EP 0143236 B1 19881102 - PUMP RODS
Title (en)
PUMP RODS
Publication
Application
Priority
DE 3335607 A 19830930
Abstract (en)
[origin: US4592421A] The sucker rod system in a deep well sucker rod pump consists of a plurality of unidirectionally reinforced composite fiber rods extending substantially parallel but not in contact with each other, the cross-sectional area of which rods is less than 1 cm2. This enables the advantageous material properties to be utilized to a high degree. The sucker rod system can be assembled on site. The individual composite fiber rods can be monitored when they are in the working position.
IPC 1-7
IPC 8 full level
G01N 21/84 (2006.01); E21B 17/00 (2006.01); E21B 17/16 (2006.01); F04B 47/02 (2006.01); G01N 27/04 (2006.01)
CPC (source: EP US)
E21B 17/00 (2013.01 - EP US); F04B 47/026 (2013.01 - EP US); Y10T 74/20456 (2015.01 - EP US); Y10T 403/5781 (2015.01 - EP US)
Designated contracting state (EPC)
AT DE FR GB NL
DOCDB simple family (publication)
US 4592421 A 19860603; AT E38414 T1 19881115; AU 3346984 A 19860410; AU 568573 B2 19880107; BR 8404869 A 19850813; CA 1230010 A 19871208; DE 3335607 A1 19850411; DE 3474984 D1 19881208; EG 16296 A 19861230; EP 0143236 A2 19850605; EP 0143236 A3 19861029; EP 0143236 B1 19881102; IN 161160 B 19871010; JP S6095195 A 19850528; NO 160020 B 19881121; NO 160020 C 19890301; NO 843695 L 19850401; RO 91066 A 19870227; RO 91066 B 19870228
DOCDB simple family (application)
US 64901784 A 19840910; AT 84111093 T 19840918; AU 3346984 A 19840924; BR 8404869 A 19840927; CA 464253 A 19840928; DE 3335607 A 19830930; DE 3474984 T 19840918; EG 60284 A 19840929; EP 84111093 A 19840918; IN 688DE1984 A 19840830; JP 20217184 A 19840928; NO 843695 A 19840917; RO 11579084 A 19840924