Búsqueda Imágenes Maps Play YouTube Noticias Gmail Drive Más »
Iniciar sesión
Usuarios de lectores de pantalla: deben hacer clic en este enlace para utilizar el modo de accesibilidad. Este modo tiene las mismas funciones esenciales pero funciona mejor con el lector.

Patentes

  1. Búsqueda avanzada de patentes
Número de publicaciónUS20040240963 A1
Tipo de publicaciónSolicitud
Número de solicitudUS 10/884,100
Fecha de publicación2 Dic 2004
Fecha de presentación2 Jul 2004
Fecha de prioridad25 Oct 2001
También publicado comoUS6772500, US20030093890
Número de publicación10884100, 884100, US 2004/0240963 A1, US 2004/240963 A1, US 20040240963 A1, US 20040240963A1, US 2004240963 A1, US 2004240963A1, US-A1-20040240963, US-A1-2004240963, US2004/0240963A1, US2004/240963A1, US20040240963 A1, US20040240963A1, US2004240963 A1, US2004240963A1
InventoresRalph Luhm
Cesionario originalRalph Luhm
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Two piece tack rivets
US 20040240963 A1
Resumen
A two piece tack rivet includes a stem and a locking collar. The stem has a head at a first end, a grooved stem region extending from an opposing second end toward the first end, and a cylindrical section between the head and the grooved stem region. The cylindrical section includes a plurality of spin prevention embellishments such as knurls or spline-like surface textures. The cylin spin prevention embellishments may be adapted to provide positive engagement in a hole in a work piece. The locking collar is hollow and adapted to be deformably joined to the grooved stem region. The locking collar may include a flange adapted to bear against an adjacent surface of the work piece.
Imágenes(5)
Previous page
Next page
Reclamaciones(21)
What is claimed is:
1. A two piece tack rivet comprising:
a stem having a head at a first end, a grooved stem region extending from an opposing second end toward the first end, and a cylindrical section between the head and the grooved stem region, the cylindrical section including a plurality of spin prevention embellishments; and
a hollow locking collar adapted to be deformably joined to the grooved stem region.
2. The two piece tack rivet of claim 1, wherein the plurality of spin prevention embellishments includes a plurality of spline-like surface textures.
3. The two piece tack rivet of claim 1, wherein the plurality of spin prevention embellishments includes a plurality of knurls.
4. The two piece tack rivet of claim 1, wherein the plurality of spin prevention embellishments are adapted to provide positive engagement in a hole in a work piece.
5. The two piece tack rivet of claim 1, wherein the head of the stem includes a work piece facing surface having a plurality of outwardly projecting ridges.
6. The two piece tack rivet of claim 1, wherein the head of the stem includes a work piece facing surface having a plurality of knurls.
7. The two piece tack rivet of claim 1, wherein the head of the stem includes a central drill centering depression.
8. The two piece tack rivet of claim 1, wherein the grooved stem region is terminated at the second end by a tapered stem tip.
9. The two piece tack rivet of claim 1, wherein the stem is solid.
10. The two piece tack rivet of claim 1, wherein the locking collar includes a flange adapted to bear against an adjacent surface of a work piece.
11. A two piece tack rivet comprising:
a stem having a head at a first end, a grooved stem region extending from an opposing second end toward the first end, and a cylindrical section between the head and the grooved stem region, the cylindrical section including spin prevention means for preventing spinning of the stem in an outer work piece; and
locking means for deformable joining to the grooved stem region.
12. The two piece tack rivet of claim 1, wherein the spin prevention means includes a spline-like surface texture.
13. The two piece tack rivet of claim 1, wherein the spin prevention means includes a plurality of knurls.
14. The two piece tack rivet of claim 1, wherein the spin prevention means is adapted to provide positive engagement in a hole in a work piece.
15. The two piece tack rivet of claim 1, wherein the head of the stem includes a work piece facing surface having a plurality of outwardly projecting ridges.
16. The two piece tack rivet of claim 1, wherein the head of the stem includes a work piece facing surface having a plurality of knurls.
17. The two piece tack rivet of claim 1, wherein the head of the stem includes a central drill centering depression.
18. The two piece tack rivet of claim 1, wherein the grooved stem region is terminated at the second end by a tapered stem tip.
