Patent ID: 11938507
Assignee: DOSELOGIX, LLC
Field: Surface technology, coating (Chemistry)
Classification: CPC B  A | IPC A  B

Claim 7:
8. A metering dispenser comprising:
a body comprising:
a first end;
a second end opposite from the first end; and
a chamber between the first end and the second end;

a plunger within the chamber and movable between the first end and the second end of the body, wherein the plunger comprises a first end and a second end, wherein the first end comprises an end surface, wherein a sidewall extends from the first end to the second end, wherein:
a first rib and a second rib extend outwards from the sidewall of the plunger between the first end and the second end of the plunger, wherein the first rib is a sealing rib comprising an arcuate surface extending in a direction from the first end to the second end of the plunger and is configured to provide a fluid seal with the body, and wherein the second rib is between the first rib and the second end of the plunger and is configured to provide stability to the plunger; and

a drive screw comprising an elongated shaft defining an end of the drive screw and extending into the chamber, wherein the drive screw is coupled to the plunger, wherein movement of the drive screw moves the plunger along an axis within the chamber between the first end and the second end.