초록 ▼

Ring collar for use in connecting a side branch line to a main header air duct, the ring collar having a tubular sheet metal body with an inlet, an outlet end which is tapered for easy insertion into a tubular member, and a U-shaped channel ring around the body with the open side of the channel faci

Ring collar for use in connecting a side branch line to a main header air duct, the ring collar having a tubular sheet metal body with an inlet, an outlet end which is tapered for easy insertion into a tubular member, and a U-shaped channel ring around the body with the open side of the channel facing the outlet end of the body; and a process for connecting the ring collar to the main header.

대표청구항 ▼

A ring seal collar for air ducts which comprises a thin walled tubular conduit body having circumferentially uninterrupted inlet end and an outlet end, an L-shaped channel ring having a bottom leg and an outer leg extending substantially parallel to said conduit body, said bottom leg being rigidly a

A ring seal collar for air ducts which comprises a thin walled tubular conduit body having circumferentially uninterrupted inlet end and an outlet end, an L-shaped channel ring having a bottom leg and an outer leg extending substantially parallel to said conduit body, said bottom leg being rigidly affixed to and around the outside of said conduit intermediate said ends with said bottom leg of said channel ring being adjacent said inlet end and the open side of said channel being adjacent said outlet end, said bottom leg having a plurality of spaced holes through which fasteners may be inserted for attachment to a main header of a conditioned air distribution system.