Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Controlling fluid pressure in direct contact with molding...
Reexamination Certificate
2008-01-29
2008-01-29
Kuhns, Allan R. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Controlling fluid pressure in direct contact with molding...
C264S046400, C264S046600, C264S046800
Reexamination Certificate
active
11075007
ABSTRACT:
A method for forming a foamed product integral with a sheet of covering material utilizing a forming apparatus which comprises a first die, a second die housed within the first die and having air-ventilating holes, and a third die adapted to be combined with the first die, to thereby provide a forming cavity between the second die and the third die, the method comprising the steps of preparing a three-dimensional, air-permeable trim cover having a two layer structure comprising a layer of foamed material and a sheet of covering material laminated with the foamed material layer, putting the trim cover on the second die such that the sheet of covering material is facing the second die, applying vacuum to the trim cover through the air-ventilating holes of the second die to draw the trim cover onto the second die, causing the third die to be combined with the first die to define the forming cavity in cooperation with the first die, thereafter stopping the applying of the vacuum to the trim cover, and pouring expandable resins into the forming cavity and causing the expandable resins to foam to thereby form a cushioned padding integral with the trim cover, while applying compressed-air to the first die as pressure within the forming cavity rises due to gas generated by the foaming of the resins, the compressed-air balancing the gas in pressure.
REFERENCES:
patent: 4002520 (1977-01-01), Fenton
patent: 4025372 (1977-05-01), Fenton
patent: 4923653 (1990-05-01), Matsuura et al.
patent: 4976414 (1990-12-01), Yanagishita
patent: 5114639 (1992-05-01), Kurz et al.
Asano Yasushi
Yabe Takahito
Dann Dorfman Herrell and Skillman, P.C.
Kuhns Allan R.
TS Tech Co. Ltd.
LandOfFree
Method for forming a foamed product integral with a sheet of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for forming a foamed product integral with a sheet of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for forming a foamed product integral with a sheet of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3951069