19. The two piece tack rivet of claim 1, wherein the stem is solid.
20. The two piece tack rivet of claim 1, wherein the locking means includes a flange adapted to bear against an adjacent surface of a work piece.
21. A two piece tack rivet comprising:
a solid stem having
a head at a first end,
a grooved stem region extending from an opposing second end toward the first end, and
a cylindrical section between the head and the grooved stem region, the cylindrical section including a plurality of knurls adapted to provide positive engagement in a hole in a work piece; and
a hollow locking collar adapted to be deformably joined to the grooved stem region, the locking collar including a flange adapted to bear against an adjacent surface of the work piece.
Descripción
    CROSS REFERENCE TO RELATED APPLICATIONS
  • [0001]
    This application is a continuation of application Ser. No. 09/989,834, filed Nov. 20, 2001, allowed, which claims the benefit of U.S. Provisional Patent Application No. 60/350,167 filed on Oct. 25, 2001.
  • BACKGROUND OF THE INVENTION
  • [0002]
    1. Field of the Invention
  • [0003]
    The present invention relates to the field of temporary fasteners, as are typically used to hold work pieces together while permanent fasteners are installed.
  • [0004]
    2. Prior Art
  • [0005]
    Temporary fasteners are frequently used in manufacturing to hold work pieces together while permanent fasteners are installed. Such fasteners are installed in a few holes in the work pieces to align and pull the parts together that are to be joined so that permanent fasteners may be installed in the remaining holes, after which the temporary fasteners are removed for installation of permanent fasteners in these holes also.
  • [0006]
    Ideal temporary fasteners may have various characteristics, depending on their application. In general, as previously mentioned, temporary fasteners are intended to align and pull the parts together so that permanent fasteners may be installed. Consequently, a temporary fastener should have the capability of pulling together work pieces that may initially have a substantial separation (commonly referred to as “sheet takeup”), so that the installer does not have to resort to other means to pull the work pieces together sufficiently to properly install the temporary fastener.
  • [0007]
    Also, while the work pieces will not be subjected to the same loads they may encounter in use after the permanent fasteners are installed, the temporary fasteners typically will only be installed in a small percentage of the fastener holes in the work pieces, such as every tenth hole or so. This, plus a desired large and strong sheet takeup capability, makes temporary fastener strength an important parameter.
  • [0008]
    Other important parameters for temporary fasteners include low fastener cost, and ease of installation and removal. Simplicity of fastener design and assembly, together with a simple installation operation contributes to low cost and ease of operation, as does a large and strong sheet takeup capability. Removal of temporary fasteners varies with the fastener design, some fasteners being disassembled for removal and others being drilled out for removal. Drilling out of temporary fasteners is perfectly acceptable and may be a favored method of temporary fastener removal, provided the fastener is a low cost fastener and the drilling operation itself doesn't foster other complications.
  • [0009]
    In some applications, temporary fasteners must be installable and removable with access to only one side of the work pieces. Fasteners of this type, such as disclosed in U.S. Pat. No. 5,689,873 entitled “Tacking Fastener” and assigned to the assignee of the present invention, are referred to as blind temporary fasteners. The present invention is intended for use in applications where access to both sides of the work pieces is available.
  • SUMMARY OF THE INVENTION
  • [0010]
    Two piece tack rivets and method of forming holes for permanent fasteners are disclosed. The tack rivets have a stem with a head on one end and a grooved region adjacent the other end, and a locking collar for fitting over the grooved region of the stem for deforming into the grooved region of the stem on applying a setting force between the locking collar and the stem. The stem is placed through a hole in the work pieces, the locking collar is put over the stem portion protruding from the other side of the work pieces, and the setting force is applied. Once the rivet is set, the rivet may be later drilled out with a drill larger in diameter than the head of the stem to form the hole for the permanent fastener. Various embodiments are disclosed.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0011]
    [0011]FIG. 1 illustrates one embodiment of the stem for the tack rivet of one embodiment of the present invention.
  • [0012]
    [0012]FIG. 2a illustrates one configuration for the grooved stem region 24 of the stem embodiment of FIG. 1.
  • [0013]
    [0013]FIG. 2b illustrates one alternate configuration for the grooved stem region 24 of the stem embodiment of FIG. 1.
  • [0014]
    [0014]FIG. 3 illustrates one configuration for the grooved stem region 27 of the stem embodiment of FIG. 1.
  • [0015]
    [0015]FIG. 4 illustrates outwardly projecting ridges on the taper 28 on the head 22 of the stem embodiment of FIG. 1 as one exemplary technique to discourage rivet head spinning during drill-out.
  • [0016]
    [0016]FIG. 5 illustrates one embodiment of the locking collar for the two piece tack rivets of the present invention.
  • [0017]
    [0017]FIG. 6 is a partial cross section of the tacking rivet of the present invention passing through complimentary holes in work pieces.
  • [0018]
    [0018]FIG. 7 is a partial cross section of a finally set rivet of the present invention before stem fracture occurs.
  • [0019]
    [0019]FIG. 8 is a partial cross section of a finally set rivet of the present invention after stem fracture occurs.
  • [0020]
    [0020]FIG. 9 illustrates the use of a drill larger in diameter than the head of the temporary rivet for rivet removal.
  • [0021]
    [0021]FIGS. 10, 11 and 12 illustrate exemplary alternate rivet head shapes.
  • [0022]
    [0022]FIG. 13 shows an exemplary alternate embodiment of locking collar that may be used with the present invention.
  • [0023]
    [0023]FIG. 14 illustrates the assembly of a tack rivet using the locking collar of FIG. 13 before setting the rivet.
  • [0024]
    [0024]FIG. 15 illustrates the tack rivet of FIG. 14 after setting and before stem fracture.
  • [0025]
    [0025]FIG. 16 illustrates the tack rivet of FIG. 14 after setting and after stem fracture.
  • DETAILED DESCRIPTION OF THE INVENTION
  • [0026]
    There is disclosed herein two piece tack rivets having excellent sheet takeup and higher strength than other tack rivets, and which tack rivets are easily drilled out for installation of permanent rivets.
  • [0027]
    The two piece tack rivets of the present invention comprise a stem and a collar. One embodiment of the stem for the tack rivet of the present invention may be seen in FIG. 1. As shown therein, the stem is characterized by a cylindrical section 20, a head 22 and a grooved stem region generally indicated by the numeral 24, terminating at the lower end thereof at a tapered stem tip 26. The grooved stem region 24 is characterized by a first stem region 25 adjacent to the cylindrical section 20, illustrated in FIG. 2a, and a second stem region 27 illustrated in FIG. 3 between the first stem region and the tapered stem tip 26. In particular, as illustrated in the detail of FIG. 2a, the first stem region is preferably characterized by circular grooves having a shape for good gripping of a cylindrical collar forced thereinto, and resistance to movement of the collar along the stem in a direction toward the stem tip 26. Of course the specific configuration of the circular grooves shown in FIG. 2a may be varied as desired, with one alternate shape of the grooves illustrated in FIG. 2b. These, however, are representative only, as other shapes may be used as desired.
  • [0028]
    One configuration for the shape of the second stem region is illustrated in the detail of FIG. 3, which preferably has a shape corresponding to that generally used for a blind rivet stem so that the same may be gripped for pulling with conventional blind rivet pulling heads. Obviously here too, other shapes may be used as desired. In some embodiments, the diameter over the pulling grooves (FIG. 3) on the second stem region 27, and particularly the diameter over the grooves in the first stem region 25, is approximately equal or only slightly less than the diameter of the cylindrical section 20 adjacent the head of the tack rivet stem. The minor diameter on the circular grooves in the first stem region 25 (FIG. 2a or FIG. 2b, for example) is preferably less than minor diameter in the circular grooves in the second stem region 27, the function of which diameter difference shall be subsequently described. While the surfaces of the first and second stem regions may be other than configured as circular grooves, circular grooves are preferred as being easily and accurately formed by conventional rolling processes.
  • [0029]
    Now referring to FIG. 5, one embodiment of the locking collar for the two piece tack rivets of the present invention may be seen. This embodiment for the locking collar is a simple, hollow cylindrical member 34 having a loose slip fit over the stem 24 and the cylindrical section 20 of the stem shown in FIG. 1. In one embodiment, both ends of the collar 34 have a slight taper, though use of the taper is optional. Preferably, though not necessarily, both ends of the collar will be of the same configuration, tapered or not, to make the collar symmetrical to avoid the need to properly endwise orient the collar on the stem.
  • [0030]
    Now referring to FIG. 6, a partial cross section of the tacking rivet of the present invention passing through complimentary holes in work pieces 36 and 38 may be seen. As shown therein, the taper 28 on the head 22 of the stem rests against the surface of one work piece, while the second work piece is shown separated from the first work piece by a substantial spacing to emphasize the sheet takeup capability of the present invention. Also shown in the Figure is the collar 34 of FIG. 5 as slid over the stem 24 and positioned against the second work piece. A pulling head, substantially the same as used to pull blind rivets, on a rivet installation tool fitted with a special hollow anvil 40 grips the second or gripping region 27 of the stem, and exerts a force between the stem and the anvil. This causes the anvil, which has a smaller inner diameter than the outer diameter of the collar 34, to first slide the collar toward the head of the stem to draw the work pieces together with substantial force, and to thereafter slide over the collar to deflect or extrude the material thereof inward into the circular grooves in the first stem region 25. (The collar outer diameter, the anvil inner diameter, or preferably both, may have a chamfer or taper on the end thereof to assist in this action.) Ultimately when the collar is positively locked into the circular grooves in the first region of the stem, the anvil may contact the second work piece. The pulling force will continue to rise until the second stem region (the pulling portion) fractures. Because the minor diameter of the grooves in the first stem region 25 is less than the minor diameter of the grooves in the pulling portion of the stem 27, the stem will fracture somewhere in the first stem region 25. Also, because the collar as extruded over the grooves in part of the first stem region in the set rivet tend to reinforce that region, the break will occur somewhere between the distal end of the set collar and the junction between the first stem region and the second stem region. Preferably the difference in minor diameters is in the range of 5% to 15%, and more preferably approximately 8% to 10%. Once the pulling action is complete, an ejection sleeve 41 will move forward to contact the set sleeve 34, after which the anvil 40, now fitting tightly over the sleeve, will be retracted, followed by the retraction of the ejection sleeve itself.
  • [0031]
    The finally set rivet before stem fracture is shown in FIG. 7, and after stem fracture in FIG. 8. In these Figures, the work pieces are shown curved for emphasis of the sheet takeup capabilities of the present invention, both in the amount of sheet takeup and in the force of the sheet takeup. In that regard, in one embodiment, the rivet stem is ⅛ inches in diameter and 2.5 inches long, with the second stem region 27 (the pulling portion) having a minor diameter in the grooves of approximately 0.109 inches and extending ⅞ inches from the tapered tip-of the stem. (The first stem region in that embodiment has a minor diameter of approximately 0.100 inches.) This provides a grip range for the rivet of ⅜ inches to 1.5 inches. While FIGS. 7 and 8 show only the cylindrical section 20 of the stem (FIG. 1) in the hole in the work pieces in the finished assembly, part of the circular grooved region of the first stem region 25, and a substantial part at that, may also be in the hole in the work pieces by the time the rivet is set, depending on the total thickness of the work pieces within the grip range.
  • [0032]
    One of the advantages of the present invention over certain other tack rivets is their increased strength for their size. While the present invention stems are preferably rolled parts of 2017, 2024, 7050 or 7075 aluminum alloy, and the collars are preferably 2017, 2117, 2024 or 5056 aluminum alloy, the additional strength comes from the fact that the stems are solid, whereas certain other tack rivets are blind rivets, leaving the set rivet with only a hollow shank filling the hole in the work pieces. Another advantage of the present invention arises from the tapered distal end on the stem, allowing the installer to more easily insert the rivet into the hole in the work pieces, and even to help finally align the work pieces through action of the taper being pushed through the hole in the first work piece and into the hole in the subsequent work piece or pieces.
  • [0033]
    It will be noted from the Figures, such as FIG. 1, that the head of the stem includes a central depression. This is a drill centering depression for drilling out the tacking fastener, typically after permanent fasteners have been installed in adjacent fastener holes in the work pieces. For this purpose, preferably a drill larger in diameter than the head of the rivet is used, as illustrated in FIG. 9. If the included angle of the taper of the drill is larger than the included angle of the taper on the head 22 of the stem (FIG. 1), the drill will remove all of the head material before engaging the first work piece, avoiding any possibility of the drill tip grabbing a remaining head segment and spinning the same on the surface of first work piece.
  • [0034]
    In one embodiment, to avoid the possibility of the drill grabbing the head and spinning the entire rivet rather than drilling it out, the taper 28 on the head 22 of the stem (FIG. 1) has outwardly projecting ridges, as shown in FIG. 4 (three being shown therein, though any number, including a large number resembling a spline-like surface could be used), to better grip the first work piece and prevent such spinners. Alternatively, or in addition, other spin prevention embellishments may be incorporated, such as knurling of the cylindrical section 20 so that it has a tight fit in the holes in the work pieces to grip the same to also resist spinning.
  • [0035]
    The tapered stem head shown on FIG. 1 is preferred because of its ability to be entirely drilled away before the drill starts drilling into the work pieces. However the present invention may be practiced with other head shapes. The head may be cylindrical such as shown in FIG. 10. The head may have other curved shapes. FIG. 11 shows an exemplary head that provides a chamfered transition between the head and the stem. FIG. 12 shows an exemplary head that provides a filleted transition between the head and the stem. The head may even be dome headed. Regardless of the head shape, the head may include a coaxial drill centering depression for drill alignment and drill wander minimizing purposes.
  • [0036]
    The work piece facing surface of any stem head shape may be ribbed as previous described with respect to FIG. 4, or even have a surface similar to a knurled surface for spin resistance. As a further alternative, the stem adjacent the head may have, instead or in addition, a few ribs, or even a spline-like surface texture for positive engagement by way of a tight fit into the hole in at least the outer work piece to prevent spinning. Note that on removal of the tack rivet, once the head is drilled away and the drill is centered on the hole in the outer work piece, spinning of the remainder of the rivet is of no consequence, as it will simply be pushed out of the work pieces as the drill advances through the work pieces.
  • [0037]
    Similarly, other parts or sections of the invention may be reconfigured as desired for the intended purpose. By way of a further example, the locking collar may be configured as shown in FIG. 13. In this embodiment, one end of the collar may be the same as for the embodiment of FIG. 5, while the other end is provided with a flange or head-like protrusion. In use, the stem is put in position through the holes in the work pieces, the collar is slid over the stem with the flange against the surface of the adjacent work piece as shown in FIG. 14, and the pulling tool or gun then applied and the rivet pulled. This way, the anvil on the pulling tool continues to force the collar against the work piece (FIG. 15) until the stem fractures (FIG. 16), whereas the final fracturing force for the earlier described embodiment comes from the anvil pressing against one of the work pieces. Preferably in this latter embodiment, the flange 42 has an angled or conical surface 44, with the anvil on the pulling tool being angled in a complimentary manner so that the final stem fracturing force also provides a final squeeze or compression force enhancing the collar locking action immediately adjacent the work pieces. While this embodiment makes the collar operation end-to-end orientation dependent, the collar is more than sufficiently unsymmetrical to allow an installer to feel the difference for proper installation without diverting his attention to look at the collar.
  • [0038]
    While preferred embodiments of the present invention have been disclosed herein, such disclosure is only for purposes of understanding exemplary embodiments and not by way of limitation of the invention. It will be obvious to those skilled in the art that various changes in form and detail may be made in the invention without departing from the spirit and scope of the invention.
Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US1120411 *11 Mar 19148 Dic 1914Cinch Expansion Bolt & Engineering CompanyLead-packed anchor device.
US1941551 *27 Feb 19302 Ene 1934Flannery Bolt CoStaybolt cap removing tool
US1969796 *16 Sep 193214 Ago 1934Dardelet Threadlock CorpSeparable fastener and installation thereof
US2061628 *3 Ago 193224 Nov 1936Huxon Holding CorpRiveted structure and method of making the same
US2232336 *18 Jul 193818 Feb 1941Meersteiner FriedaFastening sorew
US2253353 *21 Ago 193919 Ago 1941Roy A SharpAwning for automotive vehicle windshields and the like
US2314898 *25 Jun 194130 Mar 1943Patent Button CoFluted shank fastener
US2385886 *5 Nov 19422 Oct 1945Cherry Rivet CompanyRivet
US2538623 *14 May 194516 Ene 1951Cherry Rivet CompanyRivet assembly
US2545752 *9 Ago 194620 Mar 1951Bendix Aviat CorpRivet
US2546602 *14 May 194527 Mar 1951Cherry Rivet CompanyRivet with self-locking mandrel
US2652741 *4 Ago 195022 Sep 1953Cherry Rivet CompanyBlind rivet with clincher
US2756624 *6 May 195231 Jul 1956Lockheed Aircraft CorpBlind rivet with locked mandrel
US2955505 *25 Nov 195711 Oct 1960Hi Shear Rivet Tool CompanyPin with enlarged rib to provide prestressing
US3038626 *19 Jul 196012 Jun 1962Townsend CompanyMechanism for setting rivets
US3178989 *26 Feb 196220 Abr 1965Olympic Screw & Rivet CorpBlind rivet with setting pin having successively deeper locking grooves
US3257890 *18 Dic 196428 Jun 1966Ludwig KraemerBlind riveted joint
US3285121 *19 May 196515 Nov 1966George SiebolBlind rivet
US3292482 *27 Ago 196420 Dic 1966Avdel LtdSelf-plugging blind fastening device
US3300798 *10 Mar 196431 Ene 1967Textron Ind IncBlind sealing rivet and method of making the same
US3309747 *27 Oct 196421 Mar 1967United Shoe Machinery CorpFastening devices
US3348444 *28 Oct 196524 Oct 1967United Shoe Machinery CorpExpansion fastener with dual threaded engagement means
US3371572 *1 Nov 19655 Mar 1968John O. King Jr.Locking bolt and locking means therefor
US3459447 *13 Dic 19665 Ago 1969Huck Mfg CoFlush fastener for panel assembly including soft core material
US3515419 *1 Jul 19682 Jun 1970Huck Mfg CoContainer fastener
US3553040 *21 Sep 19675 Ene 1971Star Expansion Ind CorpMethod for surface treatment of blind rivets
US3643544 *27 Feb 196922 Feb 1972Nat Screw & Mfg Co TheHigh-strength structural blind fastener for use in airplanes, rockets and the like
US3880042 *28 Ago 197329 Abr 1975Binns Lloyd SylvesterBlind rivet
US3937123 *8 Abr 197410 Feb 1976Textron Inc.Blind fastener with shear washer
US4044591 *29 Jun 197630 Ago 1977Usm CorporationBlind rivet and improved method of blind riveting
US4074608 *13 May 197721 Feb 1978Armco Steel CorporationBlind spacer fastener
US4089249 *27 Sep 197616 May 1978Binns Lloyd SylvesterHole filling blind rivet
US4137817 *1 Jun 19766 Feb 1979Olympic Fastening Systems, Inc.Blind rivet with recessed expanding head
US4168650 *5 Oct 197725 Sep 1979Sps Technologies, Inc.Blind fastener
US4170920 *31 Oct 197716 Oct 1979Olympic Fastening Systems, Inc.Blind spacer fastener
US4198895 *24 Mar 197822 Abr 1980Huck Manufacturing CompanyFatigue performance collars and lockbolt construction
US4211145 *2 Sep 19758 Jul 1980Mecano-Simmonds GmbhBlind rivet
US4222304 *26 Ago 197716 Sep 1980Nifco Inc.Blind rivet
US4230017 *12 Oct 197828 Oct 1980Huck Manufacturing CompanyPull-type blind fastener construction
US4261245 *13 Jul 197914 Abr 1981Usm CorporationFastener
US4293258 *10 Jul 19796 Oct 1981Microdot Inc.Self drilling blind rivet
US4312613 *5 Nov 198026 Ene 1982Binns Lloyd SylvesterBlind rivet assembly
US4342529 *14 Ene 19813 Ago 1982Huck Manufacturing CompanyMultigrip fastener
US4355934 *26 Sep 198026 Oct 1982Aerpat A.G.Self-plugging blind rivet
US4364697 *27 Jul 197921 Dic 1982Sps Technologies, Inc.Blind fastener assembly
US4367994 *4 Ago 198011 Ene 1983Aerpat A.G.Blind fastener and method of manufacture thereof
US4370081 *8 Sep 198125 Ene 1983Briles Franklin SBlind fastener with work gripping head
US4388031 *3 Oct 198014 Jun 1983Rodgers Earl TBlind fastener device
US4407619 *19 May 19804 Oct 1983Olympic Fastening SystemsBlind fastener with deformable clamping means
US4437805 *26 Ene 198120 Mar 1984Huck Manufacturing CompanyMultigrip fastener
US4451189 *12 Mar 198129 May 1984Monogram Industries, Inc.Bulb rivet
US4473914 *30 Sep 19822 Oct 1984Huck Manufacturing CompanyMethod and apparatus for manufacturing a stop and lock shoulder for a blind fastener sleeve
US4540447 *9 Jun 198310 Sep 1985Huck Manufacturing CompanyMethod of making a multigrip fastener and fastener made thereby
US4556351 *16 Nov 19843 Dic 1985Phillips Plastics CorporationExpansion rivet assembly
US4579491 *17 Feb 19841 Abr 1986Sps TechnologiesBlind fastener assembly
US4580936 *29 Feb 19848 Abr 1986Advel LimitedBlind rivet assembly
US4585383 *1 Oct 198429 Abr 1986Ludwig KraemerBlind rivet
US4609315 *19 Mar 19842 Sep 1986Briles Franklin SCorrosion resistant dual tapered head fastener and panel composite
US4609317 *9 Ago 19852 Sep 1986Huck Manufacturing CompanyFastening system including a pull type fastener for constructing articles such as shipping containers and the like
US4615655 *12 Jun 19857 Oct 1986Huck Manufacturing CompanyPull type fastener and fastening system for constructing articles such as shipping containers and the like
US4620825 *26 Nov 19844 Nov 1986Usm CorporationPull-type blind-riveting assemblies
US4627775 *1 Sep 19839 Dic 1986Huck Manufacturing CompanyBlind fastener with grip compensating means
US4639174 *9 Nov 198427 Ene 1987Avdel LimitedSelf-plugging blind rivet
US4678384 *13 Jun 19867 Jul 1987Lockheed CorporationControlled expansion blind fastener design
US4682520 *15 Nov 198428 Jul 1987Northrop CorporationMechanically lockable fastener assembly
US4696610 *18 Sep 198529 Sep 1987Wright Jewel LBlind fastener
US4702655 *27 Ago 198527 Oct 1987Huck Manufacturing CompanyFastening system including an improved interference fit blind fastener and method of manufacture
US4736560 *1 Dic 198612 Abr 1988Engineered Construction Components (America)Peel rivet
US4765787 *4 May 198723 Ago 1988Briles Franklin SBlind fastener positively locking to work, and employing interior locking ring
US4781500 *14 Abr 19871 Nov 1988Emhart Enterprises, Corp.Metal blind rivet
US4781501 *21 Dic 19871 Nov 1988Avdel LimitedSelf-plugging blind fastener
US4852376 *5 Oct 19871 Ago 1989Huck Manufacturing CompanyLockbolt installation tool with cartridge feed
US4867625 *9 Dic 198819 Sep 1989Huck Manufacturing CompanyVariable clamp fastener and method
US4988247 *4 May 199029 Ene 1991Summerlin Frederick ABlind rivet and method of making same
US5049016 *30 Abr 199017 Sep 1991Huck Manufacturing CompanySwage fasteners with a high stand-off collar
US5125778 *24 Mar 198930 Jun 1992Huck Manufacturing CompanyFit up swage fastener with a variable and selectively high initial clamp pre-load and method
US5171115 *5 Nov 199115 Dic 1992Huck International, Inc.Swage collar with pintail and fastening system and method
US5315755 *24 Sep 199131 May 1994Huck Patents, Inc.Fastener system including a swage fastener and a tool for installing same
US5548889 *1 Feb 199427 Ago 1996Huck Patents, Inc.Fastener system including a swage fastener and tool for installing same
US5604968 *6 Jun 199525 Feb 1997Huck Patents, Inc.Fastener system including a swage fastener and tool for installing same
US6014801 *29 Abr 199818 Ene 2000Huck InternationalSwage fastening tool
US6233802 *6 Ago 199922 May 2001Huck International, Inc.Low swage load fastener and fastening system
US6325582 *6 Jul 20004 Dic 2001Huck International, Inc.Swage type fastener with low swage load
US6659699 *20 Feb 20029 Dic 2003Airbus Deutschland GmbhLockbolt for forming a mechanically secured and sealant sealed connection between components
USRE1058 *1 Ene 1860 Withdrawn
USRE20055 *31 Mar 19324 Ago 1936 Rivet and method of setting
Clasificaciones
Clasificación de EE.UU.411/383
Clasificación internacionalB21J15/02, F16B19/05, B21J15/50
Clasificación cooperativaY10T29/49821, B21J15/50, F16B19/05, Y10T29/49947, Y10T29/49954, B21J15/022, Y10T29/49956
Clasificación europeaB21J15/50, B21J15/02B, F16B19/05