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US 7,966,787 B2Granted
Vacuum device and method for packaging same
AssigneesTsinghua University, Hon Hai Precision Industry Co., Ltd.
InventorsCai-Lin Guo, Peng Liu, Pi-Jin Chen, Bing-Chu Du, Liang Liu, Shou-Shan Fan
Life of this patent
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Abstract
A method for packaging the vacuum device includes providing a pre-packaged container having an exhaust through hole defined therein and a sealing element placed into the exhaust through hole, pumping the pre-packaged container to create a vacuum, heating and softening the sealing element to seal the exhaust through hole, and cooling the melted low-melting glass to package the pre-packaged container.
Claims9
A packaging precursor of a vacuum device, comprising:
- a pre-packaged container having an exhaust through hole defined therein, the exhaust through hole having an upper diameter and a lower diameter less than the upper diameter;
- and
- a sealing element placed into the exhaust through hole, the sealing element being made of a low-melting point material that has a melting point less than that of the pre-packaged container and having an evacuation passage defined therein to allow gas to escape from the container, wherein the evacuation passage of the sealing element is defined in a periphery of the sealing element, and the sealing element is retained in the exhaust through hole.
A packaging method for a vacuum device, comprising:
- providing a pre-packaged container having an exhaust through hole defined therein, wherein the exhaust through hole has an upper diameter and a lower diameter less than the upper diameter, and a sealing element having an evacuation passage defined therein, wherein the sealing element is made of a low-melting point material that has a melting point less than that of the pre-packaged container and the evacuation passage of the sealing element is defined in a periphery of the sealing element;
- placing the sealing element into the exhaust through hole;
- pumping the pre-packaged container to create a vacuum therein;
- heating and softening the sealing element into a viscous liquid to seal the exhaust through hole;
- and
- cooling the packaged container to obtain the vacuum device.
3 more elements
Dependencies are inferred from the claim text.