| Patents for F16B 31 - Screwed connections specially modified in view of tensile load; Break-bolts (2,772) |
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| 11/28/1989 | US4883396 Dual expansion and non-expansion anchor |
| 11/21/1989 | US4881316 Process for setting a threaded torque-limited collar and pin joint |
| 10/31/1989 | US4876895 Engineering constructive load cell |
| 10/25/1989 | EP0338973A2 Fastener with guiding washer |
| 10/17/1989 | US4874275 Secure three-piece threaded fastener, and method |
| 09/27/1989 | CN1035870A Stepped thread and cutoff thread joint exhibiting excellent fatigue resistance |
| 09/21/1989 | DE3807918A1 Safety screw |
| 09/19/1989 | US4867624 Tamper proof bolt and nut |
| 08/22/1989 | US4858299 Process for making a joint with a torque-limited collar |
| 08/15/1989 | US4856411 Overload release system for an axially movable bolt |
| 08/08/1989 | US4854798 In-place tensioning washer |
| 07/26/1989 | EP0203003B1 Remotely-controlled assembling device for two items |
| 07/11/1989 | US4846614 Differential thread for transfer of screw thread forces |
| 07/11/1989 | US4846001 Ultrasonic load indicating member |
| 07/05/1989 | EP0323166A2 Wrench |
| 06/29/1989 | WO1989005713A1 Tool for and a method of tightening a threaded fastener |
| 06/27/1989 | US4842466 Lightweight fastener |
| 06/20/1989 | US4840526 Gripping device for tensioning screwing elements |
| 06/20/1989 | US4840521 Element for filtering stress variations in a bolted assembly |
| 06/14/1989 | EP0320324A1 Screwed connecting element unit prestressing device |
| 06/13/1989 | US4838746 Break-away rivet configuration |
| 06/13/1989 | CA1255520A1 Fluid actuated nut |
| 06/06/1989 | US4836727 Torque limited pressed and forged metal nut members |
| 06/06/1989 | US4835873 Gauging device and method for coupling threaded, tubular articles and a coupling assembly |
| 06/06/1989 | CA1255127A1 Optimized fastener construction system and method |
| 05/31/1989 | CN2038569U Shockproof locknut |
| 05/24/1989 | DE3738409A1 Screw |
| 05/23/1989 | US4832547 Breaking type expansion fastener |
| 05/10/1989 | EP0315501A1 Deformable washer, especially allowing to predetermine the minimal clamping force of a nut or a bolt |
| 04/25/1989 | US4824279 Device and method for metal stitching |
| 04/25/1989 | US4823606 Diaphragm transducer for sensing loading |
| 04/11/1989 | US4819522 Torque-off collar for installation by universal equipment |
| 04/11/1989 | CA1252319A1 Expanding dowel with setting-force indicator |
| 04/06/1989 | WO1989003026A1 Preloading clamp |
| 04/06/1989 | WO1989002807A1 Force applicators |
| 04/05/1989 | EP0309452A1 Load indicating fastener, power tool for use with same and method tightening the fastener |
| 04/04/1989 | US4818119 Hot bearing warning bolt |
| 04/04/1989 | CA1251962A1 Threaded fastener having minimized length and weight and method to make it |
| 04/04/1989 | CA1251926A1 Method and device for the determination of the screwing torque of a tubular, conically threaded, joint having an engagement stop, useable in the oil industry |
| 03/28/1989 | CA1251666A1 Pin for a pin and swaged tubular member type of fastener |
| 03/21/1989 | CA1251343A1 Pin and process for its manufacture |
| 03/16/1989 | DE3829030A1 Verstellbare riegelvorrichtung Adjustable latch device |
| 03/14/1989 | US4812096 Self-tightening nut |
| 03/07/1989 | US4809556 Preloading clamp |
| 03/07/1989 | CA1250767A1 Hydraulic nuts and bolts |
| 01/31/1989 | US4801216 Device for generating a prestress when two connection parts are coupled rigidly |
| 01/25/1989 | EP0299976A1 Threaded fastener for workpieces of composite materials. |
| 01/10/1989 | CA1248372A1 Fastener device |
| 12/28/1988 | CA1247407A Shear-resistant fastener |
| 12/27/1988 | US4793751 Opti-mechanical torque indicating connecting member |
| 12/06/1988 | CA1245884A1 Tension indicating washer for smooth and irregular surfaces |
| 11/23/1988 | EP0292164A2 Hose pipe |
| 11/15/1988 | US4784549 Torque-limited collar |
| 11/09/1988 | EP0290291A2 Hose pipe |
| 10/20/1988 | WO1988008088A1 Load indicating fastener, power tool for use with same and method tightening the fastener |
| 10/19/1988 | EP0287381A2 Fastening device |
| 10/18/1988 | US4778318 Self-locking blind fastener |
| 10/11/1988 | US4776738 For securing to a workpiece means |
| 09/27/1988 | US4773272 Apparatus and method for measuring bolt tension in situ |
| 09/20/1988 | US4772166 Dual expansion anchor |
| 09/20/1988 | US4771999 Clamping apparatus |
| 09/20/1988 | CA1242089A1 Apparatus to mechanically stress a bolt-type fastener |
| 09/06/1988 | CA1241734A1 Ultrasonic process for measuring stress in a bolt or similar part adapted to this method |
| 08/09/1988 | US4762450 Damage resistant plastic expansion nut and screw therefor |
| 08/03/1988 | EP0276708A1 Mechanical roof fastener |
| 07/27/1988 | EP0276153A2 Bone screw |
| 07/21/1988 | DE3700579A1 Temperature-compensation element for thermally loaded screw-connections |
| 07/12/1988 | US4756652 Threaded nut resistant to removal |
| 06/07/1988 | US4749319 Anti-stripping sheet metal screw |
| 06/07/1988 | US4748806 Attachment means |
| 05/18/1988 | EP0129566B1 Ultrasonic method for measuring strains in a bolt or similar part adapted to said method |
| 05/17/1988 | US4744187 Mechanical roof fastener |
| 05/10/1988 | US4743138 Device for coupling two flanged shaft ends |
| 05/10/1988 | US4742735 Driver for a lobed collar |
| 04/21/1988 | DE3635605A1 Safety nut for exterior fastenings |
| 04/19/1988 | US4738382 Clamping apparatus for spare tire |
| 03/30/1988 | EP0261232A1 Torque limiting fastener. |
| 03/24/1988 | WO1988002074A1 Bolted coupling |
| 03/22/1988 | CA1234303A1 Torque-limited threaded locking fastener, and method for setting the same |
| 03/17/1988 | DE3630863A1 Bone screw |
| 03/08/1988 | US4729703 Double nut |
| 02/16/1988 | US4725176 Fluid actuated nut |
| 02/09/1988 | US4723352 Method of applying and removing fluid actuated nut |
| 01/19/1988 | US4720225 Threaded fastening systems |
| 01/19/1988 | US4720223 Controlled preload, self-retracting captive fastener assembly |
| 12/29/1987 | US4715756 Nut and washer assembly |
| 12/01/1987 | US4709654 Indicator for loose lug nuts |
| 11/24/1987 | US4708550 Resistance between nut and bolt |
| 11/19/1987 | WO1987007089A1 Screw-coupled connectors |
| 11/03/1987 | US4703711 Load-indicating devices |
| 10/21/1987 | EP0242273A1 Gripping device for tensioning bolts |
| 10/08/1987 | WO1987005977A1 Torque limiting fastener |
| 10/08/1987 | WO1987005976A1 Threaded fastener for workpieces of composite materials |
| 10/07/1987 | EP0240296A1 Screw-Threaded fasteners |
| 10/06/1987 | US4697966 Pressurized clamp for securing tools or workpieces |
| 09/16/1987 | EP0237143A1 Fastener assembly |
| 09/08/1987 | US4692076 Expansion dowel with anchored state indicator |
| 09/08/1987 | US4692075 Panel fastener |
| 08/18/1987 | US4687392 Torque limiting fastener |
| 08/18/1987 | US4686859 Load indicating member, apparatus and method |