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Patent US3692037A successfully refreshed from Google Patents.
US3692037A
Expired / Lapsed
US
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Jet sensor device
Assignee: Parker Hannifin Corp
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Filing: 1970-08-28
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Granted: 1972-09-19
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Expires: 1990-08-28
Abstract
Abstract This disclosure relates to a jet sensor having a clog preventing flow out from a sensing passage in a direction opposite to the normal direction of flow. The clog preventing flow is controlled by an orifice plug seated in the sensing passage.
Inventors
- 👤 Carlos D Pinkstaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:11
CPC Classifications
F; F15; F15B; F15B5/00; F15B5/003; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2322
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
207 words
A jet sensor comprising a notched body, a first supply passage in said body opening into the notch in said body, a sensing passage in said body opening from said notch in alignment with said first supply passage for normally receiving a sensing jet of fluid from said first supply passage across said notch, an orifice plug removably seated in said sensing passage adjacent said notch and having a through orifice in part defining a fluid flow path through said sensing passage, and a second supply passage in said body for directing a sensing passage clog preventing flow into said sensing passage, said orifice plug having an external peripheral flow passage aligned with said second supply passage for receiving clog preventing fluid flow therefrom and a second orifice extending from said peripheral flow passage into said through orifice in angular relation thereto and generally facing said first supply passage for directing said clog preventing flow in positive opposing relation to normal sensing flow of fluid through said sensing passage from said first supply passage across said notch; said second supply passage, said peripheral flow passage and said second orifices being of sizes to assure said clog preventing flow being sufficiently great to constantly flow into said notch.
Claim 2
Dependent Claim
207 words
A jet sensor comprising a notched body, a first supply passage in said body opening into the notch in said body, a sensing passage in said body opening from said notch in alignment with said first supply passage for normally receiving a sensing jet of fluid from said first supply passage across said notch, an orifice plug removably seated in said sensing passage adjacent said notch and having a through orifice in part defining a fluid flow path through said sensing passage, and a second supply passage in said body for directing a sensing passage clog preventing flow into said sensing passage, said orifice plug having an external peripheral flow passage aligned with said second supply passage for receiving clog preventing fluid flow therefrom and a second orifice extending from said peripheral flow passage into said through orifice in angular relation thereto and generally facing said first supply passage for directing said clog preventing flow in positive opposing relation to normal sensing flow of fluid through said sensing passage from said first supply passage across said notch; said second supply passage, said peripheral flow passage and said second orifices being of sizes to assure said clog preventing flow being sufficiently great to constantly flow into said notch.
Claim 3
Dependent Claim
76 words
The jet sensor of claim 1 wherein said body includes a wall, said sensing passage and said first supply passage opening through said wall, said second supply passage being in communication with said first supply passage for receiving fluid therefrom, and the path of fluid flow within said body to said sensing passage through said second supply passage being shorter than the path of flow of sensing fluid through said first supply passage to said notch.
Claim 4
Dependent Claim
23 words
The jet sensor of claim 1 wherein said second orifice is of a reduced cross sectional area as compared to said through orifice.
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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |