Patents by Inventor Hongyong Mao

Hongyong Mao 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).

  • Patent number: 12102240
    Abstract: Disclosed is portable child game bed, including bed legs and folding driving device. Guard bars are respectively arranged at tops between every two adjacent bed legs, two ends of guard bar are respectively movably connected to tops of corresponding bed legs, connecting mechanism is arranged at bottom of each bed leg, connecting rod is composed of upper connecting rod and lower connecting rod that are vertically arranged, connecting mechanism comprises base and transmission mechanism, one end of upper connecting rod is connected to base, the other end of upper connecting rod is rotationally connected to frame body, one end of lower connecting rod is rotationally connected to base, the end of lower connecting rod that extends into inner cavity of lower portion of base is linked together with transmission mechanism, and the other end of lower connecting rod is rotationally connected to frame body.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: October 1, 2024
    Assignee: ANHUI COOLBABY SCIENCE & TECHNOLOGY DEVELOPMENT CORPORATION
    Inventor: Hongyong Mao
  • Publication number: 20220296007
    Abstract: Disclosed is portable child game bed, including bed legs and folding driving device. Guard bars are respectively arranged at tops between every two adjacent bed legs, two ends of guard bar are respectively movably connected to tops of corresponding bed legs, connecting mechanism is arranged at bottom of each bed leg, connecting rod is composed of upper connecting rod and lower connecting rod that are vertically arranged, connecting mechanism comprises base and transmission mechanism, one end of upper connecting rod is connected to base, the other end of upper connecting rod is rotationally connected to frame body, one end of lower connecting rod is rotationally connected to base, the end of lower connecting rod that extends into inner cavity of lower portion of base is linked together with transmission mechanism, and the other end of lower connecting rod is rotationally connected to frame body.
    Type: Application
    Filed: January 27, 2022
    Publication date: September 22, 2022
    Inventor: Hongyong MAO
  • Publication number: 20170290444
    Abstract: A foldable playpen includes four top fence assemblies, four side fence assemblies and a bottom frame assembly, the first end of each bottom frame rail being movably attached to the bottom frame foldable connector; an operating device for engaging the four top fence joint assemblies with the bottom frame foldable connector; four operating ropes, each operating rope having a first end and a second end, for enabling the top fence rails and the bottom frame rails to respond to a movement of the bottom frame foldable connector so as to switch the foldable playpen to a folded state from an open state, the first end of an operating rope is connected to a top fence joint assembly, and the second end of an operating rope is connected to the bottom frame foldable connector. The playpen can synchronously fold the bottom frame rails and the top fence rails, and is safe and reliable.
    Type: Application
    Filed: August 28, 2015
    Publication date: October 12, 2017
    Inventor: Hongyong Mao