Method of producing a rotor for rotary slide-vane vacuum pumps,

Details Method of producing a rotor for rotary slide-vane vacuum pumps, Method of producing a rotor for rotary slide-vane vacuum pumps,

1980-05-15

1985-12-31

Crane, Daniel C.

Rotary expansible chamber devices

Interconnected vanes

Integrally connected

418270, 291564R, 29445, B23P 1300, B23P 1500

Patent

active

045618372

ABSTRACT:
A rotor for a rotary slide-vane vacuum pump and a method of producing same comprises providing two rotor sections, each having a shaft stub, a rotor portion and a plane or contact surface produced by lathing, forming axial slot portions for accommodate one or more slide vanes through the contact surfaces, assembling the two rotor sections by the use of an assembling jig and fixedly joining the sections together and finishing the external surfaces of the assembled rotor with respect to at least one of length and diameter while the rotor is held in one and the same fixture.

REFERENCES:
patent: 325361 (1885-09-01), Rowbotham
patent: 1290657 (1919-01-01), Rasmussen
patent: 1483189 (1924-02-01), Pearson
patent: 1505788 (1924-08-01), Larson et al.
patent: 1528075 (1925-03-01), Richter
patent: 1572738 (1926-02-01), Maroger
patent: 2380628 (1945-07-01), Zempel
patent: 2782725 (1957-02-01), Hojberg
patent: 3522647 (1970-08-01), Holcomb et al.
patent: 3760480 (1973-09-01), Tupker

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