Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 501 - 550 out of 3,567

Document Document Title
WO/1994/001689A1
A locking fastener in which coacting ramp surfaces (120a, 130a) are provided on a nut and washer assembly to generate wedging forces in response to backing off movement of the nut (120) which urge the nut (120) into tighter engagement wi...  
WO/1993/025351A1
A securing arrangement (29) for bolting together turbine casings flanges (111 and 112) by means of junction bolts (13) passing through aligned aperture pairs (191), consists of a hydraulic stressing device (50), for assembly on the bolt ...  
WO/1993/022568A1
For elongating and relaxing a bolt, a stud and the like (1) having an axis and arranged in an object (2), the stud (1) is connected with a first part (4) which is movable only in an axial direction so as to pull the stud (1) in the axial...  
WO/1993/021449A1
A fastener includes load sensing means (10) having parts (14; 15) relatively movable in response to change in length of the fastener body (2) under applied loads which are registered on a scale (19) by the relative movement. The load sen...  
WO/1993/016293A1
A load-indicating fastener, such as a bolt (10), has a bore (18) which extends from an end face (16) of the bolt and which can receive a gauge pin (30). The assembly of the bolt (10) and gauge pin (30) is pre-set by applying a predetermi...  
WO/1993/006375A1
The tamper proof anchor bolt assembly (10) includes a frangible nut assembly (22) and a tamper resistant skirt (24) attached to one end of an expandable anchor bolt device (16, 26). An expandable anchoring means (38, 40) attached to the ...  
WO/1993/005306A1
An annular piston and cylinder device comprises an annular cylinder and a piston therefor, the piston having sidewall portions which extend into the cylinder towards the base thereof in the form of tapering annular webs which together de...  
WO/1992/014938A1
A bolt (10) for attaching a first member (12) to a second (14) with a desired compressive force. The bolt has a cylindrical body (16) with a threaded section (22) on a first end (20) and a head (18) on a second end (24). The cylindrical ...  
WO/1992/013203A1
A hollow bolt (10) contains first and second electrical contact elements (13, 16) which are moved apart when the bolt is subjected to a predetermined tensile load. A carrier (14) for a first of the contact elements contains an inductor (...  
WO/1992/008903A1
A failure indicating device wherein a fluid is encased within a bore in a fastener. In another embodiment of the invention, the fluid (14) is encased within a thin walled capsule (12) which in turn is encapsulated within a bore in the fa...  
WO/1992/004514A1
To prevent damage in making a sleeve joint - primarily for reinforcing rods - and improve the static and dynamic bearing strength of the joint, the sleeve (1) has a gradually rising profile in the end regions (3) for the jointing of meta...  
WO/1992/003665A1
A load indicating member (25) and load indicating fastener (10) are disclosed and claimed. An ultrasonic transducer (19), grown on one surface (15) of a load bearing member, such as a fastener, is used to determine the length, stress or ...  
WO/1992/003262A1
A torque-limiting driving socket for a nut or bolt comprises a socket portion (4) which receives the nut or bolt head and a hexagonal driving portion (6) for engagement with a spanner or wrench. The driving portion (6) is connected to th...  
WO/1992/003666A1
A fastening device has a pin-shaped fastener (1) having an axis, and a unit for tightening and loosening the fastener (1). The tightening and loosening unit includes one element (2) provided with first connecting means for connecting the...  
WO/1991/019909A1
The present invention relates to a fastening device, primarily for affixing a preferably expansive thin-walled element (3) to a preferably likewise thin-walled component (4), comprising at least one screw (1) with a shank (10) and a head...  
WO/1991/018213A1
A pre-load indicating washer (40) in which a plurality of protuberances (44), struck and partially sheared from the annular body (42) of the washer (40), are pushed under load back into a corresponding plurality of indentations (48) in t...  
WO/1991/011632A1
A self-drilling screw (3) for securing, for example, wooden parts (2) to sheet metal, in particular wooden edge planks to roof framework metal plates, has a shank (4) with a drilling point (5) at one end and a driving section (7) at the ...  
WO/1991/011633A1
A composite threaded collar (10) is fabricated from a panel (30) consisting of multiple layers (60, 62, 64, 66) of fiber reinforced tape, bonded together to form a rigid composite structure. The tape comprises a plurality of longitudinal...  
WO/1991/008398A1
A load indicating fastener such as a bolt (10) or stud, has a shank (12) which is subject to tensile loading in use. The shank (12) has an axially extending bore (22) which receives a first gauge pin (30) anchored at its inner end (32) t...  
WO/1991/003609A1
A fastener/plate assembly (10) for fastening material to a roof deck (18) employs a threaded fastener (14) having a shank (46) with two thread sections (44, 48). The distal end portion (42) of the shank (46) has a thread (48) which is lo...  
WO/1991/001484A1
For indicating when the tension in a bolt reaches a predetermined value, there is provided an electrical contact (24) which is held in a position adjacent to an axially facing surface (20) of the bolt and in a fixed position relative to ...  
WO/1990/015259A1
The invention is a flush head fastener (14) for joining two or more structural elements (10, 12) together. The structural elements have a fastener hole (18) therein with one of the structural elements (10) being countersunk to accommodat...  
WO/1990/013753A1
A fastening apparatus is provided wherein the length of a mating threaded connection between two members (60, 64) is limited as a function of an effective differential pitch to the uniform pitch of the threads (61, 63) on both members (6...  
WO/1990/010798A1
In an indicator for visually displaying extremely small displacements between two points within a structure, a change of color visible through an indicator window (26) occurs during a preselected portion of a predetermined displacement w...  
WO/1989/005713A1
A tool for transmitting torque from a wrench to a nut has a socket component (10) and a sensing element (17) which projects along the interior of the socket component into engagement with the head of a pin (16) mounted in an end portion ...  
WO/1989/003026A1
A clamp (50) for use in testing machines to prestress a joint between a driving shaft (30) and a driven shaft (20), both of which carry portions (22, 32) which are externally threaded with each shaft having a flat surface (36, 38) abutti...  
WO/1989/002807A1
A hydraulic nut (20) for tensioning a bolt (232) is disclosed having a stepped annular piston (22) slidable within a housing (21) for reducing the complexity of manufacture. The locking collar (27) is threaded to the housing (21) on a bu...  
WO/1988/008088A1
Attainment of a predetermined stress in a bolt (10) which is being tightened is indicated by interference with the freedom of a pin (15) to rotate relative to the bolt. The pin extends along a bore (14) from an end of the bolt and the bo...  
WO/1988/002074A1
An expansion bolt especially for use in flanged couplings in drive shafting comprises a bolt having a tapered shank (7) and a cylindrical sleeve (10) having a complementary internal taper, the sleeve (10) being provided with a pair of di...  
WO/1987/007089A1
A screw-coupled connector comprises two coupling parts which are capable of being secured together by the rotation of an internally screw-threaded nut (3) carried on one of the parts, in which the said part includes a sleeve (6) which is...  
WO/1987/005976A1
An installation system for securing workpieces (12, 14) of composite type materials and including a fastener (10) adapted to be located in aligned bores (34, 36) in such workpieces with a preselected interference fit, with the fastener c...  
WO/1987/005977A1
Six lobes (22) of a nut have axial surfaces falling on six tangent cylinders (28) of equal radius and having axes lying on a right cylinder concentric (32) with the axis of the nut. The surface of a second concentric right cylinder havin...  
WO/1984/003741A1
The dowel (14) is provided with a slotted expansion shell (20) which may be drawn by at least one expansion body (26) engaged into the inward end of the hole, preferably by two expansion bodies (26, 28) engaged into the inward end of the...  
WO/1984/002753A1
A security nut comprises a hexagonal sided head (2) connected to a body portion (1) by a frangible neck (3) of reduced diameter. On tightening up past a given torque head (2) breaks off or may be snapped off to prevent the body portion (...  
WO/1984/002577A1
The method for measuring strains in a part uses the reflection of an acoustic wave, while measuring a transit time of said wave by means of an apparatus which measures the fade-in time of an echo coming from an interface. The method comp...  
WO/1981/002917A1
A system and method for fixedly securing a roller side bearing to the top surface portion of a rail car truck assembly. Elongated threaded fasteners (60) pass through registered openings (50, 80) in a bearing cage bottom wall (42) and tr...  
JP2020035601A
[Subject] Also after cutting a head of a Refusal bolt which is not carried out, re-bolting, a connector for wire splicing which can be removed, etc. are provided. [Means for Solution] Refusal bolt 20 which is not carried out by being con...  
JP6649559B2  
JP2020020646A
[Subject] In a slack detection method, a fatigue destructive prevention method, and a machinery structure of a bolt, slack of a bolt is detected simply. [Means for Solution] Bolt conclusion object 1 in which a slack detection method of a...  
JP2020020370A
[Subject] It aims at making errors, such as axial tension detection, small by making a tensile device screw in a different part from an axial part of a bolt, and pulling a bolt. [Means for Solution] It is tensile device 1 for pulling up ...  
JP2020020410A
[Subject] Slack of a conclusion object is stabilized and a detectable conclusion implement is provided. [Means for Solution] Washer 20 with which it is equipped between conclusion object 10 which rotates to the body to be concluded and c...  
JP6633137B2  
JP6629166B2  
JP2020002971A
[Subject] It is made to manage fixing intensity, without complicating structure of a screw member. [Means for Solution] Main part male screw part 13 which is provided in the direction tip side of an axis of main part shaft member 15 whic...  
JP2019536965A
A pressurization system for bolt tensioning, In order to raise pressure in a fluid exit and; fluid exit which are connected to an entrance and; bolt tensioning device which receive compressed gas, it is a pump which sends fluid, It conne...  
JP2019536964A
It is a torque assembly and is a torque assembly, In order to transmit torque between an outside component, an inner side component inserted in in an outside component, and an inner side component and an outside component, Torque which i...  
JP2019535985A
[Means for Solution] Fastener 10 is arranged in sleeve 14 which has long and slender portion 15, a head which has support face 19, and female screw portion 21, and; sleeve 14, and is provided with core bolt 12 and; which have a shank par...  
JP2019534993A
The present invention is a screw connection mechanism (1), and a screw connection mechanism (1) is, The element which has a screw thread which extends along a longitudinal axis (L), especially a screw element (2), It has a monitoring ins...  
JP6616150B2  
JP2019203598A
To inspect an extra length of each bolt at low costs with high workability even when the number of bolts to be inspected is large.A bolt fastening inspection tool 1 includes a cylindrical bolt insertion portion 2, and a tongue-shaped por...  

Matches 501 - 550 out of 3,567