Patents by Inventor Hsiu-Chuan Chang

Hsiu-Chuan Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Food heating device with multilayer shelf
    Patent number: 11229320
    Abstract: A food heating device with multilayer shelf includes a base, one or more shelf support, a first side wall member, a second side wall member, a bottom cover member, a middle cover member, and a top lamp bracket. There are two or more layers of heating rollers between the first side wall member and the second side wall member. The bottom cover member and the middle cover member are disposed above bottom heating rollers and middle heating rollers. Each of the cover members at different layers has a cover body. The cover body covers foods on the heating rollers. In addition, one or more lamp bodies can be provided. The food heating device with multilayer shelf is capable of increasing space for exhibition of foods and also increasing overall brightness by adding the lamp bodies.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: January 25, 2022
    Assignee: PRESIDENT CHAIN STORE CORP.
    Inventors: Hung-Wei Chen, Hsiu-Chuan Chang, Kuo-Yi Liu, Li-Ping Yang, Chun-Ling Tai
  • FOOD HEATING DEVICE WITH MULTILAYER SHELF
    Publication number: 20190208956
    Abstract: A food heating device with multilayer shelf includes a base, one or more shelf support, a first side wall member, a second side wall member, a bottom cover member, a middle cover member, and a top lamp bracket. There are two or more layers of heating rollers between the first side wall member and the second side wall member. The bottom cover member and the middle cover member are disposed above bottom heating rollers and middle heating rollers. Each of the cover members at different layers has a cover body. The cover body covers foods on the heating rollers. In addition, one or more lamp bodies can be provided. The food heating device with multilayer shelf is capable of increasing space for exhibition of foods and also increasing overall brightness by adding the lamp bodies.
    Type: Application
    Filed: October 30, 2018
    Publication date: July 11, 2019
    Inventors: Hung-Wei Chen, Hsiu-Chuan Chang, Kuo-Yi Liu, Li-Ping Yang, Chun-Ling Tai
  • Continuous sand filter
    Patent number: 5746913
    Abstract: A continuous sand filter has a tank provided therein with a first separation container and a second separation container. The continuous filtration of the waste water is carried out in the first separation container and the second separation container. The first separation container is provided with an arresting piece capable of enhancing the filtration effect. The light and the heavy impurities are treated separately in the first separation container. The further filtration process is carried out continuously in the second separation container.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: May 5, 1998
    Inventors: Hsiu-Chuan Chang, Mao-Sheng Lin
  • Food cooking equipment
    Patent number: D887768
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: June 23, 2020
    Assignee: PRESIDENT CHAIN STORE CORP.
    Inventors: Hung-Wei Chen, Hsiu-Chuan Chang, Kuo-Yi Liu, Li-Ping Yang, Chun-Ling Tai