US3201001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulverulent materials dispenser
Assignee: Hexion Inc
•
Filing: 1962-10-12
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Granted: 1965-08-17
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Expires: 1982-10-12
Abstract
No abstract record available.
Inventors
- 👤 Victor I Roberts
- 👤 Maynard H Riddell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:00
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/10; G01F11/12; G01F11/20; G01F11/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A DEVICE FOR DISPENSING PREDETERMINED VOLUMES OF A PULVERULENT MATERIAL COMPRISING A STATIONARY BASE HAVING AN EXHAUST APERTURE EXTENDING THERETHROUGH, A HOPPER AFFIXED TO SAID STATIONARY BASE AND HAVING AN ARCUATE HOLE FOR DISCHARGE IN THE BOTTOM THEREOF, A ROTATABLE SHAFT EXTENDING VERTICALLY THROUGH SAID STATIONARY BASE AND INTO SAID HOPPER, A ROTATABLE MEMBER WEITH CIRCUMFERENTIALLY SPACED CAVITIES EACH OF PREDETERMINED VOLUME MOUNTED ON SAID SHAFT BETWEEN SAID STATIONARY BASE AND SAID HOPPER, SAID ROTATABLE MEMBER BEING MOVED BY SAID SHAFT THROUGH A CIRCULAR PATH IN STEPWISE FASHION SEQUENTIALLY TO REGISTER EACH CAVITY FIRST WITH SAID ARCUTE HOLE AND LATER WITH SAID EXHAUST APERTURE, DETENT MEANS RESILIENTLY TO LATCH SAID ROTATABLY MEMBER AT THE END OF EACH STEPWISE MOVEMENT, AND AGITATOR MEANS FOR AGITATING PULVERULENT MATERIAL IN SAID HOPPER, SAID AGITATOR MEANS COMPRISING AT LEAST ONE RESILIENT ROD AFFIXEDD TO SAID SHAFT AND HAVING A PORTION THEREOF EXTENDING DOWNWARDLY WITH THE LOWER END BENT UPWARDLY TO FORM A U-SHAPED LOOP WHOSE BOTTOM EDGE RIDES INTO AND OUT OF SAID ARCUATE HOLE TO HELP FORCE THE PULVERULENT MATERIAL INTO SAID CAVITIES.
Claim 2
Independent Claim
180 words
A DEVICE FOR DISPENSING PREDETERMINED VOLUMES OF A PULVERULENT MATERIAL COMPRISING A STATIONARY BASE HAVING AN EXHAUST APERTURE EXTENDING THERETHROUGH, A HOPPER AFFIXED TO SAID STATIONARY BASE AND HAVING AN ARCUATE HOLE FOR DISCHARGE IN THE BOTTOM THEREOF, A ROTATABLE SHAFT EXTENDING VERTICALLY THROUGH SAID STATIONARY BASE AND INTO SAID HOPPER, A ROTATABLE MEMBER WEITH CIRCUMFERENTIALLY SPACED CAVITIES EACH OF PREDETERMINED VOLUME MOUNTED ON SAID SHAFT BETWEEN SAID STATIONARY BASE AND SAID HOPPER, SAID ROTATABLE MEMBER BEING MOVED BY SAID SHAFT THROUGH A CIRCULAR PATH IN STEPWISE FASHION SEQUENTIALLY TO REGISTER EACH CAVITY FIRST WITH SAID ARCUTE HOLE AND LATER WITH SAID EXHAUST APERTURE, DETENT MEANS RESILIENTLY TO LATCH SAID ROTATABLY MEMBER AT THE END OF EACH STEPWISE MOVEMENT, AND AGITATOR MEANS FOR AGITATING PULVERULENT MATERIAL IN SAID HOPPER, SAID AGITATOR MEANS COMPRISING AT LEAST ONE RESILIENT ROD AFFIXEDD TO SAID SHAFT AND HAVING A PORTION THEREOF EXTENDING DOWNWARDLY WITH THE LOWER END BENT UPWARDLY TO FORM A U-SHAPED LOOP WHOSE BOTTOM EDGE RIDES INTO AND OUT OF SAID ARCUATE HOLE TO HELP FORCE THE PULVERULENT MATERIAL INTO SAID CAVITIES.
References Cited (Backward Citations)
US1252121A
Cited
US1416156A
Cited
US1566187A
Cited
US1939703A
Cited
US2314031A
Cited
US2685390A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |