Patent US3263770A successfully refreshed from Google Patents.
US3263770A
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Noise deadening means for percussive tools
Assignee: Atlas Copco AB
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Filing: 1965-10-13
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Granted: 1966-08-02
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Expires: 1985-10-13
Abstract
No abstract record available.
Inventors
- 👤 Alm Karl Staffan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:23
CPC Classifications
B; B25; B25D; B25D17/00; B25D17/11; B25D17/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
NOISE DEADENING MEANS FOR PERCUSSIVE MACHINES INCLUDING A MACHINE HOUSING, A TOOL INSERTABLE WITH ONE END THEREOF INTO SAID MACHINE HOUSING, A PRESSURE FLUID DRIVEN HAMMER PISTON RECIPROCABLY MOUNTED IN SAID MACHINE HOUSING FOR DELIVERING BLOWS TO SAID ONE END OF SAID TOOL, MEANS FOR DELIVERING PRESSURE FLUID TO SAID MACHINE HOUSING IN A MANNER TO RECIPROCATE SAID HAMMER PISTON IN SAID MACHINE HOUSING, AND OUTLET MEANS ON SAID MACHINE HOUSING FOR DISCHARGING SAID PRESSURE FLUID THEREFROM, SAID NOISE DEADENING MEANS COMPRISING AN EXHAUST NOISE MUFFLING CASING CONNECTED TO SAID OUTLET MEANS FOR RECEIVING PRESSURE FLUID DISCHARGED THEREFROM, THE WALLS OF SAID CASING BEING FORMED BY LAMINATED SHEET MATERIAL HAVING AN OUTER AND AN INNER METALLIC SHEET AT OPPOSITE SIDES OF AN INTERMEDIATE LAYER OF VIBRATION DAMPING MATERIAL, AND EXHAUST OPENINGS CONNECTING THE INTERIOR OF SAID CASING TO THE ATMOSPHERE.
Claim 2
Dependent Claim
140 words
NOISE DEADENING MEANS FOR PERCUSSIVE MACHINES INCLUDING A MACHINE HOUSING, A TOOL INSERTABLE WITH ONE END THEREOF INTO SAID MACHINE HOUSING, A PRESSURE FLUID DRIVEN HAMMER PISTON RECIPROCABLY MOUNTED IN SAID MACHINE HOUSING FOR DELIVERING BLOWS TO SAID ONE END OF SAID TOOL, MEANS FOR DELIVERING PRESSURE FLUID TO SAID MACHINE HOUSING IN A MANNER TO RECIPROCATE SAID HAMMER PISTON IN SAID MACHINE HOUSING, AND OUTLET MEANS ON SAID MACHINE HOUSING FOR DISCHARGING SAID PRESSURE FLUID THEREFROM, SAID NOISE DEADENING MEANS COMPRISING AN EXHAUST NOISE MUFFLING CASING CONNECTED TO SAID OUTLET MEANS FOR RECEIVING PRESSURE FLUID DISCHARGED THEREFROM, THE WALLS OF SAID CASING BEING FORMED BY LAMINATED SHEET MATERIAL HAVING AN OUTER AND AN INNER METALLIC SHEET AT OPPOSITE SIDES OF AN INTERMEDIATE LAYER OF VIBRATION DAMPING MATERIAL, AND EXHAUST OPENINGS CONNECTING THE INTERIOR OF SAID CASING TO THE ATMOSPHERE.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |