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:
Mar. 30, 2021
Filed:
Jan. 14, 2020
Nubiz Plastic (Nantong) Co., Ltd, Qidong, CN;
Wei Zhu, Qidong, CN;
Nubiz Plastic (Nantong) Co., Ltd., Quidong, CN;
Abstract
A pump assembly comprises a pump main body having a first cavity and a press rod. The press rod has a rod body and a piston portion in which the rod body is slidably provided in the first cavity in a penetrating manner and one end thereof extends out of the first cavity. The piston portion is connected to the rod body and is located in the first cavity to divide it into a first gas cavity and a second gas cavity, one or more of which are sealed cavities. Since the piston portion can rebound under the resultant force of a gas pressure in the gas cavities, the pump main body does not need a spring for rebounding the rod body. Accordingly, the pump assembly can be entirely made of a plastic material, and no metal material is mixed, so the pump assembly is easily recycled.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile