Patent · US Active

Non threaded drill pipe connection

US8474879B2 · kind B2 · utility

6Cited by
16References
12Claims
0Family size

Inventor

Key dates

Filing dateAug 3, 2011
Grant dateJul 2, 2013
Priority date—
Expiry dateAug 3, 2031

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16L37/088
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A threadless connection for coupling segments of pipe longitudinally end to end includes a pin end having a groove for receiving therein a locking ring. A box end has a groove for receiving the locking ring therein when the pin end is inserted into the box end. The locking ring has an uncompressed diameter selected to exert lateral force on the groove in the box end when assembled to the pin end.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.