Method of making a cable structure for data signal transmission

Information

  • Patent Grant
  • 6823587
  • Patent Number
    6,823,587
  • Date Filed
    Monday, August 5, 2002
    22 years ago
  • Date Issued
    Tuesday, November 30, 2004
    20 years ago
Abstract
A method of making a data cable includes coupling an electrical conductor of an end of a cable to an electrical contact that is positioned within a portion of a connector housing. A protective clamp is positioned over a section of the cable rearwardly of the electrical contact. Another portion of the connector housing is formed over the cable section and the clamp, to thereby secure the cable with the connector housing. The protective clamp is positioned between the formed portion of the connector housing and the cable section and provides mechanical protection for the cable section to reduce damage thereto.
Description




FIELD OF THE INVENTION




This present invention relates generally to signal transmission cable structures for electronic devices and particularly to improving the performance and construction of such a cable structure for high speed data transmission.




BACKGROUND OF THE INVENTION




The use of electronic devices of all kinds is ever increasing, which has led to a significant increase in the demand for improved components utilized with such devices. One facet in the utilization of such electronic devices involves networking multiple devices together and establishing data communications between the various devices within a networked system. For example, many electronic devices may be coupled together and synchronized with other electronic devices, such as a central control system or computer. Data is transmitted at very high speeds between the networked devices within a system.




For fast and accurate data and information transmission in a networked system, the individual system devices must be optimized when they are networked together so that the system functions at a suitable performance level. Particularly, the interface components of the devices in the system, which allow the various electronic devices to be networked, must be optimized for greater speed and performance. One particularly important interface or interconnect component is the transmission cable which extends between the electronic devices that are communicating. Various cable designs have been utilized for such data and information transmission.




Generally, suitable cable structures utilize a plurality of electrical conductors and a connector structure at one or both ends which interfaces with a networked electronic device. For example, connectors of a cable might plug into appropriate socket structures in the electronic devices. In many applications, the cables are arranged in a high density cable arrangement which is configured to plug into a central backplane which includes a large number of sockets. Data cables include signal conductors, that is, transmission lines which carry the actual data or information signals, and ground conductors which provide an electrical reference for the transmitted data and information.




While the construction of existing cable structures has been suitable for maintaining the integrity of the data signals transmitted thereon, significant attention has still been paid to the termination components or connectors of the cable structure. The connectors of the cable structure provide an electrical transition between the individual electrical conductors of the cable structure, and hence the transmitted signals, and the internal circuitry of the electronic device to which the cable structure is connected. Generally, such connectors utilize a plurality of conductive contacts, often in the form of metal strips, pins and/or tabs. The signal and ground conductors of the cable terminate at the contacts of the connector, and are electrically coupled to the contacts. The electronic device or backplane, into which the connector is plugged, then includes its own set of contacts, such as pins or tabs within a socket, for example, for interfacing with the contacts of the cable connector. Typically, the connector will engage the socket in the traditional male-female relationship. However, various other different connector structures have been utilized as evidenced by numerous patents in the field directed to connector designs.




In existing high speed data cable structures, the contacts of the connector are often housed in an individual plastic, insulative housing piece. The individual cables are then attached to the contacts in the housing piece, such as by soldering the cable conductors to the contacts. Thereafter, the rest of the plastic connector housing, such as in the form of a flat wafer, is molded over the housing piece, over the contacts and over sections of the cables to form the complete connector housing. The connector housing interface with the cables couples the housing to the cables to provide strain relief to the contact/conductor connection. This helps to prevent the cables from being pulled from the connector. A metal shield might also be placed over a side of the connector body is some designs to eliminate electrical interference and crosstalk from affecting the cable at the site of the connector. In currently available designs, the connector housing is thin, such as a 2 millimeter thick wafer, so that high densities of connectors may be stacked next to each other and plugged into a socket.




The manufacturing of the connector, and particularly the molding of the wafer housing over the ends of the cables and over the individual housing piece and contacts, exposes the cable ends to significant heat and pressure associated with the molding process. This degrades the overall integrity of the cable structure. First, the pressure of the mold tends to pinch and smash the ends of the cables where they engage the connector housing and contacts. The cables, which may have a circular cross section, are smashed into oblong cross sections at their ends. This affects the integrity of the insulation of the cable and the conductors, such as the metal braid which surrounds the center conductor in a coaxial cable. Furthermore, the heat of the process only enhances the physical deformation of the cables. Such mechanical damage to the cables affects the electrical integrity of the overall cable structure. For example, cable disconnections at the connector and/or short circuits may result due to the mechanical damage from the molding process. As a result, the cable structures are less robust. Furthermore, the integrity of the data signal sent over the cable may be affected. Cable structures used for high speed data transmission (e.g. rates as high as 1 Gigabit/second) are particularly susceptible to mechanical damage, because the high frequency signals are more sensitive to variations in the mechanical and electrical features of the cables which may exist at the connector termination.




It is therefore desirable to make cable structures for high speed data transmission which are mechanically and electrically more sound than existing cable structures. To that end, attempts have been made to reduce the affects of the manufacturing process on the electrical integrity of the cable structure. Furthermore, efforts are always ongoing to improve the electrical characteristics of the cable and to improve the quality of the signal and ground connections. Attenuation reduction and crosstalk reduction are particular goals for high speed data cables. Also tight signal skews and better reliability are also desirable characteristics.




Therefore, it is desirable to have a cable structure for high speed data communication which has improved signal integrity through the connector of the cable structure.




It is also desirable to have a mechanically and electrically robust and reliable cable structure and connector.




Furthermore, it is desirable to reduce the mechanical and electrical damage to a cable structure incurred during manufacturing and installation of the connector on the cable structure.




It is further desirable to have a connector design which is sufficiently compact, but which maintains a useful density of signal conductors for high speed data applications.




These objectives and other objectives will become more readily apparent from the summary of invention and detailed description of embodiments of the invention set forth herein below.




SUMMARY OF THE INVENTION




A cable structure in accordance with the principles of the present invention comprises one or more cables terminating in a connector. The connector comprises a housing with a front end and a rear end and including a plurality of electrical contacts positioned within the housing proximate the front end. The contacts of the connector are configured for engaging the corresponding contacts of an electrical device when the cable structure is coupled to the device. The conductors of the cable, such as a signal conductor and a ground conductor, terminate in the connector housing. Specifically, the conductors are each electrically coupled to a respective housing contact. A signal conductor of the cable connects to a signal contact, and the ground conductor connects to a ground contact, in one embodiment of the invention.




The cable structure may further comprise a metal shield positioned on one face of the housing. The shield is electrically coupled to the ground contact for electrically grounding the shield through the ground contact. Alternatively, the ground conductor of the cable may be connected directed to the shield, wherein the shield is then connected to the contact to thereby define the ground contact.




The connector housing that supports and houses the contacts is coupled with sections of the various cables rearwardly of the contacts. In one embodiment, a portion of the connector housing is molded around the sections of the cables to thereby couple the housing to the sections of the cables. In accordance with one aspect of the present invention, a protective clamp is interposed between the connector housing and the cable sections which are coupled to the connector housing. The protective clamp, which may be formed of a rigid material such as metal, provides mechanical protection for the cable sections to reduce damage thereto which may result from molding or otherwise forming the connector housing over sections of the cables. Specifically, the protective clamp protects the cable sections over which a portion of the housing is molded, to thereby reduce the effects of the heat and pressure of the molding process on the individual cables of the cable structure. The cable structure may include one or more cables, and therefore, the protective clamp may be appropriately sized for use with one or multiple cables.




In one embodiment, the protective clamp comprises two parts or portions which are similarly formed to create a clamshell structure which fits over the cable sections. The parts are appropriately configured to overlay the various cables. Tabs on either end of the individual clamp parts are adjacent to each other when the clamp is in position. Apertures are formed in the tabs so that when the connector housing is molded around the protective clamp and coupled with the cable sections under the clamp, molten plastic flows through the apertures, thereby locking the clamp together and coupling the clamp with the connector housing and the cables.




In another aspect of the present invention, an open window section is formed in the housing and is positioned between the contacts and the protective clamp. The open window section exposes other sections of the cables to further reduce damage to the cable when the connector housing is molded therearound. That is, the open window section eliminates a portion of the connector housing which would otherwise engage the cable sections and thereby eliminates exposure of those cable sections to the heat and pressure of the molding process. The open window section, and the protective clamp, in combination, have been found to improve the overall integrity and robustness of the cable structure. Alternatively, the protective clamp may be utilized alone without an open window section. To that end, the clamp may be dimensioned in length to cover the sections of the cables which would otherwise be susceptible to damage from the heat and pressure of the housing molding process.




One suitable connector housing for the cable structure of the invention is a thin, wafer-like shape with a thickness of approximately 2 milimeters. With such a connector housing, multiple connectors may be stacked together in high density fashion to interface with a device, such as a socket. The cable structure further comprises one or more latch tabs which are coupled to the connector housing. The latch tabs are configured for being engaged by a latch structure when a cable structure is coupled to an electrical device, such as a socket, for securing the cable structure in the socket in a high density cable arrangement. These and other features of the invention will become more readily apparent from the Detailed Description below.











BRIEF DESCRIPTION OF THE DRAWINGS




The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with a general description of the invention given below, serve to explain the principles of the invention.





FIG. 1

is a perspective view of one embodiment of the invention with part of the connector housing removed.





FIG. 2

is a perspective view showing one embodiment of the invention and the complete connector housing.





FIG. 3

is a view similar to

FIG. 2

showing a portion of the connector housing cut away to illustrate the protective clamp in one embodiment of the invention.





FIG. 4

is a perspective view, partially cut away, illustrating an alternative embodiment of the invention.





FIG. 5

is a perspective view, partially cut away, illustrating coupling of cables to the contacts of the connector.





FIG. 6

is a perspective view illustrating one embodiment of the invention, coupled together in a high density formation within a socket.











DETAILED DESCRIPTION OF THE INVENTION





FIG. 1

is a perspective view, partially cut away, illustrating one embodiment of the present invention. Cable structure


10


comprises one or more cables or transmission lines


12


terminating in a connector


14


. In the embodiment illustrated in

FIG. 1

, four individual cables


12




a


,


12




b


,


12




c


,


12




d


terminate in the connector


14


. A single cable could be utilized in the invention, or a greater number of transmission lines than those shown in

FIG. 1

may also be utilized in accordance with the principles of the present invention.




The individual cables


12


could be of any suitable form. In the figures each of the cables


12


is a coaxial cable and includes a center conductor


16


and an outer conductor


18


. Generally, the center conductor is the signal conductor of the cable and the outer conductor is the ground conductor or drain conductor. Suitable center conductors for the invention are multi-stranded copper wires or solid copper wires. The outer conductor could be a metal braid or other suitable structure. Each of the center conductors


16


are separately insulated by insulation


20


, which may be extrude onto the conductors. The outer conductor


18


is then positioned over the insulation layer


20


. A jacket


22


of insulative material covers the cable and may be extruded over the conductor


18


. Suitable insulative materials, such as insulative thermoplastics may be used for layers


20


,


22


. It will be understood by a person of ordinary skill in the art that the type of transmission line or cable used in the invention could take any suitable form and is not limited to that shown in the Figures.




Referring to

FIG. 2

, the connector


14


comprises a connector housing


24


formed of a suitable plastic material, a portion of which may be molded around the other components of the connector. One suitable material for molding a portion of or the entire connector housing


24


is a liquid crystal polymer such as the VECTRAâ„¢ polymer available from Celanese. In one suitable manufacturing process for forming the connector housing, a portion or piece of the housing is pre-formed and another portion of the housing is molded around the pre-formed portion and the other components of the connector. For example, a portion or piece


26


of the housing


24


may be pre-formed and configured to contain electrical contacts


28


into which the conductors of the transmission lines terminate (see FIG.


1


). The housing will contain a plurality of such contacts which will generally be positioned proximate a front end


30


of the housing, while the conductors


16


,


18


feed into the housing at the rear end


32


. A rear portion


34


of the housing, which surrounds sections of the cables


12


and part of the front portion


26


of the housing, might be molded over the pre-formed portion


26


to form the complete connector housing


24


. Housing portion


26


houses the plurality of contacts (see

FIGS. 1 and 5

) and defines the positions of the contacts in the connector so that the connector may properly engage a socket in an electrical device or backplane. The rear portion


34


of the housing surrounds sections of the cables


12


to ensure that the cables are secured to the connector


14


and that the various conductors of the cables are properly positioned for engaging the respective contacts


28


. The molded portion


34


of the housing provides strain relief for the cables


12


and prevents them from being pulled from the connector. Therefore, portion


34


of the connector housing is often referred to as the strain relief portion of the connector. The housing


14


is configured such that openings


46


are formed in the front end


30


so that the contacts


28


may engage the respective contacts of an electronic device when the cable structure is coupled to a device. For example, the cable structure may be plugged into a socket wherein the contacts are pins which fit into the openings


46


and are grasped by the contacts


28


. The contacts


28


are configured for engaging contacts of a device when the cable structure is coupled to a device. To that end, the contacts may be any suitable form to achieve that result. In

FIG. 5

, the contacts are shown with spring fingers


29


which are configured to grasp a contact pin (not shown). Because

FIG. 5

is shown cut away, only one finger


29


of an opposing pair is shown. The connector housing


24


may take numerous forms and the housing shape shown in the Figures is only one embodiment of a suitable housing. As will be understood by a person of ordinary skill in the art, the housing shape and contacts will depend upon the ultimate end application of the cable structure and the device to which it must connect.




Referring the

FIGS. 1 and 5

, the cable structure


10


may further comprise a metal shield


38


which overlies one face


43


of the connector housing


24


. The shield


38


is electrically coupled to a ground conductor


18


and is therefore grounded for reducing interference and cross-talk in the cable structure, according to well-known principles. In one embodiment of the invention, the shield is formed of a phosphor bronze metal. Referring to

FIG. 5

, the shield


38


includes a dimple or detent


40


which extends through an appropriately formed opening


41


in the housing to couple to an appropriate contact


28


. The shield dimple


40


may then be welded (e.g. resistance welded) to the appropriate contact


28


. The shield will generally extend over a significant portion of the face


43


of the housing for providing sufficient shielding from interference and cross talk. In

FIG. 5

, dimples


40


are shown for two adjacent contacts for the purpose of illustration. The forwardmost contact


28




a


in the drawing, as discussed below, is coupled to a signal or center conductor


16


and thus will be defined as a signal contact. As noted above, the shield is grounded, and thus would not actually be coupled to a signal contact


28




a


. However, for the purposes of illustration only, the cutaway of the dimple


40


and housing opening


41


are shown with contact


28




a


, as well as a ground contact


28




b


, even though it will only be used to couple shield


38


to the ground contact


28




b.






Within the cable structure


10


, the various contacts


28


will either be a signal contact or a ground contact. That is, the contact


28


will either be connected to the center conductor


16


carrying the data signal or the ground conductor


18


which is grounded. In forming the cable structure


10


, particularly when forming the connector


14


, various conductors


16


,


18


are coupled to the appropriate contacts


28


, as shown in FIG.


1


. Next, the rear portion


34


of the housing is added, as shown in

FIG. 2

, such as by molding the housing portion


34


over sections of the cables


12


, over part of the housing portion


26


, and over parts of the contacts


28


that are not already covered by housing piece or portion


26


. The molded housing portion


34


may not completely cover portions


26


, and openings


35


may remain, providing exposure of the contacts


28


through the housing for access, if necessary. When coupling the conductors to the appropriate contacts, different embodiments of the connector might be utilized. In one embodiment, the center conductor


16


is coupled to an appropriate contact


28




a


(see FIG.


