Electrical connectors – Contact comprising cutter – Insulation cutter
Reexamination Certificate
2003-04-08
2004-09-07
Pauman, Gary (Department: 2833)
Electrical connectors
Contact comprising cutter
Insulation cutter
C439S578000
Reexamination Certificate
active
06786757
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to electrical connectors and, more specifically, to RJ type connectors for connection of broadband coaxial cables.
2. Background Art
Broadband coaxial cables and coaxial cable connectors are commonly used for connecting an RF signal source to an RF signal receiver. Some common RF signal sources/receivers include television and audio receivers, amplifiers, decoders, satellite receivers, VCRs, DVD players, cable modems and other data devices for broadband, and voice transceivers.
Prior art coaxial connectors include a female-type screw-on type connector or a female-type plug-on type connector which can be connected to a male-type connector. More specifically, the screw-on type connector includes a female receptacle having an internally threaded bore configured to threadedly mate with external threads of a male coaxial connector connected to, for example, an electronic product or the terminal end of a coaxial cable. A problem with the screw-on type coaxial connector is that the relative inflexible coaxial cable makes the screw-on type connector difficult to align and threadedly mate. The plug-on type coaxial connector includes a female receptacle having an inside diameter configured to frictionally interact with the external threads of a male coaxial connector. While the plug-on type coaxial connector is much easier to attach than the screw-on type coaxial connector, the plug-on type coaxial connector can be separated from the male coaxial connector simply by pulling the coaxial cable or the female receptacle from the male coaxial connector.
It is, therefore, an object of the present invention to overcome the above problems and others by providing a coaxial cable connector which can be utilized to easily connect and disconnect a pair of coaxial cables or connect a coaxial cable and a printed circuit board (PCB) while providing electromagnetic shielding of a signal conveyed on the core of the coaxial cable(s). Still other objects of the present invention will become apparent to those of ordinary skill in the art upon reading and understanding the following detailed description.
SUMMARY OF THE INVENTION
Accordingly, I have invented a coaxial cable connector comprising an RJ type male plug having a first cavity and a second cavity. A first conductor is received in the RJ type male plug with the first conductor having adjacent the first end thereof a first section received within the first cavity of the RJ type male plug. The first conductor also has adjacent a second end thereof a second section received within the second cavity of the RJ type male plug. The part of the RJ type male plug surrounding at least part of the first cavity has the form of a first fastener type. The first section of the first conductor is configured to electrically contact a central conductor of a first coaxial cable when the first coaxial cable is mated with the RJ type male plug via the first fastener type.
Preferably, the first section of the first conductor is in the form of a pin having a proximal end secured to the RJ type male plug and a distal end received in the first cavity of the RJ type male plug. The second section of the first conductor is preferably in the form of a clip having a proximal end connected to the proximal end of the pin and secured to the RJ type male plug, and a distal end received in the second cavity of the RJ type male plug and configured to expand and receive the central conductor of the first coaxial cable when the first coaxial cable is mated with the RJ type male plug via the first fastener type.
A first shield covers at least part of the first cavity of the RJ type male plug. The first shield is electrically isolated from the first conductor. The first shield is configured to electrically contact a shield of the first coaxial cable when the first coaxial cable is mated with the RJ type male plug via the first fastener type.
The coaxial cable connector can also or alternatively include an RJ type female housing having a first cavity and a second cavity. A second conductor is received in the RJ type female housing, with the second conductor having adjacent a first end thereof a first section received within the first cavity of the RJ type female housing. The second conductor also has adjacent a second end thereof a second section received within the second cavity of the RJ type female housing. The part of the RJ type female housing surrounding at least part of the first cavity has the form of a second fastener type. The first section of the second conductor is configured to be electrically connected with a central conductor of a second coaxial cable when the second coaxial cable is mated with the RJ type female housing via the second fastener type. The RJ type male plug adjacent the second cavity thereof is configured to be received in the second cavity of the RJ type female housing with the second end of the first conductor electrically contacting the second end of the second conductor.
Preferably, the first section of the second conductor is in the form of an elongated pin having a proximal end secured to the RJ type female housing and a distal end received in the first cavity of the RJ type female housing. The second section of the second conductor is preferably in the form of a clip having a proximal end connected to the proximal end of the elongated pin and secured to the RJ type female housing, and a distal end received in the second cavity of the RJ type female housing.
A second shield covers at least part of the first cavity of the RJ type female housing. The second shield is electrically isolated from the second conductor. The second shield is configured to be electrically connected with a shield of the second coaxial cable when the second coaxial cable is mated with the RJ type female housing via the second fastener type. The first shield of the first coaxial cable and the second shield of the second coaxial cable are electrically connected when the RJ type male plug adjacent the second cavity thereof is received in the second cavity of the RJ type female housing.
Preferably, the first fastener type has one of external male threads and internal female threads and the second fastener type has the other of internal female threads and external male threads. The second fastener type is preferably rotatable relative to the remainder of the RJ type female housing.
I have also invented a coaxial cable connector including an RJ type plug body having a first cavity configured to receive a first coaxial cable therein and a second cavity. A first conductor has a first end secured in the RJ type plug body and a second end received within the second cavity of the RJ type plug body. The first conductor has a bore which extends from the first end toward the second end of the first conductor. The bore is in communication with the first cavity and is configured to receive a central conductor of the first coaxial cable when the first coaxial cable is received in the first cavity.
A first shield covers at least part of the first cavity of the RJ type plug body. The first shield is electrically isolated from the first conductor. The first shield is configured to electrically contact a shield of the first coaxial cable when the first coaxial cable is received in the first cavity.
An RJ type housing body can also or alternatively be provided including a second conductor secured in the RJ type housing body with one end of the second conductor received in a cavity of the RJ type housing body. The cavity of the RJ type housing body is configured to receive therein the end of the RJ type plug body adjacent the second cavity thereof. The second conductor adjacent the one end thereof is configured to electrically contact the first conductor adjacent the second end thereof when the RJ type plug body adjacent the second cavity is received in the cavity of the RJ type housing body.
A second shield can cover at least part of the cavity of the RJ type housing body. The second shield is electrically isolated from
Pauman Gary
Webb Ziesenheim & Logsdon Orkin & Hanson, P.C.
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