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7350286 |
Rotational and axial power transmitting apparatus
Threaded member assembling can be performed using a rotational/axial-movement-transmitting unit including an upper frame; a motor held by the upper frame; a female threaded member secured to the...
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7146715 |
Spin pressure power tool
Apparatus for installing a rivet nut or the like having an intentionally threaded shaft wherein the apparatus includes a hydraulically geared power tool having an inner hydraulic fluid containing a...
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7062831 |
Method for monitoring proper fastening of an article of assembly at more than one location
A more reliable and fool-proof method and apparatus for assembling an article of assembly (e.g. with predetermined screw torque requirements) in which the article of assembly has multiple fastening...
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6796031 |
Process for setting bearings and verifying force preload
A pair of tapered roller bearings, which are located between two machine components, such as a pinion shaft and its carrier, to enable the one component to rotate relative to the other one, is set...
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6782594 |
Method and apparatus for auditing a tension load in the threaded fastener
The present invention is directed towards a method and an apparatus for accurately estimating the tension or clamp force in a bolted joint. An installed fastener is rotated and the torque necessary...
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6763573 |
Assembly system for monitoring proper fastening of an article of assembly at more than one location
A more reliable and fool-proof method and apparatus for assembling an article of assembly (e.g. with predetermined screw torque requirements) in which the article of assembly has multiple fastening...
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6763564 |
Automated method and apparatus for driving fasteners into an electric fan assembly
An apparatus and method for assembling a fan grill to a shroud of a fan housing. The apparatus includes a support structure having a moveable carriage disposed in a horizontal plane. The moveable...
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6684506 |
Bearing assembly adjustable spacer and gage part adjustment method
One or more force application members (e.g., a force transmission member and/or a hydraulic force application member) may be employed to provide a desired adjustment (e.g., a preload and/or a...
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6668441 |
Screw mounting installation method
A method is described for installing a stud to extend above a surface of a composite portion of a tank or other structure subject to the pressure of cryogenic fluid, so that another structure can...
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6651303 |
Equipment and method for replacing a band-like doctor blade
The invention relates to band-like doctor blade assembly, a doctor blade and a method in the use of the doctor blade. The doctor blade assembly includes continuous and substantially infinite doctor...
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6618923 |
Method for tightening screw joints
A method for tightening screw connections in series assembly. The method includes continuously monitoring a torque and a rotational angle of the screw. Initially, the screw is tightened by turning...
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6588107 |
Rotary die cutter apparatus and method
Apparatus and method precisely preload bearings onto shafts. A swivel plate swivels up to 360° and locks a rotary shaft axially with a motor shaft. A shim and bearing adjacent the shim preload...
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6588106 |
Method and apparatus for installing roller bearings
The invention concerns a method for the installation of pretensioned roller bearings ( 2 ), in particular angular ball bearings, for example, in wheel carriers of automobiles, airplanes, and the...
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6557245 |
Apparatus for mounting a bearing onto a shaft
An apparatus for mounting a bearing onto a shaft is disclosed. The apparatus includes a base plate and a support mounted to and extending upward from the base plate. The support is capable of...
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6539603 |
Method for self-programming a power nutrunner control system during initial tightening processes
A method for self-programming a computerized power nutrunner control system for tightening a number of similar screw joints to a desired final torque level (M F ) is provided. The method includes...
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6442812 |
Method of manufacturing a piezoelectric torque sensor
A method of manufacturing a piezoelectric torque transducer is provided, comprising the steps of (a) forming a prepared area on a surface of a torsion member adapted to be strained by an applied...
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6438814 |
Method of forming a connection between a tube and a fitting
A method of forming a connection between a tube and a fitting, in which the fitting including a body with an externally male threaded tube receiving part to receive a tube, and a female threaded...
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6427307 |
Low-hysteresis coupling method for angular-position and torque sensor
An angular-position and torque sensor assembly includes a low-hysteresis coupling for an assembly including a plurality of shafts. The coupling comprises an inner member, an outer member, and a...
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6421902 |
Method and device for producing and checking screwed connections
A method of producing and checking a screw connection of parts by a screw under the effect of a predetermined initial tension force. Moreover, a connecting device controls the sequence of process...
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6385837 |
Method and apparatus for fixedly connecting threaded tubes, and recording medium storing control program for practicing or controlling those method and apparatus
Method of fixedly connecting together externally and internally threaded tubes by tight engagement of externally and internally threaded portions of the tubes, wherein a wrenching operation is...
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6364011 |
System and method for handling tubular members
An apparatus for handling a plurality of tubular members. The apparatus comprises A tong member for coupling a first tubular with a second tubular. A first axial roller is positioned on the first...
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6343420 |
Method of mounting a bearing onto a shaft
The method includes sliding a first shim onto the support shaft until it abuts a shoulder. The first shim has a predetermined thickness. A bearing is then slid onto the tapered surface and a lock...
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6233807 |
Process for automatically screw-connecting two components
A process is provided for automatically screw-connecting two components using the torque-controlled tightening method, and to a stud and a union nut provided for carrying out the process. Also...
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6212763 |
Torque-turn system for a three-element sucker rod joint
A sucker rod tool system for oil wells monitors both torque and angular displacement of a three-element sucker rod connection. The tool system engages two sucker rods that are at least partially...
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6167606 |
Method for tightening a screw connection by means of an impact screwdriver having a variable speed electric drive motor
The screwdriving device (9) according to the invention has a control device (22) which uses a sensor system (18) to determine a characteristic variable (K) which characterizes a screwdriving moment...
