US3177706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid inspection device
Assignee: Raytheon Co
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Filing: 1963-01-24
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Granted: 1965-04-13
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Expires: 1983-01-24
Abstract
No abstract record available.
Inventors
- 👤 Robert M Shuman
- 👤 William C Serjak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:26
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/01; G01N21/03; G01N21/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A FLUID INSPECTION DEVICE COMPRISING: A HOUSING HAVING A FLUID INLET PORT, A FLUID OUTLET PORT AND A CAVITY COMMUNICATING WITH BOTH OF SAID PORTS AND HAVING OPENINGS EXTENDING THROUGH OPPOSITE SIDES OF SAID HOUSING; A PAIR OF AXIALLY DISPLACEABLE HOLLOW BUSHINGS DISPOSED IN SAID OPENINGS, RESPECTIVELY, AND HAVING OPEN CONFRONTING MATING EXTREMITIES IN SAID CAVITY; AND A TRANSPARENT PLATE IN EACH OF SAID OPEN CONFRONTING MATING EXTERMITIES, SEALING SAID HOLLOW BUSHINGS, ONE OF SAID TRANSPARENT PLATES BEING RECESSED FROM THE EXTREMITY OF ITS BUSHING MAINTAINING A SPACING BETWEEN THE FACES OF SAID TRANSPARENT PLATES WHEN SAID MATING EXTREMITIES ARE ENGAGED.
Claim 2
Dependent Claim
101 words
A FLUID INSPECTION DEVICE COMPRISING: A HOUSING HAVING A FLUID INLET PORT, A FLUID OUTLET PORT AND A CAVITY COMMUNICATING WITH BOTH OF SAID PORTS AND HAVING OPENINGS EXTENDING THROUGH OPPOSITE SIDES OF SAID HOUSING; A PAIR OF AXIALLY DISPLACEABLE HOLLOW BUSHINGS DISPOSED IN SAID OPENINGS, RESPECTIVELY, AND HAVING OPEN CONFRONTING MATING EXTREMITIES IN SAID CAVITY; AND A TRANSPARENT PLATE IN EACH OF SAID OPEN CONFRONTING MATING EXTERMITIES, SEALING SAID HOLLOW BUSHINGS, ONE OF SAID TRANSPARENT PLATES BEING RECESSED FROM THE EXTREMITY OF ITS BUSHING MAINTAINING A SPACING BETWEEN THE FACES OF SAID TRANSPARENT PLATES WHEN SAID MATING EXTREMITIES ARE ENGAGED.
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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |