Pressurized can for foam explusion
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United States of America Patent
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-
Nov 12, 1996
Grant Date -
N/A
app pub date -
Nov 23, 1994
filing date -
Nov 25, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pressurized can for the expulsion of building foams such as single-component polyurethane foams, the body of which is a cylinder, with a preferably pushed-in bottom. The body also includes a dome-like top section with a valve which expels the can contents consisting of a product component and a propellant. A floating plunger mounted on the interior wall of the cylinder separates the propellant gas chamber from the product component. The floating plunger has a cavity in its upper side, in which a component reactive with the product component is sealed off from the product component by a seal. A trigger device is placed in the dome-like top section to open the seal when the plunger reaches a position immediately below the dome-like top section.
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