A.Y. MCDONALD MFG. CO.

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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 AERATING865
 
 
 
F04F PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED 212
 
 
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161
 
 
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS173

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9803656 Control apparatus for a water powered sump pumpJun 06, 14Oct 31, 17[F16K, F04F]
8920131 Pump control and methodDec 13, 10Dec 30, 14[F04B, F04D]
7584765 Meter barOct 11, 04Sep 08, 09[F16K]
7347219 Meter bar and metering systemOct 20, 05Mar 25, 08[F16K]
7185671 Angled dual check valveDec 27, 04Mar 06, 07[F16K]
5799687 Security valve assemblySep 27, 96Sep 01, 98[F16K]
5613835 Flow control apparatus for a water powered sump pumpMar 07, 96Mar 25, 97[F04F]
5207242 Angle dual check valveJul 09, 92May 04, 93[F16K]
5102098 Tamperproof rotary valveJun 26, 91Apr 07, 92[F16K]
5076541 Tamperproof rotary valveMar 28, 91Dec 31, 91[F16K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5836340 Auxiliary gas connection for meter setsExpiredJan 19, 96Nov 17, 98[F16K]
4984767 Tamperproof rotary valveExpiredMay 21, 90Jan 15, 91[F16K]
4862744 Holder and shut off valve for a water flow control deviceExpiredNov 13, 87Sep 05, 89[G01F]
4691727 Flow conditioning device resetter assemblyExpiredNov 04, 85Sep 08, 87[F16L, G01F]
4516794 Meter pit mounted holder for a water flow control deviceExpiredNov 05, 82May 14, 85[F16L]
4303833 Natural energy operated pump systemExpiredJul 07, 80Dec 01, 81[F04B]
4218042 Ball valve constructionExpiredNov 08, 78Aug 19, 80[F16K]

Top Inventors for This Owner

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