The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 1978
Filed:
Oct. 06, 1976
Ernst Grunewald, Troy, OH (US);
Hobart Corporation, Troy, OH (US);
Abstract
The drain filter has large inlet openings at a raised position and small inlet openings at its bottom, all shaped to cooperate with the dishwashing machine sump to form labyrinthine drainage passageways to stop debris exceeding an acceptable size. The drain filter is in two parts, a fixed portion and a removable portion, both of which provide these features. The large inlet openings into the removable portion of the drain filter are upwardly facing and on the downstream side of an elevated wall which forms a dam to stop dense objects from entering the filter. The total filter inlet area is small to maintain a high flow velocity to float softer and lighter items over the dam for removal from the dishwasher when it is drained. The small inlet openings drain the remaining fluid after the level falls below the large openings.