Patent ID: 11884482
Assignee: nan
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 14:
15. A tailgate assembly, comprising:
a tailgate;
a tailgate hinge that is operable to attach the tailgate to a vacuum tank such that the tailgate is movable between an open position and a closed position, the vacuum tank operable to withstand vacuum pressure when the tailgate is in the closed position, the tailgate is constructed from a steel with a ductile brittle transition temperature less than −50 degrees Celsius;
a tailgate warming tube loop, the tailgate warming tube loop having an entrance and an exit, the tailgate warming tube loop operable to circulate a heated fluid through the tailgate warming tube loop wherein the heating fluid enters the tailgate warming tube loop through the entrance and exits the tailgate warming tube loop through the exit, the tailgate warming tube loop attached to an interior surface of the tailgate;
a first rear pipe flange that comprises a first rear pipe flange warming channel in communication with the tailgate warming tube loop; and
a second rear pipe flange that comprises a second rear pipe flange warming channel in communication with the tailgate warming tube loop.