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Class 411/238 - At least one of the formations comprises a surface eccentric to the longitudinal axis of the nuts


Subclass of Class 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
Definition: Device wherein one of the structural features is a surface
No. of patents: 13
Last issue date: 11/27/2007


NumberTitleIssue Date
7300237Self-locking bolted fastener
A bolted fastener for joining components, such as a bracket fastened to a crosspiece, includes a bolt, a nut and an eccentric. A square neck of a bolt fits into an oblong hole in a component and prevents the bolt from turning. The diameter of the eccentric that serv...
11/27/2007
7284939Fastener with tightening structure
A tightening structure for locking, comprises a nut, a bolt, and a washer with a hole through which an axis of the bolt passes. To enable the structure to lock more firmly, a recessed part symmetrical with respect to an axis, and having a generally trapezoidal shape...
10/23/2007
7216843Pilot-controlled electromagnetic valve system
A pilot-controlled electromagnetic valve system has an electromagnetic valve block mounted on the top of a manifold block. A bearing surface is formed on the top of the electromagnetic valve block at a position adjacent to a screw accommodating recess formed on a jo...
05/15/2007
7157828Fuel pump for high torque in compact structure
In a fuel pump, four permanent magnets are installed in a housing. An armature is installed inside the permanent magnets rotatably. Six magnetic pole coil portions of the armature are installed in a central core. Each magnetic pole coil portion has a coil core, a bo...
01/02/2007
7025552Assembly for automatically compensating variations in the spacing between two structural members
An assembly for automatically compensating variations of the spacing between first and second structural members due to manufacturing and/or mounting tolerances. The assembly comprises a mounting bolt, a base element, and an adjustment sleeve. The adjustment sleeve ...
04/11/2006
6786690Locking fastener
In a fastener comprising a bolt (3), a nut (2), and a washer (1), a bolt through-hole (5) which is slightly larger than a nominal diameter of the bolt (3) is formed in a base portion (4) of the washer (1), a conical b...
09/07/2004
6609867Anti-loosening nut assembly
An anti-loosening nut assembly is composed of an upper nut 3 and a lower nut 2 that engage with each other in an eccentric manner to afford the so-called `wedging` effect of surely inhibiting them from loosening themselves. The upper nut 3 has one or more...
08/26/2003
6112371Adjustable hinge assembly
An adjustable hinge assembly is comprised of a track to which is secured a slide member. A sash arm is secured at one end to the slide member and all along to a horizontal rail of a hinged window sash. A support arm is pivotally connected to the sash arm ...
09/05/2000
5971687Fuel pump and method of manufacturing the same
A fuel pump is composed of a permanent-magnet motor section and a pump section. The yoke of the motor section is designed as a part of the magnetic circuit which is saturated with magnetic flux. The quantity of the discharged fuel is adjusted by covering ...
10/26/1999
5919018Locking fastener
A locking fastener (14) includes a threaded bolt (16) and a nut assembly (26) comprising a torque nut (28) and a lock nut (30). The lock nut (30) is threadably received on the bolt (16) and is shiftable to a locked condition in which the lock nut thread a...
07/06/1999
5688088Dynamometric screw or nut
A torque nut or screw that allows the nut to be tightened to a preset maximum torque, but prevents excess tightening. The nut or screw includes inner and outer threaded elements that extend along the same axis. The outer threaded element is tapered with r...
11/18/1997
5027678Cam actuator means with connector assembly
This invention is a cam actuator means with connector assembly with one embodiment being a stud extractor and wrench apparatus operable to utilize a cam insert member mounted within an outer housing member being engagable with a damaged bolt head on a stu...
07/02/1991
4729703Double nut
A double nut comprising a locking nut body having a threaded axial bore, the locking nut body being formed with a recess defined by an annular internal surface and arranged in communication with the axial bore, a tightening nut body having a threaded axia...
03/08/1988
 
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