Assembly means for standardized mechanical joint for pipeline appurtenances

Patent · Tue Jan 20 04:00:00 EST 1987

OSTI ID:6902312

Kennedy, H Jr

This patent describes an improvement in the standardized mechanical joint connection for use on waterworks or gas pipeline appurtenances wherein the shape or dimensions of the body of the appurtenances preclude the insertion and tightening of the standardized T-bolts. The improvement comprises: a. a screw having an externally threaded cylindrical portion, an hexagonally shaped head on one end of the externally threaded cylindrical portion. The hexagonally shaped head has the same dimensions across flats as the standardized nuts. The externally threaded cylindrical portion has length of such dimension that engagement of the externally threaded cylindrical portion with the internal threads of nut means is provided when a gland, gasket, socket, and spigot are contiguous prior to compression of the gasket, and interference with the externally threaded cylindrical portion is prevented when the screw is tightened and the gasket is compressed, and b. the nut means having an internally threaded elongated shape so as to prevent turning during tightening, means to provide linear contact with a standardized mechanical joint bell flange surface. The nut means has adjacent surfaces sloping away from the linear contact so as to provide for axial misalignment of the screw.

• Assignee: NOV; NOV-87-045569; EDB-87-053419
• Patent Number(s): US 4637641
• OSTI ID: 6902312
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
032000* -- Natural Gas-- Transport
Handling
& Storage
42 ENGINEERING
420205 -- Engineering-- Transport & Storage Facilities-- (1980-)
ENERGY SOURCES
FABRICATION
FASTENERS
FASTENING
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
GASKETS
HYDROGEN COMPOUNDS
JOINING
JOINTS
NATURAL GAS
OXYGEN COMPOUNDS
PIPE JOINTS
PIPELINES
SEALS
STANDARDIZATION
THREADED JOINTS
TORQUE
TRANSPORT
WATER
WATER SUPPLY