Patents by Inventor Jurgen Mertins
Jurgen Mertins has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 6102699Abstract: A syringe for dental material has a cylinder with a dispensing socket and an open end opposite the dispensing socket. A plunger is inserted through the open end into the cylinder and is guided in the cylinder. The plunger is made of a porous, sintered material.Type: GrantFiled: December 1, 1998Date of Patent: August 15, 2000Assignee: Ivoclar A.G.Inventors: Klaus Galehr, Peter Kunkel, Jurgen Mertins
-
Patent number: 6046460Abstract: A hand-held light curing device has a light source and a light guiding device having a light receiving opening. A lens arrangement with a focusing lens is positioned between the light source and the light guiding device. The focusing lens has first and second cut-off filters on proximal and distal surfaces thereof, respectively. The cut-off filters are preferably vapor-deposited on the surfaces. Preferably, the focusing lens has a convex surface facing the light source, and the first filter has reflective properties with respect to infrared light.Type: GrantFiled: June 17, 1998Date of Patent: April 4, 2000Assignee: Ivoclar AGInventor: Jurgen Mertins
-
Patent number: 6022136Abstract: A mixing device has a swing arm and securing arms, for receiving and securing a mixing capsule within the mixing device, connected to the swing arm. The securing arms include at least one moveable securing arm that is movably connected to the swing arm and at least one stationary securing arm that is fixedly connected to the swing arm such that the moveable securing arm is moveable relative to the stationary securing arm. An inertia mass acts via at least one of the securing arms onto a mixing capsule received in the securing arms.Type: GrantFiled: April 7, 1998Date of Patent: February 8, 2000Assignee: Ivoclar AGInventors: Markus Feurstein, Bruno Senn, Jurgen Mertins
-
Patent number: 5958468Abstract: A polymerization apparatus includes a first chamber and a second chamber and a flexible, radioparent diaphragm separating the first chamber from the second chamber. A radiation source emitting polymerization-inducing radiation into the first chamber is provided. The second chamber is adapted for receiving a model and a foil, positioned between the diaphragm and the model, to be subjected to the radiation of the radiation source. A device for generating a pressure differential between the first and the second chamber for deflecting the diaphragm toward the model to thereby deform the foil at the model is provided. An adjusting device for adjusting the distance between the model and the diaphragm is provided.Type: GrantFiled: May 5, 1997Date of Patent: September 28, 1999Assignee: luoclar AGInventors: Peter Kunkel, Jurgen Mertins, Eckart Walser
-
Patent number: 5938439Abstract: A syringe for dispensing a viscous material has a cylindrical housing with a first and a second end. An outlet member is connected to the first end of the cylindrical housing. A deformable dispensing body is slidable in the cylindrical housing from the second end to the first end for dispensing the viscous material in a dispensing direction of the syringe. The deformable dispensing body is insertable into the outlet member and deformable to the shape of the outlet member, but has a dimensionally stable trailing end.Type: GrantFiled: December 3, 1997Date of Patent: August 17, 1999Assignee: Ivoclar A.G.Inventors: Jurgen Mertins, Frank Muller, Klaus Galehr
-
Patent number: 5922605Abstract: A polymerization apparatus includes a support plate for supporting a workpiece to be polymerized and a hood comprising a light source for guiding light to the workpiece such that the light impinges on at least two sides of the workpiece. The hood is liftable relative to the support plate so as to allow access to the workpiece when in a lifted position. A heat source for heating the workpiece is provided. A control device controls the function of the polymerization apparatus. A method for operating the polymerization apparatus includes the steps of heating the workpiece to a desired temperature after switching on the light source, maintaining the desired temperature for a desired polymerization cycle time period, and subsequently shutting down the light source and the heat source for a final polymerization cycle time period.Type: GrantFiled: May 2, 1997Date of Patent: July 13, 1999Assignee: Ivoclar AGInventors: Markus Feurstein, Jurgen Mertins
-
Patent number: 5871354Abstract: An applicator for highly viscous materials such as dental filling materials has a housing and a first and second jamming element positioned spaced from one another in a longitudinal direction in the housing. A coupling rod is connected to the second jamming element. A piston rod is supported in the housing. An actuating element is positioned at the housing and connected to the piston rod for moving the piston rod in a forward direction from an inactive position into a working position, and in a rearward direction from the working position into the inactive position. The first jamming element is jammed, when the actuating element actuates the piston rod in the forward direction, and is moved with the piston rod in the forward direction. The second jamming element is jammed by a spring force in the rearward direction so as to rest at the housing, when the actuating element actuates the piston rod in the forward direction.Type: GrantFiled: May 5, 1997Date of Patent: February 16, 1999Assignee: Ivoclar AGInventors: Peter Kunkel, Jurgen Mertins
-
Patent number: 5788485Abstract: A kiln has a bottom part with a support for goods to be fired and a top part with a firing chamber. A bearing arrangement including at least one pivot joint pivotably connects the bottom part and the top part. The bearing arrangement includes a lift bearing cooperating with the at least one pivot joint.Type: GrantFiled: November 18, 1996Date of Patent: August 4, 1998Assignee: Ivoclar AGInventors: Robert Grunenfelder, Jurgen Mertins, Horst Ulbricht
-
Patent number: 5025028Abstract: The present invention provides compounds of the general formula: ##STR1## wherein Ar is a phenyl radical optionally substituted by alkyl, alkenyl, alkoxy, alkylthio, alkanoyl, hydroxyl, hydroxyalkyl, carboxyl, alkoxycarbonyl, carbamoyl, nitro, amino or halogen, A is a straight-chained or branched, saturated or unsaturated C.sub.1 -C.sub.8 aliphatic hydrocarbon radical which is optionally substituted by a hydroxyl group, n is 0, 1 or 2, B is a straight-chained or branched, saturated or unsaturated C.sub.1 -C.sub.8 -aliphatic hydrocarbon radical and R is 5-(1H)-tetrazolyl, --CO--NH-tetrazolyl, ##STR2## Cn, SCN, OH, halogen, 5-(1H)-tetrazolylthio, ##STR3## or CO--O--NH--R.sub.1, wherein R.sub.Type: GrantFiled: January 17, 1990Date of Patent: June 18, 1991Assignee: Boehringer Mannheim GmbHInventors: Erhard Reinholz, Walter-Gunar Friebe, Wolfgang Kampe, Jurgen Mertin, Otto-Henning Wilhelms
-
Patent number: 4906666Abstract: The present invention provides compounds of the general formula: ##STR1## wherein Ar is a phenyl radical optionally substituted by alkyl, alkenyl, alkoxy, alkylthio, alkanoyl, hydroxyl, hydroxyalkyl, carboxyl, alkoxycarbonyl, carbamoyl, nitro, amino or halogen, A is a straight-chained or branched, saturated or unsaturated C.sub.1 -C.sub.8 aliphatic hydrocarbon radical which is optionally substituted by a hydroxyl group, n is 0, 1 or 2, B is a straight-chained or branched, saturated or unsaturated C.sub.1 -C.sub.8 -aliphatic hydrocarbon radical and R is 5-(1H)-tetrazolyl, --CO--NH-tetrazolyl, ##STR2## CN, SCN, OH, halogen, 5-(1H)-tetrazolylthio, ##STR3## or CO--O--NH--R.sub.1, wherein R.sub.Type: GrantFiled: February 5, 1987Date of Patent: March 6, 1990Assignee: Boehringer Mannheim GmbHInventors: Erhard Reinholz, Walter-Gunar Friebe, Wolfgang Kampe, Jurgen Mertin, Otto-Henning Wilhelms