Ducted cover grass collection system
US4924664A · kind A · utility
Inventors
Key dates
| Filing date | Oct 18, 1988 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Oct 18, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D2101/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A ducted cover grass collection system for a lawn mower includes a hopper with a front end having an inlet, a rear end having an outlet and an open upper end, a deflector hood located at the front end to partially cover the open upper end, and a lid covering the remainder of the open upper end, the lid having a duct open at a front end and having a rear end in communication with the outlet so that a flow of clippings and air is introduced through the inlet and projected generally horizontally toward the rear end of the hopper, so that the clippings settle to the bottom of the hopper, after which the air is directed back toward the deflector hood, through the duct and is discharged via the outlet. An air flow indicator located in the hopper lid pivots when the air flow in the duct decreases, signaling that the hopper is filled with clippings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.