Inventor
MCHUGH GEORGE J
US30 patents
⚠️ This page may combine multiple inventors who share the name “MCHUGH GEORGE J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AGF MFG
14 patentsUS6114823ASep 5, 2000
Circuit and apparatus for sensing fluid flow
AGF MFG73 citations94
US5609212AMar 11, 1997
Adjustable sprinkler head positioning assembly
AGF MFG28 citations92
US5588462ADec 31, 1996
Valve and sensor arrangement
AGF MFG45 citations92
US5409066AApr 25, 1995
Adjustable sprinkler head positioning assembly
AGF MFG29 citations92
US5269344ADec 14, 1993
Supply valve and arrangement for fire suppression water sprinkler system
AGF MFG32 citations92
US5103862AApr 14, 1992
Valve and arrangement for fire suppression water sprinkle system
AGF MFG35 citations92
US4993453AFeb 19, 1991
Valve and arrangement for fire suppression water sprinkler system
AGF MFG42 citations92
US4971109ANov 20, 1990
Valve and arrangement for fire suppression water sprinkler system
AGF MFG38 citations92
US4957123ASep 18, 1990
Device for cleaning a drain
AGF MFG31 citations92
US4852610AAug 1, 1989
Valve and arrangement for fire suppression water sprinkler system
AGF MFG37 citations92
US4741361AMay 3, 1988
Valve and arrangement for fire supression water sprinkler system
AGF MFG37 citations92
US4995423AFeb 26, 1991
Valve and arrangement for fire suppression water sprinkler system
AGF MFG21 citations82
US5036883AAug 6, 1991
Valve and arrangement for fire suppression water sprinkler system
AGF MFG14 citations74
US4895178AJan 23, 1990
Device for cleaning a drain
AGF MFG16 citations74
AGF MFG INC
10 patentsUS6396404B1May 28, 2002
Double check valve assembly for fire suppression system
AGF MFG INC65 citations96
US6810910B2Nov 2, 2004
Valve and arrangement for fire suppression system
AGF MFG INC36 citations92
US6341622B1Jan 29, 2002
Pressure relief valve and arrangement for fire suppression water sprinkler system
AGF MFG INC30 citations92
US6302146B1Oct 16, 2001
Valve and arrangement for fire suppression system
AGF MFG INC20 citations92
US6186169B1Feb 13, 2001
Valve and arrangement for fire suppression system
AGF MFG INC32 citations92
US6246333B1Jun 12, 2001
Apparatus for sensing fluid flow and associated load control circuit
AGF MFG INC32 citations90
US6681802B2Jan 27, 2004
In-line valve arrangement for fire suppression water sprinkler system
AGF MFG INC18 citations84
US6246331B1Jun 12, 2001
Apparatus for sensing fluid flow and associated load control circuit
AGF MFG INC15 citations82
US7836966B2Nov 23, 2010
Flow sensor and actuator
AGF MFG INC9 citations81
US6206034B1Mar 27, 2001
Valve with integral flow switch
AGF MFG INC13 citations74
BACK FLO ALARM VALVE CO INC
4 patentsUS4991655AFeb 12, 1991
Combined alarm and back-flow prevention arrangement for fire suppression sprinkler system
BACK FLO ALARM VALVE CO INC76 citations95
US5390744AFeb 21, 1995
Combined alarm and back-flow prevention arrangement for fire suppression sprinkler system
BACK FLO ALARM VALVE CO INC32 citations92
US5297635AMar 29, 1994
Combined alarm and back-flow prevention arrangement for fire suppression sprinkler system
BACK FLO ALARM VALVE CO INC43 citations92
US5154232AOct 13, 1992
Combined alarm and back-flow prevention arrangement for fire suppression sprinkler system
BACK FLO ALARM VALVE CO INC31 citations92