Patent US4015954A successfully refreshed from Google Patents.
US4015954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminar flow flame arrestor
Assignee: KGI Inc
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Filing: 1975-12-29
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Granted: 1977-04-05
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Expires: 1995-12-29
Abstract
Abstract A flame arrester having a rectangular housing of internal width W, length L and heighth H filled with a plurality of contiguous convoluted planar laminae. Each lamina is comprised of a thin sheet of metal formed with a plurality of spaced parallel shallow channels of selected depth D. As the laminae are placed in the housing in parallel contiguous contact to fill the cross-section of the housing, there will be a great plurality of narrow slots of width D through which the gas will pass to the flame area. Means may be provided in the form of shallow protrusions of heighth D pressed into the metal in the flat areas of the sheet in order to insure that the spacing between sheets at all points is close to the value D.
Inventors
- 👤 Robert D. Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:26
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/72; F23D14/82; A; A62; A62C; A62C4/00; A62C4/02; Y; Y10; Y10S; Y10S55/00; Y10S55/20
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
145 words
A flame arrestor for use in passage-ways for combustible oxidant/fuel mixtures compriseing: a. a housing of rectangular cross-section of selected values of internal cross-sectional width W and length L, and having a selected height H parallel to the direction of flow of said mixtures; b. a plurality of substantially identical planar laminae stacked in parallel continguous contact within said housing along the entire internal length L of said housing; c. each lamina having a width W and height H and formed with a plurality of spaced-apart, parallel, shallow, rectangular channels, parallel to and extending the length of said height dimension H, said channels of selected depth D and width C, said laminae being so stacked as to form a plurality of substantially equal sized narrows slots for gas flow, said slots of width D and length C for a distance H in the flow direction.
Claim 2
Dependent Claim
145 words
A flame arrestor for use in passage-ways for combustible oxidant/fuel mixtures compriseing: a. a housing of rectangular cross-section of selected values of internal cross-sectional width W and length L, and having a selected height H parallel to the direction of flow of said mixtures; b. a plurality of substantially identical planar laminae stacked in parallel continguous contact within said housing along the entire internal length L of said housing; c. each lamina having a width W and height H and formed with a plurality of spaced-apart, parallel, shallow, rectangular channels, parallel to and extending the length of said height dimension H, said channels of selected depth D and width C, said laminae being so stacked as to form a plurality of substantially equal sized narrows slots for gas flow, said slots of width D and length C for a distance H in the flow direction.
Claim 3
Dependent Claim
16 words
The flame arrester as in claim 1 in which said dimension D is substantially 3/64 inch.
Claim 4
Dependent Claim
21 words
The flame arrester as in claim 1 in which said dimension C is in the range of 1/4 to 2 inches.
Claim 5
Dependent Claim
19 words
The flame arrestor as in claim 1 including spacers in the said channels of said lamina of dimension D.
Claim 6
Dependent Claim
20 words
The flame arrester as in claim 4 in which said spacers comprise protrusions formed in the sheet of said lamina.
Claim 7
Dependent Claim
21 words
The flame arrester as in claim 4 including at least two spacers in each channel at different distances from each end.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |