Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7997840 | Self locking tensioner The present invention is directed to a self locking tensioner that can be used to place a piston or stud in tension. The present invention is directed to a tensioner comprising slip wedges positioned between a piston and a body which houses the piston and the slip w... | 08/16/2011 |
| 7722302 | Self locking tensioner The present invention is directed to a self locking tensioner that can be used to place a piston or stud in tension. The present invention is directed to a tensioner comprising slip wedges positioned between a piston and a body which houses the piston and the slip w... | 05/25/2010 |
| 7389579 | Apparatus for providing a load on a bearing, the bearing having an inner race mounted to a shaft and the bearing retained by a nut Methods and apparatus for preloading a bearing are provided. These methods and apparatus include preload monitoring devices whereby the mechanic can accurately monitor and regulate the preload on a bearing or bearing assembly. Aspects of the invention may also be us... | 06/24/2008 |
| 7338240 | Double nut for the controlled fixing of a component by means of a belt connection A double nut for a controlled fixing of a component using a bolt connection, comprising a pulling sleeve having an internal thread adapted to be screwed onto a threaded end of a bolt, and a pressing sleeve adapted to be supported on the component. An internal thread... | 03/04/2008 |
| 7207760 | Washer and fastener provided with a washer A washer has a body having an axis and provided with a first face surface located at one axial side and adapted to cooperate with a nut, a second face surface located at an opposite axial side and adapted to cooperate with an object to be assembled or disassembled, ... | 04/24/2007 |
| 7204667 | High strength bolted structure and method of securing nut and torque-shear type high strength bolt and joining method using same A join structure comprises a box section column and spit T-section joined by a high strength bolt and a method secures a nut to an inside of the box section column. A Torque-Shear type high strength bolt is tightly tightened by a controlled tension and a joining met... | 04/17/2007 |
| 7195439 | Tightening member A hydraulic nut having a first part connected around the first end of a fixing member the first part having an annular recess which opens to receive a second part forming an annular member which fits within the annular recess, wherein a pressurized medium chamber is... | 03/27/2007 |
| 7140824 | Tensioning hydraulic nuts A hydraulic tensioning system for nuts on studbolts has a puller bar and a puller buddy, which are coupled to the studbolt, and a bridge around the nut. The puller bar is internally coupled to the studbolt (and may engage the nut before the tension is applied). The ... | 11/28/2006 |
| 7066699 | Tensioning apparatus and method A system (150) and method of tensioning a bolt (44) across a flange assembly (42). A tensioning apparatus (40) includes the bolt and an unthreaded nut (48) connected to the shank member by an interference fit. The interference fit ... | 06/27/2006 |
| 7063490 | Hydraulic nut, device and method for mounting or dismounting a hollow article A hydraulic nut having a piston which is movable in a fluid chamber of a nut body and which has a radial protrusion from the piston and a displacement bar mounted on the protrusion. The displacement bar overlies the nut body and extends past the nut body by an amoun... | 06/20/2006 |
| 7025176 | Bolt greaser unit A bolt greaser unit for lubricating the exposed top ends of anchor bolts that secure the base tower of wind generators to the foundation that is formed in the ground. The bolt greaser unit has a vertically oriented tubular housing having a base member secured to its... | 04/11/2006 |
| 7008156 | Load transfer apparatus A first load-receiving member having a cylinder and a screw hole through which a bolt is thread-engaged and a second load-receiving member having a piston and a fastening face that is made in contact with a member to be fastened are attached to a nut, and a number o... | 03/07/2006 |
| 6994503 | Quick-lock nut for a disc-like tool A quick lock nut (1) for positive friction locking securement of a disc-like tool (2) to an external thread (3) on a working spindle (4) driven about an axis of rotation (A), having an associated inner threaded part (5) and a manua... | 02/07/2006 |
| 6939073 | Releasable locking mechanisms In the aerospace field spacecraft components are held together by separation systems until a specific time when they must be separated or deployed. Customarily a threaded joining bolt engages one of the components to be joined, and a threaded nut is placed on that b... | 09/06/2005 |
| 6840726 | Tensioning apparatus and method A tensioning apparatus (40) for applying a closing force across a flange assembly (42). The tensioning apparatus includes a shank member (44) and an annular member (48) connected to the shank member by an interference fit. The interferenc... | 01/11/2005 |
| 6715975 | Tension control arrangement for a bolt A tension control arrangement including a plurality of cams disposed about an opening that accommodates a bolt to which a nut is intended to be secured. Each of the cams has a contoured outer surface, and each of the cams is rotatably supported such that the contour... | 04/06/2004 |
| 6685406 | Perforated nut tensioning system A stud tensioning device includes a nut having internal threads and external threads. The internal threads engage corresponding threads on the stud. At least two axial bores are defined by the nut, and posts are disposed in the bores. Each post at a first... | 02/03/2004 |
| 6506007 | Fastening bolt A fastening bolt fastens flanges between a bolt head and a nut attached on the threaded portion of the shaft via spherical washers. The fastening bolt has a cavity formed within the shaft. By application of pressure in the cavity with a hydraulic fluid su... | 01/14/2003 |
| 6450064 | Resettable separation mechanism with anti-friction bearings A self-aligning release assembly for a separation mechanism is provided. The separation mechanism has a protective housing for selectively releasably securing a fastener. The protective housing is mountable to a structure. The release assembly comprises a... | 09/17/2002 |
| 6381827 | Method for maintaining a clamping force between bolted parts in high temperature A high temperature bolting system for clamping steam turbine housings and similar high temperature parts together while operating at a temperature of 800° F. to 1200° F. An elongated fastener shank and housing material have similar coefficient of therma... | 05/07/2002 |
| 6263764 | Jackbolts for multi jackbolt tensioners Jackbolts for multi jackbolt tensioner embody a thread construction which taper from a maximum diameter adjacent to torque receiving end of the jackbolt when threadedly engaged with a threaded opening in the outer peripheral part of a jackbolt body. The t... | 07/24/2001 |
| 6254323 | Bolt for connecting two parts with one another, and fastening device provided with the bolt A bolt for connecting two parts with one another has a bolt member having an axis, a threaded portion provided with a thread, and another portion having a polygonal circumference, a friction washer non-rotatably connected to the polygonal circumference of... | 07/03/2001 |
| 6254322 | Bolt with a bolt member, a washer and a sleeve for applying forces to the bolt member and the sleeve A bolt for connection two parts with one another has a bolt member having an axis, a threaded portion provided with a thread, and another portion having a polygonal circumference, a friction member connected to the polygonal circumference of the other por... | 07/03/2001 |
| 6199453 | High temperature bolting system A high temperature bolting system for clamping steam turbine housings and similar high temperature parts together while operating at a temperature of 800° F. to 1200° F. An elongated fastener shank and housing material have similar coefficient of therma... | 03/13/2001 |
| 6113157 | Adjustable ball joint connector An apparatus for joining two flowlines, one having an external flanged end and the other an enlarged flaring portion at one end. A ball with an axial flow passage is seated in receptacle cavities formed in said ends and in fluid-tight sealing engagement t... | 09/05/2000 |
| 6077008 | Safety device for preloaded bolts A safety device used in preloading of bolts for providing the bolts with an internal stress in a mounted condition, wherein a first end of the bolt is secured to a first element and extends through a second element, which clamps to the first element, and ... | 06/20/2000 |
| 5603595 | Flywheel nut separable connector and method A method and apparatus for separably connecting a first surface to a second surface. The apparatus includes a connecting member provided with a threaded end. A rotatable body threadably engagable with the threaded end is rotatably supported against the fi... | 02/18/1997 |
| 4968201 | Adaptor for screwing or unscrewing threaded connection elements The adaptor comprises a nut (2) screwed onto the end of the connection element (1) and interacting with a two-way connector (4) adapted to ensure the connection between a screwing or unscrewing member and the connection element (1), an arrangement between... | 11/06/1990 |
