US3288053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed valve
Assignee: General Mills Inc
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Filing: 1963-05-31
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Granted: 1966-11-29
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Expires: 1983-05-31
Abstract
No abstract record available.
Inventors
- 👤 Harold V Perttula
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:21
CPC Classifications
A; A21; A21B; A21B5/00; A23; A23P; A23P30/00; A23P30/30; A23P30/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A MECHANISM HAVING A PRESSURIZED PROCESSING CHAMBER, INTO WHICH MATERIAL TO BE PROCESSED IS FED FROM A FIRST SUPPLY MEANS AND A PRESSURIZED PROCESSING FLUID IS FED FROM A SECOND SUPPLY MEANS, AN IMPROVED FEED VALVE COMPRISING: FIRST AND SECOND VALVE MEMBERS RELATIVELY MOVABLE WITH RESPECT TO EACH OTHER FROM FIRST TO SECOND TO THIRD OPERATING POSITIONS; SAID FIRST MEMBER HAVING FIRST PORT INLET MEANS CONNECTING TO SAID FIRST SUPPLY MEANS, SECOND PORT INLET MEANS CONNECTING TO SAID SECOND SUPPLY MEANS, PORT OUTLET MEANS CONNECTING TO SAID PROCESSING CHAMBER, AND PRESSURE RELIEF PORT MEANS; SAID SECOND MEMBER HAVING AT LEAST ONE VALVE PASSAGE THERETHROUGH HAVING FIRST AND SECOND OPENINGS; SAID PORT INLET AND OUTLET MEANS, SAID RELIEF PORT MEANS AND SAID VALVE PASSAGE OPENINGS BEING CONSTRUCTED AND LOCATED IN SAID MEMBERS SUCH THAT IN SAID FIRST OPERATING POSITION SAID FIRST VALVE
Claim 2
Dependent Claim
142 words
IN A MECHANISM HAVING A PRESSURIZED PROCESSING CHAMBER, INTO WHICH MATERIAL TO BE PROCESSED IS FED FROM A FIRST SUPPLY MEANS AND A PRESSURIZED PROCESSING FLUID IS FED FROM A SECOND SUPPLY MEANS, AN IMPROVED FEED VALVE COMPRISING: FIRST AND SECOND VALVE MEMBERS RELATIVELY MOVABLE WITH RESPECT TO EACH OTHER FROM FIRST TO SECOND TO THIRD OPERATING POSITIONS; SAID FIRST MEMBER HAVING FIRST PORT INLET MEANS CONNECTING TO SAID FIRST SUPPLY MEANS, SECOND PORT INLET MEANS CONNECTING TO SAID SECOND SUPPLY MEANS, PORT OUTLET MEANS CONNECTING TO SAID PROCESSING CHAMBER, AND PRESSURE RELIEF PORT MEANS; SAID SECOND MEMBER HAVING AT LEAST ONE VALVE PASSAGE THERETHROUGH HAVING FIRST AND SECOND OPENINGS; SAID PORT INLET AND OUTLET MEANS, SAID RELIEF PORT MEANS AND SAID VALVE PASSAGE OPENINGS BEING CONSTRUCTED AND LOCATED IN SAID MEMBERS SUCH THAT IN SAID FIRST OPERATING POSITION SAID FIRST VALVE
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |