Patent ID: 11891989
Assignee: BLUE-WHITE INDUSTRIES, LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A diaphragm pump assembly comprising:
a first diaphragm chamber having an inlet, an outlet, and a first flexible wall;
a second diaphragm chamber having an inlet, an outlet, and a second flexible wall;
a pump drive chamber positioned between the first diaphragm chamber and the second diaphragm chamber;
a drive yoke positioned within the pump drive chamber, the drive yoke defining a yoke pocket;
a motor;
a motor shaft connected to the motor and extending into the pump drive chamber and into the yoke pocket, the motor shaft having an axis;
an offset cam configured to rotate in response to rotation of the motor shaft and positioned within the yoke pocket, wherein the motor shaft extends beyond the offset cam opposite the motor;
a first piston connected to the first flexible wall and to the drive yoke;
a second piston connected to the second flexible wall and to the drive yoke; a motor shaft support positioned on a side of the offset cam opposite the motor, the motor shaft support resisting translation of the motor shaft in a direction perpendicular to the axis of the motor shaft,
wherein a portion of the motor shaft extends beyond the drive yoke opposite the motor and the motor shaft support resists translation of the portion of the motor shaft beyond the drive yoke opposite the motor in the direction perpendicular to the axis of the motor shaft.