05533571 is referenced by 116 patents and cites 18 patents.

A surface switchable down-jet/side-jet apparatus. The apparatus comprises a housing with a valve sleeve slidably disposed therein. When the valve sleeve is in a first position, fluid pumped into the apparatus will be jetted out of at least one longitudinally directed port. An actuator, such as a ball, is dropped into the apparatus to seat on the valve sleeve, and when pressure is applied thereto, forces the valve sleeve downwardly, shearing a shear pin. The valve sleeve is moved downwardly to a second position in which at least one transverse port in the housing is uncovered and the longitudinal port is closed. Additional fluid pumped into the apparatus is jetted radially outwardly through the transverse port.

Title
Surface switchable down-jet/side-jet apparatus
Application Number
8/250412
Publication Number
5533571
Application Date
May 27, 1994
Publication Date
July 9, 1996
Inventor
Ken B Kabinoff
Bakersfield
CA, US
Kenneth D Brune
Odessa
TX, US
Jim B Surjaatmadja
Duncan
OK, US
Agent
Neal R Kennedy
Stephen R Christian
Assignee
Halliburton Company
OK, US
IPC
E21B 34/14
E21B 21/00
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