DESC:FIELD

The present disclosure relates to the field of passive amplifiers. More particularly, the present disclosure relates to a paper-based sound amplifier which amplifies the sound output from a speaker.

DEFINITIONS

As used in the present disclosure, the following terms are generally intended to have the meaning as set forth below, except to the extent that the context in which they are used indicate otherwise.

The expression ‘Folding Boxboard’ used hereinafter in the specification refers to
a paperboard grade made up of multiple layers of chemical and mechanical pulp.

The expression ‘GSM’ used hereinafter in the specification refers to a unit of measurement of paper density in Grams per Square Meter. Higher the value of GSM, higher will be the thickness of the paper.

The expression ‘Metalized PET’ used hereinafter in the specification refers to a
polyethylene terephthalate polymer film coated with a thin layer of metal, usually aluminum .
These definitions are in addition to those expressed in the art.

BACKGROUND

Typically, a passive sound amplifier is used to increase an amplitude of sound
wave output from a speaker. The conventional passive sound amplifier is made of wood, bamboo and various metals. However, the conventional passive sound amplifiers are not collapsible and cannot be machine pasted.

There is, therefore, felt a need for an apparatus for passive sound amplification that alleviates the aforementioned drawbacks of the conventional passive sound amplifier.

SUMMARY OF THE INVENTION

An apparatus for passive sound amplification (100) is disclosed. The apparatus (100) has top compartment (102) and a bottom compartment (104) having flaps (112), wherein the top compartment (102) is interconnected with the bottom compartment (104) to form two continuous wedge-shaped compartments and the bottom compartment is advantageously tapered towards a rear portion in an erected position. There are a plurality of crease lines (108) on outer surface of each side of the top compartment (102) and the bottom compartment (104). There are plurality of crease lines (108) that bisect each of the angles of the top compartment (102) and the bottom compartment (104) and that advantageously facilitate folding of the apparatus (100). The top compartment (102) has a first edge (110) and an angle 'A' that is subtended by the first edge (110) of the top compartment (102) at an apex (114) of the apparatus (100). The angle 'A' is 25 degrees. The bottom compartment (104) has a first edge (116) and angle 'B' is subtended by the first edge (110) of the bottom compartment at the apex (114) of the apparatus (100). The angle 'B' is 25 degrees. An angle 'C' is subtended by the first edge of (110) of the top compartment (102) and the first edge (116) of the bottom compartment (104) at the apex (114) of the apparatus (100) and the angle 'C' is 50 degrees.

OBJECTS

Some of the objects of the present disclosure, which one embodiment herein satisfies, are as follows:

An object of the present disclosure is to provide an apparatus for passive sound amplification.

Another object of the present disclosure is to provide an apparatus for passive
sound amplification which is collapsible.

Yet another object of the present disclosure is to an apparatus for passive sound amplification which provides successive constructive interference of sound
waves.

Still another object of the present disclosure is to provide an apparatus for passive sound amplification which is machine pasted.

Other objects and advantages of the present disclosure will be more apparent from the following description, which is not intended to limit the scope of the
present disclosure.

STATEMENT OF THE INVENTION

An apparatus for passive amplification of sound having two compartments that are folded converted into sound amplifying wedge-shaped compartments for mobile devices.

BRIEF DESCRIPTION OF ACCOMPANYING DRAWING

An apparatus for passive sound amplification of the present disclosure will now be described with the help of the accompanying drawing, in which:

FIGURE 1 illustrates an isometric view of an apparatus for passive sound amplification in an erected position, in accordance with an embodiment of the present disclosure;

FIGURE 2 illustrates an isometric view of an apparatus for passive sound
amplification in an erected position with flaps open, in accordance with an embodiment of the present disclosure;
FIGURE 3 illustrates an isometric view of an apparatus for passive sound amplification in a folded condition, in accordance with an embodiment of the present disclosure;
FIGURE 4 illustrates an isometric view of an apparatus for passive sound amplification in closed position, in accordance with an alternative embodiment of the present invention;
FIGURES 5-8 illustrate isometric views that represent steps in formation of the apparatus for passive sound amplification, in accordance with the alternative embodiment of the present invention;
Other features of the present embodiments will be apparent from the accompanying drawings and from the detailed description that follows. Further, the drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way.

LIST OF REFERENCE NUMERALS

100 – Apparatus
102 – Top Compartment 104 – Bottom Compartment
106 – Rear Portion of Top Compartment
108 – Plurality of Crease Lines
110 – First Edge of Top Compartment 112 – Flaps
114 – Apex
116 – First Edge of Bottom Compartment
118 – Second Edge of Top Compartment 120 – Second Edge of Bottom Compartment
200 – Apparatus In Accordance with Alternative Embodiment
202 – Middle portion
204 – Perforated Lines for Removal of the Middle Portion
206 – First Compartment
208 – Second Compartment
210 – Top Portion of the First Compartment
212 – Cutting Lines for Removal of Top portion of the First compartment
214 – Top portion of the Second Compartment
216 – Cutting Lines for Removal of Top portion of the Second compartment
218 – Profiled Cut Portion
218 – Flap Portion
220 – Central Folding Line
222 – Crease Lines on the First Compartment
224 – Crease Lines on the Second Compartment
226 – Perforated Lines for Forming Flap
228 – Flap
DETAILED DESCRIPTION
In accordance with the present disclosure, an apparatus for passive sound amplification is envisaged that provides passive sound amplification.
In accordance with an embodiment of the present disclosure, an apparatus for passive sound amplification (100) (hereinafter referred as “apparatus (100)”) is configured to passively amplify the sound output of a mobile device. In an embodiment, the apparatus (100) is made of a paperboard. In another embodiment, the apparatus (100) is made of paperboard which is a foldable boxboard (FBB) of DIN standard 19303 with GSM ranging between 300-400 GSMs.

FIGURE 1 illustrates an isometric view of an apparatus for passive sound amplification in an erected position, in accordance with an embodiment of the present disclosure. FIGURE 2 illustrates an isometric view of an apparatus for passive sound amplification in an erected position with flaps open, in accordance with an embodiment of the present disclosure. The apparatus (100) may include a top compartment (102), a bottom compartment (104) and flaps (112). The top compartment (102) and the bottom compartment (104) of the apparatus (100) may be two interconnected continuous wedge shape compartments. The top compartment (102) and the bottom compartment (104) of the apparatus (100) may be adapted to taper towards a rear portion when the apparatus (100) is in the erected position.
In fully erected position, the angle “A” subtended by a first edge (110) of the top compartment (102) at an apex (114) is 25 degrees. The angle “B” subtended by a first edge (116) of the bottom compartment (104) at the apex (114) is also degrees. The angle “C” subtended by the first edge (110) of the top compartment (102) and the first edge (116) of the bottom compartment (104) at the apex (114) is 50 degrees. The inner surface area of the top compartment (102) and the bottom compartment (104) are laminated with a metalized PET (METPET). The laminated inner surface area of the top compartment (102) and the bottom compartment (104) and an arrangement of the aforementioned angles may be configured to facilitate minimum sound absorption. Further, the flaps (112) may be provided at the first edge (110) of the top compartment (102), the first edge (116) of the bottom compartment (104), a second edge (118) of the top compartment (102) and a second edge (120) of the bottom compartment (104). A plurality of crease lines (108) may be provided on the outer surface of each side of the top compartment (102) and the bottom compartment (104). The crease lines (108) bisects each of the angles of the top compartment (102) and the bottom compartment (104). The crease lines (108) facilitates folding of the apparatus (100). A slot (not shown in the Figure 1 and Figure 2) is present between the top compartment (102) and the bottom compartment (104).

