The present disclosure relates to the field of connectors that mechanically and electrically join or couple electrical conductors.
In communication systems in which signals are coupled via a coaxial cable, such as community antenna television (CATV) systems, various equipment housings are typically distributed along the cable. For example, the communication signals are attenuated by the coaxial cable and amplifiers are commonly placed at periodic intervals to maintain proper signal levels. Directional couplers, splitters, multi-taps, and similar passive devices are also interposed at various points in the system to provide signals to various secondary transmission paths. As a more specific example multi-taps are used in CATV systems to provide a plurality of subscriber drops for connection to television receivers in the subscribers' premises. Segments of the coaxial cable must be coupled to each of these various equipment housings.
Typical CATV installations can be either aerial or underground. In aerial installations the coaxial cable and equipment housings are typically suspended from a metal strand. In underground installations the cable is buried underground with the equipment housings ordinarily mounted in pedestals. When aerial strand mounting is used, it is normally desired to provide access ports to the equipment housings on opposite sides so that bending of the coaxial cable is minimized. When pedestal mounting is used in underground or buried installations, access ports on the same side of the equipment housing are normally desired. To accommodate these conflicting requirements, a pair of access points are normally provided at two corners of the equipment housing so that either type of mounting can be accommodated with a single equipment housing. The unused access ports are plugged or capped.
The two commonly used methods of connecting the coaxial cable to the equipment housing include a feed-through connector and a center-seized connector. In the feed-through connector, the center conductor of the coaxial cable feeds through the connector and is seized by a connector block within the equipment housing. In the center-seized connector, the center conductor of the coaxial cable is seized by the connector and mechanically connected to a pin or probe which inserts into the equipment housing and is connected therein, for example, by a connector block.
While connector blocks capable of receiving the center conductor of the coaxial cable or the substitute connector probe from two right-angle directions are known in the prior art, the technique normally used is to provide two intersecting threaded holes through the block at 90° along with two more threaded holes at the other end of the block wherein there is a third threaded hole through the other end of the block at 180° and fourth threaded hole which intersects the third threaded hole at 90°. The conductor to be seized is inserted through one of the holes and a clamping screw or set-screw is threaded into the other intersecting hole to clamp the conductor in the connector block. The set-screw presses the conductor against the wall of the intersecting hole. After the set-screw is threaded into the other intersecting hole, a dust cap is affixed to the splice block to cover the set screw.
In contrast to the traditional arrangement requiring a separate set screw (to press the conductor against the wall) and a separate dust cap to block moisture by covering the screw, it may be desirable to provide a single structure that is configured to perform both functions of blocking moisture and engaging contact between a center conductor and a conductive insert/portion of the connector block.
In one embodiment of the present disclosure, a cable connector may include a housing, a conductive insert affixed within the housing, a first conductive plug and a second conductive plug. The housing may define a first port, a second port, a third port, and a fourth port. The first and second conductive plugs may be removably affixed to the housing. The first conductive plug provides a single structure that is configured to block moisture and engages contact between the first center conductor and the first end of the conductive insert by urging the first center conductor against first end of the conductive insert. Alternatively, the first conductive plug may include a dust cap, an insulator and a pin that are rotationally affixed to one another. The first port, the second port, the third port, and the fourth port may each be a threaded bore.
The first conductive plug is configured block moisture from entering the housing and is configured to push a first center conductor of a first cable against a first end of the conductive insert. The second conductive plug is configured block moisture from entering the housing and is configured to push a second center conductor of a second cable against a second end of the conductive insert.
The dust cap may define a recess configured to receive the insulating pin and wherein the insulating pin is press-fitted into the recess. The conductive insert may be formed by an elongated member which extends from a first housing end to a second housing end. The first end of the elongated member defines a first threaded bore and a second threaded bore. The second end of the elongated member defines a third threaded bore and a fourth threaded bore. The first threaded bore of the conductive insert may be co-axially aligned with the first port. The second threaded bore of the conductive insert may be co-axially aligned with the second port. The third threaded bore of the conductive insert may be co-axially aligned with the third port. The fourth threaded bore of the conductive insert may be co-axially aligned with the fourth port.
The insulating pin may include a first portion having a first diameter and a second portion having second diameter, and a third portion having a third diameter wherein the third diameter may optionally be less than each of the first diameter and the second diameter. The third portion of the insulating pin is configured to push a first central conductor of a first coaxial cable against the conductive insert.
In yet another embodiment of the present disclosure, a cable connector may include a housing, a conductive insert affixed within the housing, a first conductive plug, and a second conductive plug. The housing may define a first port, a second port, a third port, and a fourth port. The first and second conductive plugs may be removably affixed to the housing. The first conductive plug may further includes a dust cap, an insulator, and a pin which are rotationally affixed to each other. The first conductive plug provides a single structure that is configured to block moisture and engage contact between the first center conductor and the first end of the conductive insert by urging the first center conductor against first end of the conductive insert. The second conductive plug also provides a single structure that is configured to block moisture and engage contact between the second center conductor and the second end of the conductive insert by urging the second center conductor against the second end of the conductive insert.
The first conductive plug may be configured to block moisture from entering the housing and may also be configured to push a first center conductor of a first cable against a first end of the conductive insert. The second conductive plug may be configured block moisture from entering the housing and may also be configured to push a second center conductor of a second cable against a second end of the conductive insert. The first port, the second port, the third port, and the fourth port are each a threaded bore.
The dust cap may define a recess which is configured to receive the insulator wherein the insulator is press-fitted into the recess. The insulator of the second embodiment may further include a first portion and a second portion. The first portion may be press-fitted within the recess of the dust cap. The second portion may define an inner bore which is configured to receive a proximate end of a pin which is press-fitted into the inner bore. The pin may configured to push a first center conductor of a first cable against the conductive insert. The pin may optionally be formed from a conductive material.
The conductive insert of the second embodiment may further include an elongated member which extends from a first housing end to a second housing end. A first end of the elongated member may define a first threaded bore and a second threaded bore. A second end of the elongated member may defines a third threaded bore and a fourth threaded bore. The first threaded bore of the conductive insert may be co-axially aligned with the first port. The second threaded bore of the conductive insert may be co-axially aligned with the second port. The third threaded bore of the conductive insert may be co-axially aligned with the third port. The fourth threaded bore of the conductive insert may be co-axially aligned with the fourth port.
Further advantages and features of the present disclosure will become apparent from the following description and the accompanying drawings, to which reference is made. In which are shown:
Reference will now be made in detail to presently preferred compositions, embodiments and methods of the present disclosure, which constitute the best modes of practicing the present disclosure presently known to the inventors. The figures are not necessarily to scale. However, it is to be understood that the disclosed embodiments are merely exemplary of the present disclosure that may be embodied in various and alternative forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for any aspect of the present disclosure and/or as a representative basis for teaching one skilled in the art to variously employ the present disclosure.
Except in the examples, or where otherwise expressly indicated, all numerical quantities in this description indicating amounts of material or conditions of reaction and/or use are to be understood as modified by the word “about” in describing the broadest scope of the present disclosure. Practice within the numerical limits stated is generally preferred. Also, unless expressly stated to the contrary: percent, “parts of,” and ratio values are by weight; the description of a group or class of materials as suitable or preferred for a given purpose in connection with the present disclosure implies that mixtures of any two or more of the members of the group or class are equally suitable or preferred; the first definition of an acronym or other abbreviation applies to all subsequent uses herein of the same abbreviation and applies to normal grammatical variations of the initially defined abbreviation; and, unless expressly stated to the contrary, measurement of a property is determined by the same technique as previously or later referenced for the same property.
It is also to be understood that this present disclosure is not limited to the specific embodiments and methods described below, as specific components and/or conditions may, of course, vary. Furthermore, the terminology used herein is used only for the purpose of describing particular embodiments of the present disclosure and is not intended to be limiting in any way.
It must also be noted that, as used in the specification and the appended claims, the singular form “a,” “an,” and “the” comprise plural referents unless the context clearly indicates otherwise. For example, reference to a component in the singular is intended to comprise a plurality of components.
The term “comprising” is synonymous with “including,” “having,” “containing,” or “characterized by.” These terms are inclusive and open-ended and do not exclude additional, un-recited elements or method steps.
The phrase “consisting of” excludes any element, step, or ingredient not specified in the claim. When this phrase appears in a clause of the body of a claim, rather than immediately following the preamble, it limits only the element set forth in that clause; other elements are not excluded from the claim as a whole.
The phrase “consisting essentially of” limits the scope of a claim to the specified materials or steps, plus those that do not materially affect the basic and novel characteristic(s) of the claimed subject matter.
The terms “comprising”, “consisting of”, and “consisting essentially of” can be alternatively used. Where one of these three terms is used, the presently disclosed and claimed subject matter can include the use of either of the other two terms.
Throughout this application, where publications are referenced, the disclosures of these publications in their entireties are hereby incorporated by reference into this application to more fully describe the state of the art to which this present disclosure pertains.
Referring first to
A conductive insert 162 is provided within the housing 112 wherein the conductive insert 162 contains orthogonally arranged longitudinal and transverse threaded bores 191, 192, 193, 194 wherein first and second bores 190, 192 are defined at a first end of the insert 162 and the third and fourth bores 193, 194 are defined at a second end of the conductive insert 162.
Retainers 140 formed of a suitable non-conductive material may also be provided wherein the retainers 140 are arranged concentrically within each threaded opening 114, 116, 124, 126. In the example provided in
In
In the initial condition illustrated in
With respect to the various embodiments of the present disclosure, the housing 12 contains conductive insert 14 which is rigidly supported in the longitudinal passage 16 by non-conductive retainers 41, 41′, 43, 43′. (See
The housing 12 may be cast from a conductive metal, such as aluminum, and contains at a first end of the housing 12 a pair of orthogonally arranged threaded identical ports (first port 18 and second port 20) that are in fluid communication with each other via first insert bore 34 and second insert bore 35. Similarly, at a second end 32 of the housing 12, the third port 22 and fourth port 24 may also be orthogonally arranged threaded identical ports which also communicate with each other via third insert bore 36 and fourth insert bore 36. The first end 44 of the conductive insert 14 is in electric communication with the second end 46 of the conductive insert 14 due to the conductive nature of material used to form the conductive insert 14.
The various embodiments of the splice block connector 10, 10′ of the present disclosure also includes a first conductive plug 26 and a second conductive plug 28. As shown in
As shown in the first example splice block connector 10 of the present disclosure (
As shown in the first example in
In yet another example shown in
A second conductive plug 28 may also be provided wherein the second conductive plug 28 (like the first conductive plug 26) may include a dust cap 50, an insulator 54, and a pin 56. (See
In another example, as shown in
It is understood that the plugs 26, 26′, 28, 28′ and cables 42, 42′ are interchangeable. Therefore, upon removal of the second conducting plug 28, 28′ from third port 22 (shown in
Therefore, with respect to one embodiment of the present disclosure, the first conductive plug 26 and/or second conductive plug 28 may include a pin 56 which is formed of conductive material which is supported by the insulator 54. It is also understood that the first conductive plug 26 and/or second conductive plug 28 may alternately include an insulating pin 52 as previously described. Thus, the first and/or second conductive plugs 26, 28 may have the same or different constructions: (1) dust cap 50 with insulating pin 52; or (2) dust cap 50, insulator 54 and pin 56 arrangement.
With respect to all embodiments of the present disclosure, a first seal 86 and a second seal 88 may be also be provided between the corresponding conductive plug 26, 28 and the housing 12 as shown in
In the illustrated condition of
The various modifications of the present invention offer several important advantages. First, the connector 10, 10′ is adapted to accept standard cable of various sizes. The cable connections may be in-line, orthogonal, parallel, or a combination thereof suitable for strand, pedestal or underground mounting. Complete installation of the amplifiers, splitters, tap offs, etc. is accomplished without exposing the circuitry to the environment, and the circuitry may be removed or replaced without disturbing the cable installation. A further advantage of the invention is that an operator, merely by using a conventional wrench, can readily open, loosen or tighten connection between a center conductor 40 of a cable and the housing 12. An operator may also easily relocate the angular relationship between the first and second cables 42, 42′ using a conventional wrench. By the use of the right-angle seizing arrangement between the (first and/or second) conductive plug 26, 28 and a center conductor 40, 40′ of a cable 42, 42′, the cables 42, 42′ can be connected to the rear of the amplifier housing 12, thus permitting closer clearance to phone lines and visible access for using the test probe on the sides of the amplifier. Other modifications may be made in the described apparatus without deviating from the inventive concepts as set forth above.
While example, non-limiting embodiments have been presented in the foregoing detailed description, it should be appreciated that a vast number of variations exist. It should also be appreciated that the exemplary embodiment or exemplary embodiments are only examples, and are not intended to limit the scope, applicability, or configuration of the disclosure in any way. Rather, the foregoing detailed description will provide those skilled in the art with a convenient road map for implementing the exemplary embodiment or exemplary embodiments. It should be understood that various changes can be made in the function and arrangement of elements without departing from the scope of the disclosure as set forth in the appended claims and the legal equivalents thereof.
This nonprovisional application claims the benefit of U.S. Provisional Application No. 63/216,156, filed Jun. 29, 2021. The disclosure of the prior application is hereby incorporated by reference herein in its entirety.
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Number | Date | Country | |
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20220416472 A1 | Dec 2022 | US |
Number | Date | Country | |
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63216156 | Jun 2021 | US |