US3559760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle muffler and particle separator
Assignee: Ford Motor Co
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Filing: 1970-03-03
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Granted: 1971-02-02
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Expires: 1990-03-03
Abstract
Abstract Engine exhaust gases enter a series of chambers through succeeding partitions containing orifices of decreasing size but increasing numbers. A baffle is located in each chamber downstream of its inlet orifices to change the flow direction of the exhaust gases in such a manner that particulate matter carried by the exhaust gases drops to the bottom of the chamber. The bottom of each chamber contains a false floor having openings therein and the particulate matter drops through the openings into storage compartments.
Inventors
- 👤 Jack S Ninomiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:29
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/02; F01N1/00; F01N1/08; F01N1/083; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
134 words
An exhaust muffler for muffling the sound and removing particles from the exhaust of a combustion engine comprising: an elongated housing having an inlet for connection to said engine and an outlet communicating with the atmosphere; a plurality of partitions dividing the interior of said housing into a plurality of chambers, each partition having openings therein to permit exhaust flow between the chambers on each side of the partition, said partition being arranged to conduct exhaust gases sequentially through said chambers, the openings in said partitions becoming progressively smaller from the inlet end to the outlet end, and a baffle located in each chamber where said baffle deflects the exhaust stream entering that chamber via said openings to remove particles carried by said exhaust stream, each of said chambers removing particles of differing sizes.
Claim 2
Dependent Claim
134 words
An exhaust muffler for muffling the sound and removing particles from the exhaust of a combustion engine comprising: an elongated housing having an inlet for connection to said engine and an outlet communicating with the atmosphere; a plurality of partitions dividing the interior of said housing into a plurality of chambers, each partition having openings therein to permit exhaust flow between the chambers on each side of the partition, said partition being arranged to conduct exhaust gases sequentially through said chambers, the openings in said partitions becoming progressively smaller from the inlet end to the outlet end, and a baffle located in each chamber where said baffle deflects the exhaust stream entering that chamber via said openings to remove particles carried by said exhaust stream, each of said chambers removing particles of differing sizes.
Claim 3
Dependent Claim
37 words
The muffler of claim 1 in which the longitudinal dimension of the muffler is substantially horizontal and said partitions extend laterally across said longitudinal dimension to divide the housing interior into a pLurality of longitudinally spaced chambers.
Claim 4
Dependent Claim
44 words
The muffler of claim 2 in which the openings are grouped approximately at the vertical center of said partitions and the baffle in each chamber extends vertically upward beyond the highest inlet opening into that chamber but short of the roof of the chamber.
Claim 5
Dependent Claim
56 words
The muffler of claim 3 comprising a false floor member extending across the bottom of at least one chamber to define a storage area, said false floor member having an opening connecting the storage area with the chamber, said opening being large enough to pass the largest particles separated from the exhaust stream in that chamber.
Claim 6
Dependent Claim
35 words
The muffler of claim 4 in which said false floor extends across the bottom of each chamber to define a storage area for each chamber, each storage area being separate from each adjacent storage area.
Claim 7
Dependent Claim
28 words
The muffler of claim 5 in which at least one chamber differs in volume from another chamber to reduce the level of differing sounds of the exhaust stream.
Claim 8
Dependent Claim
56 words
The muffler of claim 1 comprising a false floor member extending across the bottom of at least one chamber to define a storage area, said false floor member having an opening connecting the storage area with the chamber, said opening being large enough to pass the largest particles separated from the exhaust stream in that chamber.
Claim 9
Dependent Claim
35 words
The muffler of claim 7 in which said false floor extends across the bottom of each chamber to define a storage area for each chamber, each storage area being separate from each adjacent storage area.
Claim 10
Dependent Claim
28 words
The muffler of claim 1 in which at least one chamber differs in volume from another chamber to reduce the level of differing sounds of the exhaust stream.
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |