AU1275199A - Backflow prevention valve - Google Patents

Backflow prevention valve

Info

Publication number
AU1275199A
AU1275199A AU12751/99A AU1275199A AU1275199A AU 1275199 A AU1275199 A AU 1275199A AU 12751/99 A AU12751/99 A AU 12751/99A AU 1275199 A AU1275199 A AU 1275199A AU 1275199 A AU1275199 A AU 1275199A
Authority
AU
Australia
Prior art keywords
backflow prevention
prevention valve
valve
backflow
prevention
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU12751/99A
Inventor
David Mccalvin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Camco International Inc
Original Assignee
Camco International Inc
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 Camco International Inc filed Critical Camco International Inc
Publication of AU1275199A publication Critical patent/AU1275199A/en
Abandoned legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/05—Flapper valves

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Safety Valves (AREA)
AU12751/99A 1997-10-31 1998-10-22 Backflow prevention valve Abandoned AU1275199A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US6395897P 1997-10-31 1997-10-31
US60063958 1997-10-31
PCT/US1998/022469 WO1999023352A1 (en) 1997-10-31 1998-10-22 Backflow prevention valve

Publications (1)

Publication Number Publication Date
AU1275199A true AU1275199A (en) 1999-05-24

Family

ID=22052605

Family Applications (1)

Application Number Title Priority Date Filing Date
AU12751/99A Abandoned AU1275199A (en) 1997-10-31 1998-10-22 Backflow prevention valve

Country Status (2)

Country Link
AU (1) AU1275199A (en)
WO (1) WO1999023352A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4362214A (en) * 1981-01-19 1982-12-07 Camco, Incorporated Tubing retrievable variable setting differential pressure actuated well safety valve
US4722399A (en) * 1987-03-12 1988-02-02 Camco, Incorporated Self closing equalizing valve for a subsurface well safety valve
US5029646A (en) * 1990-07-11 1991-07-09 Camco International Inc. Orifice well safety valve with release mechanism
US5095994A (en) * 1990-11-08 1992-03-17 Otis Engineering Corportion Flow actuated safety valve with retrievable choke and metal seals
US5125457A (en) * 1991-06-11 1992-06-30 Otis Engineering Corporation Resilient seal for curved flapper valve

Also Published As

Publication number Publication date
WO1999023352A1 (en) 1999-05-14

Similar Documents

Publication Publication Date Title
AU2003399A (en) Dual backflow check valve
EP0934757A3 (en) Check valve
AU9360698A (en) Downhole valve
GB2331796B (en) Valve
ZA986543B (en) Valve
AU2179497A (en) Water-hammerless check valve
AU6412998A (en) Valve
AUPP085497A0 (en) Valve assembly
GB9716624D0 (en) Valve
AU5555098A (en) Nonreturn valve
GB9704489D0 (en) Valve
HUP9800383A1 (en) Valve
GB9725844D0 (en) Valve
AU1275199A (en) Backflow prevention valve
GB9709227D0 (en) Valve
AU9560498A (en) Valve
KR100218744B1 (en) Valve
AU2703799A (en) Slide valve
AU2303799A (en) Valve
GB9701688D0 (en) Valve
GB9716953D0 (en) Veresk valve
AU2303899A (en) Valve
GB9701184D0 (en) Valve
AUPP056397A0 (en) Valve
AUPO990997A0 (en) Valve

Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase