| Patent Number |
Title Of Patent |
Date Issued |
| D297722 |
Collapsible wheel chair |
September 20, 1988 |
|
| 4915213 |
Arrangement in a belt conveyor |
April 10, 1990 |
| A belt conveyor with at least one endless belt (1,1') has two tensile force (longitudinal)-absorbing members (3,4,3',4') which extend throughout the entire length of the belt conveyor and which are each connected to a respective edge portion of the belt and project from the plane of that |
| 4905920 |
Milling device |
March 6, 1990 |
| A milling device comprises two milling bodies one of which is hollow and encloses the other, and a driving unit connected to one of the milling bodies via a shaft nonrotatably connected with the one milling body to cause it to rotate about its own axis in rolling contact with the other |
| 4803932 |
Burner for a suspension of fine-grained coal in liquid |
February 14, 1989 |
| Burner for a suspension of fine-grained coal in a liquid, particularly water, which burner operates according to a combination of the rotary burner and toroidal burner principles. The fuel is supplied axially behind a transverse distribution baffle within a conical rotary body. At least |
| 4724952 |
Single-belt conveyor |
February 16, 1988 |
| A belt conveyor having a conveyor belt which is flexible in the transverse direction and which, along part of its path of travel, is twisted about it own axis from a lower guide roller (2) to an upper guide roller (3) for forming a tube for the conveyance of goods. The belt (1) runs over |
| 4693490 |
Collapsible wheel-chair |
September 15, 1987 |
| A wheel-chair has a foldable frame structure (10) which is lockable in the unfolded state and carries wheels (11, 12) and a back (13). In the folded state, all fixed parts are folded up between the wheels of the wheel-chair. The frame structure (10) is box-shaped and has foldable set |
| 4603774 |
Vertical conveyor for bulk goods |
August 5, 1986 |
| Use is made of a screw conveyor to supply and guide bulk material to a belt conveyor of the type having two or more belts which travel in face-to-face relationship and between which the bulk material is enclosed during conveyance. The screw of the screw conveyor is rotatably mounted for |
| 4561596 |
Apparatus for spreading granular material |
December 31, 1985 |
| An apparatus for spreading granular material, such as fertilizer, has a carriage (1) on which there is mounted a vertical conveyer (5, 6) which comprises a vertical cylindrical housing (5) and a conveyer screw (6) rotatably mounted therein. The screw (6) is rigidly connected at its lower |
| 4467910 |
Vertical conveyor for bulk goods |
August 28, 1984 |
| Use is made of a screw conveyor to supply and guide bulk material to a belt conveyor of the type having two belts which travel in face-to-face relationship and between which the bulk material is enclosed during conveyance. The screw of the screw conveyor may be rigidly connected to t |
| 4217109 |
Composition comprising a pulverized purified substance, water and a dispersing agent, and a meth |
August 12, 1980 |
| A composition consisting of carbon powder, water and a dispersing agent. The particle size of the carbon powder is less than 100 .mu.m, preferably less than 40 .mu.m. The composition is obtained by preparing a mixture of about 1-20% by weight, preferably about 10% by weight, of carbonace |
| 4194615 |
Apparatus for unloading loose particulate solid material |
March 25, 1980 |
| An apparatus for unloading loose particulate solid material having a discharge pipe and a positive discharge device at the outlet end of the discharge pipe. A pressure sensor is arranged to sense the pressure of the material at the outlet end of the positive discharge device and to produ |
| 4117408 |
Apparatus for indicating the loading of an electric AC motor |
September 26, 1978 |
| An apparatus for providing a signal the magnitude of which indicates the loading of an AC motor. Two pairs of antiparallel-connected diodes generate two AC signals of constant amplitude and of fixed phase position relative to the motor current and the motor voltage, respectively. A load |
| 3990567 |
Ship unloading apparatus |
November 9, 1976 |
| This invention relates to an apparatus for continuous unloading of dry loose particulate material from especially ships. The apparatus provides continuous conveyance of paticulate materials through an entirely closed system whereby air pollution, spillage, irregular unloading and sen |
