According to a first aspect of the invention we provide a three-piece self-reacting fastener, or lock nut, for connecting a joint having a threaded connector including: a first nut member engageable with the threaded connector and axially displaceable; a second nut member engageable with the first nut member and rotatable about an axis; a third nut member non-rotatably but axially displaceably connected with the first nut member, which during rotation about the axis, applies a load to the threaded connector and to tighten the lock nut; and a locking means which substantially non-rotatably connects the second nut member and the threaded connector with one another after tightening the lock nut.
F16B 31/04 - Screwed connections specially modified in view of tensile loadBreak-bolts for maintaining constant tensile load
F16B 39/10 - Locking of screws, bolts, or nuts in which the locking takes place after screwing down by a plate or ring immovable with regard to the bolt or object
F16B 39/18 - Locking of screws, bolts, or nuts in which the locking takes place after screwing down by means of locknuts in which the screw-thread of the locknut differs from that of the nut in which the locknut grips with screw-thread in the nuts as well as on the bolt
F16B 39/12 - Locking of screws, bolts, or nuts in which the locking takes place after screwing down by means of locknuts
F16B 39/16 - Locking of screws, bolts, or nuts in which the locking takes place after screwing down by means of locknuts in which the screw-thread of the locknut differs from that of the nut
According to a first aspect of the invention we provide an apparatus ( 1 ) for use with a threaded fastener including: - an inner sleeve member ( 100 ) having an internal surface threadedly engagable with the fastener and a tapered external surface; and an outer sleeve member ( 200 ) having an inversely tapered internal surface rotatably engagable with the tapered external surface of the inner sleeve member. Advantageously, the invention allows for an increased load bearing surface area between the inner sleeve member ( 100 ), which is clamped, and the outer sleeve members ( 200 ) without increasing the overall diameter of the apparatus ( 1 ) 6; a three dimensional load bearing surface area rather than a conventional two dimensional plane; more efficiently and evenly distributed load stress distribution over the load bearing surface area; higher torsion strength; and apparatus with lower mass, dimensions and volume.
F16B 31/02 - Screwed connections specially modified in view of tensile loadBreak-bolts for indicating or limiting tensile load
F16B 39/36 - Locking of screws, bolts, or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt with conical locking parts, which may be split, including use of separate rings co-operating therewith
According to a first aspect of the invention we provide an apparatus ( 1 ) for use with a threaded fastener including: - an inner sleeve member ( 100 ) having an internal surface threadedly engagable with the fastener and a tapered external surface; and an outer sleeve member ( 200 ) having an inversely tapered internal surface rotatably engagable with the tapered external surface of the inner sleeve member. Advantageously, the invention allows for an increased load bearing surface area between the inner sleeve member ( 100 ), which is clamped, and the outer sleeve members ( 200 ) without increasing the overall diameter of the apparatus ( 1 ) 6; a three dimensional load bearing surface area rather than a conventional two dimensional plane; more efficiently and evenly distributed load stress distribution over the load bearing surface area; higher torsion strength; and apparatus with lower mass, dimensions and volume.
F16B 31/02 - Screwed connections specially modified in view of tensile loadBreak-bolts for indicating or limiting tensile load
F16B 39/36 - Locking of screws, bolts, or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt with conical locking parts, which may be split, including use of separate rings co-operating therewith
According to a first aspect of the invention we provide an apparatus for use with a threaded fastener including:- an inner sleeve member having an internal surface threadedly engagable with the fastener and a tapered external surface; and an outer sleeve member having an inversely tapered internal surface rotatably engagable with the tapered external surface of the inner sleeve member. Advantageously, the invention allows for an increased load bearing surface area between the inner sleeve member, which is clamped, and the outer sleeve members without increasing the overall diameter of the apparatus; a three dimensional load bearing surface area rather than a conventional two dimensional plane; more efficiently and evenly distributed load stress distribution over the load bearing surface area; higher torsion strength; and apparatus with lower mass, dimensions and volume.
F16B 31/02 - Screwed connections specially modified in view of tensile loadBreak-bolts for indicating or limiting tensile load
F16B 39/36 - Locking of screws, bolts, or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt with conical locking parts, which may be split, including use of separate rings co-operating therewith
According to a first aspect of the invention we provide an apparatus for torsionally coupling a threaded fastener and a torque output device including: - a first coupling member (100) : rotatably and threadedly engagable with the threaded fastener; rotatably and taperedly engagable with a second coupling member (150); non - rotatably engagable with an action portion of the torque output device; the second coupling member (150) non - rotatably engagable with a reaction portion of the torque output device; and wherein the first coupling member (100), when rotated by the action portion of the torque output device, applies a load to the threaded fastener.
A radially expanding bolt assembly has a hollow element insertable into a hole of an object and having an inner surface with at least one inner surface portion which is tapered, an expanding element insertable in the hollow element and having an outer surface with at least one outer surface portion which is tapered and cooperates with the inner tapered surface portion of the hollow element, additional elements for displacing the expanding element in opposite axial directions for tightening and loosening the bolt assembly, and a washer positionable between the object and one of the additional elements at one of the axial ends, so that the one additional element displaces the expanding element in one axial direction and due to cooperation of the tapered surface portions expands the hollow element to clamp it in the hole of the object, while the other additional element displaces the expanding element in an opposite axial direction and the tapered surface portions disengage from one another so that the hollow element contracts and the radially expanding bolt assembly can be removed from the hole of the object.
A radially expanding bolt assembly has a hollow element (1) insertable into a hole of an object and having an inner surface with at least one inner surface portion which is tapered (2), an expanding element insertable in the hollow element and having an outer surface with at least one outer surface portion which is tapered and cooperates with the inner tapered surface portion of the hollow element, additional elements for displacing the expanding element in opposite axial directions for tightening and loosening the bolt assembly, and a washer positionable between the object and one of the additional elements at one of the axial ends, so that the one additional element displaces the expanding element in one axial direction and due to cooperation of the tapered surface portions expands the hollow element to clamp it in the hole of the object, while the other additional element displaces the expanding element in an opposite axial direction and the tapered surface portions disengage from one another so that the hollow element contracts and the radially expanding bolt assembly can be removed from the hole of the object.
F16B 13/06 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
A radially expanding bolt assembly has a hollow element insertable into a hole of an object and having an inner surface with at least one inner surface portion which is tapered, an expanding element insertable in the hollow element and having an outer surface with at least one outer surface portion which is tapered and cooperates with the inner tapered surface portion of the hollow element, additional elements for displacing the expanding element in opposite axial directions for tightening and loosening the bolt assembly, and a washer positionable between the object and one of the additional elements at one of the axial ends, so that the one additional element displaces the expanding element in one axial direction and due to cooperation of the tapered surface portions expands the hollow element to clamp it in the hole of the object, while the other additional element displaces the expanding element in an opposite axial direction and the tapered surface portions disengage from one another so that the hollow element contracts and the radially expanding bolt assembly can be removed from the hole of the object.
F16B 13/06 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
A radially expanding bolt assembly has a hollow element (1) insertable into a hole of an object and having an inner surface with at least one inner surface portion which is tapered (2), an expanding element insertable in the hollow element and having an outer surface with at least one outer surface portion which is tapered and cooperates with the inner tapered surface portion of the hollow eiement, additional elements for displacing the expanding element in opposite axial directions for tightening and loosening the bolt assembly, and a washer positionable between the object and one of the additional elements at one of the axial ends, so that the one additional element displaces the expanding element in one axial direction and due to cooperation of the tapered surface portions expands the hollow element to clamp it in the hole of the object, while the other additional element displaces the expanding element in an opposite axial direction and the tapered surface portions disengage from one another so that the hollow element contracts and the radially expanding bolt assembly can be removed from the hole of the object.
F16B 13/06 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
Goods & Services
(1) Threaded fasteners, bolts, washers and clamping nuts.
(2) Industrial metal threaded fasteners; bolts and clamping nuts all made of metal.
(3) Hydraulic and fluid operated wrenches; electric motors for machines; electric generators; power operated bolting tools for tightening and loosening of industrial fasteners; machine pumps.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
Goods & Services
Bolting products for regular and heavy industry; bolting systems and solutions for regular and heavy industry substantially comprising threaded fasteners, bolts, washers, and clamping nuts. Hydraulic, pneumatic, electric and fluid operated bolting torque and tension tools for tightening and loosening fasteners, bolts, washers and nuts; hydraulic, pneumatic, electric and fluid operated pumps; and associated operational, structural and replacement parts for all of the above.
(1) Power operated tools, namely, bolting tools for the tightening and loosening of industrial fasteners, power operated drills and saws, hydraulic pumps.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
Goods & Services
Industrial metal threaded fasteners; bolts and clamping nuts all made of metal Hydraulic and fluid operated wrenches; electric motors for machines; electric generators; power operated bolting tools for tightening and loosening of industrial fasteners; machine pumps
