GB2124317A - Blind rivet assembly - Google Patents

Blind rivet assembly Download PDF

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Publication number
GB2124317A
GB2124317A GB08318291A GB8318291A GB2124317A GB 2124317 A GB2124317 A GB 2124317A GB 08318291 A GB08318291 A GB 08318291A GB 8318291 A GB8318291 A GB 8318291A GB 2124317 A GB2124317 A GB 2124317A
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GB
United Kingdom
Prior art keywords
shank
rivet
locking pin
neck
flared
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08318291A
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GB2124317B (en
GB8318291D0 (en
Inventor
George Siebol
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Individual
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Individual
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Publication of GB8318291D0 publication Critical patent/GB8318291D0/en
Publication of GB2124317A publication Critical patent/GB2124317A/en
Application granted granted Critical
Publication of GB2124317B publication Critical patent/GB2124317B/en
Expired legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B19/00Bolts without screw-thread; Pins, including deformable elements; Rivets
    • F16B19/04Rivets; Spigots or the like fastened by riveting
    • F16B19/08Hollow rivets; Multi-part rivets
    • F16B19/10Hollow rivets; Multi-part rivets fastened by expanding mechanically
    • F16B19/1027Multi-part rivets
    • F16B19/1036Blind rivets
    • F16B19/1045Blind rivets fastened by a pull - mandrel or the like
    • F16B19/1054Blind rivets fastened by a pull - mandrel or the like the pull-mandrel or the like being frangible

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)

Abstract

A tubular blind rivet assembly 10 oomprises a rivet 12 having a head 24 and a shank 26, and a locking pin 14. The locking pin has a flared collar 42 which may be separate (figs. 8 to 12) with an annular ridge 46 for clamping workpieces 16, 18 together and for initially expanding the blind end of the shank, and then expanding the shank 26, so that it fills the opening 20, 22, through the workpieces 16, 18. A number of spaced apart locking rings 80 are provided on the locking pin 14 to finally expand the blind end of the shank 26 and lock the rivet in position. The number of spaced apart locking rings 80 enables the rivet assembly 10 to be used with workpieces of different thicknesses. <IMAGE>

Description

SPECIFICATION Blind rivet assembly This invention relates to rivets. In particular it relates to blind rivets which can be installed and fastened to a workpiece when access can be gained to only one side of the workpiece.
It is well known in the art to provide rivets which can be installed in a workpiece from the front side of the workpiece, even though the installer has no access to the back or blind side.
Various types of such rivets have been designed to operate in a variety of ways. One advanced design is described in my earlier United States of America Patent Specification No US-A- 3 073 205. This describes a rivet assembly consisting of a tubular rivet and a locking pin. The locking pin is inserted through the shank end of the rivet and extends outwards through the head.
The outwardly extending end is adapted to be gripped with a pulling device, while the other end of the locking pin is enlarged slightly larger than the inside diameter of the tubular rivet. The assembly is positioned through a hole in a workpiece or workpieces, so that the head is on the outside and the other end extends beyond the blind side of the workpiece. When the outwardly extending end of the locking pin is pulled by a pulling device, it forces the enlarged portion on the blind side of the locking pin to wedge inside the tubular shank of the rivet, thus expanding the rivet on the blind side of the workpiece. When the blind end of the rivet has been expanded to a size larger than the hole in the workpiece, the rivet is then fixed permanently in position.
While this prior rivet assembly has numerous advantages over many other prior devices, it has been found that it is highly desirable to provide a rivet assembly wherein locking pins and rivets of higher shear strengths can successfully be used.
Since increasing the shear strength generally requires a reduction of ductility, practical limits exist for setting high target shear strengths, due to the necessity for using materials with sufficient ductility to enable the locking pin to be drawn tightly within the inside of the tubular shank of the rivet. It is also desirable to provide a rivet assembly which is suitable for use with a wider variety of thicknesses of workpieces, i.e. an assembly that will lock the rivet tightly to thin or thick workpieces.
According to this invention a blind rivet assembly comprises an elongate rivet having a head and a shank having a common axial bore, the head being larger than the opening in the workpiece and a shank being arranged for axial insertion through the opening so that when the head is engaged with the one side face of the workpiece, the end of the shank remote from the head protrudes through the opening beyond the other side face of the workpiece; and, An elongate locking pin means having an elongate pulling section at one end, a generally cylindrical body at the other end, and an elongate neck between them, a weakened portion being provided at the join between the neck and the body so that when the locking pin means is subjected to excessive axial tension it fractures at this weakened portion, the body having a plurality of integrally formed locking rings extending around the circumference of the body and lying in a plane transverse to its axis, and a hollow, flared portion located on the body adjacent its join with the neck tapering axially away from the body so that its smallest diameter end surrounds a portion of the neck adjacent its join with the body, a clearance being provided between the flared portion and the neck, the pulling section and the neck being arranged to fit through the bore in the rivet with the pulling section extending out of the bore through the rivet head whilst the body of the pin extends beyond the bore opening on the other end of the shank.
The locking means may be Formed integrally or, alternatively may comprise a separate flared collar and locking pin, the connecting portion of the locking pin having a circumferential groove at its end connected to the cylindrical body, the groove providing the clearance and forming a radial shoulder on the end of the cylindrical body, the flared collar having an inside diameter larger than the outside diameter of the elongate neck and the connecting portion, and smaller than the diameter of the cylindrical body at its shoulder so that the other end of the flared collar abuts the shoulder when the pin is inserted into the collar.
Preferably the plurality of locking rings are spaced between the neck joint and the other end of the body and the locking pin means further include a plurality of circumferential grooves around the body, one groove adjacent the other side of each locking ring, each of the locking rings having an outside diameter greater than the diameter of the bore of the shank. In this case each locking ring is sufficiently deformable that when the locking pin means is drawn into the shank, the ring is progressively drawn and compressed to a size to fit within the shank, the displaced material of each ring being compressed into its adjacent groove.
Two examples of a blind rivet in accordance with this invention will now be described with reference to the accompanying drawings; in which: Figure 1 is a perspective view of a first example of rivet assembly; Figure 2 is a partial fragmentary cross section of the rivet assembly and pulling device with the assembly inserted in openings in a pair of workpieces to be fastened together; Figure 3 is similar to Figure 2 except that the locking pin of the rivet assembly has been pulled partially into the tubular shank of the rivet; Figure 4 is similar to Figure 3, except the locking pin has been pulled still further into the shank of the rivet; Figure 5 is similar to Figure 4, except that the locking pin has been pulled completely inside the shank, and the flared portion on the locking pin has been deformed and flared outwardly to engage the rivet head;; Figure 6 shows the rivet after the riveting operation has been completed, and the cylindrical neck of the locking pin has been broken away from the body; Figure 7 is a view similar to Figure 6, except that the rivet is shown installed in thinner workpieces; Figure 8 is an exploded perspective view of part of the locking pin means of a second example; Figure 9 is similar to Figure 2 but of the second example; and, Figures 10 to 12 are similar to Figures 4 to 6, but show the second example.
Figure 1 shows a rivet assembly 10 consisting of a blind rivet 12 and a locking pin 14. Figures 2 to 6 show the sequential steps of using the rivet assembly 10 to rivet together a front workpiece 16 and a rear workpiece 1 8. Typically, the workpieces consist of a pair of metal sheets of aluminium or steel.
Aligned, circular apertures 20 and 22 are provided in the sheets. The apertures are sufficiently large to admit all of the rivet assembly, except a head 24 of the rivet. Preferably the outside diameter of a tubular shank 26 of the rivet 12 is just slightly smaller than the apertures 20 and 24, so that the rivet fits easily within the apertures and yet expands completely and snugly to fill the apertures when the riveting process is complete.
The locking pin 14 includes a pulling section 30 which is provided with a series of lands 32 and grooves 34, as shown in Figure 1. The pulling section 30 is integrally connected to a cylindrical neck 36, which is sized to fit within a bore 38 of the tubular shank 26. The cylindrical neck is, in turn, integrally connected to a body 40 of the locking pin 14. The body 40 like the cylindrical neck is generally a solid metallic cylinder; however, the diameter along most of the portion of the body may be varied, and it initially is slightly larger than the inside diameter of the bore 38. It is wire drawn to a smaller diameter as it is pulled inside the bore 38, simultaneously producing a desired interference fit between the tubular shank 26 and the walls of apertures 20 and 24 by expanding the walls of the shank radially outwards.The body is also equipped with a flared skirt 42, which expands from a tubular tip 44 to an annular ridge 46, and which joins the body adjacent a join between the cylindrical neck 36 and the body 40. An annular clearance remains between the inside of the flared skirt 42 and the neck 36.
The tubular shank 25 of the rivet is equipped with an expandable point 50 at its blind end. The expandable point is also provided with a counterbore 52 on the inside of the point. The counterbore is sized to permit entry of the tip of the flared skirt, as shown in Figures 2 and 3.
To install a rivet in the workpieces, the rivet assembly is positioned in the apertures 20 and 22 of the workpieces, as shown in Figure 2. A riveting tool 60 having a collet or gripping means 62 engages the lands 32 and grooves 34 of pulling section 30 of the locking pin 14, while a pressure foot 64 urges a die 66 against a front surface 68 of the rivet. The collet or gripping means 62 thus pulling the locking pin inwards through the bore 38 in the tubular shank 26 of the rivet, while the head of the rivet is held securely against a surface 70 of the front workpiece 1 6.
As the locking pin is drawn into the side of the bore 28, as shown in Figures 2 and 3, the flared skirt 42 is drawn and compressed into the expandable point 50 of the tubular shank 26.
Since the flared skirt tapers from a relatively narrow tip 44 to an enlarged annular ridge 46, it rolls the walls of the tubular shank radially outwardly compressing the two workpieces 1 6 and 1 8 to close the gap 72 (exaggerated in Figure 2) and compress the two workpieces together (as shown in Figure 3), while simultaneously locking them together by creating the expanded hip 74 on the tubular shank.
Compression of the flared skirt 42 closes it against the neck of the locking pin 14. The clearance between the flared skirt 42 and the neck 26 is approximately equal in volume to the quantity of metal from the flared skirt 42 that is displaced when the skirt is drawn into the shank 16.
The annular ridge 46 is slightly larger than the diameter of body 40 so that in the initial stage of drawing the pin inside the shank, shown in Figure 3, an annular space 75 is provided between the shank and the body of the locking pin. Thus, the only frictional drag exerted against drawing the pin is that exerted between the tapering outer surface of the flared skirt and the inner wall of the shank.
As the riveting tooi 60 draws the locking pin 14 further through the rivet, as shown in Figure 4, the annular ridge of the flared skirt is compressed as the skirt is straightened out, and the skirt and body 40 of the locking pin expand the walls of the tubular shank against the walls of the apertures 20 and 22, thus rigidly fixing the rivet in position.
