Patent US3709239A successfully refreshed from Google Patents.
US3709239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety blowout
Assignee: Selas Corp of America
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Filing: 1971-01-04
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Granted: 1973-01-09
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Expires: 1991-01-04
Abstract
Abstract The invention is a safety blowout for use in combustion systems that is provided with a rupture disc which will break at a predetermined pressure. The disc is so made that when it ruptures, portions thereof will tear and bend outwardly without any flying particles.
Inventors
- 👤 C Morck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:20
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/14; F16K17/16; F16K17/162; Y; Y10; Y10S; Y10S137/00; Y10S137/91; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1692; Y10T137/1714; Y10T137/1729; Y10T137/1744
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
168 words
In a safety blowout, the combination of a pipe having an inlet and an outlet at an angle to each other through which an explosive fluid is to flow, a sleeve extending inwardly from said outlet, said pipe having an opening between said inlet and outlet axially aligned with said sleeve, a pressure destructable closure for said opening including a thin metallic disc, said disc being provided with a plurality of radially extending slits, the inner ends of said slits terminating short of the center of said disc, the outer ends of said slits terminating in openings adjacent to the edge of said disc and an opening at the center of said disc concentric with but not connected to the inner ends of said slits, a sealing disc of a frangible material, and means to hold said metal disc and said frangible disc face to face across said opening, said last mentioned means engaging said discs at their edges radially outward of the outer ends of said slits.
Claim 2
Dependent Claim
168 words
In a safety blowout, the combination of a pipe having an inlet and an outlet at an angle to each other through which an explosive fluid is to flow, a sleeve extending inwardly from said outlet, said pipe having an opening between said inlet and outlet axially aligned with said sleeve, a pressure destructable closure for said opening including a thin metallic disc, said disc being provided with a plurality of radially extending slits, the inner ends of said slits terminating short of the center of said disc, the outer ends of said slits terminating in openings adjacent to the edge of said disc and an opening at the center of said disc concentric with but not connected to the inner ends of said slits, a sealing disc of a frangible material, and means to hold said metal disc and said frangible disc face to face across said opening, said last mentioned means engaging said discs at their edges radially outward of the outer ends of said slits.
Claim 3
Dependent Claim
21 words
The combination of claim 1 including a pressure sensitive device communicating with the interior of said pipe between the ends thereof.
Claim 4
Dependent Claim
50 words
The combination of claim 1 in which there is provided a reinforcing ring for said metallic disc, said ring being of a diameter so that its inner edge falls radially outward of the openings at the outer ends of said slits, and means fastening said ring to said metallic disc.
Claim 5
Dependent Claim
26 words
The combination of claim 3 in which said ring is fastened to said metallic disc at points substantially midway between the outer ends of said slits.
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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |