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TORQUE RESPONSIVE NUT OR BOLT DRIVING CONNECTION

Subclass of:

411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
411001000TORQUE RESPONSIVE NUT OR BOLT DRIVING CONNECTION44
20100296891Anchor Nut Made of Fibre Reinforced Plastic - The invention relates to an anchor nut (11-25-2010
20110014004BOLT AND NUT WITH ROTATION PROHIBITING MECHANISM - A set of a bolt and a nut having a rotation prohibiting mechanism comprises a foldable part (01-20-2011
20110268526Injection Molded Torque Nut with Internal Recession - A torque nut includes a threaded passageway and a groove. The groove has its opening facing the passageway. A breakaway insert having a major body portion is formed in the passageway, and a tab connected to the major body portion is formed in the groove, for example, by injection molding. The tab connected to the major body portion prevents rotation of the insert in the passageway. In one use, a resin component, a catalyst component and a first end of a rock-bolt are positioned in a bore hole. The torque nut is threaded onto the opposite end of the rock-bolt. Rotation of the torque nut rotates the rock-bolt, mixing the components. After the components set, increased torque is applied to the torque nut to fracture the insert and move the nut up the threaded end of the rock-bolt against roof stabilizing components.11-03-2011
20130136557Bolt assembly - A bolt assembly is provided with a bearing seat, a screw, a pull member and a cover. The bearing seat has a through hole, a concave portion and an accommodation room. The screw is coupled to the bearing seat. The screw includes a threaded portion, a head portion and a pull groove. The threaded portion extends out of the through hole. The head portion is positioned in the concave portion. The pull groove is located corresponding to the accommodation room. The pull member is located on top of the bearing seat. The pull member has at least one pull point at a lower end thereof. The pull point extends in the accommodation room and is located corresponding to the pull groove of the screw. The cover is adapted to cover the bearing seat and confines the pull member in the cover.05-30-2013
20140334894Screwable Element for Fastening a Conduit to a Counter-Piece - A screwable element (11-13-2014
20150050098LOCKING NUT FOR TOILET SEAT - A locking nut includes a nut top, a nut middle, and a slip section. The nut top includes an integrally-formed bushing. The nut middle includes a threaded central bore suitable for threaded engagement on a threaded installation bolt, as well as a plurality of ratchet gears on an outer surface where each gear has a respective first slip surface and a first drive surface. The slip section includes a plurality of cantilevered posts having a respective free end, wherein on each post are formed a respective second slip surface and a second drive surface. When the slip section is rotated in a tightening direction, the slip section and the nut middle rotate together until a torque threshold is reached, where the second slip surfaces override the first slip surfaces to limit the applied torque. The locking nut includes structure to produce sound when the torque threshold has been reached.02-19-2015
20160123368FASTENER FOR BLIND HOLE - Provided is a tension control bolt assembly for securing two or more substrates together through a blind hole. The assembly includes a bolt having a central shaft attached to a proximal head. The bolt includes one or more engagement surfaces on a proximal portion configured to be engaged by an associated application tool. The proximal portion is mechanically separable from the central shaft. The tension control bolt assembly also includes a first washer which defines structure to enable the bolt and the first washer to be inserted into a vertically oriented substrate hole. The tension control bolt assembly includes a second washer and a nut. One example includes a bolt having one or two complete revolutions of threads exposed after proper tightening of the nut. Another example includes a serrated surface configured to limit rotational motion during a fastening operation.05-05-2016
20170234353SELF-ATTACHING FASTENER AND PANEL ASSEMBLY, AND METHOD OF ATTACHING08-17-2017
411002000 Frangible connection 28
20080226411DUAL TORQUE SETTING TENSION CONTROL FASTENER - A tension control fastener having a cylindrical shank having a pair of adjacent breakaway sections at one end. The outermost breakaway section engages an installation tool and shears off from the fastener at a first lower predetermined amount of torque, while the inner breakaway section shears off from the fastener at a second higher predetermined amount of torque.09-18-2008
