US3214067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid dispenser
Assignee: Individual
•
Filing: 1962-09-11
•
Granted: 1965-10-26
•
Expires: 1982-09-11
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Linington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:29
CPC Classifications
F; F16; F16N; F16N11/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
153 words
IN A FLUID DISPENSER, A CYLINDER CLOSED AT ONE END, A PISTON POSITIONED WITHIN SAID CYLINDER AND DIVIDING SAID CYLINDER INTO A DISPENSING CHAMBER AND A SPRING CHAMBER, A DISPENSING APERTURE IN THE END OF SAID DISPENSING CHAMBER OPPOSITE TO SAID PISTON, A GAS UNDER PRESSURE LOADED WITHIN SAID SPRING CHAMBER, AND A TENSION SPRING ALSO MOUNTED IN THE SAME CHAMBER, SAID TENSION SPRING ATTACHED AT ONE END TO SAID PISTON AND ATTACHED AT ITS OPPOSITE TO THE CLOSED END OF SAID CYLINDER, SAID DISPENSING CHAMBER FILLED WITH A VISCOUS FLOWABLE MATERIAL, SAID COMPRESSED GAS HAVING A THRUST EQUAL TO THE PULL OF SAID TENSION SPRING INITIALLY AND SAID TENSION SPRING LOADED TO ITS ELASTIC LIMIT INITIALLY, SAID TENSION SPRING STRETCHING FURTHER UNDER A COLD FLOW DEFLECTING AFTER ITS ELASTIC LIMIT HAS BEEN REACHED, SAID COMPRESSED GAS DISPENSING SAID FLOWABLE MATERIAL BY MOVING SAID PISTON DURING THE FURTHER DEFLECTION OF SAID TENSION SPRING.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |