UNITED DOMINION INDUSTRIES, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E01D BRIDGES 87
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 661
 
  
 
F22B METHODS OF STEAM GENERATION; STEAM BOILERS 221
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 157
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172
 
  
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 193

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6804850 Loading dock with lip protecting bumpersMar 05, 01Oct 19, 04[E01D]
6772713 Method and apparatus for providing and utilizing outside air for boiler combustionDec 12, 02Aug 10, 04[F22B]
D486897 BoilerNov 27, 02Feb 17, 04[2304]
6647932 Compact boiler with tankless heater for providing heat and domestic hot waterJun 21, 02Nov 18, 03[F22B]
6594842 Loading dock with segmented wide lipJan 30, 02Jul 22, 03[E01D]
6487741 Multi-position releasable lip latch for a dock levelerApr 17, 01Dec 03, 02[E01D]
6327733 Mechanically actuated dock leveler with hydraulic assistDec 10, 99Dec 11, 01[E01D]
6322311 Low profile vehicle restraintFeb 23, 00Nov 27, 01[B65G]
6125491 Counterbalance for mechanical dock levelerSep 21, 98Oct 03, 00[E01D]
6082952 Automatic wheel chock systemDec 12, 97Jul 04, 00[B65G]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2007/0264,132 Pump drive alignment apparatus and methodAbandonedJul 23, 07Nov 15, 07[F04B]
7237944 Scraped heat exchanger having blade with protective rest nubExpiredDec 30, 03Jul 03, 07[F28F]
7178807 Shaft mounted seal device and method for a scraped surface heat exchangerExpiredJun 15, 04Feb 20, 07[F16J]
7114552 Split mutator shaftExpiredJun 15, 04Oct 03, 06[B23P]
2005/0287,280 Induction heating of product tube method and apparatusAbandonedJun 24, 04Dec 29, 05[A23L]
2005/0089,811 Exhaust recirculating method and apparatus for a hydrocarbon fired burnerAbandonedOct 24, 03Apr 28, 05[F23N]
2005/0012,333 Pipe connecting method and apparatusAbandonedJul 14, 03Jan 20, 05[F16L]
2004/0261,335 Panel assembly for dock seal or shelterAbandonedJul 09, 03Dec 30, 04[E04D, E04H]
6783342 Method and apparatus for timing rotors in a rotary lobe pumpExpiredSep 17, 02Aug 31, 04[F04C]
2004/0123,861 Method and apparatus for multi-positioning combustion piping for a boilerAbandonedDec 31, 02Jul 01, 04[F23J]
2004/0004,205 Valve stem and gasket apparatus and methodAbandonedJul 03, 02Jan 08, 04[F16K, F02N]
6546946 Short-length reduced-pressure backflow preventorExpiredSep 07, 01Apr 15, 03[F16K]
2002/0144,365 Locking dock with adjustable bumpersAbandonedMay 16, 00Oct 10, 02[E01D]
6378548 Varying size diaphragm valve assemblies utilizing diaphragm of uniform sizeExpiredJun 23, 00Apr 30, 02[F16K]
6370719 Dock leveler lip constructionExpiredAug 14, 00Apr 16, 02[E01D]
6183231 Clean-in-place gear pumpExpiredApr 14, 00Feb 06, 01[F03C]
6152163 Switching valve for multi-chamber adsorbent air and gas fractionation systemExpiredApr 23, 98Nov 28, 00[F16K, B01D]
6139242 Vehicle restraint with security deviceExpiredApr 16, 97Oct 31, 00[B65G]
6123496 Automatic wheel chockExpiredAug 26, 97Sep 26, 00[B65G]
6035475 Maintenance prop for a dock levelerExpiredMar 05, 98Mar 14, 00[E01D]

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