US3750841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muffling device for gas discharge
Assignee: Individual
•
Filing: 1972-10-30
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Granted: 1973-08-07
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Expires: 1992-10-30
Abstract
Abstract Gas discharge muffling device having generally cylindrical body with closed ends, inlet pipe directing gas tangentially into body and outlet pipe exhausting gas from device. Baffle plate divides body into inlet and outlet chambers which communicate with inlet and outlet pipes respectively, conduit connecting inlet and outlet chambers. Splitter plate in inlet chamber restricts rotation of gas in inlet chamber induced by tangential entry of gas. Splitter plate is essentially flat sheet disposed in diametrical plane of cylindrical body and parallel to direction of gas entry.
Inventors
- 👤 G Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:29
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/06; F01N1/00; F01N1/08; F01N1/086; F01N1/087
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
208 words
A muffling device to reduce noise of a gas discharge, the device having a body including a generally cylindrical side wall having closed ends and a central longitudinal axis, the side wall and ends defining an interior; the device further including an inlet pipe adapted to receive the gas discharge, and to direct gas into the device tangentially relative to the side wall to induce rotation into the gas, an outlet pipe to exhaust the gas from the device, a baffle plate extending between the cylindrical side wall dividing the interior of the device into inlet and outlet chambers which communicate with inlet and outlet pipes respectively, a conduit connecting the inlet and outlet chambers; the device further including: a. a splitter plate provided in the inlet chamber, the plate having outer and inner edges, the outer edge being disposed adjacent a closed end of the inlet portion, the inner edge extending into the inlet chamber, so that rotation of gas in the inlet chamber induced by the tangential entry of gas is essentially restricted by the splitter plate, the gas leaving the inlet chamber through the conduit in an essentially axial flow to pass into the outlet chamber from where the gas exhausts through the outlet pipe.
Claim 2
Dependent Claim
208 words
A muffling device to reduce noise of a gas discharge, the device having a body including a generally cylindrical side wall having closed ends and a central longitudinal axis, the side wall and ends defining an interior; the device further including an inlet pipe adapted to receive the gas discharge, and to direct gas into the device tangentially relative to the side wall to induce rotation into the gas, an outlet pipe to exhaust the gas from the device, a baffle plate extending between the cylindrical side wall dividing the interior of the device into inlet and outlet chambers which communicate with inlet and outlet pipes respectively, a conduit connecting the inlet and outlet chambers; the device further including: a. a splitter plate provided in the inlet chamber, the plate having outer and inner edges, the outer edge being disposed adjacent a closed end of the inlet portion, the inner edge extending into the inlet chamber, so that rotation of gas in the inlet chamber induced by the tangential entry of gas is essentially restricted by the splitter plate, the gas leaving the inlet chamber through the conduit in an essentially axial flow to pass into the outlet chamber from where the gas exhausts through the outlet pipe.
Claim 3
Dependent Claim
28 words
A muffling device as defined in claim 1 in which b. the splitter plate is an essentially flat sheet disposed within a plane parallel to the longitudinal axis.
Claim 4
Dependent Claim
38 words
A muffling device as defined in claim 2 in which c. the splitter plate is disposed in a diametrical plane of the cylindrical side wall and parallel to a direction of entry of gases into the inlet chamber.
Claim 5
Dependent Claim
54 words
A muffling device as defined in claim 1 in which d. the inner edge of the splitter plate is spaced from a portion of the inlet pipe closest to the closed end of the inlet chamber so as to reduce chances of an edge tone being produced by gas passing over the inner edge.
Claim 6
Dependent Claim
48 words
A muffling device as defined in claim 1 in which the conduit includes: e. an opening in the baffle plate, f. a tube having an inlet end extending from the baffle plate into the inlet chamber, and an outlet end communicating with the opening in the baffle plate.
Claim 7
Dependent Claim
49 words
A muffling device as defined in claim 5 in which g. the opening of the baffle plate has an annular flange so as to reduce coefficient of resistance of gas flow through the opening, to reduce chances of generating an edge tone and to increase stiffness of the plate.
Claim 8
Dependent Claim
21 words
A muffling device as defined in claim 5 in which h. the outlet end of the tube has a flared portion.
Claim 9
Dependent Claim
38 words
A muffling device as defined in claim 7 in which i. the flared portion of the outlet end of the tube has a diameter substantially equal to an internal diameter of the cylindrical side wall of the device.
Claim 10
Dependent Claim
23 words
A muffling device as definEd in claim 8 in which j. the flared portion of the tube is secured to the baffle plate.
Claim 11
Dependent Claim
24 words
A muffling device as defined in claim 1 in which k. the inlet pipe extends tangentially from the side wall of the inlet chamber.
References Cited (Backward Citations)
US2936844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |