Patent Publication Number: US-2007101601-A1

Title: Device &#34;Tool&#34; to &#34;Grade&#34; sewer line/drain lines under crawl spaces &#34;Drop-Shot&#34; tool

Description:
The invention will simplify Plumbing Rough-in measurements for drop to grade on building Sewer systems within residential homes as well as commercial buildings where allowed. This tool will enable the Plumber to perform residential sewer system calculations for drops Within basements, where crawl space is limited. Also, tool will be easy to use on second Floor dwellings. Individual Plumber example usage: If you are working alone and need To drop a sewer (drain line) 20 feet at ¼ inch drop per foot, this tool (Drop-Shot) will Attach to rough floor brace and measure out 20 feet. Example: 3″ sewer pipe running 20 Feet at ¼ inch per foot drop would equal to 5 inches drop. One Plumber can set Drop-Shot Tool at 5 inches drop and get his/her drop at 20 feet. Drop-Shot Tool can be used for pipe Sized 2″ thru 4″ and reverse side can be used for ⅛ inch drop for pipe bigger than 4″. Drop will always comply with Uniform Plumbing Codes and save time, money and always Enable the Contractor Plumber to be in compliance of local, state and other Plumbing Codes.  
    
    
     LEGION  
      Scale: ¼ Drop &amp; ⅛ Drop (larger Pipe)  
      Size of Pipe: 2″ thru 4″ 
      Drop-Shot Pipe Grade Adjustable TOOL Size—24 inches Total  
      Usage: For use on Sewer pipe for accurate drop to grade  
      Mounting: For Residential 7 Commercial Usage  
      Pipe: Plastic or Castiron Hub/No-hub  
      Front View:  
      Extension Run  
      Level screw For wood or metal studs  
      Adjustable slot with pin or lock  
      ¼ inch pin with lock key for long runs  
      ¼ inch round slots  
      ¾ inch square tube×12 inches  
      1 inch square tube×12 inches  
      Swvail locks ¼ inch  
      Swvial pin ¼ inch  
      1 inch metal or leather strap× 1/16 inch  
      * lock nut on back view  
      ** Note: Front View is for ¼ inch Drop-Shot Description only  
      5 inches at ¼ inch drop equals to 20 feet grade  
      6 inches at ¼ inch drop equals to 24 feet grade  
      7 inches at ¼ inch drop equals to 28 feet grade  
      8 inches at ¼ inch drop equals to 32 feet grade  
      Side View:  
      1 inch square tube×12 inches  
      ¼ inch swvial pin  
      Strap lock nut ¼ inch  
      ¼ inch all thread bolt  
      1 inch strap iron× 1/16 inch or leather strap  
      5 inches at ¼ inch drop equals to 20 feet  
      6 inches at ¼ inch drop equals to 24 feet  
      7 inches at ¼ inch drop equals to 28 feet  
      8 inches at ¼ inch drop equals to 32 feet  
      9 inches at ¼ inch drop equals to 36 feet  
      10 inches at ¼ inch drop equals to 40 feet  
      11 inches at ¼ inch drop equals to 44 feet