Stepped Shank Patents (Class 411/490)
  • Patent number: 8833721
    Abstract: Gas turbine engine systems and related methods involving thermally isolated retention are provided. In this regard, a representative method for attaching a gas turbine engine component includes using a fastener, varying in diameter along a length thereof, to prevent a portion of a component from being crimped between surfaces to which the component is attached such that the component moves relative to the surfaces responsive to thermal cycling of a gas turbine engine of which the surfaces and the component are constituent parts.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: September 16, 2014
    Assignee: United Technologies Corporation
    Inventors: Andreas Sadil, Claude I. Barnett, Jr., Ricky A. Daigle
  • Patent number: 8449237
    Abstract: A pin fastener includes a body having a first end that extends to a second end through an intermediate portion. The intermediate portion includes a first substantially constant diameter section that extends from the first end toward the second end, a first tapered section that extends from the first substantially constant diameter section, a second substantially constant diameter section that extends from the first tapered section, and a second tapered section that extends from the second substantially constant diameter portion to the second end. The pin fastener further includes a knurled section formed in the second substantially constant diameter portion.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: May 28, 2013
    Assignee: Black & Decker Inc.
    Inventors: Alan J. Armiento, Douglas L. Rose
  • Publication number: 20110318139
    Abstract: A nail is used to fasten wood, plastic, shingles, siding and composite items together. A nail has a head and a shank or shaft. A nail is typically made of a steel or metal alloy but could be made of other materials. The nail is different from conventional nails in that its shank or shaft is not straight or twisted. The shank is tapered. The end near the head of the nail is smaller in diameter then the end that penetrates the material (the point). The shank tapers from the point progressively until it reaches a section near the head that expands to the same diameter as the shank near the point. The shank then tapers again until it reaches the head. The amount of taper varies with the different applications of the nail. The nail's shank also has rounded rings toward the head end of the shank. The rings provide the nail with stability against the host material until the host material rebounds against the tapered shank.
    Type: Application
    Filed: June 29, 2010
    Publication date: December 29, 2011
    Inventor: Robert Paul Tarleton
  • Publication number: 20090290957
    Abstract: A fastener has a rod body that has a proximal end, a distal end, a head and an engaging segment. The head is formed on the proximal end. The engaging segment is formed between the proximal end and the distal end and has multiple teeth formed around the engaging segment. The rod body has a diameter gradually decreasing from the proximal end to the distal end. Accordingly, the fastener is convenient in combining two boards without using any tool.
    Type: Application
    Filed: May 21, 2008
    Publication date: November 26, 2009
    Applicant: GRACE CHANCE ENTERPRISE CO., LTD,
    Inventor: Wen-Te Ho
  • Patent number: 7040851
    Abstract: A nail-shaped fastening element including a first, conical section (1, 11 21) tapering in a setting direction of the fastening element and having a shaped surface profile extending at least along a portion of the first section, and a second section (2, 12, 22) adjoining the first section (1, 11, 21) at end of the first section remote from the fastening element tip (5, 15, 25).
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: May 9, 2006
    Assignee: Hilti Aktiengesellschaft
    Inventors: Jens-Jörg Esser, Reimund Schlosser, Dietmar Binder, Markus Durig, Alexander Kindle
  • Patent number: 6851906
    Abstract: A nail-shaped fastening element having a stem, and a head (3, 13, 23, 33) provided at one end of the stem and projecting radially beyond the stem with the stem tapering at its another, free end toward a tip (5, 15, 25, 35) and having a spherical, first section (1, 11, 21, 31) extending from the tip (5, 15, 25, 35) in a direction toward the head (3, 13, 23, 33), and a second conical section (2, 12, 22, 32) adjoining the first section (1, 11, 21, 31) and having a length (L2, L12, L22, L32) smaller than a length (L1, L11, L21, L31) of the first section (1, 11, 21, 31).
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: February 8, 2005
    Assignee: Hilti Aktiengesellschaft
    Inventors: Horst-Detlef Gassmann, Hans Hachtel, Jens-Jörg Esser, Ralf Laternser
  • Patent number: 6116836
    Abstract: An insulated wall includes first and second spaced apart layers of concrete having a layer of insulating material sandwiched therebetween. Extending through the insulative layer are a plurality of spike connectors having their opposite ends protruding into the two concrete layers and having their central portions extending through the insulating material. On of the opposite ends of the spike connectors is pointed so as to permit it to be punched through the insulative layer. The opposite ends of the spikes each include a holding surface facing at least partially toward the central insulative layer and holding the concrete layers against movement away from the insulative layer. C-shaped connectors may also be used in a similar fashion with hook ends hooked over elongated cables extending within the two concrete layers so as to tie them together.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: September 12, 2000
    Assignee: Composite Technologies Corporation
    Inventor: Robert T. Long, Sr.
  • Patent number: 5788444
    Abstract: A fastener assembly having a stud frictionally retained within a plate. The stud having a head at one end and a point or taper at the other end. The stud having a first shank portion with a large diameter adjacent the head and a second shank portion with a smaller diameter adjacent the tapered or pointed end. The larger diameter first shank portion being frictionally or press fit into an aperture formed in the plate or washer. The plate or washer may have a flat, conical, curved, or channeled shape with a conical raised portion thereon so as to hold the fastener a relatively long longitudinal distance up along the shaft or shank of the stud. The transitional shoulder between the different diameters of the shank may be square, angled or round. The use of different diameter portions improves penetrating and holding power of the fastener assembly while permitting relatively easy penetration of a substrate.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: August 4, 1998
    Inventor: Al Losada
  • Patent number: 5730570
    Abstract: A fastening element such as a bolt, nail and the like to be driven into a receiving material, is formed of a high corrosion resistant steel. The fastening element has an axially extending leading region (1) to be driven into the receiving material and trailing region (2) with the two regions forming a single monolithic member. The diameter of the trailing region (2) is greater than that of the leading region (1) and has a hardness in the range of 35-43 Rockwell C hardness while the leading region has a hardness in the range of 46-55 Rockwell C hardness.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: March 24, 1998
    Assignee: Hilti Aktiengesellschaft
    Inventors: Tobias Buhofer, Gunter Rohrmoser
  • Patent number: 4381622
    Abstract: A lawn edge and/or trim construction comprising a carpet of synthetic turf secured to the ground employed around fences, flower beds, residential structures, and any other structure to edge such structure or to impede the growth of vegetation for a more aesthetically appealing lawn area. A preferred type of anchor for the lawn edge construction is also disclosed comprising a stake having a head portion overlapping the substrate base of the synthetic turf, an extended portion having multiple grooves along the axial extent thereof, a throughbore at an intermediate portion of the extended portion, and a notch disposed between said head portion and said extended portion to hold the stake to the base of the turf, the head portion having a cap of synthetic turf to disguise the stake when holding the turf in place, and a method for installing such construction.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: May 3, 1983
    Assignee: Alan L. Kaufman
    Inventor: Vernon B. Spidell