In-line valve for fluid conduit

Patent · Tue Oct 06 04:00:00 EDT 1992

OSTI ID:7138642

O'Bryon, P J

This patent describes a method for blocking the flow of fluid through a conduit. It comprises: providing a valve body having a pair of body sections, a shaft having inner and outer ends movable within the valve body, a draw bar having inner and outer ends movably mounted within a hollow bore of the shaft and with the inner end of the draw bar extending behind the inner end of the shaft and having a cuter rigidly mounted on the inner end thereof being in a sliding nonrotational relationship with the inner end of the shaft, and having a relationship with the inner end of the shaft, and having a flexible sealing sleeve with first and second ends mounted between the cuter and an intermediate portion of the shaft; clamping the body sections about a section of conduit; providing means for securing the shaft and draw bar together; advancing the shaft and draw bar assembly in unison into the valve body and cutting opposed holes in the conduit and advancing the sleeve into the holes; unsecuring the shaft from the draw bar after the cutter has reached the stop position to permit independent movement therebetween; and retracting the draw bar within the bore of the shaft.

• Assignee: NOV; NOV-93-003076; EDB-93-015198
• Patent Number(s): A; US 5152310
• Application Number: PPN: US 7-843209
• OSTI ID: 7138642
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
022000 -- Petroleum-- Transport
Handling
& Storage
42 ENGINEERING
420205* -- Engineering-- Transport & Storage Facilities-- (1980-)
420400 -- Engineering-- Heat Transfer & Fluid Flow
CONTROL EQUIPMENT
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
MACHINE PARTS
PIPELINES
SHAFTS
VALVES