In Figure 2, the mobile device may be inserted in the top compartment (102) in such a way that a speaker portion of the mobile device is rested at a rear portion
(106) of top compartment (102) wherein most of the sound waves from the speaker of the mobile device travels from the top compartment (102) to the bottom compartment (104) via the slot. The bottom compartment (104) of the apparatus (100) may be configured to fold along the crease lines (108) due to the self-weight of the mobile device. To avoid such condition, the flaps (112) may be configured to bend at an angle of 90 degrees with respect to the first edge (110) of the top compartment (102), the first edge (116) of the bottom compartment
(104), the second edge (118) of the top compartment (102) and the second edge
(120) of the bottom compartment (104).
The flaps (112) may be further configured to avoid folding of the top compartment (102) and the bottom compartment (104) along the crease lines (110).
The inner surface area of the top compartment (102) and the bottom compartment
(104) may be configured to facilitate minimum absorption of sound output from the speaker of the mobile device. Further the inner surface area of the top compartment (102) and the bottom compartment (104) may be configured to provide constructive interference of the sound waves from the speaker of the mobile, thereby providing successful passive sound amplification. In an
embodiment, the inner surface area of the top compartment (102) and the bottom compartment (104) may be configured to increase the sound output by 80-100%.
FIGURE 3 illustrates an isometric view of an apparatus for passive sound amplification in a folded condition, in accordance with an embodiment of the present disclosure. The apparatus (100) may be configured to fold along the crease lines (108).
Referring to FIGURE 4, in accordance with an alternative embodiment of the present disclosure, an apparatus for passive sound amplification (200) (hereinafter also referred as “apparatus (200)”) is configured to passively amplify the sound output of a mobile device.

FIGURE 4 illustrates an isometric view of the alternative apparatus (200) for passive sound amplification in an unformed condition. The apparatus (200) is a box in a flat unformed condition that is converted into an apparatus for passive sound amplification (200).

FIGURES 5-8 illustrate isometric views that represent steps in formation of an apparatus for passive sound amplification (200) in an erected position, in accordance with the alternative embodiment of the present disclosure. The apparatus (200) in an unformed condition has middle portion (202) that is defined with perforated lines (204). The middle portion (202) separates a first compartment (206) and a second compartment (208). The first compartment (206) has a top portion (210). A cutting line (212) separates the top portion (210) from the first compartment (206). The second compartment also has a top portion (214). A cutting line (216) separates the top portion (214) from the second compartment (208). The first compartment (206) has a profiled cut portion (218) and the second compartment has flap portion (220). The profiled cut portion (218) and the flap portion (22) together form the locking mechanism for the apparatus (200). The flap portion has perforated lines (222). The flap portion is teared along the perforated lines (222) to form a flap (224). The flap (224) is folded and locked onto the profiled cut portion (218) when the apparatus for the passive amplification (200) is formed in accordance with the alternative embodiment.

Referring to Figures 4-6, the middle portion (202) of the apparatus (200) is teared apart along perforated lines (204). The removal of the middle portion (202) exposes the central folding line (226). The first compartment (206) is cut along the cutting lines (212) and the top portion (210) of the first compartment (206) is removed from the first compartment (206). The second compartment (208) is cut along the cutting lines (216) and the top portion (214) of the second compartment (208) is removed from the second compartment (208).The first compartment (206) and the bottom compartment (208) of the apparatus (200) preferably form two interconnected continuous wedge-shaped compartments. The first compartment (206) and the second compartment (208) of the apparatus (200) is preferably advantageously adapted to taper towards a rear portion when the apparatus (200) is erected and formed.

Referring to Figures 7 and 8, the apparatus (200) that is in a flat unformed condition is folded along the central folding line (226). The first compartment (206) and the second compartment are creased along the crease lines (228) and (230) to form two interconnected continuous wedge-shaped compartments that preferably taper towards the rear portion when the apparatus is erected and formed and compartment openings (232) and (234) are defined. The apparatus thus formed has a bottom tip (236). All the crease lines (228) and (230) converge at the bottom tip (236). An angle ‘X’ is subtended by crease lines (228) of the first compartment (206) at the bottom tip (236). The subtended angle ‘X’ of the first compartment is (206) is 25 degrees. An angle ‘Y’ is subtended by crease lines (230) of the first compartment (208) at the bottom tip (236). The subtended angle ‘Y’ of the first compartment is (206) is 25 degrees.

