Bolts and bolt and nut fasteners

{
  "publication_number": "US11592054B1",
  "country": "US",
  "kind": "B1",
  "title": "Bolts and bolt and nut fasteners",
  "abstract": "A bolt includes a shank having a first end, a second end, a first external thread proximate to the first end, and a second external thread proximate to the second end. The first external thread twists in a first direction, the second external thread twists in a second direction, and the first direction is different from the second direction. The first external thread includes a minor diameter, the second external thread includes a major diameter, and the minor diameter of the first external thread is greater than the major diameter of the second external thread.",
  "claims": [
    "1. A fastener, comprising: a bolt including a shank having a first end, a second end, a first external thread proximate to the first end and including a major diameter, and an unthreaded body separating the first external thread from the second end and including a body diameter; an anchor nut including a first open end, a second open end, a head proximate to the first open end, a second external thread proximate to the second open end and including a minor diameter greater than the major diameter and the body diameter, a radial bearing surface between the head and the second external thread, a first dimension from the radial bearing surface to the second open end, and a first hole extending through the anchor nut from the first open end to the second open end, the first hole comprising a first internal thread extending from the first open end to a runout between the first open and the second open end, the first internal thread configured to thread on the first external thread, and the first hole unthreaded from the runout to the second open end and including an internal diameter greater than the major diameter and the body diameter; a locknut including a first side, a second side, a second dimension from the first side to the second side, and a second hole extending through the locknut from the first side to the second side, the second hole comprising a second internal thread configured to thread on the second external thread; the first external thread and the first internal thread twist in a first direction; the second external thread and the second internal thread twist in a second direction different from the first direction; and the first dimension less than the second dimension, wherein the locknut extends from the first side against the radial bearing surface to the second side outboard of the second open end when the second internal thread is threaded on the second external thread and the locknut is tightened, tightening the first side against the radial bearing surface.",
    "2. The fastener according to claim 1, the bolt further comprising an enlarged head adjacent to the second end.",
    "3. An anchor nut assembly, comprising: an anchor nut including a first open end, a second open end, a head proximate to the first open end, an external thread proximate to the second open end, a radial bearing surface between the head and the external thread, a first dimension from the radial bearing surface to the second open end, and a first hole extending through the anchor nut from the first open end to the second open end, the first hole comprising a first internal thread extending from the first open end to a runout between the first open and the second open end and being unthreaded from the runout to the second open end; a locknut including a first side, a second side, a second dimension from the first side to the second side, and a second hole extending through the locknut from the first side to the second side, the second hole comprising a second internal thread configured to thread on the external thread; the external thread and the first internal thread twist in different directions; and the second dimension less than the first dimension, wherein the locknut extends from the first side against the radial bearing surface to the second side outboard of the second open end when the second internal thread is threaded on the second external thread and the locknut is tightened, tightening the first side against the radial bearing surface.",
    "4. A bolted joint, comprising: a bolt including a shank having a first end, a second end, an enlarged head adjacent to the second end, a first external thread proximate to the first end and including a major diameter, and an unthreaded body separating the first external thread from the second end and including a body diameter, the bolt extending through a first member and a second member, respectively, between the enlarged head against the first member and the first external thread extending outwardly from the second member; an anchor nut including a first open end, a second open end, a head proximate to the first open end, a second external thread proximate to the second open end and including a minor diameter greater than the major diameter and the body diameter, a radial bearing surface between the head and the second external thread, a first dimension from the radial bearing surface to the second open end, and a first hole extending through the anchor nut from the first open end to the second open end, the first hole comprising a first internal thread extending from the first open end to a runout between the first open and the second open end, the first internal thread threaded on the first external thread, and the first hole unthreaded from the runout to the second open end and including an internal diameter greater than the major diameter and the body diameter, the anchor nut extending outwardly to the first open end from the second open adjacent to the second member; a locknut including a first side, a second side, a second dimension from the first side to the second side, and a second hole extending through the locknut from the first side to the second side, the second hole comprising a second internal thread threaded on the second external thread, the locknut between the radial bearing surface and the second member and tightened, the locknut extending from the first end tightened against the radial bearing to the second end outboard of the second open end; the first external thread and the first internal thread twist in a first direction; the second external thread and the second internal thread twist in a second direction different from the first direction; the first member and the second member clamped between the head against the first member and the second side of the locknut against the second member; the locknut clamped between the radial bearing surface and the second member; and the first dimension less than the second dimension, disabling the second open end from contacting the second member."
  ],
  "description_excerpt": "The present invention generally relates to bolts, bolt and nut fasteners, and bolted joints.\n\nIn many manufactured products, it is essential to join two or more elements or surfaces together. Bolted joints are useful for this when the elements require periodic disassembly and assembly without destroying the joint. Bolted joints include fasteners that capture and join other parts, and are secured by mating screw threads. A bolted joint is either a soft joint or a hard joint. A soft-bolted joint is when the hardness of at least one of the elements is below 30 RC. A hard-bolted joint is when the hardness of all the elements is greater than 30 RC. A bolted joint may use a through-hole or a tapped hole. A through-hole or stud joint relies on parts joined together using a stud. A tapped hole or screw joint relies on parts joined together using a threaded hole and a threaded fastener. The objective of a bolted joint is to maintain joint cohesiveness, whether a tension joint or a shear joint. The axial forces exerted by the parts of a tension joint try to separate the joint. Accordingly, the bolt of a tension joint must serve as a clamp to hold the parts together. The shear forces exerted by the elements of a shear joint try to separate the joint. Accordingly, the bolt of a shear joint must serve as a pin to keep the parts stationary.\n\nA standard bolt is a longitudinally straight shank including a first end, a second end, a head proximate to the first end, and an external thread. The external thread between the first and second ends is configured to thread on an internal thread of a tapped nut, through-hole, or blind hole.",
  "cpc": [
    "F16B 39/38",
    "F16B 31/04",
    "F16B 35/041",
    "F16B 37/00",
    "F16B 39/122",
    "F16B 43/00",
    "F16B 5/0241"
  ],
  "ipc": [
    "F16B 31/04",
    "F16B 37/00",
    "F16B 39/38"
  ],
  "assignees": [
    "KEMENY ZOLTAN A"
  ],
  "inventors": [
    "KEMENY ZOLTAN A"
  ],
  "filing_date": "2022-02-21",
  "publication_date": "2023-02-28",
  "grant_date": "2023-02-28",
  "priority_date": "2021-01-04",
  "application_number": "US-202217676466-A",
  "family_id": "85289305",
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}