Patent · US Expired

Batch type dish washing machine with free floating spray arm assemblies

US6044853A · kind A · utility

3Cited by
6References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 24, 1998
Grant dateApr 4, 2000
Priority date
Expiry dateNov 24, 2018

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA47L15/23
  • WIPO fieldFurniture, games
  • WIPO sectorOther fields

Abstract

A batch type dish washing machine having spray assemblies supported for rotation on special bearings. Each spray assembly has a spray base through which a pedestal extends to provide a rotational axis. A rotary hub has a bearing compartment which houses a bearing having opposing races and balls located in an annular track between the races. The bearing races are captured between a pair of collars secured to the pedestal by a thumb screw. Water is applied to the dishware by spray arms which extend radially from the hub.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.