Pipeline weld repair cap
Pivotally mounted fuel collector
Plug
Plug cock
Plug mechanism for wellhead tool
Plug valve
Plug valve
Plumbing apparatus
Plumbing tool
Plumbing tool and method for repairing a pipe therewith
Plumbing tool and method for repairing a pipe therewith
Pollution control device
Port closure apparatus for differentially pressured vessels
Ported gate valve
Power transmission
Pressure balance device for use in a faucet
Pressure control valve
Pressure equalization valve and technique for shaft furnace
Pressure pipeline structure and method
Pressure plug