Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Outside corner or peripherally bordered
Patent
1985-01-07
1986-03-11
Friedman, Carl D.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Outside corner or peripherally bordered
72369, E04C 238
Patent
active
045745536
ABSTRACT:
A spacer frame for insulating glass has corners in which the radii of curvature of the inner wall and the outer wall each are of a larger radius than the side portions of the hollow shaped bar portion. The spacer frame may be manufactured in an apparatus provided for that purpose, having two displaceable bending heads, by first simultaneously bending a hollow shaped bar portion twice through 90.degree., and then further bending it twice through 90.degree. between the corners, wherein, before the operation of bending the corners, the inner wall of the hollow shaped bar portion is curved inwardly and two notches are produced in the outer wall.
REFERENCES:
patent: 4073177 (1978-02-01), Leroux
patent: 4261145 (1981-04-01), Brocking
LandOfFree
Spacer frame and method for bending hollow shaped bar portions t does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spacer frame and method for bending hollow shaped bar portions t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spacer frame and method for bending hollow shaped bar portions t will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2184788