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Class 285/179.2 - Sheet-metal


Subclass of Class 285 - Pipe joints or couplings
Definition: Subject matter wherein the conduit comprises very thin-walled
No. of patents: 3
Last issue date: 07/08/2003


NumberTitleIssue Date
6588802Two-part, clamp-connected chimney flue tee
A two-part clamp-connected chimney flue tee. The tee includes an elongated main section which is detachably connected to a transversely extending bull, or snout section. The main section has flue pipe connection ends and an oval cut-out portion in its sid...
07/08/2003
6431611Two piece universal elbow
An air duct fitting comprising a rectangular cross section duct segment having a central axis, a round cross section duct segment having a central axis, and a transition rectangle-to-round segment, the rectangular cross section duct segment having a later...
08/13/2002
5531484Elbow provided with guide vanes
An elbow is provided with guide vanes disposed as to make the shapes of the sub-channels defined thereby similar to each other....
07/02/1996
 
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