20090041559SCREW WITH BREAKAWAY AND METHODS OF USING THE SAME - A fastener with a breakaway and methods of using the same. In one embodiment the fastener is a screw having a head and elongated stem, adapted to be easily manipulated by a user when using the screw as a fastener in a hinge or joint. A means of holding a screw by providing a breakaway tab or non-threaded portion of the elongated stem which can be used to align and insert the screw into a screw hole in the process of engaging threads in the screw hole with threads of the screw. After engaging the threads in the screw hole, such as after the screw has been essentially completely inserted into the screw hole, the breakaway tab or non-threaded portion of the elongated stem of the screw may be broken off at a breakaway and discarded.02-12-2009
20110044782FASTENER FOR AUTOMOTIVE COMPONENTS - A fastener for securing an undercover panel to an underside of a vehicle is disclosed. The fastener includes a body having a bore for receiving a threaded bolt extending from the underside of the vehicle, a flange for engaging a first side of the undercover panel, a plurality of resiliently deformable engaging fingers for allowing insertion of the bolt into the bore and to resist removal of the bolt from the bore, and a plurality of resilient engaging members for enabling the engaging members to pass in a first direction through an aperture in the undercover panel, and to resist removal of the fastener from the panel. A plurality of reinforcing members extend from the body to engage a respective engaging member, as a result of forces urging said undercover panel towards the underside of the vehicle, to resist flexing of the engaging members away from the body.02-24-2011
20110123287Screw With Breakaway And Methods Of Using The Same - A fastener with a breakaway and methods of using the same. In one embodiment the fastener is a screw having a head and elongated stem, adapted to be easily manipulated by a user when using the screw as a fastener in a hinge or joint. A means of holding a screw by providing a breakaway tab or non-threaded portion of the elongated stem which can be used to align and insert the screw into a screw hole in the process of engaging threads in the screw hole with threads of the screw. After engaging the threads in the screw hole, such as after the screw has been essentially completely inserted into the screw hole, the breakaway tab or non-threaded portion of the elongated stem of the screw may be broken off at a breakaway and discarded.05-26-2011
20120045291SEPARATION FASTENER WITH FRANGIBLE NUT - A separation fastener assembly includes a housing defining a cavity. A frangible nut is disposed in the cavity. The nut includes a plurality of nut segments. The one-piece frangible nut greatly reduces existing assembly problems and difficulties. Adjacent nut segments are interconnected at fracture lines. A bolt has an end coupled to the nut. A movable element is disposed in the housing and movable from a first position to a second position. In the first position, the nut segments are restrained from radial expansion. In the second position the nut segments are permitted to radially expand for releasing the fastener assembly.02-23-2012
20130101369TRIPPED UNLOCKING DEVICE, CONNECTING TWO DETACHABLE SUBASSEMBLIES - A device for rapidly separating two subassemblies under the action of a pyrotechnic gas generator. The device comprises a segmented nut (04-25-2013
20130280004TORQUE CONTROL BOLT FOR HOSE CLAMP - Disclosed is a torque control bolt for a hose clamp, which is configured to transmit a torque from a tool to a fastening bolt of a hose clamp to induce the fastening of the hose clamp, and then to be ruptured to prevent the transmission of torque exceeding a set value so as to prevent the damage of the hose clamp and the hose. The control bolt includes: a rupture bolt with a fastening body to transmit the torque from the tool to a head of the fastening bolt; a coupling unit formed on the head and the rupture bolt and configured to keep the coupling force between the head and the rupture bolt; and a rupture section formed on the rupture bolt and configured to prevent the torque from the tool from being transmitted to the fastening bolt when the torque exceeds the set value.10-24-2013
20140241826FRANGIBLE FASTENER - This disclosure relates to a frangible fastener configured such that a first end of the fastener separates from a second end of the fastener responsive to a breaking force. The fastener may comprise a head portion, a frangible portion, a tool engagement portion, a threaded portion, and/or other portions. The frangible portion may include a frangible body. The frangible body may form a plurality of through wall cuts. The frangible portion may be configured such that the breaking force is proportional to a quantity of through wall cuts, a cross sectional area of through wall cuts, and/or a shape of through wall cuts. The frangible portion may be configured such that the breaking force is proportional to a wall thickness of the frangible body. The location of the tool engagement portion may minimize and/or eliminate torsional loading of the frangible portion during tightening with a tightening tool.08-28-2014
20140369783SELF-RETAINING SHEAR PIN FOR BLIND MOUNT LOCATION - A shear pin connection for use in a difficult to access location has a bolt head to be positioned at an inner end of a bearing. A bushing is received between the bolt and an inner periphery of the bearing. A lock member is positioned between an inner end of the bushing and the bolt head. The lock member is radially expandable, and has a free radially outer dimension that is smaller than an inner dimension of the inner bore. The lock member is expandable to have an expanded radially outer dimension that is greater than the inner dimension of the inner bore. A nut is tightened on the outer end of the bolt. The nut causes the bushing to move relative to the bolt, and causes the lock member to expand radially. A shackle connection for a gas turbine engine and an aircraft are also disclosed.12-18-2014
20150023753PLUG FOR CLOSING AN APERTURE DEFINED IN MACHINE COMPONENT - A plug for closing an aperture defined in a machine component includes a flange, a first portion, and a second portion. The first portion includes a first set of threads configured at a first pitch to engage with threads on the machine component, and a second set of threads configured at a second pitch to lock with the threads on the machine component and retain the first portion within the aperture. The second portion includes a neck portion, and a bolt head extending from the neck portion. The neck region is configured to withstand a pre-determined maximum torque load. The bolt head is operable to threadably engage the first set of threads and the second set of threads with the threads of the machine component and allow shearing of the neck portion if a torque applied on the bolt head exceeds the pre-determined maximum torque load.01-22-2015
411003000 Between concentric elements 18
20110103915Screw With Breakaway and Methods of Using The Same - A fastener with a breakaway and methods of using the same. In one embodiment the fastener is a screw having a head and elongated stem, adapted to be easily manipulated by a user when using the screw as a fastener in a hinge or joint. A means of holding a screw by providing a breakaway tab or non-threaded second portion of the elongated stem which can be used to align and insert the screw into a screw hole in the process of engaging threads in the screw hole with threads of the screw. After engaging the threads in the screw hole, such as after the screw has been essentially completely inserted into the screw hole, the breakaway tab or non-threaded second portion of the elongated stem of the screw may be broken off at a breakaway and discarded.05-05-2011
20120207563Torque-Limited Attachment Device - One or more embodiments of the present invention relate to a torque-limited attachment device, having a first head piece with at least one shaped element for the purpose of establishing a positive-fit connection to an attachment tool, and having a second head piece which has at least one threading, wherein both head pieces are connected to each other, forming at least one predetermined breaking point which breaks at a limit torque between the two head pieces such that a first breakaway surface, the same being functionally assigned to the first head piece, and a second breakaway surface, the same being functionally assigned to the second head piece, are created, and wherein at least the second head piece has a base material inside, the same having a corrosion-resistant surface coating.08-16-2012
20130343829Plastic High Heat Fastener - A polymeric fastener includes a body having multiple sides adapted to accept a tool for applying torque to the body to axially rotate the body with respect to a body longitudinal axis. A flange integrally connected to the body extends perpendicular to the longitudinal axis. A wave-shaped washer integrally connected to the flange has multiple valleys interposed between multiple oppositely directed peaks. Multiple triangular shaped frangible connectors integrally join the flange to the wave-shaped washer. Each frangible connector is integrally connected at a first end to the flange, and is integrally connected at an opposite connecting tip to an individual one of the peaks. The connecting tip has a reduced thickness compared to the first end to induce fracture of each frangible connector at the connecting tip.12-26-2013
20140037398BLIND RIVET BOLT02-06-2014
20140147226SECURITY BOLT - The present invention relates to a security bolt understand a threaded bolt screw body (05-29-2014
20150016917Controlled Torque Fasteners and Methods for Using Same - A controlled torque fastener for use with a substrate includes a first driver engagement feature and a primary fastener portion connected to the first driver engagement feature. The primary fastener portion includes a threaded fastening portion and a second driver engagement feature connected to the threaded fastening portion. The first driver engagement feature is configured to be engaged by a first driver to enable the first driver to tighten the controlled torque fastener onto the substrate until the first driver engagement feature breaks off from the primary fastener portion. The second driver engagement feature includes a socket configured to receive a second driver and to enable the received second driver to apply a torque to the primary fastener portion.01-15-2015
20150071728Torque Controlling Break Screw - A torque controlling break screw is provided for securing a wire or cable within a connector. The break screw comprises a nut, a thin-walled, hollow screw and a torque limiting feature between the nut and the screw.03-12-2015
411004000 Shear pin connecting means 1
20090169324Fastener with shear bushing - A fastener is disclosed including a threaded male fastener and a shear bushing for coupling thin walled structures together. The shear bushing having an internal through opening and a shear ring constructed to project across an interface of adjacent walls is operable for absorbing shear loads transmitted into the fastener from a fastened structure. The male fastener includes a threaded portion extending through the shear ring for engaging a threaded female receiver.07-02-2009
411005000 Axially displaced 10
20090185879Fastener system with frangible member - A fastener system having a threaded shaft and a threaded body assembly. The threaded body assembly includes first and second bodies each having a threaded bore. A frangible member couples the two bodies together in an initial configuration. The two bodies are threaded onto the shaft in their initial configuration and, after one of the bodies has reached its final position on the shaft, the other body can be rotated relative to the one body and the threaded shaft thereby severing the frangible member and bringing engagement surfaces on the two bodies into bearing contact to inhibit loosening. The two bodies include recesses in their respective engagement surfaces. At least one of these recesses provides a space in which a stub of the frangible member is received when the two bodies are engaged together. The fastener system can be employed with the locking mechanism of an adjustable steering column assembly.07-23-2009
20090191019FASTENER SAFETY RETENTION - A safety fastener capable of retaining portions thereof in the event of breakage is disclosed. The safety fastener includes a through hole along the longitudinal axis of a shaft. A secondary member, such as a wire rope, may be disposed within the through hole. Capturing members, such as balls sized larger than the through holes may be swaged or crimped to both ends of the secondary member, thereby capturing the shaft between them. In the event of breakage, portions of the shaft may remain substantially in place being confined by the secondary member and capturing members. Inspection of the safety fastener may include determining that the secondary member is loose relative to the shaft, thereby indicating that no gaps or separation has occurred in the shaft.07-30-2009
20090196708Shear screw - A shear screw has predetermined breaking points in two planes, separated axially from one another, and it has centrally a blind hole extending over a substantial length and having a cross section which is suitable for transmitting a torque to the shear screw by means of a pin-like tool of adapted dimensions which can be inserted into the blind hole. The blind hole extends to about level with the predetermined breaking point which is arranged in the lower region, facing the end face of the shear screw, of the latter and has a strength greater than that of the other predetermined breaking point.08-06-2009
20090245965TORQUE LIMITING DEVICE FOR INSULATED PLUG - The present invention includes an insulated plug for use in a high voltage device including a torque limiting bolt, including a first hex element, a second hex element, and a shearable shaft element. Alternatively, the invention provides an insulated plug assembly for use in a high voltage device including an insulated plug having a torque limiting bolt, where the torque limiting bolt includes a first hex element attached to the insulated plug and a second hex element attached to the first bolt head via a shearable connector, the assembly further including a separate BIP cap.10-01-2009
