Claims
- 1. A screw machine comprising a rotor housing having a pair of parallel, overlapping bores; a conjugate pair of intermeshing rotors located in said bores, each of said rotors having helical lobes and intervening flutes; an outlet casing disposed at a discharge end of said rotor housing, each of said rotors having a discharge end facing said outlet casing; characterized by a conformable coating disposed between said discharge ends of said rotors and said outlet casing.
- 2. The screw machine of claim 1 wherein said conformable coating Comprises a coating on said discharge ends of said rotors.
- 3. The screw machine of claim 1 wherein said conformable coating comprises a coating on said outlet casing.
- 4. The screw machine of claim 1 further characterized by a member located intermediate said discharge ends of said rotors and said outlet casing, said member having a surface facing said discharge ends of said rotors, said conformable coating comprising a coating on said surface of said member.
REFERENCE TO RELATED APPLICATION
[0001] This application is a division of U.S. patent application Ser. No. 09/607,764, filed Jun. 30, 2000, for Screw Machine.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60166041 |
Nov 1999 |
US |
Divisions (1)
|
Number |
Date |
Country |
Parent |
09607764 |
Jun 2000 |
US |
Child |
10307765 |
Dec 2002 |
US |