HK1054663A2 - Backflow-preventive liquid supply pipe - Google Patents

Backflow-preventive liquid supply pipe

Info

Publication number
HK1054663A2
HK1054663A2 HK03102794A HK03102794A HK1054663A2 HK 1054663 A2 HK1054663 A2 HK 1054663A2 HK 03102794 A HK03102794 A HK 03102794A HK 03102794 A HK03102794 A HK 03102794A HK 1054663 A2 HK1054663 A2 HK 1054663A2
Authority
HK
Hong Kong
Prior art keywords
backflow
supply pipe
liquid supply
preventive liquid
preventive
Prior art date
Application number
HK03102794A
Inventor
Hang Tat Kwok
Original Assignee
Hang Tat Kwok
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 Hang Tat Kwok filed Critical Hang Tat Kwok
Priority to HK03102794A priority Critical patent/HK1054663A2/en
Priority to CNA2003101003329A priority patent/CN1538120A/en
Publication of HK1054663A2 publication Critical patent/HK1054663A2/en
Priority to GB0407850A priority patent/GB2400637B/en
Priority to CNB2004100327683A priority patent/CN1308631C/en
Priority to HK04108699A priority patent/HK1065842A1/en
Priority to HK05101339A priority patent/HK1069202A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/12—Arrangements for connecting heaters to circulation pipes
    • F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
    • F24H9/133—Storage heaters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Jet Pumps And Other Pumps (AREA)
HK03102794A 2003-04-17 2003-04-17 Backflow-preventive liquid supply pipe HK1054663A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
HK03102794A HK1054663A2 (en) 2003-04-17 2003-04-17 Backflow-preventive liquid supply pipe
CNA2003101003329A CN1538120A (en) 2003-04-17 2003-10-14 Liquid supply pipe capable of preventing backflow
GB0407850A GB2400637B (en) 2003-04-17 2004-04-07 Liquid supply pipe
CNB2004100327683A CN1308631C (en) 2003-04-17 2004-04-16 Liquid supply pipe capable of preventing backflow
HK04108699A HK1065842A1 (en) 2003-04-17 2004-11-05 Liquid supply pipe
HK05101339A HK1069202A1 (en) 2003-04-17 2005-02-17 Backflow-preventive liquid supply pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HK03102794A HK1054663A2 (en) 2003-04-17 2003-04-17 Backflow-preventive liquid supply pipe

Publications (1)

Publication Number Publication Date
HK1054663A2 true HK1054663A2 (en) 2003-11-21

Family

ID=30130382

Family Applications (1)

Application Number Title Priority Date Filing Date
HK03102794A HK1054663A2 (en) 2003-04-17 2003-04-17 Backflow-preventive liquid supply pipe

Country Status (2)

Country Link
CN (2) CN1538120A (en)
HK (1) HK1054663A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HK1054663A2 (en) * 2003-04-17 2003-11-21 Hang Tat Kwok Backflow-preventive liquid supply pipe

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1094152A (en) * 1993-01-10 1994-10-26 郭振华 Electric heater
JP3549170B2 (en) * 1995-04-21 2004-08-04 松下電器産業株式会社 Electric water heater
CN2294460Y (en) * 1997-04-22 1998-10-14 国家建筑材料工业局苏州混凝土水泥制品研究院 Device for measuring volume of additional supply from external source
GB2333145A (en) * 1998-01-13 1999-07-14 Imi Waterheating Ltd Storage waterheater with cold water overflow
HK1054663A2 (en) * 2003-04-17 2003-11-21 Hang Tat Kwok Backflow-preventive liquid supply pipe

Also Published As

Publication number Publication date
CN1308631C (en) 2007-04-04
CN1538120A (en) 2004-10-20
CN1550730A (en) 2004-12-01

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Legal Events

Date Code Title Description
PF Patent in force
PEU Short-term patents expired

Effective date: 20110416