Magnetic fluid seal assembly

Details Magnetic fluid seal assembly Magnetic fluid seal assembly

1988-12-15

1991-04-23

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277135, 384446, 384477, F16J 1540, F16C 3382

Patent

active

050094360

ABSTRACT:
A magnetic fluid seal assembly comprising an annular sealing clearance communicating with an external space, an annular permanent magnet for forming a magnetic field in the sealing clearance, a ferromagnetic fluid retained in the sealing clearance by the magnetic field but rotationally movable in the sealing clearance, and a scattering preventive portion provided axially outwardly of the sealing clearance for preventing the ferromagnetic fluid from scattering to the external space when the ferromagnetic fluid is rotationally moved.

REFERENCES:
patent: 3240341 (1966-03-01), Rosaen
patent: 3834775 (1974-09-01), Tuffias
patent: 4293137 (1981-10-01), Ezekiel
patent: 4407508 (1983-10-01), Raj
patent: 4424974 (1984-01-01), Mitsuya
patent: 4486026 (1984-12-01), Furumura
patent: 4502700 (1985-03-01), Gowda et al.
patent: 4519010 (1985-05-01), Elsaesser
patent: 4526379 (1985-07-01), Raj
patent: 4526382 (1985-07-01), Raj et al.
patent: 4565379 (1986-01-01), Ballhaus
patent: 4817964 (1989-04-01), Black, Jr.

Affiliated with

Also associated with

Rating

Magnetic fluid seal assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1616702