Improvements to whistles or improvements related to whistles

Abstract

Figure 1 shows a whistle (1) with a commonly known external shape, substantially identical to the shape of the applicant company's ACME210 1 / 2 whistle. However, the outward appearance of whistle (1) is substantially very different from the known ACME210 1 / 2 whistle, and the internal structure is also very different. Whistle (1) has a polycarbonate frame or structure (2) to which an elastomer material cover or coating (3) (such as neoprene rubber) is injection molded. Structure (2) comprises upper and lower polycarbonate components assembled together before the coating (3) is applied. The portion of the internal structure (2) remains exposed in the finished whistle (1).

Description

Technical Field

[0001] The present invention relates to improvements in or relating to whistles, and more particularly, but not limited to, dog whistles.

Background Art

[0002] The applicant is a very well-known first-class company and has extensive knowledge regarding whistle manufacturing over a fairly long period of more than 150 years. However, the inventors still recognize that all operating parameters for generating an optimized design may not be maximized and that there are still a number of problems associated with existing designs and their manufacture, which tend to be overcome or mitigated.

[0003] The applicant has addressed some of the problems associated with the design of dog whistles in the patent specification of European Patent No. 0930605, the content of which is incorporated by reference to the reader. In this patent specification, the inventors recognize the importance of the shape and dimensions of the sound chamber in order to avoid interruptions in the whistle sound while limiting the frequency change when the blowing pressure varies within a narrow frequency band.

[0004] Nevertheless, these whistles (and the same evolved versions) still tend to face problems where solutions are lacking for a very considerable period of time in many cases.

[0005] As described in the specification of European Patent No. 0930605, the dog whistle is constructed from two parts so that the sound chamber and mouthpiece are formed together by ultrasonic welding. The design requires that a peg formed in one part fits into a receiving hole in the other part to connect the parts together. A disadvantage is that a small gap in the weld line between the two parts along the sound chamber can provide an outlet for the air blown into the sound chamber. When the whistle is blown, any air that comes in or escapes from the weld line along the sound chamber can produce secondary sounds, which could confuse the dog when it is listening to the whistle command. This is because these secondary sounds can be perceived by one dog as belonging to another whistle. These secondary sounds are usually in the form of a "shhh" sound produced along with the basic sound of the whistle. Furthermore, such secondary sounds can be produced in either event by air passing through the air holes at or on the corners of the cut or split edges.

[0006] Therefore, the sound chamber of current dog whistles tends to have the problem of not always being able to efficiently take in and use all the air blown into the whistle without some air leakage occurring.

[0007] Furthermore, a disadvantage is that when blowing into the mouthpiece, air may leak through gaps in the weld lines along the mouthpiece, potentially creating undesirable secondary tones.

[0008] Again, due to the design of the mouthpiece, the air intended to be blown into the mouthpiece by the user may simply be lost or leaked around the outer surface of the mouthpiece, and in some cases may never even enter the mouthpiece at all. Again, this leads to a loss of efficient use of the air supplied by the user.

[0009] Clearly, if the sound produced by the whistle deviates from the sound intended by the user and is easily reproducible, it can cause problems when training or controlling a dog through command signals from the whistle. As is well known, dogs have keen hearing, so they can perceive even very small changes in sound (sounds that are inaudible or unrecognizable even to the user or the dog's trainer), potentially leading to harmful or confusing consequences or actions by the dog. Naturally, timely and accurate command signals are crucial in dog trials, as they enable the dog to quickly perform the assigned task. Inaccurate or confusing command signals can confuse the dog and lead to it not fully understanding the command given.

[0010] Furthermore, a dog whistle should be easily blown to produce not only a fundamental frequency, but also loud and soft sounds within that frequency range, with variable durations for those sounds. Effectively, a skilled dog trainer can use the whistle to "talk" to their dog, and the voice (or the way the whistle is blown) should be easily recognizable as unique to that dog.

[0011] Dog training is becoming increasingly popular, and along with it, training techniques are becoming more sophisticated. Whistles are a key feature of this training, and the need for high-quality, reliable, and consistent whistles to produce a stable, uniform sound is becoming increasingly apparent in order to facilitate better communication between trainers and dogs.

[0012] Therefore, it is conceivable that whistles, particularly dog ​​whistles, could be improved to reduce or eliminate secondary sounds that may originate from the sound chamber and / or the mouthpiece or surrounding area. Furthermore, it is conceivable that whistles, particularly dog ​​whistles, could be improved to be more efficient in how the user utilizes the air blown into the whistle, or the air intended to be blown into the whistle.

[0013] The applicant believes that taking in all the air blown into the whistle and efficiently converting it into sound emitted through the air vents should yield two main beneficial effects.

[0014] Firstly, no secondary sounds, as described above, should be produced. Secondly, and most advantageously, the sound should be possible to produce through extremely gentle, seemingly effortless blowing (similar to simply breathing into the whistle). This should allow the dog whistle to be blown so quietly that it is almost inaudible to the human ear, and should provide the user with more precise control over the sound produced. For example, the volume of the sound can be increased with each slight increase in the amount of breath, resulting in an easily reproducible and uniform pitch range that a trained dog can reliably respond to.

[0015] For users, being able to issue whistle signals to their dogs with seemingly minimal effort and breath would be extremely beneficial. This is because, in some situations, it may be necessary to give a large or repetitive number of command signals, and in other situations, it can become cumbersome if each command signal requires considerable effort and breath.

[0016] In addition to the pointed-out issues regarding the generation of undesirable secondary sounds, the applicant also relates, more specifically, to improving user comfort when handling the whistle and blowing into the mouthpiece.

[0017] If your mouth is not comfortably in contact with the mouthpiece when blowing, the air intended to be blown into the mouthpiece may instead escape outwards and / or bounce back outwards.

[0018] Furthermore, the materials used for the whistle, such as polycarbonate (more specifically for the mouthpiece), can affect the whistle's temperature and texture, making it unsuitable for comfortable handling or mouthpiece / teeth contact, especially in cold and / or rainy weather.

[0019] Therefore, it has been proposed to provide a cushioning layer of soft elastomer material to the mouthpiece, making the mouthpiece softer and increasing user comfort in order to minimize any impact between the whistle mouthpiece and the teeth (see, for example, the specification of British Patent No. 2393317).

[0020] The specification of British Patent No. 2393317 describes an attempt to provide a more comfortable mouth grip for the user, but this is thought to result in certain disadvantages. First, the cushioning layer only covers the mouthpiece portion and does not provide complete comfort when handling the whistle. Because the cushioning layer only covers the mouthpiece, it may not reduce secondary sounds that may occur due to air leakage from the sound chamber. Furthermore, the material of the cushioning layer is said to be a soft elastomer or other synthetic rubber material molded in the original position of the mouthpiece, and this material appears to be able to peel off from the mouthpiece and / or deteriorate over time. As a disadvantage, the cushioning layer will appear to be a soft, spongy, compressible / deformable (lacking rigidity and durability) and relatively thick layer. This will inevitably require attachment to the whistle via a dedicated protrusion or projection to hold the layer in place on the whistle mouthpiece. The whistle may have other disadvantages, and the overall shape of the whistle deviates significantly from previous models manufactured without a cushioned mouthpiece. [Prior art documents] [Patent Documents]

[0021] [Patent Document 1] European Patent No. 0930605

Patent Document 2

Summary of the Invention

[0022] Therefore, an object of the present invention is to provide a whistle that reduces at least one or more of the aforementioned disadvantages or other disadvantages, or to provide a whistle that is improved in at least some respects.

[0023] According to one aspect of the present invention, there is provided a whistle comprising components that can be assembled together or joined to define a sound chamber having air holes and a mouthpiece, the sound chamber and the mouthpiece being substantially covered or coated with an elastomeric material.

[0024] Furthermore, according to this aspect of the present invention, there is provided a method of assembling or joining components together to define a whistle sound chamber having air holes and a mouthpiece, and substantially covering or coating the sound chamber and the mouthpiece with an elastomeric material.

[0025] Normally, two components are provided to define a sound chamber and a mouthpiece.

[0026] The component parts are usually combined together to form a structure or framework or skeleton into which an elastomeric material can be injection molded.

[0027] To combine the two components together, two protruding plates (partially circular plates) can be provided at a first part of the component (preferably at the end of the sound chamber) that can engage with another plate on the other part disposed between the one plate, and one of the two protruding plates can be provided with a slot for receiving a longitudinal member or backbone member of the other part. The other part can be provided with a series of rib plates extending laterally to the backbone member. The edges of the rib plates can be exposed on the completed whistle.

[0028] Advantageously, the longitudinal edge of the first part can seat continuously with the edge of the other part to define the sound chamber and mouthpiece, without the need for a secure snap-locking mechanism to join the parts. Elastomer materials are typically chosen to seal joints or connections between components, eliminating the need for adhesives or welding. This seal can provide a mechanical and / or chemical bond.

[0029] Preferably, the elastomer coating extends substantially along the gripping length of the whistle.

[0030] Preferably, the selected elastomer material prevents delamination from the framework.

[0031] The elastomer material may be configured to enhance the gripping characteristics for handling the whistle by hand, preferably provided on the underside of the whistle by raised dots / protrusions.

[0032] Importantly, in one embodiment of the whistle, the angle of the cut edge or split edge of the air vent may be 43°+ / -3°, and / or the angle of the air inlet (air-directed input channel or slope) may be approximately 4°.

[0033] The inner corners of the slope may be right angles, arc-shaped, or inclined (e.g., 45°) to improve sound quality.

[0034] Furthermore, according to the present invention, a whistle is provided having one or more of the features that can be derived from this description and drawings.

[0035] Therefore, more generally, the present invention provides a whistle having an elastomer coating or cover around at least one mouthpiece and sound chamber of the whistle.

[0036] Furthermore, according to the present invention, a whistle having one or more of the following is provided, namely, a) Elastomer coating or cover extending over the mouthpiece and sound chamber, b)a) A coating extending substantially along the gripping length of the whistle described above, c) An elastomer material covering the joint between two components of a whistle, wherein the components preferably define together the sound chamber and the mouthpiece, d) A non-peelable elastomer material located on the mouthpiece, preferably on the sound chamber of the whistle, and preferably extending along the length of the whistle, e) Two components joined together and covered with an elastomer material, f) Two components joined together to define the whistle chamber and mouthpiece, wherein the joint between the components extends significantly shorter than the length of the whistle, for example, ±20% of about half the length of the whistle, or in some cases does not exceed the limiting range of the sound chamber, g) Whistle air vent dividing edge angle of approximately 43°+ / -3° h) Aerial input channel for a whistle with a ramp angle of approximately 4° or 4.5°. i) A (cylindrical) sound chamber having right-angle corners in a cross-sectional view, j) Elastomer coating or application of materials indicated by SANTOPRENE (trademark), k) Preferably, the underside of the whistle has an elastomer material having improved gripping characteristics, preferably provided by raised dots / protrusions.

[0037] Many of the whistle's advantageous features will become clear from the following description and diagrams.

[0038] Herein, an embodiment of the dog whistle according to the present invention will be described as merely one example with reference to the attached figures. [Brief explanation of the drawing]

[0039] [Figure A]A side perspective view of a known, currently produced version of the dog whistle manufactured by the applicant's company is shown. [Figure 1] A top perspective view of a first embodiment of a dog whistle according to the present invention is shown. [Figure 2] Figure 1 shows a perspective view of the underside of a whistle, but it is drawn at a different scale. [Figure 3] Figure 1 shows a top view of the whistle. [Figure 4] Figure 1 shows a view of the whistle from below. [Figure 5] Figure 1 shows a side view of the whistle. [Figure 6] Figure 1 shows a side view of the whistle from the opposite side. [Figure 7] Figure 2 shows an end view of the whistle as seen from the direction of arrow X. [Figure 8] Figure 2 shows an end view of the whistle as seen from the direction of arrow Y. [Figure 9] Figures 1 to 8 show side perspective views of the assembled internal framework or structure of the whistle before the elastomer coating or cover is applied. [Figure 10] Figures 1 to 8 show inverted side perspective views of the assembled internal framework or structure of the whistle before the elastomer coating or cover is applied. [Figure 11] Figures 9 and 10 show side views of the separate upper and lower components of the structure, along with views of each end of the components. [Figure 12] Above the inverted plan view of the lower component, the plan view of the upper component is shown. [Figure 13] Above the plan view of the lower component, an inverted plan view of the upper component is shown. [Figure 14] The side cross-sectional views of the separate upper and lower components are shown. [Figure 15] The image shows side views of separate upper and lower components of the internal frame or structure of a second embodiment of a dog whistle according to the present invention. [Figure 16] Above the inverted plan view of the lower component of Figure 15, the plan view of the upper component of Figure 15 is shown. [Figure 17] Above the plan view of the lower component shown in Figure 15, an inverted plan view of the upper component shown in Figure 15 is shown. [Figure 18] The side cross-sectional views of the separate upper and lower components are shown. [Figure 19] A top view and a side cross-sectional view along line DD of the top view of an improved embodiment of the whistle according to the present invention are graphically shown. [Figure 20] A top view and a side cross-sectional view along line CC of a further improved embodiment of the whistle according to the present invention are shown graphically. [Figure 21] Figure A shows a longitudinal cross-sectional view passing through the upper component of a known whistle. [Figure 22] Figure A shows a longitudinal cross-sectional view passing through the lower component of a known whistle. [Modes for carrying out the invention]

[0040] Figure A shows the applicant's current ACME210 1 / 2 dog whistle 100. ACME is a registered trademark of the applicant (UK00901788225), and 210 1 / 2 is a registered trademark of the applicant (UK00002652250). The structure of the whistle 100 is entirely the same as that disclosed in the specification of European Patent No. 0930605, in which two (upper and lower) longitudinal components 101, 102 are connected together along a dividing line ZZ to form a sound chamber 103 and a mouthpiece 104. A positioning peg p of component 102 (not shown in Figure A, see Figure 22) is engaged with a receiving hole 101a (not shown in Figure A, see Figure 21) in component 101 in a manner similar to that described in European Patent No. 0930605. The two parts 101 and 102 are joined together by ultrasonic welding along a weld line W, which crosses the open end of the mouthpiece 104 and extends along the side of the whistle 100 as shown, while one part extends parallel to the weld line W along the opposite side of the whistle (not shown). This should be obvious.

[0041] For example, in the design of the whistle 100 shown in Figure A, a small gap may remain in the weld line W during manufacturing, which may cause secondary sounds from air escaping through the gap and reduce efficiency, more specifically as described herein and in this patent specification. Furthermore, such secondary sounds may, as stated above, be produced in any event, possibly by air passing through the air vent 105 at or over the corner 106a (only one is shown) of the cut edge or split edge 106.

[0042] Furthermore, it is conceivable that the comfort of using the mouthpiece 104 and the overall comfort of handling the whistle 100 could be improved. In addition, it is conceivable that the design of the mouthpiece 104 could be improved to suppress or prevent initial leakage of air intended to be blown into the mouthpiece. Due to the design of the whistle mouthpiece 104, air supplied by the user may simply be lost or leaked around the outer surface of the mouthpiece, and in some cases may not even enter the mouthpiece at all. Again, this leads to a loss of efficient use of the air supplied by the user. Furthermore, it is conceivable that the design of the mouthpiece could be improved in a way that allows the mouthpiece / teeth to sit more comfortably.

[0043] As described above in this patent specification, the overall efficiency and comfort of the whistle 100 can be improved in a manner that allows all or substantially all of the air provided by the user to be taken in, and in particular, substantially eliminates secondary sounds in a very advantageous manner.

[0044] Referring to Figures 1 to 8 of the attached diagram, the first embodiment of the whistle 1 according to the present invention is shown in Figure A and has a generally known external shape that is substantially identical to the shape of the ACME210 1 / 2 whistle of the applicant's company, as shown on the applicant's website (www.acmewhistles.co.uk).

[0045] However, the outward appearance of Whistle 1 is substantially very different from the known ACME210 1 / 2 whistle shown on the applicant's website, and its internal structure is also very different.

[0046] The whistle 1 has a polycarbonate frame or structure 2 on which an elastomer material cover or coating 3 (such as neoprene rubber) is injection molded.

[0047] Structure 2 comprises an upper polycarbonate component 2a and a lower polycarbonate component 2b that are assembled together before the coating 3 is applied. The assembled internal structure 2 of the whistle 1 is shown in Figures 9 and 10 of the attached diagram.

