Patent · US Expired

Commercial kitchen sink drain improvement

US6576140B1 · kind B1 · utility

12Cited by
44References
33Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 25, 2001
Grant dateJun 10, 2003
Priority date
Expiry dateMay 6, 2021

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC02F2103/002
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A food disposal system for installation on a drain of a commercial kitchen sink enables segregation of oil/grease from effluent flows from the drain. A housing collects effluent flows containing water, oil/grease, and solids from the drain, and a macerating pump has an inlet connected to an opening of the housing and an outlet connected to a sanitary drain. A greasy water outlet extends to an oil/grease separator from an outlet on the housing above the macerating pump inlet, and a hot water backflush source enables hot water to flow into the housing.

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