Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Patent
1983-05-16
1985-05-21
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
100269A, 264 452, 264 466, 425110, 425123, 425366, 425367, 425817R, B29D 2704, B30B 132
Patent
active
045185506
ABSTRACT:
A method of manufacturing rigid frame building elements filled with hard foam plastic, said method comprising the use of prefabricated, rigid, dimensionally stable, hollow skeleton frames, the hollow interior spaces of said skeleton frames are foamed and filled with closed cell hard foam plastic serving as heat insulation, and the elements are subjected in a press to compression pressure which overrules the foaming pressured exerted on the frame of an element from inside. For continuous-action manufacture, the used press is a (known as such on the basis of size presses) continuous-action press machine whose lower frame is equipped with lower conveyor means (4) and upper frame with upper conveyor means (5), said conveyor means confining between themselves a conveying gap, in which the passing elements are maintained subjected to compression pressure by means of pressure members (7) carried by said conveyor means. The conveying gap, defined by said conveyor means and limited on at least one side by a horizontal tangential plane of parallel-disposed, crosswise of the machine extending rolls (5a), is set to be smaller than prefabricated skeleton frames. The prefabricated skeleton frames are fed into the conveying gap which due to the action of elements passing in said gap expands in a manner that each roll (5a) is capable of moving vertically against the force exerted by pressure members (7). Conveying speed is adjusted in view of the length of said conveying gap in a manner that expansion of a filling foam and the pressure generated thereby has substantially ceased by the time an element leaves the conveying gap.
REFERENCES:
patent: 2598190 (1952-05-01), Offutt
patent: 2830631 (1958-04-01), Cranston, Jr. et al.
patent: 3167603 (1965-01-01), Lillie
patent: 3369065 (1968-02-01), Keith
patent: 3444029 (1969-05-01), Renaud et al.
patent: 3771438 (1973-11-01), Radakovich
patent: 4258766 (1981-03-01), van Dijk
patent: 4351233 (1982-09-01), Leonard
Miettinen Jorma K.
Virtanen Eero J.
Anderson Philip
Makrotalo Oy
LandOfFree
Method of manufacturing rigid frame building elements filled wit 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 of manufacturing rigid frame building elements filled wit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing rigid frame building elements filled wit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1537442