Drip free, volume-adjustable, automatic liquid dispenser

Details Drip free, volume-adjustable, automatic liquid dispenser Drip free, volume-adjustable, automatic liquid dispenser

1992-12-07

1994-04-26

Kashnikow, Andres

Dispensing

Automatic control

222181, 222309, 222333, 222375, 222490, 222494, B67D 100

Patent

active

053059166

ABSTRACT:
In a pump, a piston rod is mounted for lost motion on a piston head so that when the piston rod 31 is advanced by a full stroke in a forward direction from a fully retracted position, only the piston rod moves for an initial stroke portion S2, then a piston head is also advanced with the piston rod for a final stroke portion which is equivalent to a difference between the full stroke S1 and initial stroke portion S2 (S3=S1-S2), and a liquid inside said cylinder is expelled from the exhaust port by a quantity corresponding the final stroke portion S3. When the piston rod is being withdrawn in the return direction, only the piston rod is moved during the initial stroke portion causing residual liquid in a passageway from the cylinder to the exhaust port to be sucked back to the cylinder.

REFERENCES:
patent: 2464030 (1949-03-01), Engstrom
patent: 2894665 (1959-07-01), Zerlin
patent: 3434628 (1969-03-01), Ceraldi
patent: 3489099 (1970-01-01), Huffsmith, Sr.
patent: 3716310 (1973-02-01), Guenther
patent: 4645094 (1987-02-01), Acklin et al.
patent: 4917265 (1990-04-01), Chiang
patent: 4967935 (1990-11-01), Celest
patent: 4991745 (1991-02-01), Brown
patent: 5033655 (1991-07-01), Brown
patent: 5058780 (1991-10-01), Plester et al.

Affiliated with

Also associated with

Rating

Drip free, volume-adjustable, automatic liquid dispenser does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drip free, volume-adjustable, automatic liquid dispenser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drip free, volume-adjustable, automatic liquid dispenser will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1706733