Half a croissant, on a plate, with a sign in front of it saying '50c'
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Drain Wipers

Like windshield wipers, but to prevent drains from clogging
 
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Outdoor drains often clog due to accumulating leaves, trash, what have you, covering them. If the mouth of the drain were made of Lucite or a similarly strong, flat material, and if a powerful spring-mounted wiper were attached, the blade could sweep away the blocking debris, leaving the drain free of back-ups.
snarfyguy, Feb 19 2003

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       I take it that maintenance crews in your don't watch weather reports either.
thumbwax, Feb 19 2003
  

       I *was* the maintenance crew at the place that gave me the idea. I just wasn't there that often and after it rained there would be a HUGE scary puddle on the roof. I can't believe it didn't collapse.
snarfyguy, Feb 19 2003
  

       If you made a device that forced the blockage down the drain to like a incinerator it might work better. Good thinking but I couldn't vote for it. Keep thinking and you might strike a golden idea though! Nice Going There.
Flying Doom Squid, Aug 29 2007
  
      
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