Method of making thermoplastic valve rotors

Details Method of making thermoplastic valve rotors Method of making thermoplastic valve rotors

1991-04-30

1993-09-21

Aftergut, Karen

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

29558, 29890132, 264154, 264162, 264163, 264294, 264296, 264310, B28B 102, B28B 148

Patent

active

052466558

ABSTRACT:
A method of making a rotor for a rotary valve including cutting a round slug of a plastic material to a desired length, turning the round slug on a lathe to provide a desired outside diameter, milling the slug on a vertical milling machine to form a plurality of circumferentially spaced pockets, each of the pockets having rounded wall junctures and corners on a vertical milling machine, and milling an axial hole in the slug for receiving an end portion of a drive shaft.

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