Electrical connectors – With contact preventer or retractable cover part – Movably mounted
Reexamination Certificate
1998-11-12
2001-07-17
Reichard, Dean A. (Department: 2833)
Electrical connectors
With contact preventer or retractable cover part
Movably mounted
C439S521000, C174S034000, C174S034000, C174S13800J
Reexamination Certificate
active
06261110
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to a converter for receiving satellite broadcasting, and more particularly, to a converter for receiving satellite broadcasting having a junction impervious to water.
2. Description of the Background Art
A converter for receiving satellite broadcasting attached to a parabolic antenna and provided outdoors has a junction portion for connecting a cable, and water penetrating through the junction could adversely affect the state of receiving broadcasting. Hence, a waterproof cap is fit on the junction having a connector connected thereto, or a tape is wound therearound to prevent water penetration. The manner to wind the tape is complicated, the operation efficiency is low, and if the adhesiveness of the tape deteriorates, the effect of preventing water could be spoiled. Thus, Japanese Patent Laying-Open No. 5-109449 discloses a converter having a water drip wall provided around the outer periphery of the fitting part of a waterproof cap, which provides improved attachability and waterproofness.
FIG. 1
is an exploded perspective view of a conventional converter
51
for receiving satellite broadcasting. Converter
51
is secured to an attaching arm
56
connected to a parabolic antenna which is not shown. At the bottom of converter
51
, a junction portion
52
connecting a high frequency circuit inside and a coaxial cable for external output are provided. Junction portion
52
includes a screw portion
54
provided at a base
53
for engaging a connector and a water drip wall
55
provided concentrically around base
53
. A coaxial cable
58
having a connector
57
coupled at its tip end is inserted through a waterproof cap
59
formed by soft, composite resin, and connector
57
is engaged to screw portion
54
. Then, junction portion
52
and connector
57
are covered with waterproof cap
59
by fitting the opening of waterproof cap
59
through base
53
, such that rainwater may be prevented from penetrating.
In general, as is often the case, an engineer selects such a waterproof cap depending upon the shape of a connector at the tip end of a cable, the kind of the cable or the manner to attach an antenna when the cable is attached. In order to secure a high waterproofing effect, a suitable waterproof cap should be selected. In other words, if a suitable waterproof cap is not selected, water could come into the junction.
The converter for receiving satellite broadcasting described above has a waterproof cap inserted and secured to the cable. As a result, the waterproof cap could come off when the cable is pulled or moved after it is attached, which may allow water to come into the junction portion.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a converter for receiving satellite broadcasting without impairing the working efficiency when a cable is attached and without impairing the waterproofness if the cable is moved.
According to one aspect of the present invention, a converter for receiving satellite broadcasting includes a converter main body, a junction portion provided at the converter main body for connecting an interconnection member, and an extensible/retractable waterproof cover attached to the junction portion.
Since the operator can attach a cable to a converter for receiving satellite broadcasting as the waterproof cover is retracted, the working efficiency is not lowered. Furthermore, since a waterproof cap is attached to the junction portion in an extended state, the movement of the cable does not adversely affect the waterproofness.
The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.
REFERENCES:
patent: 2506979 (1950-05-01), Varnum
patent: 2755449 (1956-07-01), Anderson
patent: 2958845 (1960-11-01), Dupre et al.
patent: 3449706 (1969-06-01), Carissimi
patent: 3750084 (1973-07-01), Gardner
patent: 4173385 (1979-11-01), Fenn et al.
patent: 4400050 (1983-08-01), Hayward
patent: 4540230 (1985-09-01), Iversen et al.
patent: 4545633 (1985-10-01), McGeary
patent: 4734541 (1988-03-01), Moran, Jr.
patent: 4786757 (1988-11-01), Owensby et al.
patent: 4810199 (1989-03-01), Kar
patent: 4869679 (1989-09-01), Szegda
patent: 4913673 (1990-04-01), Kobler
patent: 5208499 (1993-05-01), Barber et al.
patent: 5448254 (1995-09-01), Schneeman et al.
patent: 5631443 (1997-05-01), Scrimpshire et al.
patent: 5667405 (1997-09-01), Holliday
patent: 5877452 (1999-03-01), McConnell
patent: 5975949 (1999-11-01), Holliday et al.
patent: 5984723 (1999-11-01), Wild
patent: 5991597 (1999-11-01), Nagatomi et al.
patent: 1-221087 (1989-09-01), None
patent: 4-368001 (1992-12-01), None
patent: 5-109449 (1993-04-01), None
patent: 9-007703 (1997-01-01), None
Nino Adolfo
Nixon & Vanderhye P.C.
Reichard Dean A.
Sharp Kabushiki Kaisha
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