Patent ID: 8429833

Claim:
An air pressure sensing system for a clothes dryer, comprising: a fitting having at least one cavity therethrough and configured to be coupled to an exhaust conduit of a clothes dryer, the fitting being configured for sampling air passing through the exhaust conduit, the fitting comprising: a spigot having a barbed end; a nut; an external flange configured to fit on the exhaust conduit; and an internal flange shaped complementary to the external flange and configured to fit with the exhaust conduit, wherein the spigot is connected to the external flange and/or the internal flange, and wherein the nut is threaded to an external thread on the spigot of the fitting, the nut being configured to tighten the external flange and the internal flange together with respect to the exhaust conduit; a conduit configured to be connected to the fitting via the barbed end of the spigot; a blockage indicator having a second spigot and a housing, the blockage indicator housing being physically remote from the fitting and configured to be connected to the conduit via the second spigot; an air pressure sensor located in the blockage indicator housing; and an indicator contained within the blockage indicator housing, wherein the indicator is connected to the air pressure sensor and is configured to indicate that air pressure in the exhaust conduit is exceeding a threshold air pressure.