Wire Patents (Class 59/83)
  • Patent number: 8763357
    Abstract: An interchangeable and customizable jewelry and accessory system using individual beaded links 1 to allow the user to create jewelry, fashion & home accessories quickly and easily without prior jewelry making experience. Each design can easily be changed to create a new design without affecting the quality and structure of the main components. Using this method, individual beaded links 1 can be detached and re-attached at any point within the design to create an entirely different design at any time. Individual beaded links 1 and connector links 3 as well as any clasp, finding or embellishment 2 can be used and re-used over and over without damaging any component of the design providing for a truly interchangeable jewelry and accessory system.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: July 1, 2014
    Inventor: Cheska Arnone
  • Patent number: 8740196
    Abstract: A linkage comprises a first rounded end providing a complimentary profile configured to mate with an inner radius of a loop element in a first drawbar spring, and a second rounded end opposite the first rounded end. The second rounded end provides a complimentary profile configured to mate with an inner radius of a loop element in a second drawbar spring. The linkage is configured to be positioned between the loop element in the first drawbar spring and the loop element in the second drawbar spring such that the first rounded end is mated with the loop element in the first drawbar spring and the second rounded end is mated with the loop element in the second drawbar spring to mechanically couple the first drawbar spring in series with the second drawbar spring.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: June 3, 2014
    Inventor: Jay Rodger Elrod
  • Patent number: 8701439
    Abstract: Jewel having a decorative element such as a precious stone, a bezel including a body provided with at least one hole defining a longitudinal direction, the body having claws mounted thereon, which embed the decorative element, a wire-like support on which the bezel is mounted, the wire-like support extending longitudinally through the body of the bezel through the hole. The wire-like support has a bore located in the body, and the jewel further has an elongated stop element, which extends transversely in the body while passing through the bore formed in the wire-like support. The stop element is engaged with stop surfaces formed within the body.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: April 22, 2014
    Assignee: Etesi
    Inventor: Arthur Sieradzki
  • Patent number: 8689534
    Abstract: A rope structure comprises a plurality of link structures each defining first and second ends. Each link structure is formed of synthetic fibers. Each first end comprises at least first and second bend portions. Each second end comprises at least third and fourth bend portions. The first end of a first one of the plurality of link structures engages the second end of a second one of the plurality of link structures such that the first and second bend portions of the first end of the first one of the plurality of link structures are substantially parallel to each other and substantially perpendicular to the third and fourth bend portions of the second end of the second one of the plurality of link structures.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: April 8, 2014
    Assignee: Samson Rope Technologies
    Inventor: Chia-Te Chou
  • Patent number: 8418434
    Abstract: A fashion accessory featuring a plurality of units connected together to form a continuous chain having a first end and a second end. The first end and second end are connected together via a locking means. Each unit is a loop. The units each occupy a folded configuration. In the folded configuration, the unit is folded in half to form a first top arc and a second top arc that are positioned next to each other, and a first bottom hook and a second bottom hook that are positioned across from each other. Adjacent units are fed through both bottom hooks and subsequently moved to occupy the folded configuration.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: April 16, 2013
    Inventors: Jack Carruth, Danielle Carruth
  • Patent number: 8181960
    Abstract: An assembly comprising three or more elements; each element comprises a shape with an opening completely through the element; and each element comprises a plurality of edges, the edges being joined together at angular junctions. Each element links all of the other elements, and each element links the other elements in the same way. The link is formed by a portion of the shape passing through the openings in the other elements, so that the elements form a nested structure, and the elements are interchangeable in the nested structure without altering the nested configuration of the assembly.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: May 22, 2012
    Inventor: Nils Folke Anderson
  • Patent number: 7461501
    Abstract: An assembly comprising a plurality of linked members configured to inter-operate with a cord member. The plurality of link members are interconnected such that the body of one link member passes through the inner surface defining a void of the other link member. In this way, each link member is connected to its adjacent neighbor. A load-bearing flexible cord member is configured to interoperate with the plurality of link members in such a way that a portion of the cord member passes through the inner surface defining a void of a least one of the link members. This provides an improved attachment method over existing chains, and individual cords.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: December 9, 2008
    Inventor: Curtis B. Bajema
  • Patent number: 7392666
    Abstract: An accessory in the form of a metal-wire meshed tube body having a dual structure is provided wherein a metal-wire meshed tube body with fine mesh density is incorporated inside a metal-wire meshed tube body with coarse mesh density. The accessory is provided in the form of a combination of a couple of meshed tube bodies formed by weaving metal wire to have respective different mesh density, wherein a dual-structure meshed tube body 3 is composed of a metal meshed tube body 1 with coarse mesh density positioned outwardly and a metal meshed tube body 2 with fine mesh density positioned inwardly.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: July 1, 2008
    Assignee: Namiki Co., Ltd.
    Inventor: Hiromasa Namiki
  • Patent number: 7146793
    Abstract: A watch chain is disclosed.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: December 12, 2006
    Assignee: Ecco Watch Co., Ltd.
    Inventor: Min Kyung Hyun
  • Patent number: 7137239
    Abstract: A cast prickle chain link element, and a prickle chain made by interconnecting a plurality of these links. Each link element includes a body, the body having at least one hole, and at least one hook formed into it, and at least one ground engaging finger projecting outwardly from the body. The hook formed into the body of one element, is adapted to engage the hole formed into the body of another identical element, thereby facilitating the linking of elements in order to form a prickle chain.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: November 21, 2006
    Inventor: Kentyn Scott Paterson
  • Patent number: 6908065
    Abstract: A method for weaving beads together in order to form a textured chamber comprised of woven strings of beads and products generated thereby is shown. A plurality of bead strings, referred to herein as chains, are used which are comprised of beads connected by strings. Each bead has spacing corresponding to and functionally working with the spacing of the joining strands of string. There is near identity as far as bead spacing and bead size in the preferred embodiment between the multiple hanging chains and the single locking chain of beads. Two to three beads of each hanging chain are skipped, while preferably each bead after one or more initial strands of the locking chain are used in order to form a structure which has flexibility but strong contact. When multiple (three or more) separate chains are inter-woven with appropriate spacing, then the resulting structure is expanded outward to form a tube. This tube can be maintained by proper spacing and by locking the beads at either end.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: June 21, 2005
    Inventor: Gregory Ritchie
  • Patent number: 6826900
    Abstract: A non-annular, hollow chain link is provided with a gap and is capable of being intertwined to form a jewelry rope chain. The gap faces the widest dimension of the link, and faceting surfaces are preferably disposed adjacent the gap. When compared with an annular, prior art link having a diameter that is equivalent to the widest dimension of the non-annular link, the faceting surfaces present a greater faceting surface area than the faceting surfaces of such annular, prior art link. Thus, a faceted rope chain formed from such hollow, non-annular chain links will have a greater faceting presence and appearance than an equivalent rope chain formed from annular chain links.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: December 7, 2004
    Inventors: David Rosenwasser, Avi Rosenwasser
  • Patent number: 6807800
    Abstract: A jewelry rope chain having links interwoven together to form a double helix configuration. Each link has a cross section with the largest transverse distance across the cross section defining a first dimension. Each link has a interior space and a gap along the periphery of the length. The widest dimension of the interior space in a direction consistent with the direction of the gap has a dimension which is less than three times the first dimension. Thus, ratios of approximately 2:1 can be achieved.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: October 26, 2004
    Inventors: David Rosenwasser, Avi Rosenwasser
  • Patent number: 6644008
    Abstract: A chain link of hollow construction and substantially uniform thickness, for intertwining with other chain links to form a jewelry chain, has a non-annular cross-section throughout the link with the cross-section being symmetric along a centerline plane through said cross-section. The cross-sectional shape of the link preferably has on each side of the centerline plane, at least two sides that meet at a point of inflection. On each side of the centerline plane, at least one side preferably converges toward said centerline plane. A reduction in manufacturing costs and precious metal used to form the links and therefore the chain is realized by using a non-annular cross-section having such constructional qualities.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: November 11, 2003
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Patent number: 6622469
    Abstract: The wristband with links (2, 3, 4) includes a plurality of bars (5) acting as means for linking and articulating the links with each other and means for holding said bars in said links. Each bar is held axially by at least one of its ends (13) on to a link (2) by means of a collared sleeve (6) designed and arranged to abut against holding means (7, 8) carried both by the bar and the link.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: September 23, 2003
    Assignee: Montres Rado S.A.
    Inventors: Armin G√ľnster, Michael Bach, S√©bastien Bolzt, Christophe Guerry
  • Patent number: 6581367
    Abstract: An article of jewelry, typically in the nature of a bracelet, arm band, navel ring, toe ring, waist band, ankle band, ankle band or choker is proportioned for compressive engagement of the wrist, arm, navel, toe, waist, ankle or throat, which is formed of a malleable material, such as an alloy of two or more of tin, silver, gold, indium, bismuth, gallium, cadmium, and zinc, which alloys are characterized by a low melting temperature. Each article includes a band formed of one or more lengths of twisted inter-spiraled wires formed of said material. The inventive articles of jewelry, in addition to a length proportioned for compressive contact against said body parts are provided with several barbs, substantially identical in their appearance to barbs of traditional barbed wire.
    Type: Grant
    Filed: July 5, 2002
    Date of Patent: June 24, 2003
    Inventors: Neena R. Virag, Mark A. Virag
  • Patent number: 6460323
    Abstract: A chain link of hollow construction and substantially uniform thickness, for intertwining with other chain links to form a jewelry chain, has a non-annular cross-section throughout the link with the cross-section being symmetric along a centerline plane through said cross-section. The cross-sectional shape of the link preferably has on each side of the centerline plane, at least two sides that meet at a point of inflection. On each side of the centerline plane, at least one side preferably converges toward said centerline plane. A reduction in manufacturing costs and precious metal used to form the links and therefore the chain is realized by using a non-annular cross-section having such constructional qualities.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: October 8, 2002
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Patent number: 6339922
    Abstract: An improved jewelry chain of a type having a plurality of links. Each link resembles a fish hook and has a shank with one end thereof having a barbed hook thereon and an opposite end thereof having an eyelet thereon which engages the barbed hook of an adjacent link. The eyelet lies in a first plane and the shank and barbed hook lie in a second plane that is perpendicular to the first plane. The improvements include the barbed hook not touching the shank, the eyelet being so sized so as not to allow the barbed hook of an adjacent link to pass therethrough, except for the eyelet of one terminal link being large enough to allow the barbed hook of the other terminal link to selectively disengage therefrom, and the second plane being arcuate so as to allow each link to lie flat on the skin of the user.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: January 22, 2002
    Inventor: Arthur S. Foster
  • Patent number: 6176073
    Abstract: A coupling link (1) comprises a unitary body having a first main limb (2), a second main limb (3), and a third limb (4) which forms an open loop (6), one end of which extends between the first and second main limbs. Loading of ropes, slings or protection onto the coupling limnk (1) is simply a matter of temporarily deforming the rope or device and looping it over the third limb (4). The required unloading action is too complex for it to happen accidently. The three dimensional topology of the coupling link (1) eliminates the requirement for a spring biased gate and is therefore inherently safer than a conventional karabiner. In a preferred example, the first and second main limbs are joined to form a closed loop (5).
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: January 23, 2001
    Inventor: Thomas Adam Shine
  • Patent number: 6158206
    Abstract: A double helix jewelry chain is constructed from a series of interconnected chain links. Each link is formed with an open mouth defined between a pair of end faces. The end faces are aligned with one another in various predetermined geometrical and dimensional relationships in order to maintain a minimum projected gap or clearance opening equal to or less than the major dimension of an elongated cross section of each link.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: December 12, 2000
    Assignee: D&W Jewelry, Inc.
