Pump mechanism having a drive motor with an external rotor

Details Pump mechanism having a drive motor with an external rotor Pump mechanism having a drive motor with an external rotor

1992-11-17

1994-08-30

Bertsch, Richard A.

Pumps

Motor driven

Electric or magnetic motor

417474, 310 67R, F04B 4308, F04B 1700

Patent

active

053421809

ABSTRACT:
A pump mechanism using a drive motor having an external rotor. In one case, cams are mounted on the external surface of the rotor. Cam followers or peristaltic fingers engage the cams and move linearly in response to the rotational cam motion. The cam surfaces are rotated from adjacent cam surfaces to achieve a peristaltic effect through the peristaltic fingers sequentially pressing against the fluid tubing. In another case, the external surface of the rotor is threaded and elongated. A nut is mounted on the rotor and confined to travel in only a linear direction. A coupling arm is connected between the nut and a syringe plunger to force the plunger into the syringe barrel and thereby move the fluid.

REFERENCES:
patent: 1922196 (1933-08-01), Butler
patent: 2682617 (1949-09-01), Reich et al.
patent: 3760207 (1973-09-01), Abraham et al.
patent: 3806744 (1974-04-01), Abraham et al.
patent: 4143425 (1979-03-01), Runge
patent: 4293961 (1981-10-01), Runge
patent: 4604034 (1986-08-01), Wheeldon et al.
patent: 4648812 (1987-03-01), Kubayashi et al.
patent: 4653987 (1987-03-01), Tsuji et al.
patent: 4672250 (1987-06-01), Seitz
patent: 4686400 (1987-08-01), Fujisaki et al.
patent: 4771197 (1988-09-01), Ivanto et al.
patent: 4814651 (1989-03-01), Elris
patent: 4954046 (1990-09-01), Irvin et al.
patent: 5211548 (1993-05-01), Okada

Affiliated with

Also associated with

Rating

Pump mechanism having a drive motor with an external 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 Pump mechanism having a drive motor with an external rotor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pump mechanism having a drive motor with an external rotor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-26146