Patent US3685534A successfully refreshed from Google Patents.
US3685534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vent seals
Assignee: Combustion Unlimited Inc
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Filing: 1971-04-09
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Granted: 1972-08-22
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Expires: 1991-04-09
Abstract
Abstract A vent seal is provided which includes an outer cylindrical housing having an inlet and an outlet pipe, a plurality of inner baffle plates within the housing forming a seal, and an optional upper outlet baffle in the outlet pipe.
Inventors
- 👤 John F Straitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:25
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/72; F23D14/82; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
256 words
A vent seal which comprises an outer vertical cylindrical housing having upper and lower end closures, an inlet pipe connected to the lower end closure and communicating with the interior of the housing, an outlet pipe connected to the upper end closure and communicating with the interior of the housing, and means in said housing providing a gravimetric seal resistant to flow reversal within said housing, said means including an inclined inlet baffle plate extending inwardly from said lower end closure and from one side of said inlet pipe, and across said housing and being connected thereto, a first vertical baffle plate extending upwardly from said inlet baffle plate and terminating in spaced relation to said upper end closure and extending across said housing and being connected thereto, said inlet baffle plate, first baffle plate and said housing providing an upward flow passageway connected to said inlet pipe, an inclined outlet baffle plate extending downwardly from said upper end closure and from one side of said outlet pipe and across said housing and being connected thereto, and a second vertical baffle plate extending downwardly from said outlet baffle plate in spaced relation to said first baffle plate and terminating in spaced relation to the lower end closure and extending across said housing and being connected thereto, said first and second baffle plates providing a downward flow passageway with sharp turns at its entrance and exit, said outlet baffle plate, second vertical baffle plate and said housing providing an upward flow passageway connected to said outlet pipe.
Claim 2
Dependent Claim
256 words
A vent seal which comprises an outer vertical cylindrical housing having upper and lower end closures, an inlet pipe connected to the lower end closure and communicating with the interior of the housing, an outlet pipe connected to the upper end closure and communicating with the interior of the housing, and means in said housing providing a gravimetric seal resistant to flow reversal within said housing, said means including an inclined inlet baffle plate extending inwardly from said lower end closure and from one side of said inlet pipe, and across said housing and being connected thereto, a first vertical baffle plate extending upwardly from said inlet baffle plate and terminating in spaced relation to said upper end closure and extending across said housing and being connected thereto, said inlet baffle plate, first baffle plate and said housing providing an upward flow passageway connected to said inlet pipe, an inclined outlet baffle plate extending downwardly from said upper end closure and from one side of said outlet pipe and across said housing and being connected thereto, and a second vertical baffle plate extending downwardly from said outlet baffle plate in spaced relation to said first baffle plate and terminating in spaced relation to the lower end closure and extending across said housing and being connected thereto, said first and second baffle plates providing a downward flow passageway with sharp turns at its entrance and exit, said outlet baffle plate, second vertical baffle plate and said housing providing an upward flow passageway connected to said outlet pipe.
Claim 3
Dependent Claim
34 words
A vent seal as defined in claim 1 in which said upper end closure and said baffle are disposed to direct a portion of the gas flow transversely with respect to said outlet pipe.
Claim 4
Dependent Claim
21 words
A vent seal as defined in claim 1 in which an additional seal baffle plate is provided in said outlet pipe.
Claim 5
Dependent Claim
25 words
A vent seal as defined in claim 3 in which said additional seal baffle plate is frusto-conical with a central opening and is converging upwardly.
Claim 6
Dependent Claim
31 words
A vent seal as defined in claim 1 in which said housing at the lower portion thereof and below said second vertical baffle plate is provided with a liquid collecting space.
Claim 7
Dependent Claim
19 words
A vent seal as defined in claim 5 in which a discharge pipe is provided connected to said space.
Claim 8
Dependent Claim
28 words
A vent seal as defined in claim 5 in which said inlet baffle plate has a liquid collector plate carried thereby for delivery of liquid into said space.
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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |