US3229501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Square cavity whistle detector
Assignee: Phillips Petroleum Co
•
Filing: 1963-04-01
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Granted: 1966-01-18
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Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 James C Henze
- 👤 Paul C Mcleod
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:56
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/62; G01N30/76; G01N29/00; G01N29/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A WHISTLE COMPRISING A BODY HAVING AN ELONGATED RECTANGULAR ORIFICE, SAID ORIFICE HAVING A CROSS-SECTION WITH A WIDTH-HEIGHT RATIO GREATER THAN ONE; MEANS TO INTRODUCE A FLUID TO A FIRST OPEN END OF SAID ORIFICE; A SHARP EDGE SPACED FROM AND ADJACENT A SECOND OPEN END OF SAID ORIFICE AND PARALLEL TO THE GREATER DIMENSION OF THE CROSS-SECTION OF SAID ORIFICE; SAID BODY HAVING A QUADRILATERAL RESONANT CAVITY, SAID CAVITY HAVING A FIRST OPEN END ADJACENT THE SECOND OPEN END OF SAID RECTANGULAR ORIFICE AND DISPOSED AT AN ANGLE WITHIN THE RANGE OF FROM ABOUT 120* TO 150* WITH RESPECT TO THE LONGITUDINAL DIMENSION OF SAID ORIFICE; AND MEANS TO CLOSE THE SECOND END OF SAID CAVITY AT VARIOUS DISTANCES FROM THE FIRST OPEN END OF SAID CAVITY.
Claim 2
Dependent Claim
128 words
A WHISTLE COMPRISING A BODY HAVING AN ELONGATED RECTANGULAR ORIFICE, SAID ORIFICE HAVING A CROSS-SECTION WITH A WIDTH-HEIGHT RATIO GREATER THAN ONE; MEANS TO INTRODUCE A FLUID TO A FIRST OPEN END OF SAID ORIFICE; A SHARP EDGE SPACED FROM AND ADJACENT A SECOND OPEN END OF SAID ORIFICE AND PARALLEL TO THE GREATER DIMENSION OF THE CROSS-SECTION OF SAID ORIFICE; SAID BODY HAVING A QUADRILATERAL RESONANT CAVITY, SAID CAVITY HAVING A FIRST OPEN END ADJACENT THE SECOND OPEN END OF SAID RECTANGULAR ORIFICE AND DISPOSED AT AN ANGLE WITHIN THE RANGE OF FROM ABOUT 120* TO 150* WITH RESPECT TO THE LONGITUDINAL DIMENSION OF SAID ORIFICE; AND MEANS TO CLOSE THE SECOND END OF SAID CAVITY AT VARIOUS DISTANCES FROM THE FIRST OPEN END OF SAID CAVITY.
References Cited (Backward Citations)
US394243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |