Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Structure is coaxial – distinct member that restricts nut piece
Statutory Invention Registration
1998-08-18
2001-11-06
Tudor, Harold J. (Department: 3641)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having structure to restrict rotation of threaded, mating...
Structure is coaxial, distinct member that restricts nut piece
C411S237000, C411S551000
Statutory Invention Registration
active
H0002004
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to mechanical fasteners, and more particularly to mechanical fasteners for unique applications. In this regard, the present invention relates to a device that provides unitized attachment and removal features into other than circular holes which enlarge after an established depth. More specifically, the present invention includes an attachment apparatus comprising a rotation limiting member adapted to be threaded onto a threaded member; and a preload nut adapted to be threaded onto a threaded member.
2. Description of the Related Art
Examples of conventional fasteners include:
U.S. Pat. No. 5,439,337, issued Aug. 8, 1995 to Kakimoto who reveals a lock nut where the nut closest to the bolt head and the intermediate nut are engaged with each other in only the peripheral direction.
U.S. Pat. No. 5,362,187, issued Nov. 8, 1994 to Scalise who describes a releasable locking fastener including a collar and resilient locking prongs with shoulders to anchor the bolt to a first member.
U.S. Pat. No. 5,314,279, issued May 24, 1994 to Ewing who represents a locking threaded fastener of the wedge action type.
U.S. Pat. No. 5,190,423, issued Mar. 2, 1993 to Ewing who illustrates a locking fastener with wedge elements therebetween for wedging the nut members apart when the threaded nut member is turned in the loosening direction.
U.S. Pat. No. 5,090,855, issued Feb. 25, 1992 to Terry who represents a locking fastener assembly with co-acting cam surfaces and locking means.
U.S. Pat. No. 4,938,644, issued Jul. 3, 1990 to Runels, and assigned to Eaton Corp., who depicts a bolt and nut lock assembly for releasably locking a bolt to an object.
U.S. Pat. No. 4,534,101, issued Aug. 13, 1985 to Rosan Jr. who portrays a method for installing a locking nut or bolt that includes drilling a bore to accommodate a fastener assembly.
BRIEF SUMMARY OF THE INVENTION
The present invention intended to be claimed includes an attachment apparatus comprising a rotation limiting member adapted to be threaded onto a threaded member; and a preload nut adapted to be threaded onto the threaded member.
The present invention intended to be claimed includes a rotatable unit comprising a rotation limiting member connected to a preload nut.
The present invention intended to be claimed also includes an attachment apparatus comprising a threaded member; a rotation limiting member adapted to be threaded onto the threaded member; and a preload nut adapted to be threaded onto the threaded member.
The present invention to be claimed also includes an attachment apparatus comprising a threaded member; a rotation limiting member threaded onto the threaded member; and a preload nut threaded onto the threaded member.
In accordance with the present invention, the rotation limiting member comprises a plurality of pins; and the preload nut comprises a plurality of slots, preferably wherein the plurality of pins and the plurality of slots are the same in number, which is preferably three.
In accordance with the present invention, the plurality of pins of the rotation limiting member are filled into a corresponding plurality of slots of the preload nut to form a rotatable unit adapted to be threaded onto the threaded member.
In accordance with the present invention, the rotatable unit is preferably threaded onto the threaded member; and preferably, the preload nut is capable of rotating about 60°.
The present invention provides means for attachment of a threaded fastener into an irregular shaped hole that has an established or predetermined depth. An important feature or element of the invention is the use of a rotation limiting means for a preload nut. In accordance with the present invention, the rotation limiting member and the preload nut are contoured to the shape of the hole into which the installation is to take place.
In addition, the apparatus of the present invention provides locking and unlocking by simple rotations of the preload means.
REFERENCES:
patent: 1432050 (1922-10-01), Broderick
patent: 1450048 (1923-03-01), Patterson
patent: 2390325 (1945-12-01), Rapp
patent: 2403247 (1946-07-01), Sullivan
patent: 3592250 (1971-07-01), Petroshanoff
patent: 3927503 (1975-12-01), Wilson
patent: 4534101 (1985-08-01), Rosan
patent: 4938644 (1990-07-01), Runels
patent: 5090855 (1992-02-01), Terry
patent: 5190423 (1993-03-01), Ewing
patent: 5314279 (1994-05-01), Ewing
patent: 5362187 (1994-11-01), Scalise
patent: 5439337 (1995-08-01), Kakimoto
patent: 517379 (1921-05-01), None
patent: 23570 (1968-10-01), None
Gottlieb Paul A.
Lucas John T
Moser William R.
The United States of America as represented by the United States
Tudor Harold J.
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