20110150596SHEAR COUPLING ASSEMBLY FOR USE WITH ROTARY AND RECIPROCATING PUMPS - A shear coupling assembly utilizes a second coupling member, a first coupling member and a locking member which is inserted into a bore in the first coupling member to connect between the second coupling member and the first coupling member. In embodiments where a pretension is applied to the shear neck, the locking member maintains the pretension in the shear neck. The bore of the first coupling member has a profiled section which corresponds to a profiled section on the second coupling member which when mated together permit torque to be transferred for co-rotating the second coupling member with the first coupling member for use in rotary pump operations. Advantageously, the profiled portions and the shear neck are encased in the bore of the shear coupling assembly and are protected from corrosive wellbore fluids.06-23-2011
20120201625ANCHOR BOLT, ANCHOR, CONNECTING NUT AND CLAMPING NUT - An anchor bolt comprising: a shaft part with a male screw thread; and a head part connected to the shaft part and having an attachment hole with a closed-end bottom to receive a bolt therein defined at a tip surface of the head part and a breaking groove provided at an outer side surface of the head part. The breaking groove is formed at an outer surface of a portion in which the attachment hole is defined. A torque equal to or greater than a fixed value exerted on a tip portion between the tip surface and the breaking groove of the head part causes the breaking groove to be broken, thereby causing the tip portion between the tip surface and the breaking groove of the head part to be removed.08-09-2012
20120328388Shearable fastening device with force transmission element - A shearable fastening device (12-27-2012
20130149065Torque-Limited and Removable Fastener for One-Time Use - A torque-limited fastener turnable in fastening and loosening directions for one-time use includes a fastener head with a base, a set of lugs extending from the base, and an optional set of ramps extending from the base. The lugs include abutment surfaces facing a fastening tool slot recess that receives a fastening tool. When the fastening tool is turned in the fastening direction it bears against the lug surfaces. The lugs shear off or plastically deform into recesses when the fastening tool applies a limiting fastening torque. The ramps have abutment surfaces facing a loosening tool slot recess that receives a loosening tool. The ramps cam the fastening tool over the ramp abutment surfaces if the fastening tool is in the fastening tool recess and is turned in the fastening direction after the lugs have sheared off or have plastically deformed in response to application of the limiting torque.06-13-2013
20150354616CASING ASSEMBLY - A bolt which extends into the first casing part, into the hole in the barrel nut, and into the second casing part, wherein the bolt engages with the barrel nut so as to join the first casing part to the second casing part; wherein the barrel nut includes a first portion and a second portion, wherein the first portion of the barrel nut is structurally weaker than the second portion of the barrel nut such that, if a predetermined load between the first casing part and the second casing part is exceeded, the first portion of the barrel nut becomes crushed whilst the second portion of the barrel nut remains engaged with the bolt. The casing assembly may be included in a gas turbine engine.12-10-2015
20160160902Torque Limiting Set Screw - A torque limiting fastener comprising a body. The body includes a threadform, an inner bore and a controlled break region. The body defines an elongated body extending from a first end to a second end, and the body includes an outer surface. The threadform extends at least partially between the first end and the second end along the outer surface. The inner bore extends from the second end at least partially toward the first end of the body. The controlled break region is positioned between the inner bore and the outer surface. The controlled break region includes an outer surface break point formed into the outer surface and an inner surface break point formed into the inner bore. The outer surface break point and the inner surface break point defining a shear plane therebetween.06-09-2016
411006000 Resilient connection 8
20110164940IMPROVED SELF-LOCKING NUT - The invention relates to a self-locking nut (07-07-2011
20150063939Self-Locking Screwing Attachment Device And Assembly Provided With Same - A nut for securing first and second pipe end-pieces together includes a nut lock having a stop member secured to the nut body, and a second element which is rotatable inside the nut body and having a locking feature adapted to lock onto a corresponding locking structure of the second end-piece. The stop member and the second element include corresponding face teeth which are urged to intermesh by an axial compression spring. At or near the tightened condition of the assembly, the second element is locked onto the second end-piece so that rotation of the nut is possible only if the torque applied exceeds a given threshold, for which the face teeth jump over each other while the spring is alternately stressed. A compact design is obtained with the lock positioned at the rear of the nut thread. The clamping face is axially between the nut thread and the lock.03-05-2015
20150330436Self-Locking Screwing Attachment Devices And Assemblies Provided With Same - A self-locking screwing attachment device. In one embodiment, the device includes a first element having an inner thread, the first element being screwed onto a threaded tip. In other embodiments, the first element has an outer thread and can either be made of a hollow body or have a closed end so as to constitute, for instance, a borescope.11-19-2015
20160084289Torque Limiting Fastener - A torque-limiting fastener assembly, comprising: a fastener body having an externally threaded shaft and a drivable head, said head being provided with elements adapted for frictional contact with a driver capable of delivering torque to said threaded shaft, wherein said elements comprise flexible flanges/toggles that deflect at a predetermined torque to prevent further frictional contact between said driver and said head elements that is sufficient to drive said fastener.03-24-2016
411007000 Ratchet 4
20090142155ANTI-LOOSENING UNIT - The present invention relates to an anti-loosening unit comprising at least one ringed plate. The ringed plate has slots, cuneal structures and protrusions. The cuneal structures match other corresponding cuneal structures of other corresponding elements. The slots serve to reduce the contact area of corresponding cuneal structures. With a small dragging force between the ringed plate and the other corresponding elements, the ringed plate slides easily to cause an axial displacement, thereby producing an axial stress. The axial stress will increase the friction between the protrusions and the element surface, so the anti-loosening unit is not easily rotated, and the anti-loosening effect is achieved. Furthermore, the slots of the ringed plate can reduce the deformation of the ringed plate, and the production quality is improved.06-04-2009
20110236153SCREW WHICH CAN BE SCREWED INTO A COMPONENT - The invention relates to a screw which can be screwed into a component and which will resist further screwing into an internal thread within said component once a maximum torque has been reached. For this purpose, a screw body having an external thread is combined with a screw drive element which projects into a bore within said screw body and, within said bore, is connected to the screw body via static friction. At least part of this combination is made of a plastic material, with the static friction having the effect of a slipping clutch when a maximum torque acts on the screw drive element. The screw drive element is connected to the screw body via a ratchet in such a way that when the screw body is unscrewed from the internal thread within said component, turning said screw drive element will cause the ratchet to engage, thereby entraining the screw body.09-29-2011
20120237312TORQUE-LIMITING NUT ASSEMBLY - A torque-limiting nut assembly, in a preferred form, includes an inner nut engaged with a shaft. A resilient torque member and a rigid torque member are positioned between the inner nut and an outer nut, with each being rotatably fixed to one of the nuts. Rotating the outer nut relative to the inner nut compresses the resilient torque member with the rigid torque member, moving the nuts along the shaft in a first axial direction until the resilient torque member is compressed out of engagement with the rigid torque member. Rotating the outer nut in the opposite direction engages the resilient and rigid torque members thereby urging the nuts in the opposite direction. The torque-limiting nut assembly provides a convenient device to apply the correct amount of application-specific torque.09-20-2012
20140119849RATCHET NUT ASSEMBLY - A ratchet nut assembly includes an inner member, an outer member, and a spring clip. The inner member includes an outwardly extending tooth. The outer member is positioned around a portion of the inner member and includes an inwardly extending pawl. The pawl is engageable with the tooth to rotate the inner member with the outer member in a first direction when a torque applied to the outer member is below a predetermined value and is operable to deflect outwardly to allow rotation of the outer member relative to the inner member in the first direction when the torque applied to the outer member is above the predetermined value. The pawl is engageable with the tooth to prevent rotation of the outer member relative to the inner member in a second direction. The spring clip is positioned around a portion of the outer member to limit deflection of the pawl.05-01-2014

Patent applications in all subclasses TORQUE RESPONSIVE NUT OR BOLT DRIVING CONNECTION

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