Aeronautics and astronautics – Aircraft structure – Passenger or cargo loading or discharging
Reexamination Certificate
1999-08-06
2001-05-22
Jordan, Charles T. (Department: 3644)
Aeronautics and astronautics
Aircraft structure
Passenger or cargo loading or discharging
C244S118100, C244S137100
Reexamination Certificate
active
06234424
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to containers and, more particularly, to containers adapted to be suspended from overhead cables, such as high voltage lines.
2. Description of the Prior Art
It is well known that overhead cables, such as high tension lines or cables used to support cabins of a telpher, must be periodically inspected and sometimes repaired. Accordingly, various nacelles and buckets have been developed for supporting equipment or operators on overhead or elevated cables, such as high tension lines.
For instance U.S. Pat. No. 5,328,133 issued on Jul. 12, 1994 to Charest et al. discloses a nacelle removably mounted at one end of a support extending laterally outwardly from a helicopter. The nacelle is provided on either sides thereof with suspension wheels which can be pivoted inwardly to ride on a pair of overhead cables once the nacelle has been properly positioned thereunder by means of the helicopter.
Canadian Patent laid-open application No. 2,055,639 filed on Nov. 15, 1991 in the names of De Forges de Parny et al., discloses a nacelle adapted to be positioned between a pair of overhead cables. The nacelle is provided on either side thereof with support members defining respective inverted channels adapted to receive a subjacent length of cable when the nacelle is lowered to a suspended position between the cables by means of a helicopter to which the nacelle is attached via a plurality of rope slings depending downwardly from the helicopter.
Although the nacelles described in the above-mentioned patents are effective for supporting operators on elevated high voltage lines, it has been found that there is a need for a simpler basket construction which is specifically designed for supporting equipment between a pair of overhead cables.
SUMMARY OF THE INVENTION
It is therefore an aim of the present invention to provide a helicopter carried basket to be placed and suspended between a pair of laterally spaced-apart elevated cables;
It is also an aim of the present invention to provide such a basket which is relatively simple and economical to manufacture.
It is a further aim of the present invention to provide such a basket which can be easily installed in position between the cables and removed therefrom when required.
Therefore, in accordance with the present invention, there is provided a basket for supporting equipment between a pair of laterally spaced-apart parallel overhead cables, comprising a main body defining a receiving cavity and being sized to be insertable between the overhead cables, carrying means releasably engageable with a helicopter arm for allowing the basket to be selectively transported to and away from the overhead cables, and at least one hanger extending laterally outwardly from the main body for resting on subjacent portions of both overhead cables once the main body has been lowered to a suspended position between the overhead cables.
According to a further general aspect of the present invention, there is provided a basket for supporting equipment between a pair of laterally spaced-apart parallel overhead cables in combination with a support arm extending laterally outwardly from a helicopter. The basket comprises a main body defining a receiving cavity and being adapted to be inserted between the overhead cables, a carrying member by which the main body is portable by the support arm for allowing the basket to be selectively positioned between the overhead cables and removed therefrom via operation of the helicopter, and at least one hanger extending laterally outwardly from the main body for engagement with both overhead cables to rest thereon once the main body has been positioned between the overhead cables, thereby allowing the basket to be held in an upright suspended position between the overhead cables.
REFERENCES:
patent: 3702124 (1972-11-01), Highland
patent: 4113207 (1978-09-01), Dalziel
patent: 4188000 (1980-02-01), Dalziel
patent: 4473011 (1984-09-01), Wuschek
patent: 4564161 (1986-01-01), Frye
patent: 5020742 (1991-06-01), Haslim
patent: 5273239 (1993-12-01), De Parny et al.
patent: 5328133 (1994-07-01), Charest et al.
patent: 2055639 (1992-05-01), None
Carpentier Christian
Charest Marc
Best Christian M.
Jordan Charles T.
Les Hélicoptères Canadiens Limitée
Sofia Michel
Swabey Ogilvy Renault
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