US 5,255,812 · Granted 1993-10-26
Container cap
A container cap for vise with a self-heating tin container having a chemical compound on one end for releasing heat upon mixing with a liquid catalyzer. The container cap has an annular groove on the bottom around the border into which a peripheral flange on a self-heating tin container is inserted for positioning, a pointed member on the inside surface of the elastic top edge thereof, a film covering covered over the pointed member to hold a liquid catalyzer. Pressing the elastic top edge of the container cap against the tin container to which the container cap is fastened causes the pointed member to pierce the film covering permitting the liquid catalyzer to flow out of the container cap for mixing with the chemical compound in the tin container.
Patent details
- Publication number
- US 5,255,812
- Filing date
- 1992-07-01
- Grant date
- 1993-10-26
- Assignee
- Hsu Yu T
- Inventor(s)
- HSU; YU T.
- CPC class
- B65D51/2835
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