US3278090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory tray feeder
Assignee: Individual
•
Filing: 1965-03-25
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Granted: 1966-10-11
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Expires: 1985-03-25
Abstract
No abstract record available.
Inventors
- 👤 Eugene A Wahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:07
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/64; B65D88/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
APPARATUS FOR DISCHARGING GRANULAR OR POWDERED MATERIALS AT A PREDETERMINED RATE, COMPRISING, (A) A VERTICALLY-DISPOSED SUPPLY HOPPER HAVING A SLOPING BOTTOM TERMINATING IN A DISCHARGE OPENING. (B) A GENERALLY FUNNEL-SHAPED AUXILIARY HOPPER HAVING A BASE SPACED FROM THE WALL OF THE SUPPLY HOPPER AND LYING IN A PLANE ABOVE THAT CONTAINING THE DISCHARGE OPENING OF THE SUPPLY HOPPER, SAID AUXILIARY HOPPER TERMINATING IN A HOLLOW CYLINDRICAL DOWNSPOT, (C) AN ELONGATED TROUGH HAVING AN OPEN END, (D) AN INVERTED CONICAL MEMBER CARRIED BY THE TROUGH AND HAVING AN APEX EXTENDING INTO THE SAID DOWNSPOUT,
Claim 2
Dependent Claim
93 words
APPARATUS FOR DISCHARGING GRANULAR OR POWDERED MATERIALS AT A PREDETERMINED RATE, COMPRISING, (A) A VERTICALLY-DISPOSED SUPPLY HOPPER HAVING A SLOPING BOTTOM TERMINATING IN A DISCHARGE OPENING. (B) A GENERALLY FUNNEL-SHAPED AUXILIARY HOPPER HAVING A BASE SPACED FROM THE WALL OF THE SUPPLY HOPPER AND LYING IN A PLANE ABOVE THAT CONTAINING THE DISCHARGE OPENING OF THE SUPPLY HOPPER, SAID AUXILIARY HOPPER TERMINATING IN A HOLLOW CYLINDRICAL DOWNSPOT, (C) AN ELONGATED TROUGH HAVING AN OPEN END, (D) AN INVERTED CONICAL MEMBER CARRIED BY THE TROUGH AND HAVING AN APEX EXTENDING INTO THE SAID DOWNSPOUT,
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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |