DESC:FIELD OF INVENTION:
[001] The present invention generally relates to marine navigation equipment. More particularly, the present invention relates to a tool for opening and tightening of the navigation light in the submarine.

BACKGROUND OF THE INVENTION:
[002] The submarine navigation lights are vital components, guiding these vessels through the intricate underwater pathways. These lights, which are mounted on the submarine's exterior surface, serve as beacons, illuminating the submarine's path in the depths of the water.
[003] However, as submarines descend to greater depths, the surrounding water exerts immense pressure on the vessel's surface. Such pressure intensifies as the submarine ventures deep, creating an environment where even the smallest vulnerability could result in catastrophic consequences. The navigation light, being an external fixture, is particularly vulnerable to this pressure. As the submarine dives deeper, the pressure on the light's surface increases exponentially. This increased pressure, particularly when the navigation light comes into close contact with seawater, necessitates unparalleled precision and security in fastening. Any inadequacy in sealing the light could allow water to infiltrate the sensitive internal components, potentially compromising the submarine's safety and functionality.
[004] Traditionally, pin-type, pin wrench and c-clamp tools have been used for the purpose of tightening navigation lights. While these tools serve a basic function, they often lack the precision required to ensure a watertight seal in high-pressure underwater conditions.
[005] The published Japanese patent application JP2014175095A describes a lighting fixture assembly and a method for fitting it. The main objective is to provide a sealed structure for the lighting fixture assembly, improve the accuracy of internal optical components' positioning, maintain high-level water tightness between the lighting fixture assembly and its base, and enable independent removal of the lighting fixture assembly from the base for replacement work. In this prior art, a ship's lamp is attached to a hull using a base that is secured with a screw. An O-ring is installed at the base, and the lighting fixture assembly is mounted on the base. The assembly is fixed to the base in a water-tight state, maintained by the O-ring compressed between the base and the lighting fixture assembly.
[006] The published US patent application US20020167806A1 discusses an assembly to selectively hold, position and provide a stable platform for a light source has malleable legs. The assembly has a pair of clamp members attached to a base. The legs attach to the base and are formed of electrical cable with an elastomeric insulation coating. An extension tube can interconnect the clamp member to the malleable, bendable leg portion to further increase the range of the flexible leg stand.
[007] The afore-mentioned prior arts may not be suitable for the unique requirements of submarine navigation lights, which face significantly higher-pressure levels in deep-sea environments. The prior art does not appear to offer a specialized tool designed explicitly for submarine navigation lights.
[008] Therefore, there is a need for a tool designed explicitly for the aforementioned purpose.

OBJECTS OF THE INVENTION:
[009] The object of the present invention is to provide a specialized tool for opening and/or tightening navigation lights on submarines, offering superior stability and precision during the opening and tightening processes.
[010] Another object of the present invention is to enhance the safety of submarines operating in deep-sea environments by ensuring the secure and watertight sealing of navigation lights.

SUMMARY OF THE INVENTION:
[011] According to an aspect of the present invention, a tool for tightening and/or loosening a navigation light is disclosed. The aforesaid tool discloses a plurality of support legs configured to support a circular plate wherein the circular plate along with the plurality of support legs forms a hollow cavity for positioning the navigation light and a pair of handles coupled to the circular plate via a pair of hinges and configured to hold the tool for causing the tool to rotate while tightening and loosening the navigation light. The tool further comprises a plurality of fasteners fixed to the base of the plurality of support legs and on the circular plate. The tip of the plurality of fasteners may be inserted into the navigation light for securing the tool with the navigation light and the tool is thereafter rotated clockwise or anti-clockwise for tightening and/or loosening the navigation light.

[012] In an aspect, the tool (10) may be rotated clockwise or anti-clockwise for tightening and/or loosening the navigation light.

[013] In an aspect, the plurality of fasteners may be inserted into a plurality of holes present at a tightening ring of the navigation light for tightening and/or loosening the navigation light.

[014] In an aspect, the tool may be made from mild steel (MS) material.

[015] In an aspect, the navigation light may be a submarine navigation light.

BRIEF DESCRIPTION OF THE DRAWINGS:
[016] The invention has other advantages and features which will be more readily apparent from the following detailed description of the invention and the appended claims, when taken in conjunction with the accompanying drawings, in which:

[017] Fig. 1 illustrates the tool, according to the present invention.

[018] Fig. 2 illustrates the top views and a side view of the tool, according to the present invention.

[019] Fig. 3 shows an image of a submarine navigation light, according to the present invention.

[020] Fig. 4 shows an image showcasing the submarine navigation light as well as the tool engaged with the submarine navigation light for tightening and/or loosening the submarine navigation light.

DETAILED DESCRIPTION OF THE INVENTION:
[021] While the invention has been disclosed with reference to certain embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt to a particular situation or material to the teachings of the invention without departing from its scope.

[022] Throughout the specification and claims, the following terms take the meanings explicitly associated herein unless the context clearly dictates otherwise. The meaning of "a", "an", and "the" include plural references. The meaning of "in" includes "in" and "on." Referring to the drawings, like numbers indicate like parts throughout the views. Additionally, a reference to the singular includes a reference to the plural unless otherwise stated or inconsistent with the disclosure herein.

[023] The figures and protocols have been represented where appropriate by conventional representations in the drawings, showing only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

[024] The present invention discloses a specialized tool designed for opening and tightening navigation lights on submarines. This tool ensures a secure and watertight seal for navigation lights, even under high-pressure conditions.

[025] As illustrated in Fig. 1, the tool (10) is designed for tightening and opening of navigation lights in submarines. The tool (10) comprises a plurality of support legs (1A, 1B, 1C), a circular plate (2), a plurality of fasteners (3), a pair of handles (4) and a pair of hinges (5). The circular plate (2) is mounted on the plurality of support legs (1A, 1B, 1C) and the plurality of support legs (1A, 1B, 1C) supports the circular plate (2). The pair of handles (4) is coupled to the circular plate (2) via the pair of hinges (5). The circular plate (2) along with the plurality of support legs (1A, 1B, 1C) together forms a hollow cavity where a submarine navigation light may be introduced or positioned for tightening and/or loosening. Further, the pair of handles (4) of tool (10) is configured to hold the tool (10) for causing the tool (10) to rotate while tightening and loosening the navigation light. The tool (10) further comprises the plurality of fasteners (3) fixed to the base of the plurality of support legs (1A, 1B, 1C) and on the circular plate (2).

[026] The tip of the plurality of fasteners (3) may be inserted into the holes which are present on outer body of submarine navigation light. Particularly, the tip of the plurality of fasteners (3) may be inserted into the holes present on the tightening ring (shown in Fig 3) for tightening/ loosening the submarine navigation light. Once inserted, the tool (10) may be rotated with the help of the pair of handles (4) for opening, tightening and/or loosening the submarine navigation light. The tool may be rotated clockwise or anticlockwise for loosening, tightening and/or opening the submarine navigation light. The torque caused due to the act of rotation may be adjusted by a user depending on the extent of tightening/ loosening the submarine navigation light.

[027] In an embodiment, the tip of the plurality of fasteners (3) may be inserted by opening the plurality of fasteners (3) and then aligning the holes of the plurality of support legs (1A, 1B, 1C) with the holes of the tightening ring (310) for securing the tool (10) with the navigation light. In an alternate embodiment, the tip of the plurality of fasteners (3) may be inserted without opening the plurality of fasteners (3) by mere inserting the tip of the plurality of fasteners (3) into the holes of the tightening ring (310) of the navigation light.

[028] In an embodiment, the tool may be rotated anti-clockwise or counter-clock wise for opening the navigation light. Further, the tool may be rotated clockwise for closing and/or tightening the navigation light.

[029] The plurality of fasteners may be bolts, screws, pins and the like. For instance, Fig. 1 depicts fasteners of various sizes like “M12” and “M6”. It is understood that any fastener apart from foresaid sizes may be used depending on the size of a hole while fastening. Further, the "M" denotes a metric thread and "12" and “6” denotes the diameter in mm in the foresaid notation “M12” and “M6”. Such notation is a standard designation which is widely adopted in engineering and/or manufacturing domain and is used universally to describe the dimensions of bolts/ other fasteners and can be construed as a technical specification for the sizes of the bolts/ other fasteners.

[030] Fig. 2 illustrates the top views and a side view of the tool according to the present invention. The top views of the tool show a simple top view and an expanded top view. The handles are not rotated in the left-hand side illustration (also called as the simple top view) whereas the handles are rotated in the right-hand side illustration (also called as the expanded top view). The angle of rotation for the handles may span from 0 degrees to 90 degrees as visualized from the expanded top view. In an alternate embodiment, the angle of rotation for the handles may also span from 0 degrees to 180 degrees. In an embodiment, the plurality of support legs may also rotate with the angle of rotation as 0 degrees to 180 degrees.

[031] In an embodiment, the tool (10) is used for tightening of the submarine navigation lights during maintenance and repair activity.

[032] In an embodiment, the tool (10) is made of MS (Mild Steel) sheet material for withstanding disturbance in the torque or non-even torque while rotating the tool (10).

[033] In an exemplary embodiment, the below-mentioned table shows the dimensions of the components of the tool (10):

Components of tool (10) Dimension (in mm)
Length of each leg (1A, 1B, 1C) 220
Breadth of each leg (1A, 1B, 1C) 25
Thickness of each leg (1A, 1B, 1C) 10
Diameter of circular plate 154
Thickness of circular plate 10
Diameter of handle 12.25
Length of handle 152
Inner width of the frame 12.5
Outer width of the frame 24
Height of the frame 10
Size of fasteners M12, M6

[034] Fig 3 illustrates a schematic view of a submarine navigation light. The submarine navigation light (300) comprises of a tightening ring (310), a seal-flange assembly (320) and a dome-shaped glass (330). The tightening ring (310) comprises of a plurality of holes at the rim of the tightening ring (310) where the tool can be engaged for tightening and/or opening the submarine navigation light (300). The seal-flange assembly (320) may be disposed within the tightening ring (310) for ensuring seal-proof mounting of the submarine navigation light (300). Further, the dome-shaped glass (330) may house or accommodate the submarine navigation light source. The said light source may be an array of light emitting diodes (LEDs), incandescent light bulb or lamp, fluorescent light source or any other light source that emits light in the visible light spectrum such as red, blue and the like.

[035] Fig. 4 shows an image showcasing the submarine navigation light as well as the tool engaged with the submarine navigation light for tightening and/or loosening the submarine navigation light.

[036] Although a particular exemplary embodiment of the invention has been disclosed in detail for illustrative purposes, it will be recognized by those skilled in the art that variations or modifications of the disclosed invention, including the rearrangement in the configurations of the parts, changes in steps and their sequences may be possible. Accordingly, the invention is intended to embrace all such alternatives, modifications, and variations as may fall within the spirit and scope of the present invention.

[037] The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching.

ADVANTAGES OF THE INVENTION:
[038] The present invention provides a tool for tightening and opening of navigation lights in submarine that ensures the secure and watertight sealing of navigation lights, safeguarding sensitive internal components from water ingress.

[039] The present invention provides a tool for tightening and opening of navigation lights in submarine that enhances the safety of operatives involved in submarine maintenance and repair tasks.

[040] The present invention provides a tool for tightening and opening of navigation lights in submarine that reduces repairing time for navigation lights and other instruments on submarines.
,CLAIMS:
1. A tool (10) for tightening and/or loosening a navigation light, said tool (10) comprising:
a plurality of support legs (1A,1B,1C) configured to support a circular plate (2), wherein the circular plate (2) along with the plurality of support legs (1A, 1B, 1C) forms a hollow cavity for positioning the navigation light;
a pair of handles (4) coupled to the circular plate (2) via a pair of hinges (5) and configured to hold the tool (10) for causing the tool (10) to rotate while tightening and loosening the navigation light; and
a plurality of fasteners (3) affixed to a base of the plurality of support legs (1A,1B,1C), wherein tip of the plurality of fasteners (3) is inserted into the navigation light for securing the tool (10) with the navigation light and the tool (10) is thereafter rotated for tightening and/or loosening the navigation light.

2. The tool (10) as claimed in claim 1, wherein the tool (10) is made from mild steel material.

3. The tool (10) as claimed in claim 1, wherein the navigation light is a submarine navigation light.

4. The tool (10) as claimed in claim 1, wherein the plurality of fasteners is inserted into a plurality of holes present at a tightening ring of the navigation light for tightening and/or loosening the navigation light.

5. The tool (10) as claimed in claim 1, wherein the plurality of fasteners (3) is affixed to the base of the plurality of support legs (1A, 1B, 1C) as well as on the circular plate (2) of the tool (10).

6. The tool (10) as claimed in claim 1, wherein the tool (10) is rotated clockwise or anti-clockwise for tightening and/or loosening the navigation light.