In operation, a mobile device, such as, for example, a smartphone, is inserted in wedge-shaped first compartment (206). The wedge shape of the first compartment advantageously restricts the movement of the mobile device. When the apparatus (200) is erected a narrow hollow passage is created between the first compartment (206) and (208) is defined. The sound of the mobile device travel from the first compartment (206) to the second compartment (208) and is amplified in the second compartment (208).

Although the present invention as described particularly with reference to Figures 1-8, it will be apparent to one skilled in the art that the present invention has utility for art exceeding that disclosed in the Figures. It is contemplated that many changes and modifications may be made by one of ordinary skill in the art, without departing from the spirit and scope of the invention as disclosed above.

TECHNICAL ADVANCES AND ECONOMICAL SIGNIFICANCE

The present disclosure described herein above has several technical advantages
including, but not limited to, the realization of an apparatus for passive sound amplification, that:

• provides passive sound amplification;
• is collapsible;
• provides minimal absorption;
• provides successive constructive interference of sound waves; and
• is machine pasted.

The foregoing description of the specific embodiments so fully reveals the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific
embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.

Throughout this specification the word “comprise”, or variations such as
“comprises” or “comprising”, will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.

The use of the expression “at least” or “at least one” suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results.

Any discussion of documents, acts, materials, devices, articles or the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters form a part of the prior art base or were common general knowledge in the field relevant to the disclosure as it existed anywhere before the priority date of this application.

While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.

,CLAIMS:We Claim:
1. What is claimed is an apparatus for passive sound amplification (100), comprising:
a top compartment (102) and a bottom compartment (104) having flaps (112), wherein the top compartment (102) is interconnected with the bottom compartment (104) to form two continuous wedge-shaped compartments and the bottom compartment is advantageously tapered towards a rear portion in an erected position;
a plurality of crease lines (108) on outer surface of each side of the top compartment (102) and the bottom compartment (104) that bisect each of the angles of the top compartment (102) and the bottom compartment (104) and that advantageously facilitate folding of the apparatus (100);
the top compartment (102) has a first edge (110) and an angle 'A' is subtended by the first edge (110) of the top compartment (102) at an apex (114) of the apparatus (100) and the angle 'A' is 25 degrees;
the bottom compartment (104) has a first edge (116) and angle 'B' is subtended by the first edge (110) of the bottom compartment at the apex (114) of the apparatus (100) and the angle 'B' is 25 degrees;
an angle 'C' is subtended by the first edge of (110) of the top compartment (102) and the first edge (116) of the bottom compartment (104) at the apex (114) of the apparatus (100) and the angle 'C' is 50 degrees.
2. An apparatus for passive sound amplification (200), comprising:
a middle portion (202) that is defined by creased lines (204) that allows the middle portion (202) to be teared apart and expose a central folding line (226) that advantageously facilitates folding of the apparatus and that separates a first compartment (206) and a second compartment (208) of the apparatus (200) in a flat condition;
the first compartment (202) has a profiled cut section (218) and a cutting line (212) that separates a top portion (214) from the first compartment (206) and the second compartment (208) has flap portion (220) having perforated lines (222) and a cutting line (222) that separates a top portion (214) from the second compartment (222);
a plurality of creasing lines (228) of the first compartment (206) that advantageously allows the first compartment (207) to be creased into a wedge shape and a plurality of creasing lines (230) of the second compartment (208) that allows the second compartment (208) to be creased into a wedge shape such that both converge at a bottom tip (236); and
an angle ‘X’ that is subtended at 25 degrees by crease lines (228) of the first compartment (206) at the bottom tip (236) to define an opening (232) and an angle ‘Y’ that is subtended at 25 degrees by crease lines (230) of the first compartment (208) at the bottom tip (236) to define opening (234).