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:
Sep. 30, 2025
Filed:
Jan. 26, 2022
Ningbo Fotile Kitchen Ware Co., Ltd., Ningbo, CN;
Shuhan Zhao, Ningbo, CN;
Feng Zheng, Ningbo, CN;
Benzhu Wei, Ningbo, CN;
Yonglei Yao, Ningbo, CN;
Zhengzan Shi, Ningbo, CN;
Changhai Zhang, Ningbo, CN;
Jianjian Han, Ningbo, CN;
Yong Jiang, Ningbo, CN;
Ningbo Fotile Kitchen Ware Co., Ltd., Ningbo, CN;
Abstract
A spray arm, a water pumping mechanism and a cleaning machine thereof are disclosed in the present invention. The spray arm comprises a body (') and a top plate (′). An air collection chamber (′) is defined between the top plate (′) and the top surface (′) of the body (′), a plurality of water spray holes () is arranged in the air collection chamber (′), the top plate (′) has a plurality of spray openings () each corresponding to one water spray hole (), and a gap () is formed between a top end of each water spray hole () and a bottom end of the corresponding spray opening (). According to the Venturi effect, the air in the air collection chamber can be sucked into the spout through the gap when the water flow passes through the water spray hole and is jetted out through the spray opening, such that bubbles are entrained in the jet flow; the bubbles are broken on surfaces of dishes or fruits and vegetables, which can improve dirt stripping force, and improve the washing effect.