    Inventors: David Rosenwasser, Avram Moshe Rosenwasser
  • Patent number: 6055802
    Abstract: A chain is formed from a plurality of links that resemble a fish hook. The links include a shank with one end connected to a barbed hook and an opposite end connected to an eyelet. The chain is formed by passing the hook of one link through the eyelet of another link. By selecting the size and number of the links, the chain may be produced for wear as either a necklace, a bracelet or an anklet.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: May 2, 2000
    Inventor: Peter A. DiVietri
  • Patent number: 5966811
    Abstract: A method of using a wire twisting tool for making jewelry, in which a T-shaped tool having a handle is attached to a shaft. The handle has an aperture for receiving the end of a wire and the handle is used to twist the wire about the shaft to form a curled, coiled spring type formation. The first spring type formation is then removed from the tool and a second wire is attached to the tool and curled within the first spring type formation to form jewelry and other items.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: October 19, 1999
    Inventor: Donna Zalusky
  • Patent number: 5660036
    Abstract: A jewelry rope chain formed of a number of links of wire of a cross sectional configuration. The links are intertwined to form an outer appearance of a double helix. A predetermined number of the links is required to form a full helix cycle. At least some of the overall geometric shapes of the links within a full helix cycle are different from the overall geometric shapes of the other links within the same helix cycle. The chain can be formed either by initially selecting the links of different geometric shapes and intertwining them in accordance with a desired sequence. Alternately, initially the chain can be formed of uniform links and thereafter the entire chain rolled or reshaped so as to reconfigure the shape of at least some of the links with respect to other of the links within a full helix cycle.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: August 26, 1997
    Inventor: David Rozenwasser
  • Patent number: 5452572
    Abstract: A rope chain is made from hollow rectangular links having a trapezoidal cross section. The wider parallel surface of the trapezoid is the outer periphery of the shaped link and is the primary surface of the finished rope chain. The narrower parallel surface of the trapezoidal shape, having a channel which forms a longitudinal seam running around the inside of the link, is an inside surface of the finished rope chain and is not visible in a finished chain. The other two sides of the trapezoid converge in symmetrical relationship to the parallel surfaces, and include an angle that approximately equals 360.degree. divided by the number of links required to form a single cycle of links in a double helix, as viewed in an end view of the rope chain. Adjacent links abut, planar surface to planar surface, and form a close fitting circle with a smooth external surface for the rope chain.
    Type: Grant
    Filed: January 3, 1995
    Date of Patent: September 26, 1995
    Assignee: Adipaz Ltd.
    Inventors: Badi Alvaro, Benjamin Hillel
  • Patent number: 5361575
    Abstract: A jewelry rope chain having tightly interfitting links made of wire of a given cross-section, each link having a small gap formed therein, so as to enable one of said links to pass through the gap of a second link, said links being intertwined to fit tightly one against the other and form in-outward appearance a double helix, the improvement comprising each link having a wire cross-section including a major axis defining a longer dimension and a minor axis defining a shorter dimension, said longer dimension being in the plane of the link and the shorter dimension being perpendicular thereto, the ratio of said longer dimension to said shorter dimension being greater than 1.3:1 but less than 3:1.
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: November 8, 1994
    Assignee: David Rozenvasser, Ltd.
    Inventor: David Rozenwasser
  • Patent number: 5201789
    Abstract: The band consists of a plurality of links (20), (22) formed by bringing together four turns (12a), (12b), (12c) and (12d) constrained together by means of pins or equivalent elements inserted in the substantially cylindrical seat which said turns create by partial reciprocal penetration. At least one of said turns and preferably the fourth turn of each link is provided on one side with internal threading into which screws the end (18') of the screw (18) constituting the means of connection between two links (20), (22) and is arranged between the side blocks (30). An alternative form of execution provides that to the branches (42) and/or (44) of the band (40) are connected one or more segments (52) made of metal fabric similarly to the band itself. Said connection is provided by pins inserted in the tubes (54) formed by tube sections (54'), (54"), (54"').
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: April 13, 1993
    Assignee: G.T.F. S.r.l.
    Inventor: Fernando Fontana
  • Patent number: 5185995
    Abstract: Precious metal link wire for forming into individual links members having an outer periphery and an inner periphery. The individual link members are then joined into the jewelry rope chain. The link wires have a majority of their weight of precious metal lying in the outer peripheral volume of the link members. The links made from such link wire save precious metal without requiring a greater number of links to be assembled to form a given unit length of jewelry rope chain having a desired diameter, and jewelry rope chain made from such links have a smooth, tight, and non-corrugated appearance.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: February 16, 1993
    Assignee: OroAmerica, Inc.
    Inventor: Giuseppe A. Dal Monte
  • Patent number: 5092120
    Abstract: A machine for the formation of ornamental chains with cylindrical helix-shaped links, comprising: a first section (A) for handling each loose link up to the connection thereof with the corresponding link, of the chain being in the process of formation, which has been last connected, with a handled vertical shaft (12) carrying a horizontal guide support (15) for a slide (16) of a collet-holder unit horizontally sliding between an inoperative retracted position and two advanced positions for seizing a loose link from a link-forming machine and for positioning the loose link in connection position, respectively; with a collet (35) for the hold of the loose link, which is subjected to a helicoidal feeding motion along its longitudinal axis to carry out the connection with the corresponding last link of the chain in the process of formation; a second section (B) for blocking the last link but one of the chain in the process of formation, with a hollow vertical motorized axially sliding shaft (42) carrying a horizo
    Type: Grant
    Filed: January 23, 1990
    Date of Patent: March 3, 1992
    Inventor: Maruffi Pierino
  • Patent number: 4996835
    Abstract: A jewelry rope chain having tightly interfitting links made of wire of a given cross-section, each link having a small gap formed therein slightly larger than the cross-section of said wire, so as to enable one of said links to pass through the gap of a second such link, said links being intertwined to fit tightly one against the other and form in outward appearance a double helix, the improvement being that each link comprises a non-circular geometric shape, said shape comprising a major axis defining long outer and inner diameters and a minor axis defining shorter outer and inner diameters, said gap lying in a link section parallel to the major axis and said shorter inner diameter being just over X times greater than the cross-section of the link wire, where X is a number equal to or greater than 3.
    Type: Grant
    Filed: January 2, 1990
    Date of Patent: March 5, 1991
    Inventor: David Rozenwasser
  • Patent number: 4986067
    Abstract: A process for the production of an elongated composite member of circular cross section, comprising producing a hollow metal tube having an inside diameter, inserting in the hollow tube an elongated core of circular cross section of a light-weight, tough and ductile material having an outer diameter substantially smaller than the internal diameter of the tube, and reducing the diameter of the tube until said tube is firmly bonded to the outer surface of the core. Thereafter, the diameter of the tube and core together is reduced. The core is of aluminum and the tube is of copper alloy. The composite thus produced is formed into a jewelry chain and then gold plated.
    Type: Grant
    Filed: May 23, 1989
    Date of Patent: January 22, 1991
    Inventor: Gianfranco Caccialupi
  • Patent number: 4757681
    Abstract: This invention relates to a chain link plate which is constructed by a high tensile strength fiber which is wound around between two pivot points and which is fixed to each other by adhesive material. The link plate is improved in strength and decreased in weight.
    Type: Grant
    Filed: June 18, 1987
    Date of Patent: July 19, 1988
    Assignee: Tsubakimoto Chain Co.
    Inventors: Kazumasa Matsuno, Takashi Tsujimoto, Takerou Nakagawa, Yasumasa Tubakimoto, Makoto Kanehira
  • Patent number: 4695015
    Abstract: A spiral wire, comprising adjacent thread spirals (1) positioned in pairs with loops thereof interlapping to form transverse rows of loops in the wire, and linking threads (2) inserted in the rows of loops. The opposite ends of the spiral wire are interconnected by means of a seam thread (2A) into an endless wire. In order to make it easier to insert the seam thread, a clearance (X) is provided between the interlapping loops (1Aa) of the two spirals (1A) forming the seam position, which clearance extends in the direction of the seam thread so that the loops are able to yield with respect to each other in that direction. The spirals of the seam portion are preferably made of a thinner thread, a thread having a flat cross-section or interconnected with a sparser spacing of the loops.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: September 22, 1987
    Assignee: Tamfelt Oy Ab
    Inventor: Ari Salminen
  • Patent number: 4660611
    Abstract: An improved passenger car tire chain employing heat treated medium carbon steel is disclosed. The improved tire chain is approximately twice as durable as that presently furnished to meet NACM-5179(TC) for Type PL chains when AISI 1026 or 1029 carbon steel is employed at least for links of a cross chain meeting the road surface. The cross chain links are closed by welding prepared abutting link ends which have been previously beveled. After being welded closed, the cross chain links are case hardened, quenched, tempered and air cooled. The improved tire chain is then assembled in a conventional manner to include a pair of side members, fastening means to secure a end of each side member to the other end, and a plurality of cross chains extending between the sidewall members at preselected intervals.
    Type: Grant
    Filed: July 31, 1985
    Date of Patent: April 28, 1987
    Assignee: Cooper Industries
    Inventors: Glenn E. Gockley, Michael D. Shaffer
  • Patent number: 4642982
    Abstract: A chain link belt includes a plurality of tube pairs, each pair comprising two tubes joined along their sides in a substantially parallel relation. A plurality of wires of predetermined lengths are used to join the tubes to form the belt links. The wires are formed in a quadrilateral with the tubes on opposite sides thereof and with the joined ends of the wire links positioned within one of the tubes hidden from view. One of the wires is engaged through one tube of the adjacent tube pairs and another wire is engaged through the other tube pairs for connection of other tube pairs to form the chain link belt.
    Type: Grant
    Filed: July 25, 1985
    Date of Patent: February 17, 1987
    Inventor: Danny J. Gray
  • Patent number: 4417437
    Abstract: A watchband is comprised of a plurality of interconnected segments of generally helical shape. The segments are formed of tubular metal rods which may be composed of a noble metal alloy, a copper alloy or stainless steel. The use of tubular metal rods as opposed to solid metal rods results in a reduction in materials costs and a lighter weight watchband. The watchband is manufactured by winding a tubular metal rod on a mandrel into a generally helical shape, cutting the helically-wound tubular metal rod to predetermined lengths, and connecting together the lengths in lengthwise juxtaposition so that the coils of one length partly overlie the coils of adjoining lengths to thereby form a watchband comprised of interconnected tubular metal rod segments. By using tubular as opposed to solid metal rods, the annealing process normally required in order to wind the rod into helical shape can be eliminated.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: November 29, 1983
    Assignee: Kabushiki Kaisha Daini Seikosha
    Inventor: Katsuo Museki
  • Patent number: 4123900
    Abstract: A coupling or chain connector device is disclosed comprising a first coupling member cooperable with a second coupling member. The second coupling member has a tortuous path between the inner and the outer regions thereof. The tortuous path comprises a first through fourth substantially linear sections and a first through third interconnecting sections sequentially interposed between the first through fourth linear sections. The first coupling member is at least partially receivable in the second coupling member for passing the first coupling member through the tortuous path to couple the first coupling member to the second coupling member. The first coupling member may take the form of a linear wire or bar or may take the form of a substantially ring-shaped structure. The first and second coupling members may be incorporated into a unitary structure with the first coupling member established on one end thereof and the second coupling member established on the other end thereof.
    Type: Grant
    Filed: May 19, 1977
    Date of Patent: November 7, 1978
    Inventor: Alexander M. Sadowski
  • Patent number: 4095415
    Abstract: An expandable metal belt is formed from a plurality of figure-8 shaped sections linked together, each section being formed by weaving a tubular-shaped mesh section from spring metal wire. A coiled wire tensioned spring is passed through the center of the tubular shaped mesh and the ends of the spring are secured to the ends of the tubular mesh section. The opposite ends of the mesh section and tension spring are looped around and brought into abutting relationship and positioned in adjacent parallel relationship to the center of the mesh section to form two loops in the shape of a figure-8. The abutting ends and adjacent center of the mesh are then clamped together by bending a thin metal piece tightly around the adjacent portions of the tubular-shaped mesh section.
    Type: Grant
    Filed: December 15, 1976
    Date of Patent: June 20, 1978
    Inventor: Richard R. Bower
  • Patent number: 4056928
    Abstract: An ever open link-chain, i.e. a link-chain having links which are readily to be mounted or dismounted manually without deformation but cannot get detached of themselves without manual intervention.
    Type: Grant
    Filed: April 29, 1976
    Date of Patent: November 8, 1977
    Inventor: Robert de Vries
  • Patent number: 4011715
    Abstract: A chain link, a series of which can form a chain, the links having hook means at one end and a transverse bight at the other end whereby the hook means of one link can be detachably connected to the bight of an adjacent link. The hook means are formed by the ends of the legs of the link being turned back upon themselves so as to define a relatively narrow opening between the ends of the hooks and their respective legs. A transverse slot-like recess is formed in the legs adjacent the bight and at the end of the link opposite that on which the hook means are formed. The slot-like recess defines a narrower leg portion which is of a thickness less than the opening between the ends of the hooks in the legs so that in order to detach the chain links from one another, it is necessary to fold the links together so that the narrower leg portion can be slipped transversely through the relatively narrow opening of the hook means. This interlocking construction prevents inadvertent disengagement of the chain links.
    Type: Grant
    Filed: November 28, 1975
    Date of Patent: March 15, 1977
    Assignee: Graetz Manufacturing, Inc.
    Inventor: Edward A. Graetz