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Drobniewski
James G. Drobniewski, Macomb, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20100236865 | Ladder Access Control Kit And Ladder Assembly Including Access Control Apparatus - A ladder access control kit and a ladder assembly including access control apparatus are provided. The kit includes a planar barrier and a first member having a first support structure to movably support the barrier and a first attachment mechanism to secure the first support structure at a first side of the ladder. The barrier is movable within a plane of the barrier between an access position to allow access to the ladder and a blocking position to prevent access to the ladder. The kit also includes a second member including a second support structure and a second attachment mechanism to secure the second support structure at a second side of the ladder spaced apart from the first side of the ladder. The kit further includes a locking device to fasten the barrier to the second support structure in a locked condition of the device and in the blocking position of the barrier to prevent unauthorized access to the ladder. | 09-23-2010 |
Jörg Drobniewski, Herrenberg DE
| Patent application number | Description | Published |
|---|---|---|
| 20110045283 | ABRASION-BLASTED CUTTING INSERT AND METHOD - The invention relates to a cutting insert and a method for its production, in which a hard-metal, cermet, or ceramic substrate body is coated by means of a PVD, PCVD or CVD method with a single- or multi-layer coating of carbides, nitrides, oxides, carbonitrides, oxinitrides, oxicarbides, oxicarbonitrides, borides, boron nitrides, boron carbides, boron carbonitrides, boron oxinitrides, boron oxocarbides, boron oxocarbonitrides of the elements of groups IVa to VIIa of the periodic table and/or of aluminium and/or mixed-metal phases and/or phase mixtures of the above-named compounds and, after the coating, the substrate body is subjected to dry or wet abrasion blasting using a granular blasting abrasive. In order to provide a cutting insert with improved wear resistance and improved cutting properties, in particular improved ridge-type crack resistance and/or tensile capacity, according to the invention the hardness of the abrasive is lower than the hardness of the outermost layer of the coating or the hardness of the abrasive is higher than the hardness of the outermost layer of the coating and a layer the hardness of which is higher than the hardness of the abrasive is arranged below the outermost sheet, wherein at least portions of the layer(s) arranged above the layer the hardness of which is higher than the hardness of the abrasive are abraded by the abrasion blasting, the total layer thickness of the coating is at most 40 μm, the abrasion blasting takes place at a blasting pressure of 1 bar to 10 bar and is carried out for a period which is sufficient for 10 MPa<Δ S | 02-24-2011 |
Jörg Drobniewski, Herrenberg DE
| Patent application number | Description | Published |
|---|---|---|
| 20110045283 | ABRASION-BLASTED CUTTING INSERT AND METHOD - The invention relates to a cutting insert and a method for its production, in which a hard-metal, cermet, or ceramic substrate body is coated by means of a PVD, PCVD or CVD method with a single- or multi-layer coating of carbides, nitrides, oxides, carbonitrides, oxinitrides, oxicarbides, oxicarbonitrides, borides, boron nitrides, boron carbides, boron carbonitrides, boron oxinitrides, boron oxocarbides, boron oxocarbonitrides of the elements of groups IVa to VIIa of the periodic table and/or of aluminium and/or mixed-metal phases and/or phase mixtures of the above-named compounds and, after the coating, the substrate body is subjected to dry or wet abrasion blasting using a granular blasting abrasive. In order to provide a cutting insert with improved wear resistance and improved cutting properties, in particular improved ridge-type crack resistance and/or tensile capacity, according to the invention the hardness of the abrasive is lower than the hardness of the outermost layer of the coating or the hardness of the abrasive is higher than the hardness of the outermost layer of the coating and a layer the hardness of which is higher than the hardness of the abrasive is arranged below the outermost sheet, wherein at least portions of the layer(s) arranged above the layer the hardness of which is higher than the hardness of the abrasive are abraded by the abrasion blasting, the total layer thickness of the coating is at most 40 μm, the abrasion blasting takes place at a blasting pressure of 1 bar to 10 bar and is carried out for a period which is sufficient for 10 MPa<Δ S | 02-24-2011 |