Patents by Inventor Difeng Cen

Difeng Cen 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: 11441301
    Abstract: A press-type overflow drainage device for water container includes a lifting control mechanism provided with an up and down movement member and a fixed component with a through hole for the movement of the up and down movement member. The lifting control mechanism provides two upper and lower stop positions. The drainage device includes a horizontal button assembly which is provided with a button, and connected with the up and down movement member through a joint member while the corresponding up and down movement member stops in the upper and lower stop positions. The button has the press-in and stop and pop-up and stop positions at the front and rear of the horizontal position. The button is located at the overflow outlet and can control the drainage device of the water container.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: September 13, 2022
    Assignee: NINGBO BOSHENG VALVE & FITTING CO., LTD CO., LTD.
    Inventor: Difeng Cen
  • Publication number: 20210180302
    Abstract: The present invention provides a press-type overflow drainage device for water container, comprising a lifting control mechanism; the lifting control mechanism is provided an up and down movement member and a fixed component with a through hole for the movement of the up and down movement member; one end of the connecting steel wire is connected with the up and down movement member, and the other end is connected with the transmission mechanism; the lifting control mechanism provides two upper and lower stop positions; the drainage device also comprises a horizontal button assembly which is provided with a button, and connected with the up and down movement member through a joint member while the corresponding up and down movement member stops in the upper and lower stop positions, and the button has the press-in and stop and pop-up and stop positions at the front and rear of the horizontal position.
    Type: Application
    Filed: June 3, 2019
    Publication date: June 17, 2021
    Inventor: Difeng CEN
  • Patent number: 9677705
    Abstract: A wall hanging fixing device includes a decoration cover which is provided with a hanging member in its inner side. The hanging member is fixed on a supporting seat in the inner side of the decoration cover with screws. The hanging member is provided with a hanging connection groove which is fit with a supporting member. The fixing device is also provided with a movable member that can move towards or away from the hanging connection groove. It is easy and quick to install the wall hanging fixing device. After an expansion bolt is fixed, the hanging member of the fixing device is hung on the expansion bolt without any disassembly, so as to protect the bathroom articles, and the hanging member can be fixed. This design effectively prevents loosening.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: June 13, 2017
    Assignee: NINGBO BOSHENG PLUMBING CO., LTD.
    Inventor: Difeng Cen
  • Patent number: 8769735
    Abstract: A drainage device for kitchen and bath facilities includes a downspout body (B1) and a pipe cover (B2). The downspout body (B1) is provided with a rotatable linkage unit capable of bending and stretching in vertical direction and a guide unit for guiding vertical movement. The pipe cover (B2) is connected with the upper end of the linkage unit, a coupling member is led out from the side wall of the downspout body (B1), one end of the coupling member is connected with the linkage unit and the other end is connected with an operating mechanism (A).
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: July 8, 2014
    Assignee: Ningbo Bosheng Plumbing Co., Ltd.
    Inventor: Difeng Cen
  • Publication number: 20130228660
    Abstract: A wall hanging fixing device includes a decoration cover which is provided with a hanging member in its inner side. The hanging member is fixed on a supporting seat in the inner side of the decoration cover with screws. The hanging member is provided with a hanging connection groove which is fit with a supporting member. The fixing device is also provided with a movable member that can move towards or away from the hanging connection groove. It is easy and quick to install the wall hanging fixing device. After an expansion bolt is fixed, the hanging member of the fixing device is hung on the expansion bolt without any disassembly, so as to protect the bathroom articles, and the hanging member can be fixed. This design effectively prevents loosening.
    Type: Application
    Filed: November 2, 2011
    Publication date: September 5, 2013
    Applicant: NingBo BoSheng Plumbing Co., Ltd.
    Inventor: Difeng Cen
  • Patent number: 8468619
    Abstract: A open/close device of washing tank drain comprises an open/close controller having a sliding shaft and a fixed sleeve, a drain plug mechanism with an open/close function mechanism, and a connecting cable between the open/close controller and the open/close function mechanism. The open/close controller has a retaining hook to be connected with the sliding shaft. A first stop position and a second stop position, which are moveably connected with the retaining hook, are set on the surface of the sliding shaft, at different height, and the first one being closer to the head of the sliding shaft than the second one. The sliding shaft is provided with a first one-way slideway and a second one-way slideway. The open/close controller also has a spring for applying a force to the sliding shaft along the direction from the head to the tail of the sliding shaft. One end of the connecting cable is connected with the sliding shaft.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: June 25, 2013
    Assignee: Ningbo Bosheng Plumbing Co., Ltd.
    Inventor: Difeng Cen
  • Patent number: 8418720
    Abstract: A water diverting device comprises an inlet, two outlets, an upper and a lower sealing seats respectively for the outlets. The device further comprises a water diverting switch that fits with the sealing seats and used to switch over the outlets. The switch includes a sliding shaft and fixed base with a sliding through hole. The switch is provided with a retaining hook for holding the sliding shaft up and down direction. On the surface of the sliding shaft, there are the first and second stop positions for the hook part of the hook, first and second unidirectional slide channels. The switch has a spring pushing the shaft from its head towards its tail. The head of the shaft connects with a valve core, and positions of the sealing seats correspond with travel of the valve core. The water discharge direction is changed over by a diverting switch.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: April 16, 2013
    Assignee: Ningbo Bosheng Plumbing Co., Ltd.
    Inventor: Difeng Cen
  • Patent number: 8403297
    Abstract: A switch for kitchen and bath appliances comprises a sliding shaft and a fixed base with a sliding through hole for the sliding shaft. The switch has a retaining hook for holding the sliding shaft. On the surface of the sliding shaft, there are a first and a second stop positions fitting with the hook part of the retaining hook. The first and second stop positions are at different height on the surface of the sliding shaft, with the first stop position close to the head of the sliding shaft. On the surface of the sliding shaft, there are the first and second unidirectional slide channels for the hook part of the retaining hook. The switch has a spring pushing the sliding shaft from head of the sliding shaft towards its tail. The switching on/off states are changed by a pressing operation.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: March 26, 2013
    Assignee: Ningbo Bosheng Plumbing Co., Ltd.
    Inventor: Difeng Cen
  • Publication number: 20110271442
    Abstract: A drainage device for kitchen and bath facilities includes a downspout body (B1) and a pipe cover (B2). The downspout body (B1) is provided with a rotatable linkage unit capable of bending and stretching in vertical direction and a guide unit for guiding vertical movement. The pipe cover (B2) is connected with the upper end of the linkage unit, a coupling member is led out from the side wall of the downspout body (B1), one end of the coupling member is connected with the linkage unit and the other end is connected with an operating mechanism (A).
    Type: Application
    Filed: December 31, 2009
    Publication date: November 10, 2011
    Inventor: Difeng Cen
  • Publication number: 20100282995
    Abstract: A open/close device of washing tank drain comprises an open/close controller having a sliding shaft and a fixed sleeve, a drain plug mechanism with an open/close function mechanism, and a connecting cable between the open/close controller and the open/close function mechanism. The open/close controller has a retaining hook to be connected with the sliding shaft. A first stop position and a second stop position, which are moveably connected with the retaining hook, are set on the surface of the sliding shaft, at different height, and the first one being closer to the head of the sliding shaft than the second one. The sliding shaft is provided with a first one-way slideway and a second one-way slideway. The open/close controller also has a spring for applying a force to the sliding shaft along the direction from the head to the tail of the sliding shaft. One end of the connecting cable is connected with the sliding shaft.
    Type: Application
    Filed: December 31, 2008
    Publication date: November 11, 2010
    Inventor: Difeng Cen
  • Publication number: 20090025813
    Abstract: This present invention provides a water diverting device. There is an inlet and two outlets in its inlet and outlet pipeline, and there is an upper sealing seat and a lower sealing seat respectively for the two outlets; the said water diverting device is provided with a water diverting switch that fits with the said sealing seats and used to switch over the two outlets. The said switch includes a sliding shaft and, fixed base, and there is a sliding through hole for the sliding shaft. The said switch is also provided with a retaining hook for holding the sliding shaft up and down direction. On the surface of the said sliding shaft, there are the first stop position and second stop position fitting with the hook part of the retaining hook, first unidirectional slide channel and second unidirectional slide channel. The said switch has a spring pushing the sliding shaft from head of the sliding shaft towards its tail.
    Type: Application
    Filed: July 21, 2008
    Publication date: January 29, 2009
    Inventor: Difeng Cen
  • Publication number: 20090026403
    Abstract: This present invention provides a switch for kitchen and bath appliances. The said switch comprises a sliding shaft and, fixed base, and there is a sliding through hole for the sliding shaft in the fixed base. The said switch is also provided with a retaining hook for holding the sliding shaft up and down direction. On the surface of the said sliding shaft, there are the first stop position and second stop position fitting with the hook part of the retaining hook. The said first stop position and second stop position are at different height on the surface of the sliding shaft, with the first stop position close to the head of the sliding shaft. On the surface of the said sliding shaft, there is the first unidirectional slide channel and second unidirectional slide channel for the hook part of the retaining hook. The said switch has a spring pushing the sliding shaft from head of the sliding shaft towards its tail.
    Type: Application
    Filed: July 21, 2008
    Publication date: January 29, 2009
    Inventor: Difeng Cen