US3151845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: —
•
Filing: —
•
Granted: 1964-10-06
•
Expires: 1981-10-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:50
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/02; B29B7/22; B01; B01F; B01F33/00; B01F33/50; B01F33/501; B01F33/5011
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN A MIXING MACHINE (10) HAVING A ROTATABLE MIXING CHAMBER (13) AND MEANS (11) TO ROTATE THE CHAMBER; DRAIN APPARATUS INCLUDING A DRAIN VALVE FRAME (15) FIXED WITHIN THE WALL OF SAID CHAMBER, SAID FRAME HAVING AN ANNULAR BEARING PORTION (15A) AND A DEPENDING ANNULAR FLANGE (16) AND A PAIR OF OPPOSED PINS (17) FIXED IN SAID FLANGE AND EXTENDING INWARDLY THEREOF; SAID DRAIN APPARATUS ALSO INCLUDING A CYLINDRICAL PLUG MEMBER (23) HAVING SEALING MEANS (22) THEREON, SAID SEALING MEANS ENGAGING SAID BEARING PORTION TO EFFECT A SEAL, AND SAID PLUG MEMBER HAVING A DEPENDING OUTWARDLY EXTENDING RIM (25) HAVING A NOTCH (26) TO PASS A SAID PIN, THE DIAMETER OF SAID RIM BEING SMALLER THAN THE DIAMETER OF SAID FLANGE AND GREATER THAN THE DISTANCE BETWEEN THE INNER ENDS OF SAID PINS; WHEREBY WHEN SAID PLUG MEMBER IS ENGAGED WITHIN SAID BEARING PORTION SAID RIM IS SUPPORTED ON SAID PINS.
Claim 2
Dependent Claim
151 words
IN A MIXING MACHINE (10) HAVING A ROTATABLE MIXING CHAMBER (13) AND MEANS (11) TO ROTATE THE CHAMBER; DRAIN APPARATUS INCLUDING A DRAIN VALVE FRAME (15) FIXED WITHIN THE WALL OF SAID CHAMBER, SAID FRAME HAVING AN ANNULAR BEARING PORTION (15A) AND A DEPENDING ANNULAR FLANGE (16) AND A PAIR OF OPPOSED PINS (17) FIXED IN SAID FLANGE AND EXTENDING INWARDLY THEREOF; SAID DRAIN APPARATUS ALSO INCLUDING A CYLINDRICAL PLUG MEMBER (23) HAVING SEALING MEANS (22) THEREON, SAID SEALING MEANS ENGAGING SAID BEARING PORTION TO EFFECT A SEAL, AND SAID PLUG MEMBER HAVING A DEPENDING OUTWARDLY EXTENDING RIM (25) HAVING A NOTCH (26) TO PASS A SAID PIN, THE DIAMETER OF SAID RIM BEING SMALLER THAN THE DIAMETER OF SAID FLANGE AND GREATER THAN THE DISTANCE BETWEEN THE INNER ENDS OF SAID PINS; WHEREBY WHEN SAID PLUG MEMBER IS ENGAGED WITHIN SAID BEARING PORTION SAID RIM IS SUPPORTED ON SAID PINS.
References Cited (Backward Citations)
US75065A
Cited
US107050A
Cited
US151381A
Cited
US208292A
Cited
US1690735A
Cited
GB327256A
Cited
US2665028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |