PT78422A - Non-return valve for pilsating burners - Google Patents
Non-return valve for pilsating burnersInfo
- Publication number
- PT78422A PT78422A PT7842284A PT7842284A PT78422A PT 78422 A PT78422 A PT 78422A PT 7842284 A PT7842284 A PT 7842284A PT 7842284 A PT7842284 A PT 7842284A PT 78422 A PT78422 A PT 78422A
- Authority
- PT
- Portugal
- Prior art keywords
- ring
- return valve
- pilsating
- burners
- abutments
- Prior art date
Links
Landscapes
- Taps Or Cocks (AREA)
Abstract
The non-return valve includes at least one flat, relatively thin circular ring (10) of elastically flexible material such as steel or plastics. The ring rests, in a closed position, against a valve seating with at least one air inflow opening. The seating comprises a surface of rotation concentric with the inlet opening. The outer circumferential edge (14) of the ring is located between two axially spaced annular abutments (15A,16A). These cooperate with the whole outer edge of the ring so that, when the ring is in an open position, its outer edge rests against one of the abutments while the inner edge (12) is displaced slightly so that the ring forms a shallow truncated cone.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT7842284A PT78422B (en) | 1984-04-13 | 1984-04-13 | Non-return valve for pilsating burners |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT7842284A PT78422B (en) | 1984-04-13 | 1984-04-13 | Non-return valve for pilsating burners |
Publications (2)
Publication Number | Publication Date |
---|---|
PT78422A true PT78422A (en) | 1984-05-01 |
PT78422B PT78422B (en) | 1986-03-20 |
Family
ID=20083466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT7842284A PT78422B (en) | 1984-04-13 | 1984-04-13 | Non-return valve for pilsating burners |
Country Status (1)
Country | Link |
---|---|
PT (1) | PT78422B (en) |
-
1984
- 1984-04-13 PT PT7842284A patent/PT78422B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
PT78422B (en) | 1986-03-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 19910921 |