5


). Center conductor


16


may either be welded to the contact


28




a


or might be physically gripped by the contact due to the configuration of the contact. For example, as may be seen in

FIGS. 1 and 5

, opposing finger sections


50


of the contact might be configured to physically grip the center conductor


16


. Alternatively, the center conductor


16


might be welded to the contact


28




a


(not shown). However, a combination of both physical gripping and welding might be utilized to secure the center conductor


16


to the contact. In the embodiment of the invention illustrated in the drawings, coupling the center conductor


16


to a contact


28




a


will define that contact as a signal contact.




Connector


14


also includes ground contacts which are electrically grounded. Conductor


18


is grounded and is coupled to an appropriate contact for defining a ground contact. For example, contact


28




b


, shown in

FIG. 5

, might be designated a ground contact. In one embodiment of the invention, the conductor


18


may be electrically coupled (such as by welding) to a jumper wire


54


, which is then jumped to the contact


28




b


and welded or soldered thereto forming the ground contact


28




b


. To ground shield


38


, the dimple


40


is formed in the shield and is resistance welded to contact


28




b


as illustrated in FIG.


5


. In such an embodiment, the cable


12


grounds the contact


28




b


which then, in turn, grounds the shield


38


. Alternatively, the conductor


18


might be soldered directly to the shield


38


, as shown by solder bead


19


in FIG.


5


. The dimple


40


is then resistance welded to the contact


28




b


. In such an embodiment, the shield


38


is directly grounded by the ground conductor


18


and the contact


28




b


is then indirectly grounded by its contact with shield


38


. In either case, both the shield and contact


28




b


are grounded. It will also be readily understood to a person of ordinary skill in the art, that the shield might be coupled to the contacts and/or to the ground conductor in other suitable ways.




Referring to

FIG. 1

, the shield includes tangs


55


which couple to the housing portion


34


. The tangs include apertures


56


through which molten plastic may flow when housing portion


34


is molded around the cables


12


and part of housing portion


26


. In that way, the shield


38


is secured to connector


14


.




As noted above, the formation of connector


14


on the end of the cable structure, and particularly, the molding of housing portion


34


, exposes the ends of the individual cables


12


to significant heat and pressure associated with the molding process. This degrades the overall integrity of the cable structure by deforming the individual cables


12


and making the entire structure less robust and more subject to failure. In accordance with one aspect of the present invention, a protective clamp covers sections of the cables which are coupled to the connector housing. As shown in

FIG. 1

, the protective clamp is positioned or interposed between part of the connector housing portion


34


and sections of the cables which are surrounded by the connector housing portion to provide protection to the cables when the housing portion


34


is formed thereon. Referring to

FIG. 2

, the contacts


28


are positioned in housing portion


26


and the housing portion


26


houses and surrounds the contacts. In the embodiment illustrated in the figures, the protective clamp


60


is shown positioned rearwardly of the contacts and housing portion


26


and rearwardly of the termination end of the individual cables


12


. The protective clamp


60


is formed of a material sufficiently rigid to offer mechanical protection to sections of the cables which interface with the connector housing portion


34


, specifically where the connector housing portion is molded around certain sections of the termination ends of the cables. One suitable protective clamp is a metal clamp formed out of a beryllium-copper alloy having a thickness of approximately 3-5 mils. Referring to

FIG. 1

, one embodiment of the protective clamp


60


is formed as a clamshell clamp having an upper part or portion


60




a


and a lower part or portion


60




b


which is similarly formed. The clamp parts


60




a


,


60




b


come together in generally a clamshell arrangement as illustrated in

FIG. 1

to protect certain sections of cable


12


. The clamp covers sections of cables


12


at the position where the cables exit from the connector housing


24


, and particularly from housing portion


34


. The clamp parts


60




a


,


60




b


are appropriately configured to cover and protect sections of the cables. Each clamp part includes side tabs


62


and arcuate portions


63


extending between the tabs


62


. In the embodiments shown, the cables have generally circular cross-sections and the arcuate portions


63


are appropriately formed to match the radius of the circular cable cross-sections for a tight fit around the cables. The side tabs


62


are similarly formed in the opposing clamp parts. In each of those tabs


62


, an aperture


64


is formed, and the apertures are aligned when the clamp parts


60




a


,


60




b


are together. When the housing portion


34


is molded onto the cable ends and around the protective clamp


60


, molten plastic flows through the apertures


64


to thereby couple the clamp to housing portion


34


, lock the clamp into position, and secure the clamp parts together around the protected portion of the cable. The clamp might be formed of two separate parts or may be formed as a single structure with halves that are hingedly attached.




Clamp


60


may be suitably dimensioned and appropriately formed to cover each of the sections of the cables of the cable structure


10


. As illustrated in the drawings, a four cable clamp is utilized. The clamp may be dimensioned in length to protect certain sections of the cable during formation of the connector


14


. As illustrated in

FIGS. 2 and 3

, an open window


70


is formed in housing portion


34


between the clamp


60


and the individual housing portion


26


. The open window


70


in portion


34


, exposes cable sections


72


and thereby further minimizes damage to the ends of the cable during formation of the connector housing


24


. The exposed sections


72


of the cables are not generally subjected to the heat and pressure associated with the molding of portion


34


around the cables. Therefore, protective clamp


60


, is shown with a length L sufficient to protect the sections of the cables


12


which are coupled to the housing portion


34


when it is molded therearound. Referring to

FIG. 3

, sections of the clamp


60


may be seen beneath housing portion


34


to protect the cable sections covered by housing portion


34


.




Alternatively, the connector housing


24


might be formed without an open window, thus exposing significantly larger sections of the cable ends to the heat and pressure of the molding process. In such an embodiment, a clamp


74


might be configured and dimensioned as illustrated in

FIG. 4

for further protecting cable sections covered by housing portion


34


. The inventors have found that the protective clamp in combination with the cable structure of the invention improves the overall integrity and performance of the cable structure


10


.




In accordance with another aspect of the present invention, as illustrated in

FIGS. 2 and 3

, the open window


70


might be utilized in combination with the protective clamp


60


in order to further improve the integrity and robustness of the cable structure


10


and the connector


14


. The inventors have further found that the combination of the protective clamp


60


and the window


70


also enhances the integrity of the cable structure and its performance.




In accordance with another aspect of the present invention, as illustrated in

FIG. 6

, connector


14


comprises a latch tab or comb


80


located on either side of the connector


14


. As illustrated in

FIG. 6

, cable structure


10


and connector


14


are formed to be generally thin. For example, one suitable thickness T for the connector


14


is 2 millimeters. In use, the thin connectors


14


may be stacked on top of each other or side by side as illustrated in FIG.


6


. In that way, they can be connected in very high densities to a device, such as the socket


82


. Socket


82


may be coupled to other electronic devices and network components, as appropriate, such as to a backplane for a network. Socket


82


includes a plurality of pins (not shown) which extend into the openings


46


formed in the front end


30


of the connector housing


24


to facilitate electrical connection between the socket device


82


and the cable structures


10


. The connectors illustrated in the figures are suitable for such high density connections.




Once plugged into or otherwise connected to the device


82


in the high density format as illustrated in

FIG. 6

, a latch structure


84


engages one or more latch tabs or combs


80


of the connectors to lock the connectors


14


into the socket


82


. The tabs or combs


80


give the connector structure greater rigidity. In one embodiment of the invention, each connector


14


may include opposing latch tabs, and the latch tabs


80


may be separate pieces which engage appropriately formed notches


86


in the connector housing. In such a case, each connector would be engaged by a latch structure


84


to hold the connector in the socket. Alternatively, as illustrated in

FIG. 6

, the latch tabs


80


might be formed as elongated structures or combs so that a single latch tab is coupled to multiple stacked connectors


