US3333549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid dispenser
Assignee: Silgan Dispensing Systems Corp
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Filing: 1965-06-23
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Granted: 1967-08-01
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Expires: 1985-06-23
Abstract
No abstract record available.
Inventors
- 👤 Rex C Cooprider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:56
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/34; B05B1/3405; B05B1/341; B05B1/3421; B05B1/3431; B05B11/00; B05B11/01; B05B11/10; B05B11/1001; B05B11/1004; B05B11/1038; B05B11/1039; B05B11/1042; B05B11/1073; B05B11/1074; B05B11/1098
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A LIQUID DISPENSING PUMP, COMPRISING A SLEEVE-LIKE HOUSING OPEN AT BOTH ENDS, A TUBULAR PLUNGER GUIDED FOR RECIPROCATION IN SAID HOUSING THROUGH ONE OPEN END THEREOF, A DIP TUBE HAVING ONE END EXTENDING INTO THE HOUSING THROUGH THE OTHER OPEN END THEREOF AND DEFINING AN INLET PORT FOR THE PUMP, SAID TUBE BEING SUPPORTED IN THE HOUSING AGAINST MOVEMENT IN THE DIRECTION OF SAID PLUNGER RECIPROCATION, SAID TUBULAR PLUNGER TELESCOPICALLY RECEIVING SAID ONE END OF THE DIP TUBE IN SNUG SUBSTANTIALLY FLUID-TIGHT RELATION FOR RECIPROCATION RELATIVE TO THE DIP TUBE, SAID PLUNGER AND SAID DIP TUBE THUS JOINTLY DEFINING A VARIABLE VOLUME PUMP CHAMBER, CHECK VALVE MEANS CONTROLLING SAID INLET PORT TO PREVENT REVERSE FLOW OF LIQUID
Claim 2
Dependent Claim
117 words
A LIQUID DISPENSING PUMP, COMPRISING A SLEEVE-LIKE HOUSING OPEN AT BOTH ENDS, A TUBULAR PLUNGER GUIDED FOR RECIPROCATION IN SAID HOUSING THROUGH ONE OPEN END THEREOF, A DIP TUBE HAVING ONE END EXTENDING INTO THE HOUSING THROUGH THE OTHER OPEN END THEREOF AND DEFINING AN INLET PORT FOR THE PUMP, SAID TUBE BEING SUPPORTED IN THE HOUSING AGAINST MOVEMENT IN THE DIRECTION OF SAID PLUNGER RECIPROCATION, SAID TUBULAR PLUNGER TELESCOPICALLY RECEIVING SAID ONE END OF THE DIP TUBE IN SNUG SUBSTANTIALLY FLUID-TIGHT RELATION FOR RECIPROCATION RELATIVE TO THE DIP TUBE, SAID PLUNGER AND SAID DIP TUBE THUS JOINTLY DEFINING A VARIABLE VOLUME PUMP CHAMBER, CHECK VALVE MEANS CONTROLLING SAID INLET PORT TO PREVENT REVERSE FLOW OF LIQUID
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |