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US 7,887,655 B2Granted
Fluid enveloping device and method for enveloping fluid with thin films
OwnerHui-Mei Cheninventor
Life of this patent
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Abstract
A fluid enveloping device includes a housing having a vacuum chamber; a valve for blocking off the communication of the vacuum chamber and atmospheric environment; a vacuum pump module connected to the vacuum chamber for extracting air until the vacuum chamber is close to a vacuum state; a die holder for locating a lower thin film and receiving the fluid at the lower thin film; a punch holder for locating an upper thin film; and a sealing nip in the vacuum chamber for hot-pressing the upper and the lower thin films to envelope the fluid therein.
Claims8
A method of enveloping fluid with thin films comprising the step in sequence of:
- step a:
- locating an upper thin film on a cavity of a punch holder and putting the punch holder in a vacuum chamber;
- step b:
- locating a lower thin film on a die cavity of a die holder, wherein the upper thin film has a peripheral circumference corresponding to that of the lower thin film;
- step c:
- pouring a fluid at the lower thin film after the die holder is moved into the vacuum chamber;
- step d:
- sealing the vacuum chamber having the punch holder and the die holder;
- step e:
- extracting the air in the vacuum chamber out until the vacuum chamber is close to a vacuum state;
- step f:
- driving the punch holder and the die holder to corresponding positions for contact joint of the upper and the lower thin films;
- and
- step g:
- hot-pressing the peripheral circumferences of the upper and lower thin films for enveloping the fluid therein under a vacuum condition.
12 more elements
Dependencies are inferred from the claim text.