Patent ID: 11895945
Assignee: THE TORO COMPANY
Field: Other special machines (Mechanical engineering)
Classification: CPC A | IPC A

Claim 0:
1. A walk power mower, which comprises:
a deck supported for movement over the ground, the deck having a cutting chamber comprising a top and a sidewall that depends downwardly from the top;
a blade contained within the cutting chamber, wherein the blade rotates about a substantially vertical axis of rotation in a substantially horizontal cutting plane to cut grass within the cutting chamber;
an upwardly and rearwardly extending handle assembly attached to the deck, the handle assembly being configured to permit a user who walks on the ground behind the handle assembly to grip the handle assembly to thereby guide and manipulate the mower while cutting the grass; and
an assembly configured to add ambient air to the cutting chamber, the assembly comprising:
an air vent which permits the ambient air to enter into the cutting chamber, the air vent passing through the top of the cutting chamber; and
an enclosed tunnel located within the cutting chamber extending from the air vent to an air discharge opening, the enclosed tunnel configured to receive the ambient air that has entered through the air vent and discharge the ambient air through the air discharge opening of the enclosed tunnel and into the cutting chamber, wherein the air discharge opening of the enclosed tunnel is closer to the axis of rotation of the blade than is the air vent.