Inventor

HELZER BRADLEY D

US3 patents

Patents

3 patents

US7644870B2Jan 12, 2010

Self-flushing sprinkler mechanism

RAIN BIRD CORP25 citations88

US7261247B2Aug 28, 2007

Slip gear for geared sprinkler motor

RAIN BIRD CORP10 citations81

US7434747B2Oct 14, 2008

Internal particulate protective obstruction for sprinklers

RAIN BIRD CORP3 citations60