Knapsack hand-operated sprayer

Knapsack hand-operated sprayer

  • CN 2,278,353 Y
  • Filed: 07/30/1996
  • Issued: 04/15/1998
  • Est. Priority Date: 07/30/1996
  • Status: Active Grant
First Claim
Patent Images

1. a knapsack hand sprayer comprises spray tank, pump, stopper rod, connecting rod, air chamber, it is characterized in that, the installation position at described pump on the upper surface of described spray tank is provided with liquid return trough, and its bottom is provided with more than one through hole.

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