Hillmar Industries Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 487
 
  
 
B61H BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES; ARRANGEMENTS OR DIS-POSITIONS OF BRAKES OR OTHER RETARDING APPARATUS IN RAIL VEHICLES 313

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9663123 Spring caging mechanism for a coil spring rail brakeMay 30, 11May 30, 17[B61H, B60T, F16D]
8646582 Vertical retractable rail clampNov 30, 09Feb 11, 14[B61H]
7975811 Constant force rail clampJan 22, 08Jul 12, 11[B61H]
7815020 Wheel brake caliperNov 16, 07Oct 19, 10[F16D]
7328778 Wheel brake caliperAug 04, 05Feb 12, 08[F16D]
6799662 Spring-actuated, hydraulically releasable brakesMay 09, 03Oct 05, 04[F16D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0158,475 VERTICAL RETRACTABLE RAIL CLAMPAbandonedFeb 11, 14Jun 12, 14[B61H]
5279469 Cable winding apparatus and methodExpiredDec 20, 91Jan 18, 94[B65H]
5215279 Cable reel with off-set spokesExpiredDec 20, 91Jun 01, 93[B65H]

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