Double pipes for mixed boilers, to the methods of manufacturing such pipes and to the corresponding boilers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 5, 1991
Grant Date -
N/A
app pub date -
Apr 5, 1990
filing date -
Apr 7, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A double pipe is disclosed for mixed boilers comprising rectilinear segments in which the two duct sections are juxtaposed laterally. Each section (A,B) is defined, on its side the furthest away from the other section, by a plate (1,7) whose two longitudinal borders (2,3,8,9) are curved and are welded against the longitudinal borders of an intermediate partition (4) and this intermediate partition has stamped bosses (5) whose tops (6) are in contact with said plates and are fixed thereto.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully