Pump for use in a paint application apparatus

Details Pump for use in a paint application apparatus Pump for use in a paint application apparatus

1975-09-24

1977-04-12

Husar, C. J.

Rotary expansible chamber devices

With removal or accommodation of solid foreign material in...

418206, F04C 1500, F04C 114

Patent

active

040172228

ABSTRACT:
A pump for use in a paint application apparatus which is so constructed that there is provided a clearance between an appropriate portion of an internal surface of a casing of the pump and an external periphery of protruded portions of a rotor of the pump, and there is provided another clearance between an internal periphery of the protruded portions of the rotor and an external periphery of a cylinder section of a grand box of the pump. Further, in the pump, an appropriate portion of the internal surface of the casing of the pump, the external and internal peripheries of the rotor of the pump and the external periphery each of the cylinder section of the grand boxes are made hard by quenching, applying thereto an extremely hard alloy or spraying thereonto a hard material such as molybdenum. With the arrangement mentioned above, a paint including a vast plurality of glass beads and aggregates such as a silica and limestone in the form of sand, can be pressedly conveyed without any difficulty and consequently, the pump can retain a long and useful life.

REFERENCES:
patent: 258535 (1882-05-01), Kidder
patent: 2633807 (1953-04-01), Collura
patent: 2836125 (1958-05-01), Funk
patent: 3150600 (1964-09-01), Hartley
patent: 3191545 (1965-06-01), Funk
patent: 3360191 (1967-12-01), Yamamoto
patent: 3799713 (1974-03-01), Cloots

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