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AMERICAN DEFIBRATOR

Overview
  • Total Patents
    84
About

AMERICAN DEFIBRATOR has a total of 84 patent applications. Its first patent ever was published in 1941. It filed its patents most often in Canada, United States and Germany. Its main competitors in its focus markets textiles and paper, chemical engineering and machine tools are OBITZ LARS, SHANDONG CENTURY SUNSHINE PAPER GROUP CO LTD and BETZ GUENTER.

Patent filings in countries

World map showing AMERICAN DEFIBRATORs patent filings in countries

Patent filings per year

Chart showing AMERICAN DEFIBRATORs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Messing Hjalmar S 31
#2 Elander Lars 5
#3 Johansson Inge 5
#4 Sebastian Messing Hjalmar 4
#5 Mokvist A 4
#6 Reinhall R 4
#7 Sandstrom A 4
#8 Johansson I 4
#9 Reinhall Rolf 4
#10 Mokvist Anders 4

Latest patents

Publication Filing date Title
CA1063406A Method and apparatus for producing fiber pulp in a steam-pressurized grinding apparatus
GB1569383A Method and device in connection with manufakture of fibre pulp in a steam-pres-surised grinding apparatus
IT1202962B Static discharge device - for fibre discharge from a pressurized digester
US4074803A Screw conveyor having stopper bar means
US4039373A Static discharge device and method for fiber discharge from a pressurized digester
US3332836A Continuous impregnation and digestion apparatus for the production of wood pulp
US2931586A Grinding device for the breaking down of wood fibres
IE21499L Expressing liquids from solids
ES220025A1 Improvements in continuous presses (Machine-translation by Google Translate, not legally binding)
GB768870A Continuous press for separating liquids from solids
US2808156A Blow-off steam condenser and heat exchanger for pulp producing apparatus and the like
US2858973A Steam nozzle for pulp producing apparatus
US2774491A Rotary feeding device for pulp making apparatus
US2729161A Continuous flow press for removing moisture from materials such as bark and the like
US2663405A Screw conveyer and the like having interrupted flights
US2710726A Pressure controlling device for pulp producing apparatus and the like
US2687816A Feeding device for pulp making machinery
GB683916A Discharge device for finely divided fibrous material from a pressure system
US2657131A Discharge device for finely divided fibrous material from a pressure system
US2652935A Rotary feeding device