Pipe joints or couplings – Packed – Flanged pipe
Patent
1988-07-13
1989-09-19
Brown, Peter R.
Pipe joints or couplings
Packed
Flanged pipe
285424, F16L 2300
Patent
active
048674907
ABSTRACT:
A pair of frame members are secured to the ends of pair of adjacent generally circular ducts. Each frame member has a generally circular configuration and has an inner vertical wall, an outer vertical wall. The outer vertical wall is connected to a sloped rigidifying portion which extends outwardly from the inner vertical wall. Both the inner and outer vertical walls have horizontally extending flanges which are in abutting relation and their end portions are clampingly engaged. The frame members have a circumferential dimension less than the circumferential dimension of the duct member so that a gap is formed in the circular frame member. The frame members are positioned on the duct end portions by inserting the frame member flange portions inside the duct end portions with the top surface of the frame member upper flange abutting the underside of the duct. Fasteners secure the duct end portion to the flange members and are applied to the flange member and duct end portion to urge the frame member flange portion against the undersurface of the circular duct.
REFERENCES:
patent: 2747897 (1956-05-01), Leighton
patent: 2761707 (1956-09-01), Herman
patent: 2804559 (1957-08-01), Brewer
patent: 2862731 (1958-12-01), Hedden et al.
patent: 2880017 (1959-03-01), Anderson et al.
patent: 3630552 (1971-12-01), Byron
patent: 4120519 (1973-10-01), Budger
patent: 4516797 (1985-05-01), Meinig
patent: 4566724 (1986-01-01), Arnoldt
patent: 4679832 (1987-07-01), Meinig
Brown Peter R.
Ductmate Industries, Inc.
Price, Jr,. Stanley J.
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