Patent ID: 6854253

Claim:
A mower discharge door operating linkage mechanism assembly for a power mower of the type having one or more rotatable cutting elements disposed horizontally below an inverted dish like housing that has a cuttings discharge opening in a side wall of the housing and a rigid frame structure, a door mounted on said housing and moveable from one to another of first and second positions respectively covering and uncovering said discharge opening, and a linkage system mounted on said mower for controllably moving said door from one to the other of said first and second positions, said assembly comprising: a linkage actuator, means mounting said linkage actuator on said mower at a position in easy reach of an operator of the mower during mowing, a first and second pair of L-shaped arcuate members each having a crank arm radiating outwardly from a pivot mounting means thereon, means pivotally connecting said pivot mountain means of said first and second arcuate member on said mower at positions spaced apart from one another, a first link member operatively interconnecting said actuator and one of said crank arms of said first arcuate member, a second link member operatively interconnecting the other one of said crank arms on said first arcuate member and one of the crank arms of said second arcuate member and a third link member operatively interconnecting the other one of said crank arms of said second arcuate member and said door whereby the operator is able to controllably move the discharge door from one to the other of said first and second positions while mowing.