Patent ID: 11931766
Assignee: GRACO MINNESOTA INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC B  F  G | IPC B  G

Claim 0:
1. A plural material dispensing system comprising:
a motor;
a slide bracket connected to and configured to be driven by the motor;
a first cylinder;
a first pump rod mounted to the slide bracket and extending into the first cylinder,
the first pump rod comprising:
a first fluid inlet extending into the first pump rod;
a first fluid outlet extending through a first end of the first pump rod disposed within the first cylinder; and
a first flow path extending through the first pump rod between the first fluid inlet and the first fluid outlet;

a first piston mounted on the first end of the first pump rod;
a second cylinder;
a second pump rod mounted to the slide bracket and extending into the second cylinder, the second pump rod comprising:
a second fluid inlet extending into the second pump rod;
a second fluid outlet extending through a first end of the second pump rod disposed within the second cylinder; and
a second flow path extending through the second pump rod between the second fluid inlet and the second fluid outlet; and

a second piston mounted on the first end of the second pump rod;
wherein the slide bracket is configured to drive the first pump rod, first piston, second pump rod, and second piston in a first direction during a dispense stroke and a second direction during a refill stroke.