Patent US3347338A successfully refreshed from Google Patents.
US3347338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound suppressor with baffle grids arranged across fluid stream passageway
Assignee: Individual
•
Filing: 1965-06-28
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Granted: 1967-10-17
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Expires: 1985-06-28
Abstract
No abstract record available.
Inventors
- 👤 Albert F Childress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:09
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
AN APPARATUS FOR SUPPRESSING SOUND CARRIED BY A HIGH VELOCITY FLUID STREAM COMPRISING (A) A PASSAGEWAY THROUGH WHICH SAID STREAM IS MOVING AND (B) A DETACHABLY REMOVABLE, SOUND DEADENING MEANS POSITIONED WITHIN SAID PASSAGEWAY COMPRISING A PLURALITY OF LONGITUDINALEXTENDING BAFFLE GRIDS ARRANGED IN TIERS, SAID TIERS WHICH ARE CONTACTED FIRST BY THE FLUID STREAM COMPRISING ONLY THE BAFFLE GRIDS, THE MIDDLE TIERS COMPRISING SUCH BAFFLE GRIDS, EACH OF WHICH BEING ENCLOSED WITHIN A SHEATH HAVING AT LEAST ONE PERFORATION THEREIN AND BEING ATTACHED THERETO, THE LAST CONTRACTED TIERS COMPRISING SUCH BAFFLE GRIDS EACH OF WHICH BEING ENCLOSED WITHIN A SOUND ABSORBENT MATERIAL-CONTAINING SHEATH AND BEING ATTACHED THERETO; AND SAID GRIDS BEING SO POSITIONED WITHIN SAID PASSAGEWAY AS TO BE SUBSTANTIALLY PERPENDICULAR TO THE FLOW OF SUCH STREAM THERETHROUGH.
Claim 2
Independent Claim
128 words
AN APPARATUS FOR SUPPRESSING SOUND CARRIED BY A HIGH VELOCITY FLUID STREAM COMPRISING (A) A PASSAGEWAY THROUGH WHICH SAID STREAM IS MOVING AND (B) A DETACHABLY REMOVABLE, SOUND DEADENING MEANS POSITIONED WITHIN SAID PASSAGEWAY COMPRISING A PLURALITY OF LONGITUDINALEXTENDING BAFFLE GRIDS ARRANGED IN TIERS, SAID TIERS WHICH ARE CONTACTED FIRST BY THE FLUID STREAM COMPRISING ONLY THE BAFFLE GRIDS, THE MIDDLE TIERS COMPRISING SUCH BAFFLE GRIDS, EACH OF WHICH BEING ENCLOSED WITHIN A SHEATH HAVING AT LEAST ONE PERFORATION THEREIN AND BEING ATTACHED THERETO, THE LAST CONTRACTED TIERS COMPRISING SUCH BAFFLE GRIDS EACH OF WHICH BEING ENCLOSED WITHIN A SOUND ABSORBENT MATERIAL-CONTAINING SHEATH AND BEING ATTACHED THERETO; AND SAID GRIDS BEING SO POSITIONED WITHIN SAID PASSAGEWAY AS TO BE SUBSTANTIALLY PERPENDICULAR TO THE FLOW OF SUCH STREAM THERETHROUGH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |