Hot melt safely door holder device
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United States of America Patent
Stats
-
Oct 4, 2022
Grant Date -
Aug 20, 2020
app pub date -
Feb 14, 2019
filing date -
Feb 14, 2019
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hot melt safety door holder device includes: a first fixing part on one side of swing end of swing door sheet; a holder with a transverse through hole and the outer hole end faces towards the first fixing part; a second fixing part in the transverse through hole, the first radial end faces towards the outer hole end of transverse through hole, the second radial end faces towards the inner hole end; a conically cylindrical space, formed between the periphery of the second fixing part and the transverse through hole, and the inside and outside diameters of the end between the transverse through hole and the second fixing part corresponding to the space tapering end of conically cylindrical space are fitted with each other. The shape of the low-melting metal material filled in the conically cylindrical space matches the shape of conically cylindrical space, resulting in equal wall thickness.
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