Patents by Inventor Ling-Da WANG

Ling-Da WANG 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: 11447303
    Abstract: The present Utility Model discloses a flip cover for wet wipes, comprising an upper flip cover and a lower drawing cover, wherein the lower drawing cover is provided with a drawing port, the upper flip cover comprises a fixing cover, a flip cover and a connecting elastic bar, the two ends of the connecting elastic bar are connected with the fixing cover and the flip cover, respectively, the lower surface of the fixing cover is provided with a downward convex insert strip, and the fixing cover is connected to the lower drawing cover through the insert strip; the front end of the flip cover is provided with an internally concave upper clipping strip and is elastically engaged with the lower drawing cover through the clipping strip; the upper surface of the connecting elastic bar is provided with convex strips which are extruded from the upper surface of the connecting elastic bar and are supported against the upper edge of the slot of the fixing cover after the flip cover is turned to a certain angle; when the
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: September 20, 2022
    Assignee: TOP GREEN WORLD PACKAGING CO., LTD.
    Inventor: Ling-da Wang
  • Patent number: 11180276
    Abstract: The Utility Model discloses a barrel with reinforced barrel rim, comprising a barrel body, and a barrel rim upwards extending along the barrel body, wherein a clamping strip extruded from the barrel rim is set around the barrel rim on four sides, the four sides of the barrel rim above the clamping strip are inclined towards the center of the barrel rim, and when the angle between the clamping strip and the four sides of the barrel rim is defined to be A, A is greater than 90° and less than or equal to 135°. The barrel rim in this patent application is reinforced, the inclination design provides the barrel rim the guiding function that when the barrel cover is hung at the barrel rim on the production line, the barrel cover can fall towards the barrel rim along the inclination in a correct way so as to be convenient for the following press; besides, the inclination of the barrel rim can separate the stress of the barrel rim so that the barrel rim can bear more pressure and hardly be deformed when being pressed.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: November 23, 2021
    Assignee: TOP GREEN WORLD PACKAGING CO, LTD.
    Inventor: Ling-da Wang
  • Publication number: 20210339922
    Abstract: The Utility Model discloses a reinforced sealing barrel cover, comprising a flip barrel cover and a cover body, a clamping strip is extruded around the inner wall of the cover body, a sealing strip is set around the inner side of the cover body and above the clamping strip, and when the cover body and the barrel rim are pressed together, the sealing strip is tightly attached to the outer side of the barrel rim. The reinforced sealing barrel cover in this application can realize the sealing of the barrel cover and the barrel body under the condition of maintaining the structural advantages of the existing barrel cover and the barrel body.
    Type: Application
    Filed: May 7, 2020
    Publication date: November 4, 2021
    Inventor: Ling-da WANG
  • Publication number: 20210339903
    Abstract: The Utility Model discloses a barrel with reinforced barrel rim, comprising a barrel body, and a barrel rim upwards extending along the barrel body, wherein a clamping strip extruded from the barrel rim is set around the barrel rim on four sides, the four sides of the barrel rim above the clamping strip are inclined towards the center of the barrel rim, and when the angle between the clamping strip and the four sides of the barrel rim is defined to be A, A is greater than 90° and less than or equal to 135°. The barrel rim in this patent application is reinforced, the inclination design provides the barrel rim the guiding function that when the barrel cover is hung at the barrel rim on the production line, the barrel cover can fall towards the barrel rim along the inclination in a correct way so as to be convenient for the following press; besides, the inclination of the barrel rim can separate the stress of the barrel rim so that the barrel rim can bear more pressure and hardly be deformed when being pressed.
    Type: Application
    Filed: May 7, 2020
    Publication date: November 4, 2021
    Inventor: Ling-da WANG
  • Publication number: 20200299037
    Abstract: The present Utility Model discloses a flip cover for wet wipes, comprising an upper flip cover and a lower drawing cover, wherein the lower drawing cover is provided with a drawing port, the upper flip cover comprises a fixing cover, a flip cover and a connecting elastic bar, the two ends of the connecting elastic bar are connected with the fixing cover and the flip cover, respectively, the lower surface of the fixing cover is provided with a downward convex insert strip, and the fixing cover is connected to the lower drawing cover through the insert strip; the front end of the flip cover is provided with an internally concave upper clipping strip and is elastically engaged with the lower drawing cover through the clipping strip; the upper surface of the connecting elastic bar is provided with convex strips which are extruded from the upper surface of the connecting elastic bar and are supported against the upper edge of the slot of the fixing cover after the flip cover is turned to a certain angle; when the
    Type: Application
    Filed: March 18, 2020
    Publication date: September 24, 2020
    Inventor: Ling-da WANG
  • Patent number: 10472141
    Abstract: A film type wet tissue tube, comprising a wet tissue cover and a wet tissue bag. The wet tissue bag is made of plastic film and hermetically connected below the wet tissue cover in a replaceable manner. By replacing existing injection molding tubes with the wet tissue bag made of plastic film, wet tissue bags of different types can be connected and replaced with the same wet tissue cover as a bag mouth of the wet tissue bag can be adjusted at the time of connection according to the size of the wet tissue cover. This meets the needs of users to change wet tissue bags at any time. This is both environmentally friendly and economical. The plastic film has low cost and thus lowers costs of raw materials and costs in the wet tissue manufacturing process, making the product more competitive in the market.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: November 12, 2019
    Assignee: TOP GREEN WORLD PACKAGING CO., LTD.
    Inventor: Ling-da Wang
  • Patent number: 10472135
    Abstract: The utility model discloses an anti-glue overflow wet tissue box cover, comprising a cover body and an upper cover surface connected with the cover body. A glue overflow groove depressed upward is arranged on a lower surface of the cover body, and excessive overflow fixture flows into a means inside the glue overflow groove when the wet tissue box cover is fixed to a wet tissue bag with glue or other fixtures. The anti-glue overflow wet tissue box cover of the application has a simple structure and strong practicability, and the glue overflow groove thereon can effectively avoid overflow of solid glue when the wet tissue box cover is installed.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: November 12, 2019
    Assignee: Top Green World Packaging Co., Ltd.
    Inventor: Ling-Da Wang
  • Patent number: 10322854
    Abstract: The invention discloses a quick-detachable and replaceable wet tissue flap cover, comprising an upper flap cover and a lower withdrawal cover, a hinge structure is arranged at a joint between said upper flap cover and said lower withdrawal cover, a clamping slot connected with said hinge structure is arranged at the joint between said lower withdrawal cover and said upper flap cover, said clamping slot is elastically clamped with said hinge structure, and said upper flap cover is reversibly open and closed relative to said lower withdrawal cover. The quick-detachable and replaceable wet tissue flap cover of the invention has the advantages of simple structure and convenient use, guaranteeing the tightness, safety and hygiene, and avoiding bacteria breeding and moisture loss of wet tissues.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: June 18, 2019
    Assignee: TOP GREEN WORLD PACKAGING CO., LTD.
    Inventor: Ling-da Wang
  • Publication number: 20190177056
    Abstract: A film type wet tissue tube, comprising a wet tissue cover and a wet tissue bag. The wet tissue bag is made of plastic film and hermetically connected below the wet tissue cover in a replaceable manner. By replacing existing injection molding tubes with the wet tissue bag made of plastic film, wet tissue bags of different types can be connected and replaced with the same wet tissue cover as a bag mouth of the wet tissue bag can be adjusted at the time of connection according to the size of the wet tissue cover. This meets the needs of users to change wet tissue bags at any time. This is both environmentally friendly and economical. The plastic film has low cost and thus lowers costs of raw materials and costs in the wet tissue manufacturing process, making the product more competitive in the market.
    Type: Application
    Filed: May 2, 2018
    Publication date: June 13, 2019
    Inventor: Ling-da WANG
  • Publication number: 20190161252
    Abstract: The invention discloses a quick-detachable and replaceable wet tissue flap cover, comprising an upper flap cover and a lower withdrawal cover, a hinge structure is arranged at a joint between said upper flap cover and said lower withdrawal cover, a clamping slot connected with said hinge structure is arranged at the joint between said lower withdrawal cover and said upper flap cover, said clamping slot is elastically clamped with said hinge structure, and said upper flap cover is reversibly open and closed relative to said lower withdrawal cover. The quick-detachable and replaceable wet tissue flap cover of the invention has the advantages of simple structure and convenient use, guaranteeing the tightness, safety and hygiene, and avoiding bacteria breeding and moisture loss of wet tissues.
    Type: Application
    Filed: April 6, 2018
    Publication date: May 30, 2019
    Inventor: Ling-da WANG
  • Publication number: 20190077552
    Abstract: The utility model discloses an anti-glue overflow wet tissue box cover, comprising a cover body and an upper cover surface connected with the cover body. A glue overflow groove depressed upward is arranged on a lower surface of the cover body, and excessive overflow fixture flows into a means inside the glue overflow groove when the wet tissue box cover is fixed to a wet tissue bag with glue or other fixtures. The anti-glue overflow wet tissue box cover of the application has a simple structure and strong practicability, and the glue overflow groove thereon can effectively avoid overflow of solid glue when the wet tissue box cover is installed.
    Type: Application
    Filed: December 28, 2017
    Publication date: March 14, 2019
    Inventor: Ling-Da WANG