KR930021905U - 환풍기의 역풍 방지장치 - Google Patents

환풍기의 역풍 방지장치

Info

Publication number
KR930021905U
KR930021905U KR2019920003961U KR920003961U KR930021905U KR 930021905 U KR930021905 U KR 930021905U KR 2019920003961 U KR2019920003961 U KR 2019920003961U KR 920003961 U KR920003961 U KR 920003961U KR 930021905 U KR930021905 U KR 930021905U
Authority
KR
South Korea
Prior art keywords
ventilator
prevention device
ventilation prevention
ventilation
prevention
Prior art date
Application number
KR2019920003961U
Other languages
English (en)
Other versions
KR950001699Y1 (ko
Inventor
박정의
Original Assignee
포항종합제철 주식회사
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 포항종합제철 주식회사 filed Critical 포항종합제철 주식회사
Priority to KR92003961U priority Critical patent/KR950001699Y1/ko
Publication of KR930021905U publication Critical patent/KR930021905U/ko
Application granted granted Critical
Publication of KR950001699Y1 publication Critical patent/KR950001699Y1/ko

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
KR92003961U 1992-03-12 1992-03-12 환풍기의 역풍 방지장치 KR950001699Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR92003961U KR950001699Y1 (ko) 1992-03-12 1992-03-12 환풍기의 역풍 방지장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR92003961U KR950001699Y1 (ko) 1992-03-12 1992-03-12 환풍기의 역풍 방지장치

Publications (2)

Publication Number Publication Date
KR930021905U true KR930021905U (ko) 1993-10-16
KR950001699Y1 KR950001699Y1 (ko) 1995-03-11

Family

ID=19330233

Family Applications (1)

Application Number Title Priority Date Filing Date
KR92003961U KR950001699Y1 (ko) 1992-03-12 1992-03-12 환풍기의 역풍 방지장치

Country Status (1)

Country Link
KR (1) KR950001699Y1 (ko)

Also Published As

Publication number Publication date
KR950001699Y1 (ko) 1995-03-11

Similar Documents

Publication Publication Date Title
DE69414866D1 (de) Vereinfachte herunterfallende beatmungsmaske
DE69230637D1 (de) Beatmungsgerät
DE69430693D1 (de) Medizinisches Beatmungsgerät
FI101744B1 (fi) Keittiötuuletin
DE69309180D1 (de) Lüfter
DE4390328T1 (de) Atemschutzmaske
DE69315619D1 (de) Flammensperrendes und dunstabsorbierendes System
DK0612369T3 (da) Ventilationsindretning
ITMI932580A0 (it) Dispositivo di aerazione
DE59205250D1 (de) Belüftungsvorrichtung
NO932836D0 (no) Ventilasjonsdeksel
FI932721A0 (fi) Ventilationssystem foer en roterande ugns utloppsgaser
DE59303787D1 (de) Lüftungsgitter
KR930021905U (ko) 환풍기의 역풍 방지장치
DE69303566D1 (de) Lüftungseinrichtung
DE69404023D1 (de) Entlüftungsvorrichtung
KR960023433U (ko) 소형환풍기의 역풍방지장치
DE69207926D1 (de) Lüftungsvorrichtung
KR940013110U (ko) 덕트용 환기장치
KR930023817U (ko) 실내통풍장치
FI59U1 (fi) Anordning foer ventilation av utrymmet under en byggnads yttertak
ATA214891A (de) Lüftungssystem
KR940027004U (ko) 출입문의 공기유통 차단장치
FI920794A0 (fi) Ilmastointilaite
ATA37692A (de) Lüftungskanal

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20000303

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee