B65G2812/0348; B65G2812/0364
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN A VIBRATORY FEEDER HAVING A RIGID BASE, A FEEDER TROUGH, AND UPSTANDING LEAF SPRINGS FIXEDLY SECURED AT THEIR UPPER ENDS TO SAID TROUGH AND SUPPORTING SAID TROUGH ON SAID BASE FOR VIBRATORY MOVEMENT IN A DIRECTION SLIGHTLY OBLIQUE TO HORIZONTAL, THE IMPROVEMENT COMPRISING: CLAMPING MEANS RELEASABLY CLAMPING THE LOWER END OF AT LEAST ONE OF SAID LEAF SPRINGS TO SAID BASE, THE SAID LOWER END BEING OTHERWISE FREE OF SECUREMENT TO SAID BASE, SAID CLAMPING MEANS BEING ADJUSTABLE RELATIVE TO SAID BASE AND SAID LEAF SPRING IN A DIRECTION ALONG SAID LEAF SPRING WHEREBY TO SELECTIVELY ADJUST THE LENGTH OF SAID SPRING AND THEREBY ADJUST THE NATURAL PERIOD OF VIBRATION OF SAID TROUGH.
Claim 2
Dependent Claim
114 words
IN A VIBRATORY FEEDER HAVING A RIGID BASE, A FEEDER TROUGH, AND UPSTANDING LEAF SPRINGS FIXEDLY SECURED AT THEIR UPPER ENDS TO SAID TROUGH AND SUPPORTING SAID TROUGH ON SAID BASE FOR VIBRATORY MOVEMENT IN A DIRECTION SLIGHTLY OBLIQUE TO HORIZONTAL, THE IMPROVEMENT COMPRISING: CLAMPING MEANS RELEASABLY CLAMPING THE LOWER END OF AT LEAST ONE OF SAID LEAF SPRINGS TO SAID BASE, THE SAID LOWER END BEING OTHERWISE FREE OF SECUREMENT TO SAID BASE, SAID CLAMPING MEANS BEING ADJUSTABLE RELATIVE TO SAID BASE AND SAID LEAF SPRING IN A DIRECTION ALONG SAID LEAF SPRING WHEREBY TO SELECTIVELY ADJUST THE LENGTH OF SAID SPRING AND THEREBY ADJUST THE NATURAL PERIOD OF VIBRATION OF SAID TROUGH.
References Cited (Backward Citations)
US263375A
Cited
US2187717A
Cited
US2342116A
Cited
US2602350A
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US2630211A
Cited
US2967434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |