Metering syringe

Details Metering syringe Metering syringe

1980-02-25

1982-09-07

Skaggs, H. Grant

Pumps

Motor driven

Fluid motor

222334, F04B 3700

Patent

active

043481604

ABSTRACT:
A metering syringe for transferring fluid media in predetermined volumes from one container to another container comprised of a unitary structural unit defined by a combination of a piston-burette, a pneumatic drive therefore and a pneumatically-actuated valve means, all operating from a common compressed air source. A double-headed piston of the pneumatic drive is attached to a free end of the piston rod from the piston-burette, with the diameter of the piston-rod being of such size relative to the diameter of the double-headed piston that the two pneumatically effective piston-head surfaces of the double-headed piston differs significantly from one another. A compressed air source is connected to the pneumatic drive on both sides of the double-headed piston so as to act on the respective piston-head surfaces in such a manner that the piston-head having a relatively smaller effective surface is constantly biased by the compressed air and the piston-head with a relatively larger effective surface is selectively biased by the compressed air to control movement of the double-headed piston. A somewhat similar double-headed piston arrangement is provided in the valve means and pneumatically interconnected with the pneumatic drive for cooperative operation therewith.

REFERENCES:
patent: 3180527 (1965-04-01), Wasilewski et al.
patent: 3192969 (1962-07-01), Baruch et al.
patent: 3500753 (1970-03-01), Greene, Jr.
patent: 3666147 (1972-05-01), Shiraki et al.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1340470