Patent US3072284A successfully refreshed from Google Patents.
US3072284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vent
Assignee: Dairy Equipment Co
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Filing: 1960-06-09
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Granted: 1963-01-08
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Expires: 1980-06-09
Abstract
No abstract record available.
Inventors
- 👤 Jr George B Luhman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:03
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/18; F16K17/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
A VENTING MEANS FOR A TANK ADAPTED TO CONTAIN LIQUIDS, COMPRISING A HOLLOW CYLINDRICAL BODY MEMBER SECURED TO THE TANK AND COMMUNICATING WITH AN OPENING THEREIN, A FIRST CIRCULAR BAFFLE MEMBER HAVING AN OPENING OF GIVEN AREA CENTRALLY THEREOF AND DISPOSED IN BEARING ENGAGEMENT WITH THE UPPER PORTION OF THE BODY MEMBER AND EXTENDING AXIALLY INTO THE BODY MEMBER, A SECOND CIRCULAR BAFFLE MEMBER OVERLYING SAID FIRST BAFFLE MEMBER AND HAVING AN OPENING AT LEAST AS LARGE AS THE OPENING IN SAID FIRST BAFFLE MEMBER AND GENERALLY ALIGNED WITH THE OPENING IN SAID FIRST BAFFLE MEMBER, A THIRD CIRCULAR BAFFLE MEMBER HAVING A PERIPHERAL PORTION DISPOSED BETWEEN SAID FIRST AND SECOND BAFFLE MEMBERS, SAID THIRD BAFFLE MEMBER BEING SPACED FROM SAID FIRST AND SECOND BAFFLE MEMBERS INTERMEDIATE SAID PERIPHERAL PORTION AND HAVING A PLURALITY OF OPENINGS OFFSET OUTWARDLY FROM THE GENERALLY ALIGNED OPENINGS IN THE FIRST AND SECOND BAFFLE MEMBERS WITH THE SUM OF THE CROSS-SECTIONAL AREAS OF SAID PLURALITY OF OPENINGS BEING SUBSTANTIALLY EQUAL TO THE AREA OF THE OPENING IN THE FIRST BAFFLE MEMBER, AND MEANS REMOVABLY SECURING THE BAFFLE MEMBERS RELATIVE TO EACH OTHER AND TO THE BODY MEMBER.
Claim 2
Dependent Claim
192 words
A VENTING MEANS FOR A TANK ADAPTED TO CONTAIN LIQUIDS, COMPRISING A HOLLOW CYLINDRICAL BODY MEMBER SECURED TO THE TANK AND COMMUNICATING WITH AN OPENING THEREIN, A FIRST CIRCULAR BAFFLE MEMBER HAVING AN OPENING OF GIVEN AREA CENTRALLY THEREOF AND DISPOSED IN BEARING ENGAGEMENT WITH THE UPPER PORTION OF THE BODY MEMBER AND EXTENDING AXIALLY INTO THE BODY MEMBER, A SECOND CIRCULAR BAFFLE MEMBER OVERLYING SAID FIRST BAFFLE MEMBER AND HAVING AN OPENING AT LEAST AS LARGE AS THE OPENING IN SAID FIRST BAFFLE MEMBER AND GENERALLY ALIGNED WITH THE OPENING IN SAID FIRST BAFFLE MEMBER, A THIRD CIRCULAR BAFFLE MEMBER HAVING A PERIPHERAL PORTION DISPOSED BETWEEN SAID FIRST AND SECOND BAFFLE MEMBERS, SAID THIRD BAFFLE MEMBER BEING SPACED FROM SAID FIRST AND SECOND BAFFLE MEMBERS INTERMEDIATE SAID PERIPHERAL PORTION AND HAVING A PLURALITY OF OPENINGS OFFSET OUTWARDLY FROM THE GENERALLY ALIGNED OPENINGS IN THE FIRST AND SECOND BAFFLE MEMBERS WITH THE SUM OF THE CROSS-SECTIONAL AREAS OF SAID PLURALITY OF OPENINGS BEING SUBSTANTIALLY EQUAL TO THE AREA OF THE OPENING IN THE FIRST BAFFLE MEMBER, AND MEANS REMOVABLY SECURING THE BAFFLE MEMBERS RELATIVE TO EACH OTHER AND TO THE BODY MEMBER.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |