Patent US3763950A successfully refreshed from Google Patents.
US3763950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination frame and exhaust system for motor vehicles
Assignee: Individual
•
Filing: 1971-12-17
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Granted: 1973-10-09
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Expires: 1991-12-17
Abstract
Abstract A combination frame and exhaust system for motor vehicles in which the exhaust gases are led through a conduit formed as part of the frame with a relatively long distance to cool the exhaust gases and silence the noise of the motor. The conduit extends several times around the loop of the frame in order to provide sufficient length to produce the required cooling and silencing. Both water and oil may be introduced into the conduit to assist in eliminating pollutants from the system.
Inventors
- 👤 Rockwell H Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:02
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/08; B; B60; B60K; B60K13/00; B60K13/06; F01N1/00; F01N1/08; F01N3/00; F01N3/02; F01N2230/00; F01N2470/00; F01N2470/10; F01N2470/14; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
151 words
An exhaust system for use with a motor vehicle of the type including an internal combustion engine comprising: a motor vehicle frame including two longitudinal side elements and two transverse elements forming a closed loop, a plurality of contiguous conduits formed in said frame and extending around the loop and including an innermost conduit, a central conduit, and an outermost conduit, means for conducting the exhaust gases of the internal combustion engine to the conduits in said frame, means connecting said conduits for directing exhaust gases from one of said conduits to another one of said conduits forming said conduits into an exhaust path having a length greater than the length of the conduit containing portion of said frame, and a tailpipe extending from one of the conduits in said frame for discharge of the exhaust gases after having travelled around said frame through said exhaust path before reaching said tailpipe.
Claim 2
Dependent Claim
151 words
An exhaust system for use with a motor vehicle of the type including an internal combustion engine comprising: a motor vehicle frame including two longitudinal side elements and two transverse elements forming a closed loop, a plurality of contiguous conduits formed in said frame and extending around the loop and including an innermost conduit, a central conduit, and an outermost conduit, means for conducting the exhaust gases of the internal combustion engine to the conduits in said frame, means connecting said conduits for directing exhaust gases from one of said conduits to another one of said conduits forming said conduits into an exhaust path having a length greater than the length of the conduit containing portion of said frame, and a tailpipe extending from one of the conduits in said frame for discharge of the exhaust gases after having travelled around said frame through said exhaust path before reaching said tailpipe.
Claim 3
Dependent Claim
46 words
A device as claimed in claim 1 wherein the means for conducting exhaust gases from said internal combustion engine to said conduits includes a pair of exhaust pipes extending from opposite sides of said internal combustion engine and connected at their opposite ends to said frame.
Claim 4
Dependent Claim
23 words
A device as claimed in claim 1 wherein said closed loop of the frame extends completely from end to end of the frame.
Claim 5
Dependent Claim
28 words
A device as claimed in claim 1 wherein means are provided in said frame for inserting water into said conduits for assisting in cooling the exhaust gases therein.
Claim 6
Dependent Claim
25 words
A device as claimed in claim 1 wherein means are provided for feeding oil into said conduits for assisting in preventing rust in said conduits.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |