US4308930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muffler for a vehicle
Assignee: Komatsu Ltd
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Filing: 1979-10-24
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Granted: 1982-01-05
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Expires: 1999-10-24
Abstract
Abstract A muffler for a vehicle mounted on a hood of an engine compartment, comprising an outer cylindrical member having a plurality of openings formed in the lower side wall thereof, an inner cylindrical member mounted on the bottom wall of the outer cylindrical member, the inner cylindrical member being connected to an exhaust pipe and reduced in diameter at the upper side wall thereof, and an extension pipe connected to the upper end of the outer cylindrical member wherein the outer cylindrical member is mounted on the hood in such a manner that the approximately lower half thereof is positioned under the hood.
Inventors
- 👤 Akio Iida
- 👤 Kimio Miyake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:04
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1805; B; B60; B60K; B60K13/00; B60K13/04; F01N13/08; F01N13/082
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
A muffler for a vehicle mounted on a hood of an engine compartment, comprising; an outer cylindrical member having a plurality of openings formed in the lower side wall thereof, said outer cylindrical member being formed in a conical shape at the upper side wall thereof and having a bottom wall in which a lower opening is formed, said outer cylindrical member comprising an upper cylindrical section and a lower cylindrical section each having a mounting flange fixedly secured to the lower end or upper end thereof, respectively; an inner cylindrical member mounted on the bottom wall of said outer cylindrical member, said inner cylindrical member being connected at the bottom thereof to an exhaust pipe and reduced in diameter at the upper side wall thereof; and mounting means for resiliently mounting said outer cylindrical member on said hood in such a manner that approximately lower half of said outer cylindrical member is positioned under said hood.
Claim 2
Dependent Claim
157 words
A muffler for a vehicle mounted on a hood of an engine compartment, comprising; an outer cylindrical member having a plurality of openings formed in the lower side wall thereof, said outer cylindrical member being formed in a conical shape at the upper side wall thereof and having a bottom wall in which a lower opening is formed, said outer cylindrical member comprising an upper cylindrical section and a lower cylindrical section each having a mounting flange fixedly secured to the lower end or upper end thereof, respectively; an inner cylindrical member mounted on the bottom wall of said outer cylindrical member, said inner cylindrical member being connected at the bottom thereof to an exhaust pipe and reduced in diameter at the upper side wall thereof; and mounting means for resiliently mounting said outer cylindrical member on said hood in such a manner that approximately lower half of said outer cylindrical member is positioned under said hood.
Claim 3
Dependent Claim
26 words
A muffler for a vehicle as set forth in claim 1 further comprising an extension pipe connected to the top end of said outer cylindrical member.
Claim 4
Dependent Claim
29 words
A muffler for a vehicle as set forth in claim 1 further comprising an annular sealing means disposed between the flange of said lower cylindrical section and said hood.
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) | 1985-01-04 | 1985-07-06 | 1986-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-04 | 1989-07-06 | 1990-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-04 | 1993-07-06 | 1994-01-05 | $7700.00 | Window Closed / Lapsed |