|Publication number||USRE41044 E1|
|Application number||US 11/392,921|
|Publication date||Dec 15, 2009|
|Filing date||Mar 30, 2006|
|Priority date||Nov 13, 2003|
|Also published as||US6776657|
|Publication number||11392921, 392921, US RE41044 E1, US RE41044E1, US-E1-RE41044, USRE41044 E1, USRE41044E1|
|Original Assignee||Ezconn Corporation|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (6), Referenced by (5), Classifications (10), Legal Events (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
1. Field of the Invention
The present invention relates to connectors and more particularly to a connector capable of connecting to a coaxial cable without using a tool (e.g., pliers).
2. Description of Related Art
Connectors for coaxial cable are well known. A conventional F class connector of an electrical device (e.g., TV, radio, or the like) is threadedly coupled to a coaxial cable so that the electrical device is able to receive signals via the cable.
A conventional connector 10 for coaxial cable is shown in
However, the prior art suffered from two disadvantages. The first one is an environmental problem. In detail, the shield of the cable made of soft PVC (polyvinyl chloride) is gradually replaced by one made of hard PE (polyethylene) for environmental protection. As such, it is impossible of connecting the hard shield of the cable to the connector by exerting force by the hand. Typically, a tool is used to compress one end of the cable into the connector. Next, as stated above, a pliers is used to press the shell 11 against the shield of the cable 15 for fastening the connector 10 and the cable 15 together. Such process is tedious. The second one is that the braided outer conductor of the cable 15 may be damaged during the coupling process. As such, it may degrade the signal transmission quality. Hence, a need for improvement exists.
It is an object of the present invention to provide a connector for a coaxial cable including a central conductor, an outer insulator surrounded the central conductor, a braided outer conductor in the form of a cylindrical shell surrounded the outer insulator, and a shield surrounded the outer conductor, the connector comprising an outer sleeve including a front, inwardly extending rim, a front bore section having a first diameter, an intermediate bore section having a second diameter larger than the first diameter for forming a shoulder therebetween, and a rear bore section having a flared opening; an inner sleeve including a front flange, a front, inwardly extending rim flush with the flange, and a rear flared opening; a forward rotatable nut including internal threads for threadedly securing to a mated connector, and including a rear, inwardly extending rim; a hollow, cylindrical coupling including a rear, inwardly extending rim; and a resilient gripping ring including an annular section and a plurality of oblique teeth equally spaced apart around an inner edge thereof, wherein the rim of the nut is rotatably fitted between the outer sleeve and the flange and is sleeved on an intermediate portion of the inner sleeve, the rim of the outer sleeve is sleeved on the flared opening of the inner sleeve with the shoulder being flush with the flared opening of the inner sleeve, the annular section is sandwiched between the rim of the coupling and the flared opening of the rear bore section, and the coupling is sleeved on a rear portion of the outer sleeve; and a front end of the cable is inserted into the coupling and the ring for snugly fitting the outer insulator in a bore of the inner sleeve, the insertion is stopped as a front end of the outer insulator contacts the rim of the inner sleeve and front ends of the outer conductor and the shield contact both the shoulder and an edge of the flared opening of the inner sleeve, the central conductor is inserted into the mated connector for connection, and the teeth exert an inwardly gripping force onto an outer surface of the shield for fastening the front end of the cable in the connector. By utilizing the present invention, it is possible of connecting the connector to the coaxial cable without using a tool.
In one aspect of the present invention, the flared opening of the inner sleeve comprises a sharp edge capable of inserting through the outer conductor into the shield for further fastening the front end of the cable in the connector.
The above and other objects, features and advantages of the present invention will become apparent from the following detailed description taken with the accompanying drawings.
In brief, the connection of the connector and the coaxial cable is done without using a tool. More importantly, the connection is reliable.
While the invention herein disclosed has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US5769662 *||Jul 15, 1996||Jun 23, 1998||Augat Inc.||Snap together coaxial cable connector for use with polyethylene jacketed cable|
|US6425782 *||Nov 16, 2000||Jul 30, 2002||Michael Holland||End connector for coaxial cable|
|US6575784 *||Apr 27, 2000||Jun 10, 2003||Yazaki Corporation||Connector for a shielded wire|
|US6634906 *||Apr 1, 2002||Oct 21, 2003||Min Hwa Yeh||Coaxial connector|
|US6767248 *||Nov 13, 2003||Jul 27, 2004||Chen-Hung Hung||Connector for coaxial cable|
|US6776657 *||Nov 13, 2003||Aug 17, 2004||Chen-Hung Hung||Connector capable of connecting to coaxial cable without using tool|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US8491334||Dec 13, 2011||Jul 23, 2013||Belden Inc.||Connector with deformable compression sleeve|
|US8632360||Apr 25, 2011||Jan 21, 2014||Ppc Broadband, Inc.||Coaxial cable connector having a collapsible portion|
|US8657626||Nov 3, 2011||Feb 25, 2014||Thomas & Betts International, Inc.||Cable connector with retaining element|
|US9531090||Jul 30, 2015||Dec 27, 2016||Corning Optical Communications Rf Llc||Coaxial cable connectors with conductor retaining members|
|US9793624||Dec 22, 2014||Oct 17, 2017||Ppc Broadband, Inc.||Connector having an inner conductor engager|
|U.S. Classification||439/578, 439/439|
|International Classification||H01R13/622, H01R13/58, H01R9/05|
|Cooperative Classification||H01R9/05, H01R13/5812, H01R13/622|
|European Classification||H01R9/05, H01R13/58B4|
|Feb 8, 2012||FPAY||Fee payment|
Year of fee payment: 8
|Dec 2, 2015||FPAY||Fee payment|
Year of fee payment: 12