Downhole well fishing assembly

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4548437
SERIAL NO

06620625

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A fishing tool comprising a body member having an offset entrance port into a cylindrical cavity that contains a slide member having a trough-shaped lower portion positionable adjacent the entrance port in either of two diametrically opposed angular positions to alternatively capture or release an enlargement on a rod inserted into the body member cavity via the entrance port. Grooves are cut into the slide member and a pin is mounted on the body member to rotate the slide member one half turn when the slide member is reciprocated in the cavity. The rod can be a portion of a collet in a barrel attached to the body member, the bore of the barrel and the collet having mating frustoconical surfaces for collapsing the collet fingers about a uniform diameter rod when the rod portion of the collet is released from the body member and slide member.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • LARSON SUPPLY COMPANY

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Driskill, Darrel Ardmore, OK 1 7

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation