Lyman v. Lyman
U.S. Circuit Court for the Northern District of Illnois
This was a suit in equity by Wilfred O. Lyman against Edward F. Lyman and James P. Warren for alleged infringement of letters patent reissue No. 10,497 (original No. 179,581), and No. 803,441, relating to condenser beads for si earn-exhaust pipes.
1Opinion of the Court
SHOW ALTER, Circuit Judge.
This litigation has to do with the funnel-shaped sheet-metal structures sometimes seen on city buildings and known as “condenser heads,” or “steam-exhaust heads.” A condenser head is attached to a steam-exhaust pipe to condense the steam, and prevent the spray and objectionable matter therein from, spreading over the roof of the building on which it is used. Steam passing through such a contrivance is hindered and delayed in its exit by metal deflector plates, so arranged as to condense the steam and carry the water of condensation to a drip pipe at one side, whence…
2Cases cited1 opinion
- Lyman v. MaypoleUnited States Circuit Court · 1884