Patents by Inventor DeChang Li

DeChang Li 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: 11680395
    Abstract: An apron sink kit is provided for installing an apron sink in a pre-existing cabinet. The sink includes at least one basin with rims extending outward from the top edges of the left and right walls and the front and back walls. An apron extends downward from the outer edge of the front wall rim and for a selected length along the sides of the sink. The sink is vertically supported by a cabinet rail under the apron and by the back and side edges of the counter top for top mounting or mounting underneath a cabinet top.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: June 20, 2023
    Assignee: Compass Manufacturing International, LLC
    Inventor: DeChang Li
  • Publication number: 20230146089
    Abstract: The invention describes a quick install lift rod pop-up sink drain assembly comprising a drain body, a drain plug, a horizontal pivot rod used as a lever for raising and lowering the drain plug, a lock ring which rotatably secures the horizontal pivot rod to the drain body, and a lift rod rotatably connected to the outer free end of the horizontal pivot rod and used to raise or lower the free end of the horizontal pivot rod. A spherical portion of the horizontal pivot rod is rotatably captured inside a free end of a connector which is integral with the drain body and which contains pawls which capture the spherical portion of the rod and allow up and down movement of the rod with respect to the drain body, causing the drain plug to open and close.
    Type: Application
    Filed: July 19, 2022
    Publication date: May 11, 2023
    Inventors: Ken Sapp, DeChang Li
  • Publication number: 20230148123
    Abstract: A drain control assembly having a pop-up stopper controlled by a cam actuating mechanism allowing the stopper to alternately seal and unseat from the drain opening by pressing down on the stopper. Actuator guide rings extending from vertical fins and tabs are used to align and removably secure the actuator in position within the drain pipe. The stopper seal seats against the sink housing the drain providing a water tight seal. The assembly has a removable catch screen to retain items fallen into the drain. The stopper and actuator assembly can be dislodged and the entire assembly removed and items in the catch screen can be retrieved or the actuator removed for cleaning. The assembly can then be reinstalled by simply inserting it down into the drain.
    Type: Application
    Filed: August 16, 2022
    Publication date: May 11, 2023
    Inventors: Ken Sapp, DeChang Li
  • Publication number: 20230111926
    Abstract: Sinks have an integral drain overflow protection or a conventional overflow port but not both. Conventional drain assemblies have a body comprising a hollow cylinder having either solid upper body portion or an upper body sidewall portion including an opening. The present invention defines a drain assembly having an upper body sidewall portion including a knock out blank which may be left in place or knocked out for use with either type of sink. A knock-out band can be used in combination with the knock-out drain assembly body to be positioned over the knocked out body hole providing a water tight seal should the user chooses to use the knocked out drain assembly in a sink having a conventional overflow port.
    Type: Application
    Filed: July 25, 2022
    Publication date: April 13, 2023
    Inventors: Ken Sapp, DeChang Li
  • Publication number: 20230078805
    Abstract: A drain body used to connect a sink drain to drainage pipes for use with sinks having integral overflow protection and sinks with conventional overflow ports. The drain body comprises a hollow cylinder with an upper flange including an upper sidewall portion defining a knock out blank which may be left in place or may be easily removed, thus providing a hole through which the overflow water which is carried through an integral tunnel in the sidewall routed to the bottom drain port of the drain body sinks versus a conventional overflow port. Because sinks having no integral tunnel for draining overflow water require a solid drain body, the user would simply leave the upper sidewall portion intact in order to use the drain with overflow knock-out blank drain body.
    Type: Application
    Filed: May 26, 2022
    Publication date: March 16, 2023
    Inventors: Ken Sapp, DeChang Li
  • Publication number: 20220228622
    Abstract: A faucet mounting structure includes a threaded pipe and a threaded lock nut. The quick tighten and release adjustable lock nut includes a separate upper main body and a lower main which snap fit together. The upper main body includes downward extending lugs with inward facing threads which are urged against the outward facing threads of a faucet pipe to hold the pipe and thus, hold the faucet in a fixed position on a counter top. The downward extending lugs are captured in canted arcuate recesses in the lower main body.
    Type: Application
    Filed: December 3, 2021
    Publication date: July 21, 2022
    Inventors: Ken Sapp, DeChang Li
  • Patent number: 11118331
    Abstract: A valve body for a shower, a bathtub, or a shower-bathtub installations. The valve body includes nipples for direct connection to PEX water supply lines and the shower head outlet, a bathtub faucet tapered nipple which is a universal outlet with male NPT threads to which a copper line can either be threaded, soldered or a slip or friction fit with a hose retainer clip and hot and cold adjustable limiters and standoffs on the rear side for installation of the valve body to a backer board. The standoff lug spacer means provide for precise spacing of the plumbing connections within the wall with respect to the front surface of the wall board. The standoffs also provide clearance between the plumbing connections and the backer board. The valve body accepts various back to back functional type pressure balanced cartridges for control of water flow through the faucet.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: September 14, 2021
    Assignee: Compass Manufacturing International, LLC
    Inventor: DeChang Li
  • Publication number: 20200102727
    Abstract: An apron sink kit is provided for installing an apron sink in a pre-existing cabinet. The sink includes at least one basin with rims extending outward from the top edges of the left and right walls and the front and back walls. An apron extends downward from the outer edge of the front wall rim and for a selected length along the sides of the sink. The sink is vertically supported by a cabinet rail under the apron and by the back and side edges of the counter top for top mounting or mounting underneath a cabinet top.
    Type: Application
    Filed: September 3, 2019
    Publication date: April 2, 2020
    Inventor: DeChang Li
  • Publication number: 20190085539
    Abstract: A valve body for a shower, a bathtub, or a shower-bathtub installations. The valve body includes nipples for direct connection to PEX water supply lines and the shower head outlet, a bathtub faucet tapered nipple which is a universal outlet with male NPT threads to which a copper line can either be threaded, soldered or a slip or friction fit with a hose retainer clip and hot and cold adjustable limiters and standoffs on the rear side for installation of the valve body to a backer board. The standoff lug spacer means provide for precise spacing of the plumbing connections within the wall with respect to the front surface of the wall board. The standoffs also provide clearance between the plumbing connections and the backer board. The valve body accepts various back to back functional type pressure balanced cartridges for control of water flow through the faucet.
    Type: Application
    Filed: August 13, 2018
    Publication date: March 21, 2019
    Inventor: DeChang Li
  • Patent number: D914170
    Type: Grant
    Filed: September 29, 2018
    Date of Patent: March 23, 2021
    Assignee: Compass Manufacturing International, LLC
    Inventors: DeChang Li, Ken Sapp
  • Patent number: D918352
    Type: Grant
    Filed: September 29, 2018
    Date of Patent: May 4, 2021
    Assignee: Compass Manufacturing International, LLC
    Inventors: DeChang Li, Ken Sapp