The body of the locking pin is also provided with a series of ductile locking rings 80 separated by grooves or channels 82. The volume of metal in each locking ring extending radially outwardly from the body of the locking pin corresponds to the volume of the adjacent channel or groove inward of the ring. Thus, as the locking pin is drawn still further into the tubular shank, as shown in Figure 5 and Figure 6, the ductile locking rings are deformed and compressed into the channels behind them. Simultaneously with the deformation of each locking ring, the radius of the hip 74 of the tubular shank 26 is reduced and the hip is compressed more tightly against the blind side surface 84 of the rear workpiece 1 8. This increases the tensile strength of the fixing in thin workpieces to levels comparable to thicker workpieces.
Figure 5 also shows the initiation of compression of the skirt 42 as it is compressed against the die 66. The head 24 of the rivet 12 is provided with an internal annular recess or counterbore 86 whose volume approximately equals the volume of metal in the flared skirt 42.
Thus, when the skirt is fully compressed as shown in Figure 6, it essentially completely fills the void space in annular recess 86. At the same position at which the skirt is completely compressed linearly and fully expanded radially into the recess, the blind end 90 with terminal ring 92 is wedged into the expandable point 50 of the tubular shank until it engages or wedges beyond the inner shoulder 94 of the counterbore 52. Axial movement of the pin relative to the rivet is thus blocked.Thereafter, as the riveting tool 60 attempts to pull the locking pin still further into the tubular shank, and further movement is blocked by the abutment of the die 66 against the skirt 42, the pulling section and cylindrical neck of the locking pin are broken off from the body 40 at a weakened portion or breakneck groove 96, which is located at the base of the flared skirt and the join between the cylindrical neck and body of the locking pin. The breakneck groove 96 consists of a groove around the circumference of the locking pin to ensure that fracture of the pin occurs in a relatively uniform plane at a defined location, so that the surface 98 of the ruptured portion is relatively smooth, and below the rivet head, as shown in Figure 6.
After the neck is severed from the body, the riveting tool and the neck are removed, leaving the finished rivet head exposed on the front side of the workpiece.
Figure 7 shows a riveted pair of substantially thinner workpieces than those shown in Figures 2 to 6. As can be seen, the installed rivet is capable of providing the same type of bonding as is provided with thicker workpieces. This is achieved due to the plurality of ductile locking rings 80a and 80b and adjacent channels 82 spaced along a substantial length of the blind end of the locking pin. As seen in Figure 7, only the first locking ring 80a is deformed substantially by entry into the portion of the tubular shank that is within the aperture of the inner workpiece. The use of the same rivet assembly on thicker workpieces will provide equally satisfactory results up to the point where the last locking ring 80b is adjacent the shoulder 74.Thus, the rivet assembly provides a substantial degree of flexibility for use with different thicknesses of workpieces and more flexibility than has been previously achieved.
Although the embodiments in the drawings show only two locking rings three or even more such rings may be included for maximum flexibility of use of the devices.
In a second example of the invention the locking pin 14 is replaced by a two-component locking pin assembly 14a, as shown in Figures 8 to 12. The locking pin assembly 1 4a includes a flared collar or sleeve 42a which corresponds generally in function with the flared skirt 42, as shown in Figure 1 to 7. The flared collar or sleeve 42a is adapted to compatibly fit about cylindrical neck 36a, when the two-component locking pin assembly 1 4a is assembled for use to clamp workpieces 1 6 and 1 8 together, as shown in Figures 9 to 12.
The flared collar 42a includes a tubular tip 44a and the collar terminates at an annular ridge 46a.
When the collar 42a is assembled about the cylindrical neck 36a, it rests upon shoulder 100 of the body 40a of the locking pin assembly. A weakened zone or breakneck groove 96a is formed in cylindrical neck 36a just adjacent annular ring 104 which has a reduced diameter similar to that of cylindrical neck 36a. The annular ring 104 and the shoulder 100 are separated by cavity 102 formed at the junction of the cylindrical neck 36a with the body 40a.
When the collar 42a is installed over the cylindrical neck 36a and rests on shoulder 100, a close fit is provided, as shown in Figure 9. When the locking pin assembly is drawn upwardly through the rivet 12, as shown in Figures 10, 11 and 12, the flared collar 42a is progressively compressed linearly and expanded outwardly, while the annular ridge 46a is compressed inwardly into the cavity or groove 102. The volume of metal displaced approximately equating with the volume of the groove 102. Thus, the annular ridge, after being compressed into cavity 102, effectively locks the flared collar 42a to the locking pin, whilst the flaring of the tubular tip 44a locks the collar to the rivet by expanding into and filling the countersink 86. When the locking pin is fully drawn into and locking to the rivet, as shown in Figure 12, further drawing on the cylindrical neck 36a severs it at the breakneck groove 96a, thus leaving a surface 98a across the locking pin conforming approximately to the upper surface of the rivet.

Claims (12)

1. A rivet assembly for fastening through an opening in a workpiece from the one side without access to the other side comprising: an elongate rivet having a head and a shank having a common axial bore, the head being larger than the opening in the workpiece and a shank being arranged for axial insertion through the opening so that when the head is engaged with the one side face of the workpiece, the end of the shank remote from the head protrudes through the opening beyond the other side face of the workpiece; and, an elongate locking pin means having an elongate pulling section at one end, a generally cylindrical body at the other end, and an elongate neck between them, a weakened portion being provided at the join between the neck and the body so that when the locking pin means is subjected to excessive axial tension it fractures at this weakened portion, the body having a plurality of integrally formed locking rings extending around the circumference of the body and lying in a plane transverse to its axis, and a hollow, flared portion located on the body adjacent its join with the neck tapering axially away from the body so that its smallest diameter end surrounds a portion of the neck adjacent its joint with the body, a clearance being provided between the flared portion and the neck, the pulling section and the neck being arranged to fit through the bore in the rivet with the pulling section extending out of the bore through the rivet head whilst the body of the pin extends beyond the bore opening on the other end of the shank.
2. A rivet assembly according to claim 1, in which the locking pin means is formed integrally.
3. A rivet assembly according to claim 1, in which the locking pin means comprises a separate flared collar and locking pin, the connecting portion of the locking pin having a circumferential groove at its end connected to the cylindrical body, the groove providing the clearance and forming a radial shoulder on the end of the cylindrical body, the flared collar having an inside diameter larger than the outside diameter of the elongate neck and the connecting portion and smaller than the diameter of the cylindrical body at its shoulder so that the other end of the flared collar abuts the shoulder when the pin is inserted into the collar.
4. A rivet assembly according to any one of the preceding claims, in which the smaller end of the flared portion is substantially circular in cross section and has an outside diameter no greater than the diameter of the bore at the other end of the shank, and the base of the flared portion comprises an annular ridge whose diameter is greater than the diameter of the bore at the other end of the shank.
5. A rivet assembly according to claim 4, in which the ridge and the tubular shank are sufficiently deformable that when the locking pin means is drawn into the shank by pulling the pulling section axially, the other end of the shank is progressively rolled and flared radially outwards to a size larger than the opening in the workpiece so that the workpiece is clamped between the rivet head and the flared shank, and at the same time the ridge on the flared portion is progressively compressed and drawn to a size sufficiently small to fit within the shank.
6. A rivet assembly according to any one of the preceding claims, in which the volume of the clearance between the neck and the flared portion is approximately equal to the volume of material in the flared portion which is displaced when the locking pin means is drawn into the shank.
7. A rivet assembly according to any one of the preceding claims, in which a front portion of the rivet head is provided with a counterbore about the bore, the counterbore having a volume sufficient to contain the volume of material in the flared portion which extends radially outwardly of the diameter of the bore when the skirt is flared outwards and compressed axially sufficient to form a circumferential rim about the join between the neck and body of the locking pin means.
8. A rivet assembly according to any one of the preceding claims, in which the body includes an enlarged other end portion to engage the tubular shank and resist further axial movement of the body towards the rivet head when the join between the neck and body is positioned within the head.
9. A rivet assembly according to any one of the preceding claims, in which the plurality of locking rings are spaced between the neck joint and the other end of the body and the locking pin means further include a plurality of circumferential grooves around the body, one groove adjacent the other side of each locking ring, each of the locking rings having an outside diameter greater than the diameter of the bore of the shank.
10. A rivet assembly according to claim 9, in which the outside diameter of each locking ring is less than the original diameter of the annular ridge of the flared portion before it is compressed and deformed.
11. A rivet assembly according to claim 9 or 10, in which each locking ring is sufficiently deformable that when the locking pin means is drawn into the shank, the ring is progressively drawn and compressed to a size to fit within the shank, the displaced material of each ring being compressed into its adjacent groove.
12. A rivet assembly constructed substantially as described with reference to the accompanying drawings.
GB08318291A 1982-07-16 1983-07-06 Blind rivet assembly Expired GB2124317B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39897982A 1982-07-16 1982-07-16

Publications (3)

Publication Number Publication Date
GB8318291D0 GB8318291D0 (en) 1983-08-10
GB2124317A true GB2124317A (en) 1984-02-15
GB2124317B GB2124317B (en) 1985-08-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB08318291A Expired GB2124317B (en) 1982-07-16 1983-07-06 Blind rivet assembly

Country Status (5)

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JP (1) JPS5962712A (en)
DE (1) DE3325618A1 (en)
FR (1) FR2530305B1 (en)
GB (1) GB2124317B (en)
IT (1) IT1172302B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159595A (en) * 1984-05-30 1985-12-04 George Siebol Blind rivets
US4897004A (en) * 1986-06-26 1990-01-30 Textron, Inc. Blind fastener with self-locking collar
GB2227538A (en) * 1988-10-20 1990-08-01 Avdel Systems Ltd Swageable tubular member
FR2682726A1 (en) * 1991-10-21 1993-04-23 Garonne Ets Auriol & Cie Member for blind riveting and method for manufacturing a chuck for such a member

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681494A (en) * 1985-10-04 1987-07-21 Monogram Industries, Inc. Drive nut blend fastener with cap nut
US4747204A (en) * 1985-10-04 1988-05-31 Monogram Industries, Inc. Method of installing drive nut blind fasteners with cap nuts
DE3619826A1 (en) * 1986-06-12 1987-12-17 Hirschmann Radiotechnik Rivet connection
CN105666120A (en) * 2014-11-17 2016-06-15 昌河飞机工业(集团)有限责任公司 Blind rivet installation method
CN105545909A (en) * 2016-02-18 2016-05-04 航天精工股份有限公司 Core bar self-locking type blind rivet
CN112610582B (en) * 2020-12-25 2023-01-24 航天精工股份有限公司 Novel high locking self-plugging rivet

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1490508A (en) * 1975-06-19 1977-11-02 Textron Inc Blind rivet assembly
GB1495592A (en) * 1974-01-18 1977-12-21 Raymond A Securing members
GB1518084A (en) * 1974-08-16 1978-07-19 Avdel Ltd Rivet
GB1522557A (en) * 1975-08-21 1978-08-23 Monogram Ind Inc Multiple sleeve blind fastener
GB1538872A (en) * 1975-04-01 1979-01-24 Avdel Ltd Blind rivet
GB1552235A (en) * 1976-06-11 1979-09-12 United Carr Ltd Rivet
GB2054785A (en) * 1979-07-23 1981-02-18 Itw Espana Sa Blind rivets

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Publication number Priority date Publication date Assignee Title
US3073205A (en) * 1958-12-16 1963-01-15 Olympic Screw & Rivet Corp Blind rivet assembly having mandrel with a deformable skirt portion
US4143580A (en) * 1976-12-20 1979-03-13 Allfast, Inc. Lock spindle blind rivet
GB1604727A (en) * 1977-07-19 1981-12-16 Huck Mfg Co Blind fasteners

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1495592A (en) * 1974-01-18 1977-12-21 Raymond A Securing members
GB1518084A (en) * 1974-08-16 1978-07-19 Avdel Ltd Rivet
GB1538872A (en) * 1975-04-01 1979-01-24 Avdel Ltd Blind rivet
GB1490508A (en) * 1975-06-19 1977-11-02 Textron Inc Blind rivet assembly
GB1522557A (en) * 1975-08-21 1978-08-23 Monogram Ind Inc Multiple sleeve blind fastener
GB1552235A (en) * 1976-06-11 1979-09-12 United Carr Ltd Rivet
GB2054785A (en) * 1979-07-23 1981-02-18 Itw Espana Sa Blind rivets

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159595A (en) * 1984-05-30 1985-12-04 George Siebol Blind rivets
FR2565303A1 (en) * 1984-05-30 1985-12-06 Siebol George RIVET COMPOUND TO BE BLINDED WITH AUTOMATICALLY ADJUSTING CRIMPING ANKLE
US4897004A (en) * 1986-06-26 1990-01-30 Textron, Inc. Blind fastener with self-locking collar
GB2227538A (en) * 1988-10-20 1990-08-01 Avdel Systems Ltd Swageable tubular member
FR2682726A1 (en) * 1991-10-21 1993-04-23 Garonne Ets Auriol & Cie Member for blind riveting and method for manufacturing a chuck for such a member

Also Published As

Publication number Publication date
DE3325618A1 (en) 1984-01-19
IT8348699A0 (en) 1983-07-15
JPS5962712A (en) 1984-04-10
FR2530305A1 (en) 1984-01-20
IT1172302B (en) 1987-06-18
GB2124317B (en) 1985-08-14
FR2530305B1 (en) 1989-01-13
GB8318291D0 (en) 1983-08-10

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920706