US3156386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gravity ejector for invertible container
Assignee: Individual
•
Filing: 1962-07-27
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Granted: 1964-11-10
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Expires: 1982-07-27
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Kuechenmeister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:20
CPC Classifications
A; A47; A47G; A47G19/00; A47G19/30; A47G19/32; A47G19/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A DISPENSER COMPRISING: A CONTAINER HAVING AN ELONGATED PISTON CHAMBER AND A SPOUT COMMUNICATING WITH ONE END THEREOF; SAID SPOUT CONSTITUTING A PROPORTIONING CHAMBER; SAID CONTAINER HAVING A MATERIAL STORAGE CHAMBER COMMUNICATING WITH SAID PISTON CHAMBER ADJACENT SAID SPOUT; A GRAVITY OPERATED PISTON MEANS IN SAID PISTON CHAMBER SLIDABLY MOVABLE LENGTHWISE THEREOF AND NORMALLY CLEAR OF SAID SPOUT WHEN SAID CONTAINER IS UPRIGHT; SAID PROPORTIONING CHAMBER BEING OF SUBSTANTIAL LENGTH AND UNIFORM CROSS SECTION; SAID PISTON MEANS HAVING AN ELEMENT THEREON LONGER THAN SAID PROPORTIONING CHAMBER AND ARRANGED TO ENTER SAID SPOUT AND PASS ENTIRELY THROUGH SAID PROPORTIONING CHAMBER TO THE EXTERIOR OF SAID CONTAINER WHEN SAID CONTAINER IS INVERTED, THEREBY EJECTING A MEASURED CHARGE FROM SAID CONTAINER; SAID PISTON, UPON ENTERING SAID PROPORTIONING CHAMBER, SEALING THE SAME AGAINST ENTRY OF ADDITIONAL MATERIAL FROM BOTH SAID PISTON AND STORAGE CHAMBERS.
Claim 2
Dependent Claim
140 words
A DISPENSER COMPRISING: A CONTAINER HAVING AN ELONGATED PISTON CHAMBER AND A SPOUT COMMUNICATING WITH ONE END THEREOF; SAID SPOUT CONSTITUTING A PROPORTIONING CHAMBER; SAID CONTAINER HAVING A MATERIAL STORAGE CHAMBER COMMUNICATING WITH SAID PISTON CHAMBER ADJACENT SAID SPOUT; A GRAVITY OPERATED PISTON MEANS IN SAID PISTON CHAMBER SLIDABLY MOVABLE LENGTHWISE THEREOF AND NORMALLY CLEAR OF SAID SPOUT WHEN SAID CONTAINER IS UPRIGHT; SAID PROPORTIONING CHAMBER BEING OF SUBSTANTIAL LENGTH AND UNIFORM CROSS SECTION; SAID PISTON MEANS HAVING AN ELEMENT THEREON LONGER THAN SAID PROPORTIONING CHAMBER AND ARRANGED TO ENTER SAID SPOUT AND PASS ENTIRELY THROUGH SAID PROPORTIONING CHAMBER TO THE EXTERIOR OF SAID CONTAINER WHEN SAID CONTAINER IS INVERTED, THEREBY EJECTING A MEASURED CHARGE FROM SAID CONTAINER; SAID PISTON, UPON ENTERING SAID PROPORTIONING CHAMBER, SEALING THE SAME AGAINST ENTRY OF ADDITIONAL MATERIAL FROM BOTH SAID PISTON AND STORAGE CHAMBERS.
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) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |