Screw machine

Details Screw machine Screw machine

2006-01-24

2006-01-24

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

With wear surface treatment or integrally plated wear layer

C418S201100

Reexamination Certificate

active

06988877

ABSTRACT:
A screw machine (10) has a rotor housing (12) defining overlapping bores (12-1, 12-2). Female rotor (14) is located in bore (12-1) and male rotor (16) is located in bore (12-2). A wear resistant coating is deposited on the tips (14-1, 16-1) of the rotors. A conformable coating is deposited on the valleys (14-2, 16-2) of the rotors. A conformable coating is deposited on the surface of the bores coacting with the rotors.

REFERENCES:
patent: 2754050 (1956-07-01), Wellington
patent: 2882189 (1959-04-01), Russell et al.
patent: 3833321 (1974-09-01), Teland et al.
patent: 4089625 (1978-05-01), Hofmann, Jr.
patent: 4466785 (1984-08-01), Biswas
patent: 4490102 (1984-12-01), Carre et al.
patent: 4549862 (1985-10-01), Stich et al.
patent: 4695233 (1987-09-01), Miyoshi et al.
patent: 4764098 (1988-08-01), Iwase et al.
patent: 5011389 (1991-04-01), Timuska
patent: 5116912 (1992-05-01), Lindert et al.
patent: 5288556 (1994-02-01), Lemelson
patent: 5314321 (1994-05-01), Yamamoto et al.
patent: 5364250 (1994-11-01), Aoki et al.
patent: 5554020 (1996-09-01), Rao et al.
patent: 5638600 (1997-06-01), Rao et al.
patent: 5672054 (1997-09-01), Cooper et al.
patent: 5947710 (1999-09-01), Cooper et al.
patent: 5993183 (1999-11-01), Laskaris et al.
patent: 6290480 (2001-09-01), Lifson
patent: 6595763 (2003-07-01), Wagner et al.
patent: 3609996 (1987-10-01), None
patent: 0 378 009 (1990-07-01), None
patent: 535554 (1941-04-01), None
patent: 2 121 112 (1983-12-01), None
patent: 56-75992 (1981-06-01), None
patent: 05-001685 (1983-01-01), None
patent: 60-56190 (1985-04-01), None
patent: 60-56191 (1985-04-01), None
patent: 61-190184 (1986-08-01), None
patent: 61-192880 (1986-08-01), None
patent: 03-179190 (1991-08-01), None
patent: 05-149278 (1993-06-01), None
patent: 05-288176 (1993-11-01), None
patent: 08177772 (1996-12-01), None

Affiliated with

Also associated with

Rating

Screw machine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Screw machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Screw machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3524690