Grinding mechanism for a food waste disposer and method of making the grinding mechanism
US6439487B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2000 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Mar 14, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03C1/2665
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A grinding mechanism or assembly for a food waste disposer, the grinding mechanism being enclosed in a housing of the food waste disposer. The grinding mechanism includes a shredder plate assembly and a stationary shredder ring. The shredder plate assembly has an upper rotating plate and a lower lug support plate. The lower lug support plate has a body portion, and shredder lugs and tumbling spikes integrally formed with the body portion. The upper rotating plate has key slots and key holes for receiving the fixed shredder lugs and tumbling spikes. The stationary shredder ring is fixed to the housing of the food waste disposer and has a plurality of teeth. The stationary shredder ring may also have diverters and breakers. The fixed shredder lugs force food waste against the teeth of the stationary shredder ring to grind the food waste into particulate matter. The profile of the fixed shredder lug may include a vertical toe, a notch and a heel. The heel has a slope that decreases inwardly toward the center of the lower lug support plate. The shredder plate assembly and stationary shredder ring may be formed by stamping methods, by powdered metal methods, by injection molding methods…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.