US3281123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Proportioning and mixing device
Assignee: Individual
•
Filing: 1965-04-13
•
Granted: 1966-10-25
•
Expires: 1985-04-13
Abstract
No abstract record available.
Inventors
- 👤 Dailey Harvey Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:35
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/686
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A DEVICE FOR MIXING LIQUID CHEMICALS HAVING A WATER PRESSURE TANK AND A COLLAPSIBLE RECEPTACLE FOR LIQUID CHEMICAL SUBJECT TO THE PRESSURE WITHIN SAID TANK, A MIXING DEVICE COMPRISING IN COMBINATION; MEANS DEFINING A CONFINED MIXING CHAMBER AND A SEPARATE CHAMBER COMMUNICATION WITH AN OUTLET, MEANS FOR ADMITTING LIQUID FROM SAID RECEPTACLE AND WATER FROM SAID TANK UNDER PRESSURE IN PREDETERMINED PROPORTIONS TO SAID CONFINED CHAMBER TO FORM A MIXTURE, A MEANS FOR ADMITTING SAID MIXTURE AND WATER FROM SAID TANK TO SAID SEPARATE CHAMBER IN PREDETERMINED PROPORTIONS TO FURTHER DILUTE SAID MIXTURE.
Claim 2
Dependent Claim
94 words
IN A DEVICE FOR MIXING LIQUID CHEMICALS HAVING A WATER PRESSURE TANK AND A COLLAPSIBLE RECEPTACLE FOR LIQUID CHEMICAL SUBJECT TO THE PRESSURE WITHIN SAID TANK, A MIXING DEVICE COMPRISING IN COMBINATION; MEANS DEFINING A CONFINED MIXING CHAMBER AND A SEPARATE CHAMBER COMMUNICATION WITH AN OUTLET, MEANS FOR ADMITTING LIQUID FROM SAID RECEPTACLE AND WATER FROM SAID TANK UNDER PRESSURE IN PREDETERMINED PROPORTIONS TO SAID CONFINED CHAMBER TO FORM A MIXTURE, A MEANS FOR ADMITTING SAID MIXTURE AND WATER FROM SAID TANK TO SAID SEPARATE CHAMBER IN PREDETERMINED PROPORTIONS TO FURTHER DILUTE SAID MIXTURE.
References Cited (Backward Citations)
GB191136A
Cited
US2747934A
Cited
US2825524A
Cited
FR1249996A
Cited
FR1241556A
Cited
US3219483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |