US3241727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-venting dispenser
Assignee: Individual
•
Filing: 1964-10-26
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Granted: 1966-03-22
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Expires: 1984-10-26
Abstract
No abstract record available.
Inventors
- 👤 Thomas P Heckman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:58
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/32; B65D47/00; B65D47/04; B65D47/20; B65D47/2018; B65D47/2056; B65D47/2062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
221 words
A DISPENSER COMPRISING A CONTAINER ADAPTED TO BE PARTIALLY FILLED WITH THE MATERIAL TO BE DISPENSED AND CONTAINING ENTRAPPED AIR, SAID CONTAINER HAVING A FIRST REGION WITH A PARTICULAR SHAPE CONFINED WITHIN A PLIANT WALL, DISTORTION OF THE SHAPE OF THE FIRST REGION DECREASING THE VOLUME OF THE REGION, SAID CONTAINER HAVING A SECOND REGION WITH A VOLUME RESPONSIVE TO THE RATIO OF THE PRESSURE OF THE ENTRAPPED AIR IN THE CONTAINER TO ATMOSPHERIC PRESSURE, SAID CONTAINER HAVING AN OPENING ADAPTED TO DISCHARGE THE CONTENTS FROM WITHIN THE CONTAINER, AND A PIN MECHANICALLY COUPLED TO THE SECOND REGION OF THE CONTAINER HAVING A REGION TRANSLATABLY DISPOSED WITHIN THE OPENING OF THE CONTAINER, SAID PIN BEING TRANSLATABLE RELATIVE TO THE OPENING RESPONSIVE TO THE VOLUME OF THE SECOND PORTION OF THE CONTAINER, SAID REGION OF THE PIN DISPOSED WITHIN THE OPENING HAVING A PROTRUDING FIRST PORTION WITH A CROSS SECTION OF SIMILAR SHAPE TO THE OPENING AND APPROXIMATING THE OPENING IN SIZE AND A SECOND PORTION DISPOSED ADJACENT TO THE FIRST PORTION AND BETWEEN THE FIRST PORTION AND THE SECOND REGION OF THE CONTAINER OF SMALLER CROSS SECTION THAN THE FIRST PORTION, THE FIRST PORTION BEING DISPOSED IN THE OPENING WHEN THE RATIO OF PRESSURES APPROXIMATES UNITY, AND BEING TRANSLATABLE OUT OF THE OPENING RESPONSIVE TO INCREASES AND DECREASES OF THE RATIO.
Claim 2
Dependent Claim
221 words
A DISPENSER COMPRISING A CONTAINER ADAPTED TO BE PARTIALLY FILLED WITH THE MATERIAL TO BE DISPENSED AND CONTAINING ENTRAPPED AIR, SAID CONTAINER HAVING A FIRST REGION WITH A PARTICULAR SHAPE CONFINED WITHIN A PLIANT WALL, DISTORTION OF THE SHAPE OF THE FIRST REGION DECREASING THE VOLUME OF THE REGION, SAID CONTAINER HAVING A SECOND REGION WITH A VOLUME RESPONSIVE TO THE RATIO OF THE PRESSURE OF THE ENTRAPPED AIR IN THE CONTAINER TO ATMOSPHERIC PRESSURE, SAID CONTAINER HAVING AN OPENING ADAPTED TO DISCHARGE THE CONTENTS FROM WITHIN THE CONTAINER, AND A PIN MECHANICALLY COUPLED TO THE SECOND REGION OF THE CONTAINER HAVING A REGION TRANSLATABLY DISPOSED WITHIN THE OPENING OF THE CONTAINER, SAID PIN BEING TRANSLATABLE RELATIVE TO THE OPENING RESPONSIVE TO THE VOLUME OF THE SECOND PORTION OF THE CONTAINER, SAID REGION OF THE PIN DISPOSED WITHIN THE OPENING HAVING A PROTRUDING FIRST PORTION WITH A CROSS SECTION OF SIMILAR SHAPE TO THE OPENING AND APPROXIMATING THE OPENING IN SIZE AND A SECOND PORTION DISPOSED ADJACENT TO THE FIRST PORTION AND BETWEEN THE FIRST PORTION AND THE SECOND REGION OF THE CONTAINER OF SMALLER CROSS SECTION THAN THE FIRST PORTION, THE FIRST PORTION BEING DISPOSED IN THE OPENING WHEN THE RATIO OF PRESSURES APPROXIMATES UNITY, AND BEING TRANSLATABLE OUT OF THE OPENING RESPONSIVE TO INCREASES AND DECREASES OF THE RATIO.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |