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

Claim 20:
21. A walk power mower, which comprises:
a deck supported for movement over the ground, the deck having a cutting chamber;
a blade contained within the cutting chamber, wherein the blade rotates about a substantially vertical axis 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 external cover located outside of the cutting chamber with the external cover having an air permeable section;
an air vent passing through a top of the cutting chamber, the air vent in fluid communication with the external cover to receive and pass the ambient air which flows through the air permeable section of the external cover into the cutting chamber; and
an internal cover located within the cutting chamber in fluid communication with the air vent and configured to receive the ambient air that has entered through the air vent and discharge the ambient air through an air discharge opening in the internal cover that is within the cutting chamber at a location spaced radially inward towards the vertical axis.