MAC VALVES, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING1261
 
  
 
F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR 936
 
  
 
C22B PRODUCTION OR REFINING OF METALS 325
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 292
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 148
 
  
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 148
 
  
 
F17D PIPE-LINE SYSTEMS; PIPE-LINES 113
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 183

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9903395 Proportional pressure controller with isolation valve assemblyFeb 24, 16Feb 27, 18[F15B]
9395010 Multi-port modular valve with snap-in seatJul 21, 14Jul 19, 16[F16K]
9103463 Pressure balanced solenoid operated valveFeb 14, 12Aug 11, 15[F16K]
9074699 Multi-port normally open modular valve with thread-in seatDec 21, 12Jul 07, 15[F16K]
9022069 Solenoid operated valve with constant bleed portMar 15, 13May 05, 15[F16K, F17D]
9010373 Pressure balanced valve with diaphragm valve member end sealSep 06, 11Apr 21, 15[F16K, F15B]
8939173 Stepper motor operated balanced flow control valveJul 14, 10Jan 27, 15[F16K]
8932515 Crust breaker aluminum bath detection systemJun 13, 11Jan 13, 15[C22B, B22D]
8910562 Pneumatic system for controlling aluminum bath crust breakerJun 13, 11Dec 16, 14[F15B]
8906291 Piston rod and cylinder seal device for aluminum bath crust breakerApr 04, 12Dec 09, 14[C22B, F15B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0169,401 STEPPER MOTOR OPERATED BALANCED FLOW CONTROL VALVEAbandonedJan 13, 15Jun 16, 16[F16K]
7735518 Valve assembly with dual actuation solenoidsExpiredJan 05, 07Jun 15, 10[F15B]
2007/0176,720 Flux bushing for solenoid actuatorAbandonedFeb 02, 06Aug 02, 07[H01F]
7036522 Solenoid actuated pneumatic valve with an integrated pass-through and a quick mount bodyExpiredAug 19, 03May 02, 06[F16L]
2006/0027,269 Rapid response solenoid for electromagnetic operated valveAbandonedJul 27, 05Feb 09, 06[F15B]
6772784 Proportional pressure regulator having positive and negative pressure delivery capabilityExpiredApr 11, 03Aug 10, 04[G05D]
6637451 Pneumatic pressure regulator assemblyExpiredDec 06, 01Oct 28, 03[G05D]
6483688 Control circuit for solenoid valve assemblyExpiredJul 12, 00Nov 19, 02[H01H]
6129115 Self-latching solenoid valve assemblyExpiredJul 02, 99Oct 10, 00[F16K, F15B]
6095184 Pressure regulator with integrated control valve, adjustable downstream pressure build and quick exhaustExpiredJun 30, 99Aug 01, 00[F16K]
5526838 Method and valve assembly for controlling a pilot signalExpiredJan 12, 95Jun 18, 96[G05D]
5192936 SolenoidExpiredAug 22, 91Mar 09, 93[H01F]
5092365 Valve with adjustable valve seatExpiredMar 18, 91Mar 03, 92[F15B]
5032704 Multi-pressure control systemExpiredAug 22, 90Jul 16, 91[B23K]
4880033 Poppet valveExpiredDec 12, 88Nov 14, 89[F15B]
4856560 Valve base with integral flow control valves and common exhaust passageExpiredDec 05, 88Aug 15, 89[F10K]
4829275 Method and means for providing consistent operation of a solenoid actuatorExpiredJun 27, 88May 09, 89[H01F]
4770209 Valve base with integral flow controlsExpiredJul 23, 87Sep 13, 88[F16K]
4770210 Valve manifold stacking baseExpiredJul 23, 87Sep 13, 88[F16K]
4579042 Selective air pressure control system for welding and like apparatusExpiredApr 20, 84Apr 01, 86[F15B]

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