US3130812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silencers
Assignee: Individual
•
Filing: 1963-01-17
•
Granted: 1964-04-28
•
Expires: 1983-01-17
Abstract
No abstract record available.
Inventors
- 👤 Hubrich Christoph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:22
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/08; F01N1/12; F01N1/125; F01N1/10; F04; F04B; F04B39/00; F04B39/0027; F04B39/0083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A SILENCER FOR PRESSURE FLUID FLOW, COMPRISING: (A) A CASING HAVING AN ANNULAR EXPANSION CHAMBER OF SERIES CONNECTED PROGRESSIVELY ENLARGING EXPANSION POCKETS DISPOSED AT ONE END WITH AN INLET TO RECEIVE PRESSURE FLUID, AN ELONGATED EXPANSION CHAMBER COMMUNICATING AT ONE END WITH THE ANNULAR CHAMBER AND EXTENDING TOWARD THE OTHER END OF THE CASING, AND A WALL AT THE OTHER END OF THE CASING CLOSING THE END OF THE ELONGATED CHAMBER THEREAT; (B) AND A TUBULAR MEMBER DISPOSED IN THE ELONGATED CHAMBER HAVING ONE END SPACED FROM THE END WALL TO
Claim 2
Dependent Claim
91 words
A SILENCER FOR PRESSURE FLUID FLOW, COMPRISING: (A) A CASING HAVING AN ANNULAR EXPANSION CHAMBER OF SERIES CONNECTED PROGRESSIVELY ENLARGING EXPANSION POCKETS DISPOSED AT ONE END WITH AN INLET TO RECEIVE PRESSURE FLUID, AN ELONGATED EXPANSION CHAMBER COMMUNICATING AT ONE END WITH THE ANNULAR CHAMBER AND EXTENDING TOWARD THE OTHER END OF THE CASING, AND A WALL AT THE OTHER END OF THE CASING CLOSING THE END OF THE ELONGATED CHAMBER THEREAT; (B) AND A TUBULAR MEMBER DISPOSED IN THE ELONGATED CHAMBER HAVING ONE END SPACED FROM THE END WALL TO
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |