US3302552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venting apparatus including venturi means
Assignee: Gulf Research and Development Co
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Filing: 1965-03-17
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Granted: 1967-02-07
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Expires: 1985-03-17
Abstract
No abstract record available.
Inventors
- 👤 Bruce R Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:39
CPC Classifications
F; F23; F23L; F23L17/00; F23L17/02; F23L17/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A VENTING APPARATUS COMPRISING A PAIR OF SAUCERLIKE DISKS WHOSE CONVEX SURFACES FACE EACH OTHER, FIRST SUPPORT MEANS ADAPTED TO SUPPORT SAID DISKS IN COAXIAL SPACED-APART RELATIONSHIP, CENTRAL OPENING MEANS IN AT LEAST ONE OF SAID FACING DISKS, A PAIR OF CURVED PLATES DISPOSED BETWEEN SAID DISKS ON DIAMETRICALLY OPPOSED SIDES OF SAID CENTRAL OPENING MEANS WITH THE CONVEX SURFACES OF SAID PLATES FACING EACH OTHER ACROSS SAID CENTRAL OPENING MEANS, EACH OF SAID PLATES CONTOURED LONGITUDINALLY TO CORRESPOND TO, BE SLIGHTLY SPACED-APART FROM, THE CONMTIGUOUS SURFACES OF SAID DISKS TO DEFINE A VENTURI CHANNEL BOUNDED ON TWO LATERAL SIDES BY SAID PAIR OF PLATES AND BOUNDED FROM ABOVE AND BELOW BY SAID DISKS WITH SAID CENTRAL OPENING DISPOSED AT THE THROAT OF SAID VENTURI CHANNEL, SECOND SUPPORT MEANS FOR SECURING SAID PLATES IN FIXED SPACED-APART RELATIONSHIP, RUDDER MEANS ATTACHED TO SAID PLATES AND PROJECTING BEYOND AN END OF SAID PLATES, ROTATABLE MEANS, SAID PLATES MOUNTED ON SAID ROTATABLE
Claim 2
Dependent Claim
159 words
A VENTING APPARATUS COMPRISING A PAIR OF SAUCERLIKE DISKS WHOSE CONVEX SURFACES FACE EACH OTHER, FIRST SUPPORT MEANS ADAPTED TO SUPPORT SAID DISKS IN COAXIAL SPACED-APART RELATIONSHIP, CENTRAL OPENING MEANS IN AT LEAST ONE OF SAID FACING DISKS, A PAIR OF CURVED PLATES DISPOSED BETWEEN SAID DISKS ON DIAMETRICALLY OPPOSED SIDES OF SAID CENTRAL OPENING MEANS WITH THE CONVEX SURFACES OF SAID PLATES FACING EACH OTHER ACROSS SAID CENTRAL OPENING MEANS, EACH OF SAID PLATES CONTOURED LONGITUDINALLY TO CORRESPOND TO, BE SLIGHTLY SPACED-APART FROM, THE CONMTIGUOUS SURFACES OF SAID DISKS TO DEFINE A VENTURI CHANNEL BOUNDED ON TWO LATERAL SIDES BY SAID PAIR OF PLATES AND BOUNDED FROM ABOVE AND BELOW BY SAID DISKS WITH SAID CENTRAL OPENING DISPOSED AT THE THROAT OF SAID VENTURI CHANNEL, SECOND SUPPORT MEANS FOR SECURING SAID PLATES IN FIXED SPACED-APART RELATIONSHIP, RUDDER MEANS ATTACHED TO SAID PLATES AND PROJECTING BEYOND AN END OF SAID PLATES, ROTATABLE MEANS, SAID PLATES MOUNTED ON SAID ROTATABLE
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |