Pipe joints or couplings – Packed – Flanged pipe
Patent
1989-08-16
1992-08-04
Arola, Dave W.
Pipe joints or couplings
Packed
Flanged pipe
285424, F16L 2300
Patent
active
051352702
ABSTRACT:
Apparatus for connecting the ends of a pair of oval duct sections includes a pair of arcuate frame sections and a pair of linear intermediate frame sections that are connected to each other by connector pieces having leg portions extending into receivers in the profile of the frame sections. The connector pieces have stop members which abut the edges of the frame sections and provide a gap therebetween. The lower stop member is offset rearwardly from the body portion of the connector piece and the edge portion of the oval duct extends outwardly into the gap portion. The oval duct end portions are connected to the duct connector frame members and pairs of frame members are positioned in adjacent relation with a gasket member therebetween. The connecting members include a securing device to secure the adjacent frame members to each other and exert a compressive force on the gasket member therebetween. Portions of the gasket member at the gaps are distorted into abutting and sealing relation with the front edge of the duct in the gap.
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Thor Metal Products Co. Inc. Brochure of Gas Vent Pipe and Fittings (Round & Oval), May 24, 1961.
Titan Steel Publication, "Titan PDQ Round Duct Flange Rings", (no date given).
Arnoldt Frederick J.
Arnoldt Peter J.
Arola Dave W.
Ductmate Industries, Inc.
Price, Jr,. Stanley J.
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