Defining A Smooth Curving, Noncircular Thread Section (e.g., Elliptically Shaped) Patents (Class 411/282)
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Patent number: 11761468Abstract: A stud clip assembly is provided. The stud clip assembly includes a clip having a mounting platform and a retention platform. The mounting platform includes a mounting bore that extends away from the retention platform and that defines a mounting aperture. The mounting aperture includes a threaded portion formed therein and a collar arranged at a first end thereof. The stud clip assembly further includes a fastening element configured to be threaded into the threaded portion of the mounting aperture. The collar is configured to be crimped onto the fastening element.Type: GrantFiled: February 13, 2020Date of Patent: September 19, 2023Assignee: Illinois Tool Works Inc.Inventor: Gregory George Buczynski
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Patent number: 10350718Abstract: A hybrid fastener comprises a composite body having a tip, and a metal sleeve surrounding and locked to the tip.Type: GrantFiled: December 15, 2015Date of Patent: July 16, 2019Assignee: The Boeing CompanyInventor: Adriana Willempje Blom
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Patent number: 6711801Abstract: The present invention in accordance with one embodiment provides a method for securing a threaded fastener to an object having a surface, the method comprising the steps of: (a) defining in the object with an inner wall a threaded hole, a bore contiguous with the threaded hole, and a slot contiguous with the bore, the bore being disposed between the threaded hole and the surface; (b) inserting into the bore a fastener assembly including the threaded fastener, an internally-threaded retainer disposed about the threaded fastener having a lug such that the internally-threaded retainer is received by the bore and the lug is received by the slot to rotatably lock the collar to the inner wall, the internally-threaded collar having a substantially elliptical shape that is distorted to provide rotational resistance between the threaded fastener and the internally-threaded collar; and (c) rotating the threaded fastener relative to the internally-threaded collar and the surface to engage a portion of the inner wall defType: GrantFiled: April 17, 2002Date of Patent: March 30, 2004Inventor: Hal W. Pulfer
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Patent number: 5676510Abstract: An anchor plate (1A) has threaded sleeves (2) for mounting equipment to a sheet metal structure (5). The plate and metal structure (5) are configured to conform to one another on assembly for structure reinforcement. An elastic tongue (10, 16) integral with the plate (1A) carries a rivet (9) which contacts the structure (5) during assembly and the two in predetermined orientation during welding of the rivet (9) to the structure.Type: GrantFiled: October 13, 1995Date of Patent: October 14, 1997Inventors: John D. Fischer, Pierino Garnero
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Patent number: 5499893Abstract: A low profile lock nut for receiving a threaded bolt therein including a body portion having a threaded axial bore extending therethrough with first and second opposite ends, a crown member for providing a predetermined degree of flexibility, at least in a radial direction, to at least one of the first and second ends of the body portion and an engagement member on at least one portion of the bore positioned a predetermined distance from each of the first and second ends respectively for engaging the threads of the bolt without distorting the bolt threads and for cooperating with the crown member to provide a desired installation torque as well as a desired removal torque.Type: GrantFiled: December 29, 1993Date of Patent: March 19, 1996Assignee: Illinois Tool Works Inc.Inventors: Raymond L. Thurston, Steven H. Schulenburg
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Patent number: 5348432Abstract: In order to prevent a flange of a tee nut which is moved along a feed track from overlapping with that of another tee nut so that the tee nut can be smoothly fed along the feed track, the flange is an octagon having linear sides coupling paired the two pawls of each of two pairs of pawls with each other. To firmly and semi-permanently fix the tee nut in an object, a relatively thin-walled flarable or splayable portion is formed on an end of a shaft away from the flange. A female screw forming portion is provided on a portion of the shaft excluding the flarable or splayable portion. When this tee unit is mounted on the object, the pawls bite into the object and the flarable or splayable portion is flared or splayed to form a flared or splayed rim.Type: GrantFiled: September 24, 1993Date of Patent: September 20, 1994Assignee: Nagayama Electronic Industry Co., Ltd.Inventor: Yutaka Nagayama
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Patent number: 5302067Abstract: A prevailing torque fastener has a portion of the internal thread deformed from a circular cross-section to an approximately elliptical cross-section by a pair of die impressions on diametrically opposed sides of the exterior of the body. Each die impression is skewed from a plane normal to the axis of the fastener at an angle corresponding to the lead of the thread. Each die impression is made with a jaw having a central circular arc with a radius greater than the radius of the undeformed fastener. The opening between the jaws has a perimeter equal to the circumference of the undeformed fastener. Each edge of the die impression is at a predetermined elevation relative to the thread profile, preferably aligned with the crest of the thread. The location of the die impression is controlled by threading the fastener against a stop and crimping the fastener between jaws spaced a known distance from the stop.Type: GrantFiled: March 5, 1993Date of Patent: April 12, 1994Inventor: Jack Rath
