Patent ID: 11905944
Assignee: WARREN RUPP, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A flap valve for a diaphragm pump, comprising:
a body configured to move between an open position and a closed position, the body having a front portion and a rear portion, wherein the front portion includes a front surface comprising a raised portion and a recessed portion, wherein the front surface is configured to form a seal with a surface of the diaphragm pump when the body is in the closed position, wherein the body is configured to allow a downstream flow of a fluid when the flap valve is in the open position, and wherein the surface of the diaphragm pump is disposed at an inlet portion or an outlet portion of a pumping chamber within the diaphragm pump;
a self-centering hinge portion operably connected to the body and operably connected to the surface of the diaphragm pump, the self-centering hinge portion having a dynamically changing longitudinal axis, the body configured to translate about the dynamically changing longitudinal axis and simultaneously rotate about the dynamically changing longitudinal axis to close against the surface of the diaphragm pump; and
a bias pad operably connected to the rear portion of the body, the bias pad configured to apply force to the rear portion against the direction of fluid flow.