Inventor
WALTON FRANK A
US18 patents
⚠️ This page may combine multiple inventors who share the name “WALTON FRANK A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DOSMATIC USA INC
12 patentsUSD525685SJul 25, 2006
One way valve gasket
DOSMATIC USA INC25 citations92
US7000782B2Feb 21, 2006
Backwash flushing filter
DOSMATIC USA INC25 citations91
US7032760B2Apr 25, 2006
Backwash flushing filter
DOSMATIC USA INC18 citations88
US6910405B2Jun 28, 2005
On/off switch for liquid additive injection pump
DOSMATIC USA INC19 citations84
US7438537B2Oct 21, 2008
Liquid additive injection pump with mixing chamber and one way valve
DOSMATIC USA INC11 citations83
US6254366B1Jul 3, 2001
Replaceable seal having a friction fit
DOSMATIC USA INC7 citations71
US6431198B2Aug 13, 2002
Pumping system for the injection of measured quantities of fluid into a fluid stream
DOSMATIC USA INC11 citations70
US6357466B1Mar 19, 2002
Pumping system for the injection of measured quantities of fluid into a fluid stream
DOSMATIC USA INC13 citations70
USD573620SJul 22, 2008
Self sealing piston ring
DOSMATIC USA INC2 citations62
USD603435SNov 3, 2009
Dosage piston retention clip
DOSMATIC USA INC2 citations59
USD603427SNov 3, 2009
On-off plunger
DOSMATIC USA INC1 citations49
USD602512SOct 20, 2009
Piston assembly
DOSMATIC USA INC0 citations49