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Kruszynski

Jacek Kruszynski, Stuttgart DE

Patent application numberDescriptionPublished
20090123244Machine Tool - The invention relates to a machine tool, particularly a machine reamer, comprising a shaft-type base and a replaceable cutter head which frontally protrudes from the base. An axially protruding extension of said cutter head engages into a frontal receptacle that is fixed to the base, the cutter head being removably clamped in said receptacle by means of a clamping screw which penetrates the replaceable cutter head in a truly axial direction. The screw head of the clamping screw rests against a face of the replaceable cutter head. The extension of the replaceable cutter head is provided with a polygonal part which is complementary to a truly axial polygonal hole that is fixed to the base and is penetrated by the polygonal part. The extension is further provided with an externally conical part which adjoins the polygonal part, engages into a conical hole that is fixed to the base, and is complementary to said conical hole while the clamping screw is screwed into a central internal thread that is fixed to the base. Preferably, the base is equipped with a functional insert which is rigidly connected to the base and contains the internal thread, the polygonal hole, and/or the conical hole.05-14-2009
20090238649Indexable insert and use of the indexable in a solid drill - The invention relates to an indexable insert for solid drills comprising four identical cutting edges (09-24-2009
20090283975Junction Between Two Components of a Rotating Tool System - The invention relates to a junction (11-19-2009
20100183384Machine tool and cutting ring for a machine tool - The invention relates to a machine tool for use in tool machines, comprising a cutting element which is preferably configured as a cutting ring and at least two insert seats that are provided in the cutting element at distance to each other in the circumferential direction. The insert seats are fitted with at least one group of at least two identical insert tips that are detachably arranged therein and that have one working edge each, the effective working edges of the insert tips of one group being cut to the same nominal size. The insert tips are configured as indexable inserts, every single indexable insert of a group being associated with a defined insert seat in all possible positions of adjustment, and the indexable inserts of a group having at least two working edges each, one of these edges being always in the effective and at least one other edge being in the ineffective position, depending on the position of the indexable inserts in the associated insert seats. The indexable inserts of a group assume identical positions of adjustment in which defined working edges of every indexable insert of a group have the same orientation in the associated insert seat, the working edges of the indexable inserts of a group being cut to a nominal size in all common positions of adjustment.07-22-2010

Patent applications by Jacek Kruszynski, Stuttgart DE

Marian Kruszynski, King Of Prussia, PA US

Patent application numberDescriptionPublished
20110046348METHODS OF PREPARING PEPTIDE DERIVATIVES - The invention relates to methods of preparing peptide hydrazides useful in as intermediates in preparing derivatized peptides and amenable to conversion to reactive azide comprising species. The invention relates to chemical methods of preparing such species from protected peptide-resins containing the aspartyl or glutamyl residues with orthogonal side-chain carboxylic acid protecting groups ester of Asp and Glu. These esters can be selectively converted to the corresponding side-chain hydrazides useful in various synthetic applications02-24-2011

Marian F. Kruszynski, King Of Prussia, PA US

Patent application numberDescriptionPublished
20090215986Solution Synthesis of Peptide Cell Growth Stimulators - A solution phase synthetic method for preparing basic tripeptides of the formula Gly-Xaa-Gly-X which have in various biological properties such as stimulating protein production when used as additives in a bioreactor. The basic tripeptides of the invention may be produced on gram or kilogram scale.08-27-2009