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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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6951052 |
Fastener insertion apparatus and method
A rivet is inserted into a workpiece by apparatus that includes an internal roller screw linear actuator in which rotational movement of an internally threaded cylinder is converted into linear...
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6857189 |
Method and apparatus for assembling a hydrodynamic bearing
A method and apparatus for assembling a hydrodynamic bearing in a motor is provided. The method comprises affixing a first bearing upon a shaft, applying an axial tension force to the shaft, and...
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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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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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6615471 |
Method of locating the blade holders in a fin folding machine
A fin folding machine has a base, a pair of vertical side support members extending from the base. A top support member is spaced from the base and is attached to the pair of vertical side support...
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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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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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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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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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5604968 |
Fastener system including a swage fastener and tool for installing same
A fastener system for multi-piece swage type fasteners, including a pin and a collar, and providing a stump type fastener constructed to be set as a pull type fastener with the fastener pin having...
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5321506 |
Automatic screw-on pipe couplings
The invention is a method and apparatus for continuously monitoring the application of a coupling to a pipe. The invention operates in several modes. In the position mode, the apparatus rotates the...
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5233742 |
Method and apparatus for controlling tubular connection make-up
Make-up of a pipe section and coupling to form a tubular joint having proper stand-off at proper make-up torque is automatically controlled. The coupling is first rotated onto the pipe section to a...
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5212862 |
Torque-angle window control for threaded fasteners
A method for tightening threaded fasteners to any desired proportion of the way through a torque-angle specification window defined by low and high angle limits and low and high torque limits. The...
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5125156 |
Process for setting bearings
The indirectly mounted tapered roller bearings which support a pinion shaft in a differential housing are set by turning a nut at the end of the shaft down to reduce the spacing between the cones...
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5065494 |
Method of securing fastener
A method for automatically tightening a tapped member such as a nut is disclosed. A socket of an open end air wrench mounted on a nut tightening robot is coupled with the tapped member. The robot...
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5040827 |
Method and apparatus for improved oilfield connections
An improved method of making up a pressure sealing threaded connection for oilfield country tubular goods is provided. A threaded connection is of the non-shouldered type, and includes a pin member...
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5014794 |
Power driven tool and drive system therefor
A portable screw fastener driving tool is driven electrically from a solid state inverter and intended to be coupled to any selected one in a set of screw fastener engaging members, each demanding...
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4995145 |
Reduction of relaxation induced tension scatter in fasteners
A method of reducing variations in the static torque of threaded fasteners, as measured after a relaxation period, uses an instrumented nutrunner to "break" the joint. Breaking the joint is done by...
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4987669 |
Method of tightening screw
In a method of tightening a screw member, the difference between the tightening axial force which is produced at the limit of elasticity when the friction coefficient between the screw member and a...
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4906980 |
Detector of false rotation of power screwdriver
The start of the final tightening of a screwdriver and rotation of the screwdriver after the start of the final tightening are detected. The detected rotation is compared with a standard value. The...
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4639996 |
Screw fastening method
An apparatus in which a threaded fastener is automatically attached to an article. The apparatus positions the threaded fastener in contact with the article and applies a torque thereon. A signal...
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4620450 |
Method of evaluating tightening condition of screw
When tightening a screw member with a nut runner, the turning angle of the screw member and the tightening torque of the same are detected. The ratio of increase in torque to increase in the...
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4592125 |
Method and apparatus for analysis of torque applied to a joint
The invention relates to a method and apparatus for continuously monitoring the making-up a joint between two mutually-engageable threaded members (12,13,14,22,23), the threaded members having...
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4413396 |
Microprocessor control yield point tightening system
A method for tightening a fastener to yield point wherein areas under a torque-angle curve--each of said areas including a constant abscissa--are successively measured. A decrease of area in a...
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4402052 |
Apparatus for making threaded joints incorporating a make-up speed controller
An apparatus is provided for controlling the speed of rotation of a joint member during the operation of making a threaded joint. At lower speeds of rotation, a counter means receives clock pulses...
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4377129 |
Apparatus for coating moving strips and a method for producing the apparatus
The invention relates to an apparatus for coating moving strips with several layers, in particular for coating photographic films and papers with photographic emulsions and layers, the apparatus...
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4365402 |
Method for counting turns when making threaded joints
A method and apparatus are disclosed for making threaded joints, such as pipe joints, within a range of predetermined applied torque and turns values. A pipe or a pipe and a coupling are threaded...
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4344216 |
Apparatus and method for tightening an assembly
Apparatus and method for tightening assemblies held together by threaded fasteners. The desired tightened condition is achieved by turning the threaded fastener through a precise tightening angle...
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4283830 |
Method and apparatus of monitoring the screwing home of a threaded element by a power tool
In order to determine whether the screwing home of a threaded element, such as a screw, by a power tool has been acceptably executed, the number of revolutions undergone by the threaded element...
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4208775 |
Method and apparatus for making threaded joints
A method and apparatus are provided for making threaded joints, such as pipe joints, within a range of predetermined applied torque and turns values. A pipe or a pipe and a coupling are threaded...
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4176436 |
Method and apparatus for counting turns when making threaded joints
A method and apparatus are disclosed for making threaded joints, such as pipe joints, within a range of predetermined applied torque and turns values. A pipe or a pipe and a coupling are threaded...
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4106176 |
Method and apparatus for fastener tensioning
A fastener tensioning method and apparatus for obtaining a desired degree of tension in a fastener. The embodiment of this invention described utilizes the slope of the change in torque per change...
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4104780 |
Method and system for tightening joint assembly
The preferred embodiment of the invention disclosed herein relates to a method of and a tightening system for tightening a joint assembly including a fastener system to a yield point of one of the...
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4104778 |
Method and apparatus for fastener tensioning
A fastener tensioning method and apparatus for obtaining a desired degree of tension in a fastener. The apparatus includes a means for applying rotation to a fastener, a means for measuring the...
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4095325 |
Method for tightening bolts
A method is provided for fastening bolts and like threaded fasteners wherein the bolt is rotated initially at a high rate of speed until it comes to a point in relation to the bearing surface of...
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3851386 |
METHOD OF TENSIONING BOLTS
The method of tensioning a nut engaging bolt comprising the steps of placing a first indexing mark in a visible location on the bolt, then, on a non-moving member which is juxtapositioned with...
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3602976 |
METHOD FOR CONTROLLING CLAMPING LOAD OF A THREADED FASTENER
A method of controlling or establishing, within close limits, the clamping load exerted on a workpiece or the bolt tension developed in a threaded fastener utilized for the securement of the...
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3606664 |
Title is not available
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