Patents
Sitemap › F16 - Engineering elements or units; General measures for producing and maintaining effective functioning of machines or installations; Thermal insulation in general › F16B - Devices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges; Joints or jointing › F16B 31 - Screwed connections specially modified in view of tensile load; Break-bolts
Patents for F16B 31 - Screwed connections specially modified in view of tensile load; Break-bolts (2,772)
12/1999
12/16/1999WO1999064201A1 Jackbolts for multi jackbolt tensioners
12/02/1999WO1999061196A2 High temperature bolting system
12/01/1999EP0959794A1 Screw for insertion into a bone and tool for removing this screw
11/1999
11/30/1999US5992122 Attachment element
11/11/1999WO1999057532A2 Method and device for checking screwed connections
11/11/1999WO1999057446A1 Method and device for producing and checking screwed connections
11/11/1999DE19828700A1 Bolt with information storage device for high quality joints enables simple documentation of e.g. tightening force
11/11/1999DE19819300A1 Verfahren und Vorrichtung zum Herstellen und Prüfen von Schraubverbindungen Method and apparatus for producing and testing threaded joints
10/1999
10/27/1999CN1045914C Spiral device for fastening
10/19/1999US5967724 Fastener assembly
10/19/1999US5967721 Loosening-resistant threaded fastener system and method of use
10/13/1999EP0948422A1 An axial tensioned bolting system and method thereof
09/1999
09/14/1999US5951222 Bolting system with secured nuts, and method thereof
09/10/1999WO1999027260A3 Clamping device
09/08/1999EP0940590A1 Connecting means
09/08/1999CN1228142A Method and apparatus for indicating load
09/07/1999US5946789 Method of and device for elongating and relaxing a stud
09/01/1999EP0938983A2 Torque angle limiting wheelnut
08/1999
08/26/1999DE19848902A1 Clamp
08/17/1999US5938964 High frequency heating method of a bolt with hole
08/17/1999US5938383 Connector assembly and method of forming same
08/12/1999WO1999040331A1 Screw tightening tool
08/11/1999EP0935078A1 Device for detecting a fatigue rupture of a threaded connection
08/11/1999EP0804689B1 Pre-tensioning device for fastening elements and method for pre-tensioning a fastening element
08/10/1999US5934853 Nut and device for tightening provided with the same
08/04/1999EP0932531A1 Pretensioner
08/03/1999US5931618 Direct tension indicating washers
08/03/1999CA2149621C Improved high strength blind bolt with uniform high clamp over an extended grip range
07/1999
07/27/1999US5927921 Enhanced fatigue nut
07/27/1999US5927918 Trailer ball fastening assembly
07/27/1999US5927917 Torque limiting device
07/27/1999US5927157 Axial tensioned bolting system and method thereof
07/14/1999EP0928660A1 Bolt attaching and detaching device
07/07/1999EP0745194B1 Electromagnetic acoustic transducer for bolt tension and load measurement
07/06/1999US5919006 Tensionable cable bolt with mixing assembly
06/1999
06/30/1999CN1221079A Nut, and device for tightening provided with the same
06/22/1999US5913647 Fastener tension indicator
06/16/1999EP0819222B1 Fastener
06/09/1999CA2224538A1 Torque gauge assembly
06/03/1999WO1999027260A2 Clamping device
05/1999
05/20/1999WO1999024724A1 Self-tightening nut for use with wooden members
05/06/1999EP0913593A1 Nut and nut tightening and loosening arrangement
05/06/1999EP0912846A1 Seals for hydraulic assemblies
05/04/1999US5899123 Method of fastening a fastener to a workpiece
04/1999
04/28/1999EP0911119A2 Method for determining the installed torque in a screw joint at impulse tightening and a torque impulse tool for tightening a screw joint to a predetermined torque level
04/28/1999EP0910750A1 Method and apparatus for indicating a load
04/14/1999EP0907466A1 A safety device at preloaded bolts
04/06/1999US5890857 Fastener system including a clamp-force indicating insert
04/01/1999DE19742310A1 Screwdriver with over-tightening protection
03/1999
03/30/1999US5888041 Lock nut
03/23/1999US5885034 Washer for use in mining
03/10/1999CN1210456A Screw for insertion into a bone and tool for removing this screw
02/1999
02/25/1999WO1999009327A1 Load indicating fastener systems method and apparatus
02/17/1999EP0896657A2 Minimizing the effect of bending on ultrasonic measurements in a load-bearing member
02/16/1999US5871319 Assembly arrangement including cuff with radially inwardly protruding fastening region
02/04/1999DE19738239C1 Explosive anchor bolt
02/02/1999US5865581 Free running prevailing torque nut
01/1999
01/31/1999CA2243344A1 Bolting system
01/28/1999DE19705346C1 Method of producing screwed connection between two sheets with predetermined pressure
01/21/1999WO1999002870A1 Torque limiting device
01/19/1999US5860778 Torque- and preload-controlled fastener and associated method of fastening
01/19/1999CA2125502C Tightening screw
01/12/1999US5857816 Torque-limiting fastening device
01/05/1999US5855460 Screw and nut assembly
12/1998
12/10/1998WO1998055269A1 Screwdriver adapter
12/10/1998DE19723899A1 Method of producing screwed connection between two sheets with predetermined pressure
12/09/1998EP0883299A2 Apparatus and method for coding and decoding video images
12/01/1998US5842263 Method and manufacture of an axial tensioned bolt
11/1998
11/24/1998CA2092018C Tightening screw
11/18/1998EP0878271A2 A hydraulic nut
11/18/1998CN1198977A Hydraulic nut
11/04/1998EP0874956A1 Clamping screw
11/04/1998EP0874955A1 Direct tension indicator washer
10/1998
10/22/1998WO1998046892A1 Free running prevailing torque nut
10/15/1998DE19723056C1 Accessory tool for screw fasteners
09/1998
09/23/1998EP0593742B1 Method of and device for mechanical tensioning of bolts, studs and the like
09/22/1998US5810533 Screw for fastening
08/1998
08/27/1998DE19707411A1 Maritime safety bolt
08/20/1998WO1998035791A1 Method and device for producing screw assemblies
08/18/1998US5795116 Arrangement in a rotatable device to protect against over-tightening
07/1998
07/29/1998EP0655025B1 Mechanical tensioner
07/28/1998US5784738 For making a hinge connection between first and second webbing
07/22/1998EP0854539A1 Electrical connections device
07/14/1998US5779416 Bolt/stud and nut for enhanced high-cycle fatigue capability
07/14/1998US5779409 Torque limiting retention subassembly for floating insert threaded fastener assemblies
07/02/1998WO1998028548A1 Fastener tension indicator
07/02/1998CA2275872A1 Fastener tension indicator
06/1998
06/30/1998US5772378 For fastening pieces together
06/30/1998US5772252 Pipe junction holder with a novel torque-limiting device
06/25/1998WO1998026899A1 An axial tensioned bolting system and method thereof
06/25/1998CA2274917A1 An axial tensioned bolting system and method thereof
06/23/1998US5769581 Direct tension indicating washers
05/1998
05/20/1998EP0843105A2 Fixing device.
05/20/1998DE19645886A1 Fastening screw, e.g. for pump attached to engine housing
05/05/1998US5746555 Connector with engagement indicator
05/05/1998US5746096 Break-off drillpoint screw
05/05/1998CA2089609C Rockbolt
04/1998
04/29/1998EP0837993A1 Device for measuring the extension of a threaded bolt or screw
04/22/1998CN1179815A Fastener
04/15/1998EP0836015A2 Method of and device for mechanical tensioning of bolts, studs and the like
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