PT78422A - Non-return valve for pilsating burners - Google Patents

Non-return valve for pilsating burners

Info

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
Application number
PT7842284A
Other languages
Portuguese (pt)
Other versions
PT78422B (en
Original Assignee
Mareck Bv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mareck Bv filed Critical Mareck Bv
Priority to PT7842284A priority Critical patent/PT78422B/en
Publication of PT78422A publication Critical patent/PT78422A/en
Publication of PT78422B publication Critical patent/PT78422B/en

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.
PT7842284A 1984-04-13 1984-04-13 Non-return valve for pilsating burners PT78422B (en)

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)

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