Nippon Air Brake Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL169

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5083586 Mounting arrangement for connecting a fluid pressure valve to a pipe bracket by a hollow adapter memberMay 06, 91Jan 28, 92[F16L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5351600 Hydraulic booster for vehicleExpiredNov 30, 92Oct 04, 94[B60T, F15B]
5297856 Two separate high speed and low speed disc brake units for railway vehiclesExpiredNov 27, 92Mar 29, 94[B60T]
5253930 Air brake control system having an electromagnetic valve device which has two set points for establishing a lap positionExpiredSep 25, 91Oct 19, 93[F16K, B60T]
5243820 Hydraulic circuit with compensator valve biased with highest pressure acting on actuatorsExpiredJun 18, 91Sep 14, 93[F15B, F16D]
5146952 Fluid pressure control valve device for a railway carExpiredSep 24, 91Sep 15, 92[F16K]
5144985 Variable load valve for railway vehiclesExpiredSep 24, 91Sep 08, 92[F16K]
5125722 Load compensation control valveExpiredJul 03, 90Jun 30, 92[B60T]
5117950 Hydraulic shock absorber controller for a wheel craneExpiredMar 13, 91Jun 02, 92[F16F]
5107753 Automatic pressure control device for hydraulic actuator driving circuitExpiredAug 08, 91Apr 28, 92[F15B]
5063964 Pipe coupling used with automatic connecting and disconnecting deviceExpiredDec 05, 90Nov 12, 91[F16L]
5058383 Hydraulic motor control circuitExpiredDec 05, 90Oct 22, 91[F16D]
5050483 Flow control deviceExpiredJul 18, 90Sep 24, 91[F15B]
5046921 Moisture-removal device for a compressed air systemExpiredJun 22, 90Sep 10, 91[F03B]
5036750 Pilot-operated dual check valve assembly with cross-line flow valving pilot pistonsExpiredJun 07, 90Aug 06, 91[F16K]
5002593 Compressed-air dryerExpiredFeb 16, 90Mar 26, 91[B01D]
4998461 Two-part plastic piston with excess resin receiving grooveExpiredJan 30, 89Mar 12, 91[F16J]
4993521 Tread brake unitExpiredAug 17, 89Feb 19, 91[F16D]
4989831 Coupling deviceExpiredJun 08, 90Feb 05, 91[F16L]
4969838 Latch and locking handle for an electrical connectorExpiredAug 16, 89Nov 13, 90[H01R]
4967999 Flow passage coupling unitExpiredNov 28, 89Nov 06, 90[F16L]

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