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Class Information
Number: 241/259.2
Name: Solid material comminution or disintegration > Apparatus > Cooperating comminuting surfaces (e.g., jaw crusher) > Rotary surface (or surfaces) > Axial or radial flow of material (e.g., disc mill, or cone and shell mill) > With means vary space between surfaces > By fluid
Description: Apparatus under 259.1 wherein the means to vary the distance between the surfaces includes hydraulic or pneumatic pressure.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5398876 |
Apparatus and method for refining pulp stock |
Mar. 21, 1995 |
| 5323972 |
Bearing system in a refiner |
Jun. 28, 1994 |
| 5170951 |
Grinding apparatus |
Dec. 15, 1992 |
| 5067660 |
Stress regulator for pulp grinding apparatus and method |
Nov. 26, 1991 |
| 4986480 |
Method and apparatus for feeding a conical refiner |
Jan. 22, 1991 |
| 4913361 |
Apparatus and method for reducing agglomerates to a predetermined particle size |
Apr. 3, 1990 |
| 4913358 |
Mixer for pulp and bleaching chemicals |
Apr. 3, 1990 |
| 4801099 |
Combined hydrostatic/hydrodynamic bearing system for grinding apparatus |
Jan. 31, 1989 |
| 4637562 |
Rocking slag breaker |
Jan. 20, 1987 |
| 4614310 |
Comminuting apparatus with fluid cylinder rotor and stator biasing |
Sep. 30, 1986 |
| 4614304 |
Rotor/mixer for controlling mixing and refining of pulp material |
Sep. 30, 1986 |
| 4586665 |
Apparatus for treating cellulose pulp with adjustable treating gap |
May. 6, 1986 |
| 4469284 |
Comminuting apparatus with improved rotor and stator recess construction |
Sep. 4, 1984 |
| 4454991 |
Apparatus and method for monitoring and controlling a disc refiner gap |
Jun. 19, 1984 |
| 4449670 |
Comminuting apparatus with improved feed system |
May. 22, 1984 |
| 4447011 |
Plate adjustment system |
May. 8, 1984 |
| 4402463 |
Grinding apparatus for a suspension of fibres for paper manufacturing |
Sep. 6, 1983 |
| 4339084 |
Pulp refining apparatus with adjustable treating gap |
Jul. 13, 1982 |
| 4330215 |
Mixing device |
May. 18, 1982 |
| 4283016 |
Method and apparatus for controlling the effect of the centrifugal force on the stock in pulp defibrating apparatus |
Aug. 11, 1981 |
| 4283016 |
Method and apparatus for controlling the effect of the centrifugal force on the stock in pulp defibrating apparatus |
Aug. 11, 1981 |
| 4275852 |
Apparatus for controlling the refining of fibrous pulp grist in a drum refiner |
Jun. 30, 1981 |
| 4218024 |
Adjusting device for the cutting blades of a cutting tool |
Aug. 19, 1980 |
| 4085494 |
Method of and apparatus for positioning blades of a wood-chipping cutter drum |
Apr. 25, 1978 |
| 4073442 |
Electrically controlled system for regulating the grinding space in a grinding apparatus |
Feb. 14, 1978 |
| 4018395 |
Plate mill for pebbles, gravel or like materials |
Apr. 19, 1977 |
| 3987973 |
Device in machine elements with closed casing |
Oct. 26, 1976 |
| 3977611 |
Apparatus for refining fiber material |
Aug. 31, 1976 |
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