Claims:WE CLAIM,
1. An unique tension clamp to hold fibre optic cables for comfortable installation and provides maximum support with minimum data attenuation (loss), the claimed clamp comprises of a body and a wedge wherein
a. the said body comprises of a split ferrule body for holding the said cable, and provided with a shape that is a combination of an arc at the middle and straight at either side with negative inclined groove at regular intervals along its length for supplying correct pressure on the said cable under tension;
b. the said wedge comprising of two ends, first end, second end, and the said first end is attached to the said body by a connecting means wherein the tension on the said connecting means is transferred into correct pressure on the said cable;
c. the said second end of the said wedge, adapted as mounting hook upon wedge movement from the said wedge thereby eliminating the need of additional bale and thus forming a unique wedge design wherein a portion of tension of the said cable is converted to clamping pressure thereby ensuring that installer do not have to do the tightening himself and allows better performance of the claimed clamp.
2. The unique tension clamp as claimed in claim 1 wherein the said body is made up of material comprising of industrial grade plastic with a shape comprising of an arc and a straight line and with a set of negative inclined grooves along its length thereby ensuring maximum tension without cable slipping with minimum data loss.
3. The unique tension clamp as claimed in claim 1 wherein the said wedge is made up of material comprising of industrial grade plastic with a shape comprising of an arc and a straight line thereby ensuring maximum tension without cable slipping and minimum data loss.
4. The unique tension clamp as claimed in claim 1 exhibits unique body and wedge interface by employing single wedge to carry tension of the said cable.
5. The unique tension clamp as claimed in claim 1 exhibits unique body and wedge taper interface that converts the appropriate portion of the tension into the clamping pressure applied on the outer surface of the cable so as to ensure no data loss due to excessive compression as well as no slip of the conductor due to lack of compression.
6. The unique tension clamp as claimed in claim 1 exhibits unique wedge with one end formed as a mounting hook with lock that will prevent release of the hook when it is under tension as well as easy release when tension is not present.
7. The unique tension clamp as claimed in claim 1 exhibits unique design without any loose pieces thereby allowing comfortable installation with minimal installation time.
8. A method for installing overhead fibre optic cable employing the unique tension clamp as claimed in claim 1, wherein the claimed method comprises of
a. disposing the said fibre optic cable on the said body to hold the said cable
b. slidingly engaging the said wedge for securing fixing the cable on to the clamp and to form a mounting hook and
c. Fixing the said mounting hook to an aerial support fixture that is attached of a support structure thereby deploying the said fibre optic cable.

Dated this 2nd day of July 2018

For SICAME INDIA CONNECTORS PVT LTD
By its Patent Agent

Dr.B.Deepa
, Description:Form 2

THE PATENT ACT, 1970
(39 of 1970)
&
THE PATENT RULES, 2003
COMPLETE SPECIFICATION
(See section 10 and rule 13)

“CLAMP FOR ATTACHING OVERHEAD FIBRE OPTIC CABLE”

in the name of SICAME INDIA CONNECTORS PVT LTD an Indian National having address at S.No: 473/1 (Part), # 96, Sirunkundram Village, Chengalpet Taluk, Kanchipuram District-603108, Tamil Nadu, India.

The following specification particularly describes the invention and the manner in which it is to be performed

FIELD OF THE INVENTION:
The present invention relates to a clamp for optic cables. More particularly the present invention relates to an unique tension clamp to hold fibre optic cables for comfortable installation.

BACKGROUND OF THE INVENTION AND PRIOR ART:
A cable clamp is a mechanical device attached to the accessory threads at the rear of a plug or receptacle to support the cable or wire bundle, to provide strain relief and absorb vibration and shock which would otherwise be transmitted by the cable to the contact or wire Crimp area. There are reports available in the literature for the existence various cable clamps.
US 3946467 discloses a clamp for a plastic coated optical fibre comprises a tubular portion which is a fairly close sliding fit on the coated fibre and an axially split portion having at least one resilient axially deformable finger. The dimension across the split section is slightly larger than across the other portion. An axially split sleeve is axially slidable on the clamp, and is freely slidable along the tubular portion on to the slit portion. Sliding of the sleeve on to the slit section deforms the finger into gripping contact with the fibre coating and also expands the sleeve. This provides a "backing up" force and also accommodates variations in diameter of coated fibre. More than one finger can be provided, and serrations or other formations can be provided on the fingers.
US 4447120 discloses a clamp for a fiber optic cable having metal strength members. The strength members are fed through axial slots in the forward end of an inner sleeve of the clamp and are wound helically around the inner sleeve. Thereafter an outer sleeve is crimped around the helically wound portions of the strength members and the inner sleeve to tightly secure the strength members to the sleeve.
US 5835660 discloses an optical fibre clamping device to prevent relative movement between an optical fibre and a tube within which the optical fibre is located, a body part includes a through passageway to receive the optical fibre. The body part includes a first clamp to engage the tube and a second clamp to engage the optical fibre.
US 7711236 discloses a fiber optic cable clamp which includes a sheath grip member and a strength member clamp maintained at a constant axial location with respect to the sheath grip member. The fiber optic cable clamp also includes a cable fiber separator connected to the sheath grip member, the cable fiber separator including a plurality of cable fiber openings and attached to the strength member clamp. The fiber optic cable clamp, when mounted to a fiber optic cable, maintains the relative axial locations of a cable sheath and cable strength member along a fiber optic cable.
However, the available existing clamps suffers various drawbacks which includes complexity of the clamp, need of trained technicians, often slippage of cables, tedious installation and expensive. Further conventional wedge type design has multiple parts such as body, two wedges, bale, which makes the installation uncomfortable and time consuming. Thus, there exist a need in the state of art to develop a novel and unique tension clamp which is devoid of above said drawbacks.

OBJECT OF THE INVENTION:
The main object of the present invention is to develop a novel and unique tension clamp for fibre optic cables.
Another object of the present invention is to develop an unique tension clamp comprises of a only body and a wedge without any additional bale.
Yet another object of the present invention is to develop an unique tension clamp which provides maximum support with minimum data attenuation (loss).
Further object of the present invention is to develop an unique tension clamp which allows easy installation of the cable in the field.

BRIEF DESCRIPTION OF DRAWINGS:
Figure 1 depicts the perspective view of the unique tension clamp of the present invention.

S.No PART NUMBER DESCRIPTION
1 1 The end of the wedge adapted as the mounting hook eliminating the need to additional parts
2 2 Wedge that matches with the body in transferring the tension on the hook into correct pressure on the cable
3 3 Hook for retaining the wedge to the body
4 4 Body with specially designed groove for applying correct pressure on the cable when it is under tension

SUMMARY OF THE INVENTION:

The present invention shall disclose an unique tension clamp to hold fibre optic cables for comfortable installation and provides maximum support with minimum data attenuation (loss). The clamp of the present invention comprises of a body and a wedge. The body comprises of a split ferrule body for holding the cable, and provided with a shape that is a combination of an arc at the middle and straight at either side with negative inclined groove at regular intervals along its length for supplying correct pressure on the said cable under tension. The wedge comprising of two ends, first end, second end, and the first end is attached to the body by a connecting means in which the tension on the connecting means is transferred into correct pressure on the cable. The second end of the wedge is adapted as mounting hook upon wedge movement from the wedge thereby eliminating the need of additional bale and thus forming a unique wedge design. Further a portion of tension of the cable is converted to clamping pressure thereby ensuring that installer do not have to do the tightening himself and allows better performance of the claimed clamp.

DETAILED DESCRIPTION OF THE INVENTION:

The present invention shall relates to a tension clamp for attaching fibre optic cables. This clamp allows easy installation of the cable in the field and ensuring minimum data loss (attenuation).
The clamp consists of a body and a wedge. The wedge is extended and also forms the anchoring provision. The body is designed to ensure correct pressure is applied to the cable to keep the data losses minimum and no slippage of the cable happened in the working range of cable tension. It is designed to have no loose pieces as well as ease of operation, allowing comfortable installation on the pole and allowing the installation time to be kept to a minimum.
The design is unique in the aspect that the anchoring action is through a wedge movement from a single wedge. This design allows better performance of the clamp. The texture on the body and the wedges are specially designed to ensure maximum tension without cable slipping and minimum data loss.
The wedge design converts a portion of the tension of cable to the clamping pressure thereby ensuring that the installer do not have to do the tightening himself.
The tension clamp model of the present invention is next subjected to validation tests for the attenuation and mechanical load carrying capability. The results are as follows:
Table 1: Attensuation and breaking load
SN Change in attenuation at 2 KN Maximum breaking load
1 0.03 2.1
2 0.05 2.3
3 0.05 2.1
4 0.04 2.2
5 0.03 2.5

From the above results it is inferred that the data loss imparted by the clamp is well below the industry requirements at the rated load. Thus the clamp of the present invention ensures maximum tension without cable slipping and minimum data loss.
The inventiveness of the present invention lies in the following:
• Unique design with a single wedge.
• Unique texture allowing maximum tension without slipping and minimum data losses
• The body wedge interface is unique in using a single wedge to carry the tension of the cable.
• The adapted wedge allows it to be used as the hook as well without the need for additional bale.

In one of the preferred embodiment the present invention shall disclose an unique tension clamp to hold fibre optic cables for comfortable installation and provides maximum support with minimum data attenuation (loss). The clamp of the present invention comprises of a body and a wedge. The body comprises of a split ferrule body for holding the cable, and provided with a shape that is a combination of an arc at the middle and straight at either side with negative inclined groove at regular intervals along its length for supplying correct pressure on the said cable under tension. The wedge comprising of two ends, first end, second end, and the first end is attached to the body by a connecting means in which the tension on the connecting means is transferred into correct pressure on the cable. The second end of the wedge is adapted as mounting hook upon wedge movement from the wedge thereby eliminating the need of additional bale and thus forming a unique wedge design. Further a portion of tension of the cable is converted to clamping pressure thereby ensuring that installer do not have to do the tightening himself and allows better performance of the claimed clamp.

According to the invention, the body of the unique tension clamp is made up of material comprising of industrial grade plastic with a shape comprising of an arc and a straight line and with a set of negative inclined grooves along its length thereby ensuring maximum tension without cable slipping with minimum data loss.

As per the invention the wedge of the unique tension clamp is made up of material comprising of industrial grade plastic with a shape comprising of an arc and a straight line thereby ensuring maximum tension without cable slipping and minimum data loss.

In accordance with the invention the unique tension clamp possesses unique body and wedge interface by employing single wedge to carry tension of the said cable.

According to the invention the unique tension clamp possesses unique body and wedge taper interface that converts the appropriate portion of the tension into the clamping pressure applied on the outer surface of the cable so as to ensure no data loss due to excessive compression as well as no slip of the conductor due to lack of compression.

As per the invention, the unique tension clamp possesses unique wedge with one end formed as a mounting hook with lock that will prevent release of the hook when it is under tension as well as easy release when tension is not present.

In accordance with the invention the unique tension clamp possesses unique design without any loose pieces thereby allowing comfortable installation with minimal installation time.

In another preferred embodiment the present invention shall disclose a method for installing overhead fibre optic cable employing the unique tension clamp of the present invention. The method comprises of disposing the fibre optic cable on the body of the clamp to hold the cable, followed by slidingly engaging the wedge of the clamp for securing fixing the cable on to the clamp and to form a mounting hook and finally fixing the mounting hook to an aerial support fixture that is attached of a support structure thereby deploying the fibre optic cable.
Although the invention has now been described in terms of certain preferred embodiments and exemplified with respect thereto, one skilled in art can readily appreciate that various modifications, changes, omissions and substitutions may be made without departing from the spirit thereof. It is intended therefore that the present invention be limited solely by the scope of the following claims.