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6112397 |
Method of applying torque to a CPU fan unit
Disclosed is a method of applying torque to a CPU fan unit. One embodiment of the method comprises providing a tool having two mounting pins adjustably positioned along a common axis. The position...
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6088910 |
Apparatus and method for preloading antifriction bearings
An apparatus and method for preloading roller bearings which rotatably support a pinion shaft in a differential gear assembly includes a drive mechanism which selectively engages and rotatably...
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6047455 |
Method for simultaneous tightening of two or more screw joints
A method for simultaneous tightening of two or more screw joints to a desired pretension condition by means of a nut running tool having two or more output spindles each having an adjustable output...
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6021555 |
Method of inserting a threaded fastener into a fastening element
A method of inserting a threaded fastener having a threaded portion into a fastening element having a threaded recess. The method includes the steps of positioning the threaded portion of the...
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6003229 |
Apparatus and method of precisely preloading a bearing onto a shaft
An apparatus and method of precisely preloading a bearing onto a shaft is disclosed. The apparatus includes a base plate and a support mounted to and extending upward from the base plate. The...
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5948997 |
Swaged connection testing apparatus
An apparatus for measuring the reliability of a swage mount interconnecting components of a workpiece using a computer-controlled apparatus. The apparatus includes a mechanism that connects the...
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5898986 |
Method and apparatus for screwing a nut onto a stud
To align an aperture (16) in a nut (12) with a hole (18) in a threaded stud (14), the nut (12) is rotated on the stud (14) to move the aperture (16) over the hole (18). Light is projected into the...
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5727299 |
Wheel alignment machine and method
An improved method and apparatus for setting the toe-in on motor vehicles during assembly thereof is disclosed which includes a sensor assembly operative to accurately sense the position of a nut...
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5664310 |
Combination power and backup tong support and method
A support 10 is provided for supporting both a power tong PT and a backup tong BT during makeup of a threaded connection TC between a lower oilfield tubular LT and an upper oilfield tubular UT. The...
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5661888 |
Apparatus and method for improved oilfield connections
A device for positioning two threaded pipes being threaded together within a target range of relative axial positions, which device generally includes a sensor base, and a calibrating device for...
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5591919 |
Method and apparatus for monitoring and controlling tightening of prevailing torque fasteners
A fastener tensioning method wherein pre-tensioning fastener tightening history acquired during the tightening of the fastener prior to the point of proportional tensioning of the fastener is...
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5549169 |
Screw tightening apparatus
A screw tightening apparatus including an electric screwdriver having a bit shaft adapted to hold a male screw to be threaded to a female hole in a workpiece and a drive mechanism arranged to move...
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5502883 |
Method of tightening threaded member
A reference range of tightening torques is predetermined relative to the rotation angle of a threaded member as normally tightened. In tightening up a nut on an externally threaded member, the...
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5469924 |
Screw tightening apparatus
A screw tightening apparaus of type including an electric screwdriver the bit shaft of which is arranged to carry a male screw engaged therewith to be threaded into a mounting hole of a workpiece...
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5457866 |
Bolt-tightening method using an impact wrench
The present invention provides an impact wrench and a bolt-tightening method such that a spring force is applied, through the circumference of a spindle coupled with the output shaft of an electric...
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5430923 |
Method for removing a cap from a container with a cap engaging unit
The automated container cap remover and method for cap removal includes a drive for causing relative rotation to occur between a container cap and a cap engaging unit. The drive brings the cap...
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5404643 |
Method of monitoring threaded fastener tightening operations
A crankshaft bearing inspection system for confirming the presence of bearing inserts and the proper amount of bearing crush during assembly of reciprocating machines accomplished by measuring a...
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5396686 |
Method for automatically tightening and untightening a bolt
A method and apparatus for automatically tightening and untightening bolts which are assembling and fastening devices for a form used in centrifugal compacting and molding concrete products, in...
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5291645 |
Method and apparatus for feeding and tightening threaded parts
The present invention is directed to a method and apparatus for feeding and tightening threaded parts, such as bolts or nuts. The apparatus incorporates a holding member longitudinally movable...
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5282707 |
Fastening system for locking nut with torque indicating marks
The present invention relates to a fastening system comprising a nut with a locking threadform and a nut driving system which visually marks the locking nut when the proper torque is reached. The...
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5280967 |
Device for indicating the proper installation of fittings
The mechanical stress indicator includes two stress indicating rings disposed between engagable fasteners. The stress indicating rings can assume three distinct cooperative positions, corresponding...
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5256014 |
Nut threaded fastener for applying a predetermined preload
Six lobes of a nut have axial surfaces falling on six tangent cylinders of equal radius and having axes lying on a right cylinder concentric with the axis of the nut. The surface of a second...
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5216795 |
Method for tightening threaded joints
A method for tightening threaded joints by applying torque on the joint by means of a power tool until a predetermined pretension level in the joint is reached, whereupon a controller means...
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5215270 |
Method for tightening a fastener
An improved and novel method for controlling the speed of a mechanical apparatus in relation to a reference parameter. The reference parameter can be torque, displacement or similarly measurable...
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5212885 |
High gas sealibility makeup for API buttress connections
Threaded pipe sections are connected to form a casing joint having proper sealing positioning at proper makeup torque. This improved connection includes a first pipe section having a standard API...
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