14


. In that way, the latch structure


84


only has to engage a portion of the tab


80


, as illustrated, to lock all of the connectors into the socket. Furthermore, with longer single latch tabs


80


, the various connectors are further coupled together into a more rigid structure. The latch structure


84


cooperates with teeth


87


to secure the connectors


14


in the socket


82


. Handles


88


facilitate manipulation of the latch structure


84


to engage the latch tabs


80


. The latch structure


84


is appropriately configured to engage a section of latch tab


80


and thereby latch or lock the connectors into socket


82


. As illustrated in

FIGS. 2 and 6

, the connector housing, and particularly portion


34


of the housing, may be formed with appropriate notches


89


and alignment pins


90


so that the alignment pins of the connector engage the notches of an adjacent connector when the connectors are stacked in a high density fashion such as within a socket as illustrated in FIG.


6


. In that way, all the connectors are properly aligned so that the contacts with those connectors are able to interface properly with the contacts of the socket


82


. In further reference to FIG.


6


and the embodiment illustrated therein, the connector housing


24


is appropriately formed for engaging slots


92


formed in the socket


82


.




The drawing of

FIG. 6

illustrates latch tabs or combs


80


which have generally cylindrical outer ends that are engaged by the latch structures


84


. It should be understood that the tabs may take other shapes and that the latch structures may also be modified to take a different appropriate shape for engaging the latch tabs.




While the present invention has been illustrated by the description of the embodiments thereof, and while the embodiments have been described in considerable detail, it is not the intention of the applicant to restrict or in any way limit the scope of the appended claims to such detail. Additional advantages and modifications will readily appear to those skilled in the art. Therefore, the invention in its broader aspects is not limited to the specific details representative apparatus and method, and illustrative examples shown and described. Accordingly, departures may be made from such details without departure from the spirit or scope of applicant's general inventive concept.



Claims
  • 1. A method of making a cable structure for data signal transmission, the method comprising:coupling an electrical conductor of an end of a cable to an electrical contact positioned within a portion of a connector housing; positioning a protective clamp over a section of the cable rearwardly of the electrical contact; molding a portion of said housing around said section of the cable and protective clamp, to thereby secure the cable with the connector housing; the protective clamp positioned between the molded portion of the connector housing and the cable section and configured for providing mechanical protection for the cable section during the molding step to reduce damage thereto; whereby the integrity of the cable structure is enhanced.
  • 2. The method of claim 1 wherein said protective clamp is made of metal.
  • 3. The method of claim 1 further comprising positioning a metal shield on a face of the housing.
  • 4. The method of claim 1 wherein the protective clamp includes at least two pieces, the method further comprising positioning the pieces around the cable section prior to molding the housing portion.
  • 5. The method of claim 1 wherein said protective clamp comprises an aperture therein, the molded portion of the housing engaging said aperture to couple the housing portion and clamp together on the section of the cable.
  • 6. The method of claim 1 further comprising forming the housing portion to include an open window section positioned between the contacts and the protective clamp, the open window section exposing a portion of the cable.
  • 7. The method of claim 1 wherein the cable includes a signal conductor and a ground conductor, the method comprising electrically connecting the signal conductor to a contact and electrically connecting the ground conductor to a different contact, and positioning a metal shield on a face of the housing and electrically coupling the shield to the grounded contact.
  • 8. The method of claim 7 wherein said metal shield includes a dimpled portion, the method comprising engaging the grounded contact with the dimpled portion to provide the electrical coupling thereto.
  • 9. The method of claim 1 wherein the cable includes a signal conductor and a ground conductor, the method comprising electrically connecting the signal conductor to a contact and positioning a metal shield on a face of the housing and electrically connecting the shield to said ground conductor, and further electrically coupling the metal shield to a different contact.
Parent Case Info

This application is a divisional of application Ser. No. 09/629,228, filed Jul. 31, 2000 now U.S. Pat. No. 6,428,344.

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