Rotary pump for hot pitch, asphalt and like viscous...

F - Mech Eng,Light,Heat,Weapons – 04 – C

Patent

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277/45, 103/82

F04C 2/00 (2006.01) F04C 15/00 (2006.01) F16J 15/00 (2006.01) F16J 15/18 (2006.01)

Patent

CA 1078254

ABSTRACT OF THE DISCLOSURE A rotary pump for hot pitch, asphalt and similar viscous solidifiable materials, having a cylindrical outer extension on a packing gland to provide a prolonged passage around the driving shaft of the pump, thereby allowing material leaking along the shaft through the gland to solidify and be reduced into a powder before falling from the outer end of the packing gland, thus preventing the viscous material from dripping onto a floor or the like before solidification has taken place.

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