Roots type pump with pin connection for plastic coated rotor

Details Roots type pump with pin connection for plastic coated rotor Roots type pump with pin connection for plastic coated rotor

1986-06-26

1988-08-16

Vrablik, John J.

Rotary expansible chamber devices

Non-metallic working member, cylinder or partition

418178, 418206, 291564R, 29525, 403379, F04C 1818, F04C 2900, B23P 1100, F16D 106

Patent

active

047640987

ABSTRACT:
A Roots type pump comprising a pair of mating lobed rotors which are supported by rotor shafts, respectively. Each rotor is fixed to the corresponding rotor shaft by a pin forcibly inserted in a through hole provided through the rotor and rotor shaft. The outer surface of each rotor is surrounded by a coating layer of plastic material, at which the through hole has end openings having cross sectional dimensions greater than that of the substantial part of the through hole.

REFERENCES:
patent: 2337903 (1943-12-01), Lauck
patent: 2506491 (1950-05-01), De Boisblanc
patent: 3275225 (1966-09-01), Schultz
patent: 4086043 (1978-04-01), Howe

Affiliated with

Also associated with

Rating

Roots type pump with pin connection for plastic coated rotor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Roots type pump with pin connection for plastic coated rotor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roots type pump with pin connection for plastic coated rotor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-597955