US3146920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispenser for metered amounts of fluid
Assignee: Mead Johnson and Co LLC
•
Filing: 1962-03-08
•
Granted: 1964-09-01
•
Expires: 1982-03-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas A Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:21
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/02; G01F11/021; G01F11/025; G01F11/028; B; B05; B05B; B05B11/00; B05B11/01; B05B11/10; B05B11/1001; B05B11/1004; B05B11/1042; B05B11/1066; B05B11/107; B05B11/1073; B05B11/1074
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A DISPENSER FOR DISPENSING A MEASURED AMOUNT OF FLUID FROM A FLUID SOURCE, COMPRISING: A DEVICE, MEANS FOR SUPPLYING FLUID TO SAID DEVICE INCLUDING A FIRST PISTON SLIDABLY MOUNTED IN A FIRST CYLINDER, SAID FIRST PISTON HAVING MEANS ESTABLISHING COMMUNICATION BETWEEN SAID FIRST CYLINDER AND A FLUID SOURCE, SAID LATTER MEANS INCLUDING A HOLLOW TUBE; MEANS FOR EJECTING THE MEASURED AMOUNT OF FLUID FROM SAID DEVICE INCLUDING AN ANNULAR PISTON HAVING AN OUTLET PASSAGE THEREIN AND EXTENDING THROUGH SAID ANNULAR PISTON, SAID ANNULAR PISTON SLIDABLY MOUNTED IN AN ANNULAR CYLINDER, SAID EJECTING MEANS BEING MOUNTED COAXIALLY WITH SAID SUPPLYING MEANS, SAID FIRST CYLINDER AND SAID ANNULAR CYLINDER SEQUENTIALLY BEING IN FREE FLUID COMMUNICATION FOR FEEDING AN UNMEASURED AMOUNT OF FLUID TO SAID FIRST CYLINDER, SAID ANNULAR CYLINDER ADAPTED TO RE-
Claim 2
Dependent Claim
130 words
A DISPENSER FOR DISPENSING A MEASURED AMOUNT OF FLUID FROM A FLUID SOURCE, COMPRISING: A DEVICE, MEANS FOR SUPPLYING FLUID TO SAID DEVICE INCLUDING A FIRST PISTON SLIDABLY MOUNTED IN A FIRST CYLINDER, SAID FIRST PISTON HAVING MEANS ESTABLISHING COMMUNICATION BETWEEN SAID FIRST CYLINDER AND A FLUID SOURCE, SAID LATTER MEANS INCLUDING A HOLLOW TUBE; MEANS FOR EJECTING THE MEASURED AMOUNT OF FLUID FROM SAID DEVICE INCLUDING AN ANNULAR PISTON HAVING AN OUTLET PASSAGE THEREIN AND EXTENDING THROUGH SAID ANNULAR PISTON, SAID ANNULAR PISTON SLIDABLY MOUNTED IN AN ANNULAR CYLINDER, SAID EJECTING MEANS BEING MOUNTED COAXIALLY WITH SAID SUPPLYING MEANS, SAID FIRST CYLINDER AND SAID ANNULAR CYLINDER SEQUENTIALLY BEING IN FREE FLUID COMMUNICATION FOR FEEDING AN UNMEASURED AMOUNT OF FLUID TO SAID FIRST CYLINDER, SAID ANNULAR CYLINDER ADAPTED TO RE-
References Cited (Backward Citations)
US2214714A
Cited
US2880914A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |