Resources Contact Us Home
Aircraft toilet drain assembly

Image Number 2 for United States Patent #4086670.

This invention relates to an aircraft toilet drain assembly of the type utilizing a drain plug, intended to prevent a maintenance operator from failing to replace the drain plug at the completion of after-flight servicing. The assembly is installed at the end of an outlet tube from a toilet holding tank in a position adjacent an access opening in the aircraft, which is closed in flight by an access panel. The assembly includes an outlet nipple, secured to the outlet tube, and a releasable cover mountable on the end of the nipple. A handle mounted on the cover is selectively movable between an extended position in which it obstructs the access opening to prevent the access panel from being closed and a depressed condition in which the access panel can be closed. An interlock responsive to the presence of the drain plug in the nipple locks the handle in its extended position unless a drain plug is present. The toilet drain assembly thus ensures that the aircraft access panel cannot be closed and the aircraft cleared for flight, unless a drain plug has been installed.

  Recently Added Patents
Lighting apparatus
Single-pass Barankin Estimation of scatterer height from SAR data
Motion estimation for a video transcoder
Semiconductor apparatus
Photovoltaic system with integrated photovoltaic panel and battery
Means to securely fixate pacing leads and/or sensors in vessels
Roll of continuous web of optical film laminate and production method therefor
  Randomly Featured Patents
Remote data acquisition, transmission and analysis system including handheld wireless equipment
Method for inserting stator coil lead wires into terminals having wire-receiving channels
Method of fabricating a semiconductor device having an asymmetrical dual-gate silicon-germanium (SiGe) channel MOSFET and a device thereby formed
System for controlling the geometry of a vehicle wheel
Carbon nanotube sensor
Wall anchor
Electric actuator
Method of administering EDTA complexes
Automatic clutch unit for vehicle use