Patents by Inventor Tong-Chang WANG

Tong-Chang 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: 12202642
    Abstract: An anti-opening container includes a first box and a second box. The first box includes a first body, a first box section and a first gripping section. The first box section is formed by the extension of the first body. The second box includes a second body, a second box section, a second gripping section, an extension section, and a fastener section. The second box section is formed by the extension of the second body. The fastener section is connected to the extension section via a perforated line. The fastener section is embedded in the first box section. When the first gripping section and the second gripping section are displaced in opposite directions, the perforated line breaks, and the first box section and the fastener section are separated from the second box section together to separate the first box and the second box.
    Type: Grant
    Filed: February 22, 2023
    Date of Patent: January 21, 2025
    Assignee: SOUTH PLASTIC INDUSTRY CO., LTD.
    Inventors: Tong-Chang Wang, Pei-Yu Wang
  • Publication number: 20240425259
    Abstract: A container for food to be heated includes a bottom surface, a sidewall, a peripheral portion, and a pressure relief protrusion. The peripheral portion includes a peripheral plane, an inner edge, an outer edge, and a pressure relief region. The pressure relief region is on the peripheral plane. The pressure relief protrusion is in the pressure relief region, and the pressure relief protrusion contacts the inner edge. The pressure relief protrusion includes a pressure relief curved surface, and the pressure relief curved surface is connected to the peripheral plane. When the peripheral plane contacts a sealing film, the pressure relief curved surface also contacts the sealing film and forms a gap between the sealing film and the junction between the pressure relief curved surface and the peripheral plane. A box having the container is also provided.
    Type: Application
    Filed: May 1, 2024
    Publication date: December 26, 2024
    Applicant: SOUTH PLASTIC INDUSTRY CO., LTD.
    Inventor: Tong-Chang WANG
  • Publication number: 20240239552
    Abstract: An anti-opening container includes a first box and a second box. The first box includes a first body, a first box section and a first gripping section. The first box section is formed by the extension of the first body. The second box includes a second body, a second box section, a second gripping section, an extension section, and a fastener section. The second box section is formed by the extension of the second body. The fastener section is connected to the extension section via a perforated line. The fastener section is embedded in the first box section. When the first gripping section and the second gripping section are displaced in opposite directions, the perforated line breaks, and the first box section and the fastener section are separated from the second box section together to separate the first box and the second box.
    Type: Application
    Filed: February 22, 2023
    Publication date: July 18, 2024
    Applicant: SOUTH PLASTIC INDUSTRY CO., LTD.
    Inventors: Tong-Chang WANG, Pei-Yu WANG
  • Publication number: 20240239562
    Abstract: An anti-opening container includes a first box and a second box. The first box includes a first body and a first box section. The first body includes a first side wall. The first box section is formed by the extension of the first side wall. The second box includes a second body, a second box section and an extension section. The second body includes a second base and a second side wall. The second box section is formed by the extension of the second side wall. When the first box and the second box are combined, the first box section is stacked on the second box section. The extension section is formed by the extension of the second side wall, and includes a fastener and a gripping section. When the fastener fits into the first fastening groove, the gripping section is located outside the first fastening groove.
    Type: Application
    Filed: February 22, 2023
    Publication date: July 18, 2024
    Applicant: SOUTH PLASTIC INDUSTRY CO., LTD.
    Inventors: Tong-Chang WANG, Pei-Yu WANG
  • Patent number: 11661248
    Abstract: A backward-folded opening-resistant container structure includes first and second casing members combinable with each other. The first casing member has an outer side to which a foldable member that includes an insertion trough and an engaging member is connected. The second casing member includes a grip portion having a notch. A break-away unit includes a planar portion connected to the notch by means of a perforation line and a fastening portion in the form of a hollow cylindrical body having an end formed with an opening connected to the planar portion. The insertion trough and the fastening portion are combinable with each other, and the foldable member is foldable to have the engaging member inserted into the opening. When the first casing member and the second casing member are separated, the perforation line is broken and the break-away unit detaches from the second casing member.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: May 30, 2023
    Assignee: SOUTH PLASTIC INDUSTRY CO., LTD.
    Inventor: Tong-Chang Wang
  • Patent number: 11655081
    Abstract: A tamper-resistant air-permeable container includes a cover having a bottom that is formed with a first wall having primary troughs and primary blocks and formed with a retaining engagement portion; and a box including a receiving space and having a second wall that is provided with a first step part lower than the second wall and a second step part lower than the first step part to define forming therebetween a retaining engagement groove. The second wall is formed with secondary troughs, each including a curved section, such that each of the secondary troughs has a curved configuration. When the cover is combined with the box, the retaining engagement portions of the cover are fit into and retained in the retaining engagement groove. The primary troughs and the secondary troughs form passages in communication with the receiving space.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: May 23, 2023
    Assignee: SOUTH PLASTIC INDUSTRY CO., LTD.
    Inventor: Tong-Chang Wang
  • Publication number: 20230010949
    Abstract: A folded opening-resistant container includes a cover body, which has an outside that is provided with a grip part, which is connected, in an inside thereof, through a perforation line to a first engaging member; and a box body, which includes a circumferentially surrounding wall and a bottom plate arranged at a bottom inside the wall. A foldable member extends from a top end of the wall. The foldable member has an end that is provided with a second engaging member. The cover body and the box body are combinable and interlockable in a detachable manner. The foldable member is curvable or flexible to allow the second engaging member to engage and combine with the first engaging member, such that when the cover body and the box body are separated, the perforation line is broken and the first engaging member and the cover body are separated from each other.
    Type: Application
    Filed: July 6, 2021
    Publication date: January 12, 2023
    Inventor: Tong-Chang Wang
  • Publication number: 20230010372
    Abstract: A backward-folded opening-resistant container structure includes first and second casing members combinable with each other. The first casing member has an outer side to which a foldable member that includes an insertion trough and an engaging member is connected. The second casing member includes a grip portion having a notch. A break-away unit includes a planar portion connected to the notch by means of a perforation line and a fastening portion in the form of a hollow cylindrical body having an end formed with an opening connected to the planar portion. The insertion trough and the fastening portion are combinable with each other, and the foldable member is foldable to have the engaging member inserted into the opening. When the first casing member and the second casing member are separated, the perforation line is broken and the break-away unit detaches from the second casing member.
    Type: Application
    Filed: October 7, 2021
    Publication date: January 12, 2023
    Inventor: Tong-Chang Wang
  • Publication number: 20220194669
    Abstract: A tamper-resistant air-permeable container includes a cover having a bottom that is formed with a first wall having primary troughs and primary blocks and formed with a retaining engagement portion; and a box including a receiving space and having a second wall that is provided with a first step part lower than the second wall and a second step part lower than the first step part to define forming therebetween a retaining engagement groove. The second wall is formed with secondary troughs, each including a curved section, such that each of the secondary troughs has a curved configuration. When the cover is combined with the box, the retaining engagement portions of the cover are fit into and retained in the retaining engagement groove. The primary troughs and the secondary troughs form passages in communication with the receiving space.
    Type: Application
    Filed: March 8, 2022
    Publication date: June 23, 2022
    Applicant: SOUTH PLASTIC INDUSTRY CO., LTD.
    Inventor: Tong-Chang WANG
  • Patent number: 11312545
    Abstract: A tamper-resistant air-permeable container includes a cover having a bottom that is formed with a first wall having primary troughs and primary blocks and formed with a retaining engagement portion; and a box including a receiving space and having a second wall that is provided with a first step part lower than the second wall and a second step part lower than the first step part to define forming therebetween a retaining engagement groove. The second wall is formed with secondary troughs, each including a curved section, such that each of the secondary troughs has a curved configuration. When the cover is combined with the box, the retaining engagement portions of the cover are fit into and retained in the retaining engagement groove. The primary troughs and the secondary troughs form passages in communication with the receiving space.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: April 26, 2022
    Assignee: SOUTH PLASTIC INDUSTRY CO., LTD.
    Inventor: Tong-Chang Wang
  • Publication number: 20210237944
    Abstract: A non-equal length open-identification container includes: a cover, one side of a top surface thereof extended with an elastic sheet having a predetermined extension length, and an end thereof having a first coupling element facing down; a box, one side of a top surface thereof horizontally extended with a flange having a notch, the flange projected with a stopping portion, and the cover adapted to be in combination with a top portion of the box, allowing a bottom surface of the sheet to be in contact with a top surface of the stopping portion; and a second coupling element, having a groove and in combination with the notch with a dotted broken line, the first coupling element offset from the groove after the cover is in combination with the box, the sheet pressed down, allowing the first coupling element to be in engagement with the groove.
    Type: Application
    Filed: January 30, 2020
    Publication date: August 5, 2021
    Inventor: Tong-Chang Wang
  • Publication number: 20210139206
    Abstract: A tamper-resistant air-permeable container includes a cover having a bottom that is formed with a first wall having primary troughs and primary blocks and formed with a retaining engagement portion; and a box including a receiving space and having a second wall that is provided with a first step part lower than the second wall and a second step part lower than the first step part to define forming therebetween a retaining engagement groove. The second wall is formed with secondary troughs, each including a curved section, such that each of the secondary troughs has a curved configuration. When the cover is combined with the box, the retaining engagement portions of the cover are fit into and retained in the retaining engagement groove. The primary troughs and the secondary troughs form passages in communication with the receiving space.
    Type: Application
    Filed: September 28, 2020
    Publication date: May 13, 2021
    Inventor: Tong-Chang Wang
  • Publication number: 20200198847
    Abstract: A water vapor guide cover includes: a cover body, including a convex top portion and edge portion, the convex top portion configured with a first peripheral wall, the first peripheral wall configured with guiding grooves, a bottom of the first peripheral wall extended outward with a groove, the groove in combination with the edge portion, further configured with a second peripheral wall, and the second peripheral wall configured with stoppers; and a box body, including a bottom portion and a third peripheral wall configured on the bottom portion, the third peripheral wall extended outward with a platform portion, inner, outer sides of the platform portion respectively configured with first, second step portions, the edge portion in contact with the platform portion, the groove positioned above the first step portion, each stopper pressed against the second step portion, and each guiding groove positioned above an inside of the box body.
    Type: Application
    Filed: December 25, 2018
    Publication date: June 25, 2020
    Inventor: Tong-Chang Wang
  • Publication number: 20190367228
    Abstract: A push type exhaust cover, includes: a first cover body, configured with at least one through hole; and a second cover body, one side thereof in combination with one side of the through hole, a curved line configured between the second cover body and the through hole, a periphery of the second cover body in combination with a periphery of the through hole with a dotted broken line, an engagement portion projected from a top surface of the second cover body, pressing the engagement portion down causing the dotted broken line of the second cover body to be broken to fall into the through hole, allowing a top end of the engagement portion to press against another side of the through hole to make the through hole to be in communication with the outside so as to achieve an exhaust effect.
    Type: Application
    Filed: June 4, 2018
    Publication date: December 5, 2019
    Inventor: Tong-Chang Wang
  • Patent number: 9828149
    Abstract: A tamper-evident container generally includes a tray having an opening with a step section formed around the opening and including a first protrusion section that is provided with a first coupling unit with a first perforation line formed therebetween. The first coupling unit includes a coupling trough. A cover includes a concave groove having a bottom and an outside surface engageable with the step section to close the opening. The cover includes a second protrusion section and a second coupling unit between which a second perforation line is formed and projecting beyond the first perforation line. The second coupling unit has a coupling member receivable in and engageable with the coupling trough. Tearing off the first and second perforation lines allows the first and second coupling units to detach from the tray and the cover, respectively with the second protrusion section projecting outside the tray for easy gripping.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: November 28, 2017
    Assignee: SOUTH PLASTIC INDUSTRY CO., LTD.
    Inventor: Tong-Chang Wang
  • Publication number: 20170121080
    Abstract: A tamper-evident container generally includes a tray having an opening with a step section formed around the opening and including a first protrusion section that is provided with a first coupling unit with a first perforation line formed therebetween. The first coupling unit includes a coupling trough. A cover includes a concave groove having a bottom and an outside surface engageable with the step section to close the opening. The cover includes a second protrusion section and a second coupling unit between which a second perforation line is formed and projecting beyond the first perforation line. The second coupling unit has a coupling member receivable in and engageable with the coupling trough. Tearing off the first and second perforation lines allows the first and second coupling units to detach from the tray and the cover, respectively with the second protrusion section projecting outside the tray for easy gripping.
    Type: Application
    Filed: January 12, 2017
    Publication date: May 4, 2017
    Inventor: Tong-Chang Wang
  • Patent number: 9592937
    Abstract: Disclosed is a tamper-evident container for food storage that uses a round male to female post lock on a single corner. After the cover is locked to the tray base, it requires breaking the corner tray tab to open the container. This tab tear off provides positive evidence of container opening to indicate the container has been opened or tampered with.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: March 14, 2017
    Assignee: SOUTH PLASTIC INDUSTRY CO., LTD.
    Inventor: Tong-Chang Wang
  • Publication number: 20170057706
    Abstract: Disclosed is a tamper-evident container for food storage that uses a round male to female post lock on a single corner. After the cover is locked to the tray base, it requires breaking the corner tray tab to open the container. This tab tear off provides positive evidence of container opening to indicate the container has been opened or tampered with.
    Type: Application
    Filed: September 2, 2015
    Publication date: March 2, 2017
    Inventor: Tong-Chang Wang
  • Publication number: 20160185490
    Abstract: A container with an opening recognizable function includes a cover and a case, where the cover is in liftable connection with the case and capable of closing the case; it is characterized in that the cover 1 has a cover edge 11 convenient for lifting the cover extended from the connection position of the cover and case, and the two sides of the cover edge are respectively configured with dotted broken cuts, thereby forming the container with an opening recognizable function capable of discovering whether the container is opened or not as soon as possible and preventing the container from being opened as one pleases because of the opening recognizable function thereof, thereby decreasing the possibility of food deterioration and further keeping foods therein fresh.
    Type: Application
    Filed: December 30, 2014
    Publication date: June 30, 2016
    Inventor: Tong-Chang Wang
  • Publication number: 20150239612
    Abstract: The present invention is related to a multilayer container structure including a first container, at its first opening circumference having a first connecting part on which first and second securing slots are provided at upper and lower location respectively, a second container, at its second opening circumference having a second connecting part and a snap slot inside a storing room, and a lid, provided with a protrusion, a third connecting part at its periphery and a plurality of first protrusive snap latch besides the protrusion. Thereby the second connecting part of the second container can attach to the first securing slot of the first container for placing the former inside the later. The third connecting part of the lid can attach to either the second securing slot of the first container or the snap slot of the second container for placing it above the lid.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 27, 2015
    Applicant: South Plastic Industry Co., Ltd.
    Inventor: Tong-Chang Wang