Electrical connectors – Including or for use with coaxial cable – Having crimpable metallic cable conductor grip
Reexamination Certificate
2001-04-06
2002-11-12
Paumen, Gary (Department: 2838)
Electrical connectors
Including or for use with coaxial cable
Having crimpable metallic cable conductor grip
C439S877000
Reexamination Certificate
active
06478618
ABSTRACT:
BACKGROUND OF THE INVENTION
(1) Field of the Invention
This invention provides a high retention coaxial connector, characterized in that when the connector and the coupling are locked in a final lockup position, the compression of a slotted sleeve and slotted spring results in electromechanical integration by the clamping force created by the spring in the slotted sleeve against the aluminum shield and the central conductor of the coaxiable cable.
(2) Description of the Prior Art
In common cable TV systems, wireless TV systems and Collective Antenna TV system it is common practice to run a matter trunk line to the distributor, wherefrom sub-trunk lines feed to user's terminals, so that at these terminals signals transmitted by the TV emission systems are received. It is at the tail ends of coaxial cables that the trunk line is coupled to a cable connector, and in that manner, assembled to the distributor.
FIG. 1A
illustrates a coaxial connector that is currently in use nowadays. The purpose of the coaxial connector in the main is to secure optimum coupling between the coaxial shield and the connector body, which is prerequisite to the transmission of electric signals. The coaxial connector
100
comprises a connector body
101
, a first coupling sleeve
102
, screwed onto one end of the body
101
, and a second coupling sleeve
103
, screwed unto one end of this first coupling sleeve
102
. The connector body
101
comprises an annular collar
104
, a damper
105
coaxially assembled within the collar
104
, as well as moisture-sealing gasket
106
installed between the internal surface of the body
101
and the terminal end of the collar
104
. A harness
107
is coaxially installed inside the second coupling sleeve
103
, and a contact
108
is coaxially installed inside the harness
107
. A wedge
116
is abutted upon the damper
105
.
As shown in
FIG. 1B
, the damper
105
is executed to be an annular member
110
, with both sides having several protrusion detents
111
, which engages bulging wall
119
on the collar
104
, thereby confining the damper
105
in the collar
104
. Referring to
FIG. 1C
, it will be appreciated that coaxially installed into the second sleeve
103
is a contact
108
of which one end, the contact end
112
, may be coupled with the distributor to consummate electric connection, whereas another end, being the clamp end
113
, is endowed with inner threads
114
in addition to a plurality of grooves
115
.
Structured accordingly, what must be done in the first place as the coaxial connector
100
and the cable
200
are to be assembled together, is to have the loose end of the cable stripped so that outer coating
118
is left naked clear of both the aluminum shield and the core leader
117
. Next, insert the cable
200
thus prepared into the body
101
of the connector, thirdly, combine the body
101
with the first coupling sleeving
102
by intertwining each other, causing the damper
105
by its interiority to tightly wrap the aluminum shield
116
. Fourthly, the body
101
of the connector into which cable
200
has been established is screwed with the second sleeve
102
culminating in having the core leader
117
of the cable inserted into the inner threads
114
of the contact
108
. Structured accordingly, the core leader
117
is compelled to wind up secured by the contact
108
, and electric connection is consummated.
The foregoing assembly is awkward and cumbersome which invariably lowers or restricts working efficiency on the part of the working staff. Moreover, with the interior part of the damper
105
tightly wrapping up the external part of the aluminum shield
116
, in a rigid to rigid encounter, weathering effects or other causes, such as, for example: heat expansion and cold shrinkage, due to climatological change, wind blown vibration, fatigue or material rigidity, can often bring the damper
105
to aluminum shield
116
clamping to lose force, and that eventually will frustrate the good bond between the coaxial shield and the connector body, causing impaired performance of transmission of electric signals, all the more so in dealing with digital transmission services. To prevent that possibility, working technicians on duty will have to clamp tight the connector body
101
against the first coupling sleeve
102
again each year, and then that simply resulting in additional cost expense, and time spent, for that reason it deserves deliberation for other solutions.
In view of the above discussions, the inventor, verily a professional having been engaged in the art for years, had spent time and labor, energy in working for improvement, and has finally brought up this invention, high retention coaxial connector.
SUMMARY OF THE INVENTION
Accordingly, the primary object of the invention is to provide a high retention coaxial connector, with the body of the connector equipped with a first contact spring which will compel the aluminum shield of the cable into electromechanical bonding to thereby assure reliable electric connections.
A further object of the invention is to provide a high retention coaxial connector, in which the body of the connector is internally mounted with a second contact spring which will compel the core leader of the cable that is being worked with into electromechanical integration so as to assure reliable electric conduction.
Referring first of all to
FIG. 2
, a panoramic view of the longitudinal section of the high retention coaxial connector
1
structured according to the invention, it will be seen that the coaxial connector
1
comprises the connector body
10
and a coupling
20
. Referring to
FIG. 3
, it will seen that said connector body
10
of the connector is composed of a body
11
with a container hole
12
therein, the container hole
12
further contains a threaded bore
13
which is coaxial with an annular member
30
, an annular sleeve
40
, an annular collar
50
, and a moisture-sealing gasket
14
.
REFERENCES:
patent: 3320575 (1967-05-01), Brown et al.
patent: 3437982 (1969-04-01), O'Keefe et al.
patent: 4456324 (1984-06-01), Staeger
patent: 5061207 (1991-10-01), Wright
patent: 5548088 (1996-08-01), Gray et al.
Merriam-Webster's Collegiate Dictionary, Tenth Edition, Copyright 1999.
Paumen Gary
Troxell Law Office PLLC
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