Patent US3323615A successfully refreshed from Google Patents.
US3323615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable volume exhaust muffler for fluid operated tools
Assignee: Ingersoll Rand Co
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Filing: 1966-10-10
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Granted: 1967-06-06
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Expires: 1986-10-10
Abstract
No abstract record available.
Inventors
- 👤 Frederick M Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:45
CPC Classifications
B; B23; B23B; B23B45/00; B23B45/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A MUFFLER COMPRISING: A FIRST PLATE MEMBER HAVING AN INLET OPENING WHICH EXTENDS THROUGH A FACE OF SAID FIRST PLATE MEMBER AND IS ADAPTED TO BE CONNECTED TO AN EXHAUST PASSAGE FOR RECEIVING EXHAUST FLUID FROM THE EXHAUST PASSAGE; A SECOND PLATE MEMBER DISPOSED ADJACENT SAID FIRST PLATE MEMBER AND HAVING A FACE OPPOSING SAID FACE OF SAID PLATE MEMBER; SAID FACE OF SAID SECOND PLATE MEMBER INCLUDING A RECESS OPPOSITE SAID INLET OPENING IN SAID FIRST PLATE MEMBER; AND MEANS FOR MOUNTING SAID PLATE MEMBERS SUCH THAT THEY ARE RELATIVELY MOVABLE TO PROVIDE A VARIABLE VOLUME FLUID PASSAGE BETWEEN SAID OPPOSING FACES OF SAID PLATE MEMBERS.
Claim 2
Dependent Claim
107 words
A MUFFLER COMPRISING: A FIRST PLATE MEMBER HAVING AN INLET OPENING WHICH EXTENDS THROUGH A FACE OF SAID FIRST PLATE MEMBER AND IS ADAPTED TO BE CONNECTED TO AN EXHAUST PASSAGE FOR RECEIVING EXHAUST FLUID FROM THE EXHAUST PASSAGE; A SECOND PLATE MEMBER DISPOSED ADJACENT SAID FIRST PLATE MEMBER AND HAVING A FACE OPPOSING SAID FACE OF SAID PLATE MEMBER; SAID FACE OF SAID SECOND PLATE MEMBER INCLUDING A RECESS OPPOSITE SAID INLET OPENING IN SAID FIRST PLATE MEMBER; AND MEANS FOR MOUNTING SAID PLATE MEMBERS SUCH THAT THEY ARE RELATIVELY MOVABLE TO PROVIDE A VARIABLE VOLUME FLUID PASSAGE BETWEEN SAID OPPOSING FACES OF SAID PLATE MEMBERS.
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) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |