US20090302043A1 - Wash-free dinnerware with surface-mounted insulating layer - Google Patents

Wash-free dinnerware with surface-mounted insulating layer Download PDF

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Publication number
US20090302043A1
US20090302043A1 US12/136,068 US13606808A US2009302043A1 US 20090302043 A1 US20090302043 A1 US 20090302043A1 US 13606808 A US13606808 A US 13606808A US 2009302043 A1 US2009302043 A1 US 2009302043A1
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United States
Prior art keywords
dinnerware
wash
free
insulating layer
thermoplastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/136,068
Inventor
Yao Ming Yang
Kuan Yang Chen
Pi Chen Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LIANZHUN Tech Corp
Mr Kuan Yang Chen
Mr Yao Ming Yang
Yang Yao Ming
Original Assignee
LIANZHUN Tech Corp
Mr Kuan Yang Chen
Mr Yao Ming Yang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LIANZHUN Tech Corp, Mr Kuan Yang Chen, Mr Yao Ming Yang filed Critical LIANZHUN Tech Corp
Priority to US12/136,068 priority Critical patent/US20090302043A1/en
Assigned to CHEN, KUAN YANG, YANG, YAO MING, LIANZHUN TECHNOLOGY CORPORATION reassignment CHEN, KUAN YANG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, KUAN YANG, CHEN, PI CHEN, YANG, YAO MING
Publication of US20090302043A1 publication Critical patent/US20090302043A1/en
Abandoned legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47GHOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00Table service

Abstract

The present invention provides a wash-free dinnerware, which is characterized in that, the surface of the wash-free dinnerware is provided with an insulating layer made of food-grade, high-temperature thermoplastic or thermosetting plastic materials; the insulating layer is formed onto the surface of wash-free dinnerware by means of thermal shrinkage, or immersion or blowing. So, the insulating layer could prevent direct contact of wash-free dinnerware with food.

Description

    BACKGROUND OF THE INVENTION
  • The present invention relates generally to a wash-free dinnerware, and more particularly to an innovative one which is designed with a surface-mounted insulating layer.
  • As more and more people get used to eating out, there is a growing consumption of wash-free dinnerware. However, the commonly used wash-free dinnerware may cause physical discomfort or pathological change since they're often bleached through sulfur or hydrogen peroxide and then sun-cured or dried up. In this way, non-disinfected but fiberized composition is shaped within the chopsticks, and microporous cross-section can be visibly observed if the chopsticks are broken; the sulfur or hydrogen peroxide left in the micropores cannot be filtered, but releases Sulfur Dioxide if hot food is contacted, which will enter into the human body along with the food, leading to possible physical discomfort or even lymphatic cancer. For example, Biphenyl and preservative agent were discovered by the regulatory bodies from random inspection of imported wash-free chopsticks. In the event of intake of numerous preservative agent, it is possible to stimulate the respiratory system and cause nausea, vomiting, drowsiness and liver injury, or coughing or breathing problem; long-term inhalation will lead to cirrhosis, neuropathy and brain lesions, posing a serious hazard against health. Moreover, the dinnerware carried by the consumer shall also be cleaned up to prevent the multiplication of bacteria. So, the practitioners shall make more efforts to offer clean wash-free dinnerware for the sake of the consumers.
  • Thus, to overcome the aforementioned problems of the prior art, it would be an advancement if the art to provide an improved structure that can significantly improve the efficacy.
  • Therefore, the inventor has provided the present invention of practicability after deliberate design and evaluation based on years of experience in the production, development and design of related products.
  • BRIEF SUMMARY OF THE INVENTION
  • The primary objective of the present invention is to provide a wash-free dinnerware with a surface-mounted insulating layer, which is made of food-grade, high-temperature thermoplastic or thermosetting plastic materials. The insulating layer is formed onto the surface of wash-free dinnerware by means of thermal shrinkage or immersion, or blown and then adapted onto the surface of wash-free dinnerware. When the wash-free dinnerware is used, the insulating layer could prevent direct contact of wash-free dinnerware and food, thereby improving the sanitation of diet and safeguarding the human health.
  • Another objective of the present invention is to provide a wash-free dinnerware of different shapes or dimensions, which is also designed with a surface-mounted insulating layer.
  • To sum up, the present invention of simple structural design is expected to meet the desired performance and highlight the novelty and progress of this claim. The features and the advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of a preferred embodiment of the present invention with reference to the accompanying drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 depicts a schematic view of a preferred embodiment of the present invention.
  • FIG. 2 depicts a schematic view of second preferred embodiment of the present invention.
  • FIG. 3 depicts a schematic view of third preferred embodiment of the present invention.
  • DETAILED DESCRIPTION OF THE INVENTION Embodiment 1
  • FIG. 1 depicts a preferred embodiment of the present invention, wherein an insulating layer is formed on the surface of the wash-free dinnerware; and the insulating layer is made of food-grade, high-temperature thermoplastic materials; moreover, the insulating layer 12 is molded directly onto the surface of wash-free dinnerware 10 by thermal shrinkage method. This method comprises the following steps:
  • a. Preform the thermoplastic material into a crude embryo 11 with the same shape of wash-free dinnerware 10;
  • b. Sleeve the crude embryo 11 onto the surface of the wash-free dinnerware 10;
  • c. Heat up the wash-free dinnerware 10 for thermal shrinkage, until the crude embryo 11 is fully mated with the wash-free dinnerware 10.
  • Embodiment 2
  • FIG. 2 depicts the second preferred embodiment of the present invention, wherein an insulating layer is formed on the surface of the wash-free dinnerware; and the insulating layer is made of food-grade, high-temperature thermoplastic or thermosetting plastic materials. The insulating layer 12 is formed onto the surface of wash-free dinnerware 10 by means of immersion. This method comprises the following steps:
  • a. Select liquid thermoplastic or thermosetting plastic materials, and place into a plastic trough 20;
  • b. Immerse the wash-free dinnerware 10 into the plastic trough 20 and then take out;
  • c. Place the wash-free dinnerware 10 attached with liquid thermoplastic or thermosetting plastic materials into a rotary baking equipment, and conduct surface homogenization and curing process.
  • Embodiment 3
  • FIG. 3 depicts the third preferred embodiment of the present invention, wherein the insulating layer of wash-free dinnerware is made of food-grade, high-temperature thermoplastic or thermosetting plastic materials; and the insulating layer is blown and then adapted onto the surface of wash-free dinnerware. This method comprises the following steps:
  • a. Select male and female moulds 30, 31 wherein preformed grooves 301, 311 are arranged symmetrically; after closing the male and female moulds 30, 31, the symmetrical grooves 301, 311 form a hollow chamber, and an interface 32 linking the hollow chamber to external environment is shaped at one end; the shape of hollow chamber conforms to that of wash-free dinnerware;
  • b. Connect a nozzle 33 with the interface 32; liquid thermoplastic or thermosetting plastic materials exist in the nozzle 33; high-pressure air is charged at the other end of the nozzle 33, so that the liquid thermoplastic or thermosetting plastic materials are filled into the hollow chamber shaped from the male and female moulds 30, 31;
  • c. Open and strip the mould after curing of liquid thermoplastic or thermosetting plastic materials in the hollow chamber of male and female moulds 30, 31.
  • The insulating layer 12 could be selectively sleeved onto the surface of the wash-free dinnerware.
  • Based on aforementioned embodiments, the wash-free dinnerware of the present invention could be designed with a surface-mounted insulating layer, which can prevent direct contact of wash-free dinnerware with food; the insulating layer is also of a film structure made from food-grade, high-temperature thermoplastic or thermosetting plastic materials.
  • To sum up, the wash-free dinnerware with an insulating layer could realize its efficacy through above-specified embodiments; and the present invention isn't published or utilized openly before submitting the Claims in line with the novelty and progress of inventions.
  • Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.

Claims (10)

1. A wash-free dinnerware with a surface-mounted insulating layer, wherein the insulating layer could prevent direct contact of wash-free dinnerware with food.
2. The structure defined in claim 1, wherein said insulating layer is a film structure.
3. The structure defined in claim 1, wherein said insulating layer is made of thermoplastic or thermosetting plastic materials.
4. The structure defined in claim 3, wherein said thermoplastic or thermosetting plastic materials are selected from food-grade, high-temperature plastics.
5. The structure defined in claim 1, wherein said insulating layer is selected from food-grade, high-temperature thermoplastic material, and formed onto the surface of wash-free dinnerware by means of thermal shrinkage.
6. The structure defined in claim 5, wherein the thermal shrinkage comprises the following steps:
a. Preform the thermoplastic material into a crude embryo with the same shape of wash-free dinnerware;
b. Sleeve the crude embryo onto the surface of the wash-free dinnerware;
c. Heat up the wash-free dinnerware for thermal shrinkage, until the crude embryo is fully mated with the wash-free dinnerware.
7. The structure defined in claim 1, wherein said insulating layer is selected from food-grade, high-temperature thermoplastic material, and formed onto the surface of wash-free dinnerware by means of immersion.
8. The structure defined in claim 7, wherein the immersion method comprises the following steps:
a. Select liquid thermoplastic or thermosetting plastic materials, and place into a plastic trough;
b. Immerse the wash-free dinnerware into the plastic trough and then take out;
c. Place the wash-free dinnerware attached with liquid thermoplastic or thermosetting plastic materials into a rotary baking equipment, and conduct surface homogenization and curing process.
9. The structure defined in claim 1, wherein said insulating layer is selected from food-grade, high-temperature thermoplastic or thermosetting plastic material, and formed onto the surface of wash-free dinnerware by means of blowing.
10. The structure defined in claim 9, wherein the blowing method comprises the following steps:
a. Select male and female moulds wherein preformed grooves are arranged symmetrically; after closing the male and female moulds, the symmetrical grooves form a hollow chamber, and an interface linking the hollow chamber to external environment is shaped at one end; the shape of hollow chamber conforms to that of wash-free dinnerware;
b. Connect a nozzle with the interface; liquid thermoplastic or thermosetting plastic materials exist in the nozzle; high-pressure air is charged at the other end of the nozzle, so that the liquid thermoplastic or thermosetting plastic materials are filled into the hollow chamber shaped from the male and female moulds;
c. Open and strip the mould after curing of liquid thermoplastic or thermosetting plastic materials in the hollow chamber of male and female moulds.
US12/136,068 2008-06-10 2008-06-10 Wash-free dinnerware with surface-mounted insulating layer Abandoned US20090302043A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/136,068 US20090302043A1 (en) 2008-06-10 2008-06-10 Wash-free dinnerware with surface-mounted insulating layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/136,068 US20090302043A1 (en) 2008-06-10 2008-06-10 Wash-free dinnerware with surface-mounted insulating layer

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170196387A1 (en) * 2016-01-09 2017-07-13 Dang Minh Tran Self-Elevating Chopsticks

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1574259A (en) * 1924-02-27 1926-02-23 Austin O Sarff Shell dish
US2542413A (en) * 1947-02-11 1951-02-20 Jr Ernest A Ibsch Laminated vessel
US2768736A (en) * 1953-01-05 1956-10-30 Laura E Govoni Thermometer covers
US3076579A (en) * 1959-12-24 1963-02-05 Arthur L Kuhlman Dish liners
US4250215A (en) * 1979-02-26 1981-02-10 General Housewares Corp. Cooking utensil with non-stick cooking surface
US4828134A (en) * 1987-11-02 1989-05-09 William Ferlanti Layered cooking vessel
US5046633A (en) * 1990-01-18 1991-09-10 Chung Chin Fu Structure of rice bowl
US5269717A (en) * 1992-11-12 1993-12-14 Genin Trudeau Dishware having a liquid-filled rim and eating implements
US5368183A (en) * 1993-04-23 1994-11-29 Singer; Stuart H. Meal tray system
US6398060B1 (en) * 2000-10-20 2002-06-04 John K. Apostolides Protective apparatus for cookware
US6431389B1 (en) * 2000-07-27 2002-08-13 Wki Holding Company, Inc. Composite bowl
US20040173476A1 (en) * 2001-07-30 2004-09-09 Letourneau Ronald G Holding device for a solar-powered thermometer
US7204202B2 (en) * 2005-06-10 2007-04-17 Behun William G Pet dish and disposable liner
US20070220750A1 (en) * 2006-03-27 2007-09-27 Chi-Gen Hu Stainless Steel Chopstick Set
US7320292B1 (en) * 2007-03-16 2008-01-22 Salvatore Ferrantelli Pet feeding system and method of use
US7392761B2 (en) * 2005-03-08 2008-07-01 John Arthur Kujawa Pet dish dispenser with disposable inserts
US20090050515A1 (en) * 2007-08-22 2009-02-26 Yao-Ming Yang Sterilized disposal cap for dinner set

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1574259A (en) * 1924-02-27 1926-02-23 Austin O Sarff Shell dish
US2542413A (en) * 1947-02-11 1951-02-20 Jr Ernest A Ibsch Laminated vessel
US2768736A (en) * 1953-01-05 1956-10-30 Laura E Govoni Thermometer covers
US3076579A (en) * 1959-12-24 1963-02-05 Arthur L Kuhlman Dish liners
US4250215A (en) * 1979-02-26 1981-02-10 General Housewares Corp. Cooking utensil with non-stick cooking surface
US4828134A (en) * 1987-11-02 1989-05-09 William Ferlanti Layered cooking vessel
US5046633A (en) * 1990-01-18 1991-09-10 Chung Chin Fu Structure of rice bowl
US5269717A (en) * 1992-11-12 1993-12-14 Genin Trudeau Dishware having a liquid-filled rim and eating implements
US5368183A (en) * 1993-04-23 1994-11-29 Singer; Stuart H. Meal tray system
USRE39391E1 (en) * 2000-07-27 2006-11-14 Helen Of Troy Limited Composite bowl
US6431389B1 (en) * 2000-07-27 2002-08-13 Wki Holding Company, Inc. Composite bowl
US6398060B1 (en) * 2000-10-20 2002-06-04 John K. Apostolides Protective apparatus for cookware
US20040173476A1 (en) * 2001-07-30 2004-09-09 Letourneau Ronald G Holding device for a solar-powered thermometer
US7392761B2 (en) * 2005-03-08 2008-07-01 John Arthur Kujawa Pet dish dispenser with disposable inserts
US7204202B2 (en) * 2005-06-10 2007-04-17 Behun William G Pet dish and disposable liner
US7441514B2 (en) * 2005-06-10 2008-10-28 Gail Dana Pet dish and disposable liner
US20070220750A1 (en) * 2006-03-27 2007-09-27 Chi-Gen Hu Stainless Steel Chopstick Set
US7320292B1 (en) * 2007-03-16 2008-01-22 Salvatore Ferrantelli Pet feeding system and method of use
US20090050515A1 (en) * 2007-08-22 2009-02-26 Yao-Ming Yang Sterilized disposal cap for dinner set

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170196387A1 (en) * 2016-01-09 2017-07-13 Dang Minh Tran Self-Elevating Chopsticks
US10058202B2 (en) * 2016-01-09 2018-08-28 Dang Minh Tran Self-elevating chopsticks

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AS Assignment

Owner name: LIANZHUN TECHNOLOGY CORPORATION, TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YANG, YAO MING;CHEN, KUAN YANG;CHEN, PI CHEN;REEL/FRAME:021068/0757

Effective date: 20080428

Owner name: YANG, YAO MING, TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YANG, YAO MING;CHEN, KUAN YANG;CHEN, PI CHEN;REEL/FRAME:021068/0757

Effective date: 20080428

Owner name: CHEN, KUAN YANG, TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YANG, YAO MING;CHEN, KUAN YANG;CHEN, PI CHEN;REEL/FRAME:021068/0757

Effective date: 20080428

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION