Zimmermann & Jansen GmbH

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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 AERATING271
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 148
 
  
 
F27D DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE 124

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6580744 Feed device for a shaft furnaceDec 19, 01Jun 17, 03[F27D]
6415811 Cooled slider plate, particularly a water-cooled hot air slider plateJun 27, 96Jul 09, 02[F16K]
5116022 Stop valve for pipe bridgeApr 03, 91May 26, 92[F16K]
5110018 Closing apparatus for the bottom pouring hole of a casting ladleFeb 26, 91May 05, 92[B22D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5667196 Slide valve to close large fluid conduits, in particular double-disk slide valveExpiredJan 16, 96Sep 16, 97[F16K]
5551666 Butterfly flap valveExpiredJun 16, 94Sep 03, 96[F16K]
5118084 Apparatus for controlled adjustment of a stopper of a distributor channel or the like in a continous casting plantExpiredJan 31, 91Jun 02, 92[B22D]
4905755 Method of and apparatus for automatically filling a continuous casting moldExpiredJun 22, 88Mar 06, 90[B22D]
4572054 Exact position feedback of double-acting power piston in hydraulic cylindersExpiredFeb 27, 84Feb 25, 86[F01B]
4545717 Machine for charging a glass melting tank furnaceExpiredJul 12, 82Oct 08, 85[C03B]
4478129 Apparatus for the exact position feedback of a double-acting power piston in a hydraulic power cylinderExpiredApr 01, 81Oct 23, 84[F01B]
4361973 Bulk material conveying for a pneumatic dredgerExpiredAug 22, 80Dec 07, 82[E02F]
4355787 Method of controlling the nozzle damper of a metallurgical vesselExpiredJul 02, 80Oct 26, 82[C21D]
4292747 Compressed air dredgeExpiredMay 02, 79Oct 06, 81[F04F, E02F]
4292993 Closure plate for hot blast slide valvesExpiredNov 09, 79Oct 06, 81[F16K]

Top Inventors for This Owner

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