ROBERTS SINTO CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 463
 
  
 
B24C ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL117

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7585207 Throwing wheel assemblyDec 07, 07Sep 08, 09[B24C]
7258223 Pallet conveyor with chain drive recirculating in a horizontal planeOct 08, 04Aug 21, 07[B65G]
5544735 Chain conveyor with frictionally driven recirculated pallets linked together in sub groupingsMar 20, 95Aug 13, 96[B65G]
5495933 Chain driven pallet accumulating over/under chain conveyorMay 09, 95Mar 05, 96[B65G]
5407058 Chain conveyor with frictionally driven recirculated pallets linked together in sub groupingsMar 29, 94Apr 18, 95[B65G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5038845 Blow tube arrangement for core and mold making machineryExpiredAug 31, 90Aug 13, 91[B22C]
4987834 Accumulating conveyor with self-propelled palletsExpiredJun 20, 89Jan 29, 91[B61J]
4971515 Apparatus for moving individual sheets from a stack of sheetsExpiredNov 22, 88Nov 20, 90[B65H]
4955291 Conveyor with self propelled vehicles each having an on board controlExpiredJul 14, 88Sep 11, 90[B61L]
4883558 Method and apparatus for bonding pairs of mold shells into moldsExpiredSep 23, 88Nov 28, 89[B32B]
4846073 Selective delivery arrangement for self propelled pallet vehiclesExpiredMar 21, 88Jul 11, 89[B61K, B61J]
4836269 Forming apparatus having catalyst introduction simultaneous with sand injectionExpiredApr 21, 88Jun 06, 89[B22C]
4832108 Method and apparatus for handling tooling within a foundry machineExpiredAug 23, 88May 23, 89[B22C]
4830082 Machine and method for making molds using an activating gasExpiredDec 03, 86May 16, 89[B22C]
4804173 Method and apparatus for moving individual sheets from a stack of sheetsExpiredJun 03, 85Feb 14, 89[B65H]
4757855 Method and apparatus for loading and unloading tooling from a foundry machineExpiredApr 02, 87Jul 19, 88[B22C]
4718474 Mold transfer mechanism for a molding machineExpiredDec 03, 86Jan 12, 88[B22C]
4714100 Method and apparatus for changing a mold box on a molding machineExpiredDec 03, 86Dec 22, 87[B22C]
4278123 Simplified foundry core making machine and methodExpiredMar 12, 79Jul 14, 81[B22C]
4278920 Method and apparatus for generating position or path control programs using force feedbackExpiredJul 31, 78Jul 14, 81[H02K]
4233907 Mold conveyor drive assemblyExpiredOct 25, 78Nov 18, 80[B65G, B61B]
4210194 Automatic method for producing molds using chemically bonded sandsExpiredOct 17, 77Jul 01, 80[B22C]
4191239 Blow plate structure and mold formed therebyExpiredFeb 03, 78Mar 04, 80[B22C]

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