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Patent number: 5143499Abstract: A temperature-sensitive, deformable cylinder locknut for use in high temperature applications associated with the operation of a gas turbine engine provides a secure fastener lock which resists torsional and vibrational stresses which may otherwise act to unseat and disengage the bolt. The locknut includes an undeformed threaded portion, an unthreaded transitional cylindrical sleeve portion, and a deformable unthreaded cylindrical portion. A threaded shaft contacts the cylindrical sleeve with reduced surface engagement to minimize frictional interaction and define a spiral volume therebetween to ensure the establishment of a non-permanent lock.Type: GrantFiled: April 22, 1991Date of Patent: September 1, 1992Assignee: General Electric CompanyInventors: Melvin Bobo, Peter W. Mueller, Thomas F. McClure
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Patent number: 5033924Abstract: An improved lock nut of the kind having a deformable section at one end, with a generally elliptical cross-section. The deformable section has a maximum radial thickness in the region of the ellipse's minor axis, to provide a desired degree of frictional locking when threaded onto a bolt, and it has a minimum radial thickness in the region of the ellipse's major axis, to reduce stresses and plastic deformation that could otherwise adversely affect the lock nut's reusability.Type: GrantFiled: December 12, 1989Date of Patent: July 23, 1991Assignee: VSI CorporationInventor: Frank J. Cosenza
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Patent number: 4890965Abstract: A lock nut has locking members with internal thread segments formed between slots, the segment ends being relieved to prevent galling; also, the members are deformed so that thread segments therein extend along generally circular arcs that have axes offset from the nut axis. Typically, the axes associated with the arcs on said members are at the respective sides of the body axis opposite from said respective members.Type: GrantFiled: January 30, 1989Date of Patent: January 2, 1990Inventor: Robert W. Dietlein
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Patent number: 4796581Abstract: The governor includes a torque-control capsule actuated by a governor member that adjusts in accordance with rpm and disposed in a force-transmitting member subject to the force of a governor spring, by means of which torque-control capsule both the onset and control stroke (b) of torque control are adjustable or settable in an infinitely graduated manner without affecting one another. The torque-control capsule has a stop bolt inserted in a stepped longitudinal bore of a stop housing, a torque-control spring and an adjusting screw, which forms an abutment for the torque-control spring. The adjusting screw is adjustable in an infinitely graduated manner and is secured in a positionally fixed manner inside the stop housing in the vicinity of an internal thread.Type: GrantFiled: February 29, 1984Date of Patent: January 10, 1989Assignee: Robert Bosch GmbHInventor: Werner Bruhmann
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Patent number: 4790703Abstract: A tri-lobular section of a bolt receives a mating tri-lobular bore of a washer to prevent the washer from rotating. Roll formed male threads on the tri-lobular section of the bolt receive a cooperating nut. The nut has a base shaped for wrench engagement, a thin walled barrel, a spring temper, and a threaded bore. The thread of the nut has two thread diameters: a large diameter thread in the base and a smaller diameter thread in the barrel continuing from the base thread; both thread sections have the same pitch. The barrel thread is substantially circular when relaxed. The barrel elastically flexes in response to the lobes of the nut as the lobes turn in the barrel, and when rotation stops, the barrel generally conforms to the tri-lobular shape of the bolt to form a thread lock, but the base does not.Type: GrantFiled: April 24, 1987Date of Patent: December 13, 1988Inventor: George S. Wing
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Patent number: 4699552Abstract: A three piece blind fastener of the kind comprising a tubular nut having a head at one end and a tapered nose at the other end, an expansible sleeve, and a headed bolt threadedly engaged with the nut for forcing the sleeve on to the nose of the nut to form a blind head, has the thread of the nut provided with a locking zone in which the bore of the nut is constricted and, in cross sectional shape, a closed non-reentrant non-circular curve so that the nut resiliently interferes with the bolt.A die, and a method of providing the nut with the locking zone by means of the die are disclosed. The die has a tapered aperture having a cross sectional shape corresponding to the desired shape of the locking zone, and the method involves forcing the tapered nose of the nut into the aperture so as to constrict the bore, in a zone spaced from its ends, to the desired extent and impose the non-circular cross sectional shape on the constricted zone.Type: GrantFiled: January 28, 1986Date of Patent: October 13, 1987Assignee: Advel LimitedInventor: Harvey P. Jeal
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Patent number: 4381163Abstract: A prevailing torque type self-locking nut has an internal aperture provided with wedge ramp type threads, the aperture being tapered in cross section adjacent the top of the nut.Type: GrantFiled: October 6, 1980Date of Patent: April 26, 1983Assignee: Microdot Inc.Inventors: Erwin C. Witte, William D. Myers
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Patent number: 4291737Abstract: A tri-lobular, all metal, prevailing torque nut is disclosed providing a cone having three locking sections, each of which extends around the threaded opening for about one-third of the surface of its thread. Each locking section provides a minimum radial distance at its center and extends with gradually increasing radial distance to the ends thereof. When the nut is threaded onto a mating threaded fastener, portions of each locking section are radially displaced from their unstressed condition to the circular shape of the mating fastener, producing frictional engagement between the nut and the fastener to resist unintentional loosening. Each locking section is arranged so that it provides a maximum resistance to deflection at its center and decreasing resistance to deflection at locations progressively spaced from the center so that excessive pressures are not developed which would tend to produce excessive wear or permanent deformation.Type: GrantFiled: March 5, 1979Date of Patent: September 29, 1981Assignee: Russell, Burdsall and Ward CorporationInventors: John C. McMurray, Arthur G. Kudelko