Rotary pump for hot pitch, asphalt and like viscous solidifiable

Details Rotary pump for hot pitch, asphalt and like viscous solidifiable Rotary pump for hot pitch, asphalt and like viscous solidifiable

1976-10-04

1977-11-29

Vrablik, John J.

Rotary expansible chamber devices

Shaft or trunnion lubrication or sealing by diverted working...

418104, 418169, 277105, F01C 1900, F01C 2104, F04C 1500, F16J 1518

Patent

active

040603539

ABSTRACT:
A rotary pump for hot pitch, asphalt and like viscous solidifiable material, having a cylindrical outer extension on a packing gland to provide an elongated passage around a driving shaft, thereby allowing leaking material to solidify and be reduced into powder before falling from the outer end of the packing gland.

REFERENCES:
patent: 860035 (1907-07-01), Kerr
patent: 1768818 (1930-07-01), Bock
patent: 1923291 (1933-08-01), Zimmerer
patent: 2314489 (1943-03-01), Fennema
patent: 3976405 (1976-08-01), Geiger et al.

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