This inventor holds 3 USPTO granted patents. Top assignee: Hobart Corporation. Active years: 1977-1978.
Company Filing History:
Years Active: 1977-1978
Title: The Innovative Contributions of Ernst Grunewald
Introduction
Ernst Grunewald is a notable inventor based in Troy, OH (US). He has made significant contributions to the field of dishwashing technology, holding a total of 3 patents. His work focuses on improving the efficiency and functionality of dishwashing machines.
Latest Patents
One of Grunewald's latest patents is a drain filter for a dishwashing machine. This innovative drain filter features large inlet openings at a raised position and small inlet openings at its bottom. These openings are designed to cooperate with the dishwashing machine sump, forming labyrinthine drainage passageways that prevent debris from exceeding an acceptable size. The drain filter consists of two parts: a fixed portion and a removable portion, both providing essential features. The large inlet openings in the removable portion face upward and are located on the downstream side of an elevated wall, which acts as a dam to stop dense objects from entering the filter. The total filter inlet area is small, maintaining a high flow velocity to float softer and lighter items over the dam for removal when the dishwasher is drained. The small inlet openings effectively drain the remaining fluid after the level falls below the large openings.
Another significant patent by Grunewald is the upper level wash arm system. This system includes a rotating spray arm supported by a removable and vertically adjustable upper rack of a dishwasher. Notably, the fluid coupling for the spray arm remains unaffected by changes in the upper rack's vertical position. Additionally, the spray arm is protected by a guard that serves as a stand for the rack when it is removed from the dishwasher.
Career Highlights
Grunewald's career has been marked by his dedication to innovation in the dishwashing industry. He works at Hobart Corporation, where he continues to develop and refine technologies that enhance the performance of dishwashing machines.
Collaborations
Throughout his career, Grunewald has collaborated with talented individuals such as Paul B Geiger and Ben J Vallor. These partnerships have contributed to the successful development of his innovative patents.
Conclusion
Ernst Grunewald's contributions to dishwashing technology through his patents demonstrate his commitment to innovation and efficiency. His work continues to impact the industry positively, making dishwashing machines more effective and user-friendly.