[0048] As is evident from comparing Figures 1-8 with Figures 9-14, please note that in the completed whistle 1, part of the internal structure remains exposed.

[0049] The two components 2a and 2b are joined together or joined to define a whistle chamber 4 (shown in two parts in Figure 14) having an air hole 5 with a cut edge or split edge 5a and a mouthpiece 6 (shown in two parts in Figure 14).

[0050] It should be noted that, unlike the known arrangement of upper and lower components shown in Figure A and in the patent specification of the applicant's European Patent No. 0930605 (for providing a stable "overmold"), it is advantageous that positioning pegs and holes (fixing points) are not required to secure the upper component 2a and the lower component 2b together.

[0051] Instead of positioning pegs and holes, the lower component 2b has two parallel, partially circular plates p1 and p2 projecting upward (located on the left side of the lower component 2b, as shown in Figures 11 to 14), and plate p1 has a vertical slot S, as shown more specifically in the left end view of Figure 11.

[0052] During the assembly of parts 2a and 2b, it should be obvious that the longitudinal member or spine member B of the upper component 2a is inserted into the slot S, the rib plate R is introduced onto component 2a, and at the same time, it engages relatively snugly between plates p1 and p2. In this way, the longitudinal edges e1 and e2 of component 2a are seated in a continuous manner together with the edges e3 and e4 of component 2b, but there is no need for secure snap-locking of parts 2a and 2b.

[0053] Advantageously, no adhesive is required to join the upper component 2a and the lower component 2b together. Advantageously, ultrasonic welding is not required to seal components 2a and 2b together, which differs from methods long used in the art to join plastic parts together.

[0054] Instead of joining parts 2a and 2b together using adhesive or welding, the rubber coating 3 is injection-molded into the assembled frame or structure 2, advantageously completely sealing the joints of the sound chamber 4 and the mouthpiece 6. The sealing of the joint between part 2a and part 2b should prevent any loss of air from the sound chamber and mouthpiece, thereby leading to the improved efficiency and performance described above in this patent specification. In the manufacture of known designs, ultrasonically welding two parts 101 and 102 together along a weld line W, as shown in Figure A, for example, can result in a very small gap in the weld line that is sufficient to reduce the internal pressure of the whistle when blown, and in some cases, result in a faulty, non-functional whistle. Even a substantially minute gap in the weld line W should be sufficient to reduce the internal pressure of the whistle when blown, altering the airflow and adversely affecting the sound produced.

[0055] The manufacturing process of the present invention, by utilizing the rubberized injection-molded coating described herein, advantageously provides a chemical and mechanical bond between the upper part 2a and the lower part 2b, sealing the joint between the two parts and eliminating any abnormal acoustic effects that may otherwise occur.

[0056] In the embodiment of the whistle 1 according to the present invention, the material of the coating 3 is selected very carefully to provide a satisfactory bond (both chemical and mechanical) without the need for adhesives or welding.

[0057] Most importantly and advantageously, coating 3 is selected and applied so that the coating does not peel off from the internal framework / structure 2, or has no tendency to peel off, or does not have a tendency to deteriorate.

[0058] Coating 3 may be a material identified by SANTOPRENE™ produced by Celanese Materials, and is a versatile thermoplastic vulcanized rubber (TPV) of the thermoplastic elastomer (TPE) type.

[0059] The applicant carefully selected the aforementioned materials and applied them to the finished whistle in a manner favorable to the frame to avoid delamination. In practice, the whistle 1 is produced in a batch process in which four frames 2 are injection molded at a time in a mold (not shown) at a temperature of approximately 200 degrees.

[0060] Overall, the surrounding elastomer coating provides a considerably warmer and more comfortable "feel" to the mouth and tooth protection, unlike the hardened plastic associated with the mouthpiece of the Whistle 100. The improved and refined mouthpiece design allows for a good grip on the mouth and teeth, promotes a good seal with the lips, and reduces the possibility of air loss or leakage from around the outer surface of the mouthpiece. The rubber mouthpiece 6 provides a warm and good grip, especially in cold conditions. Furthermore, since the coating extends not only to the mouthpiece but also along the length of the Whistle 1, handling the whistle is warmer and more comfortable, more specifically in rainy or harsh weather conditions.

[0061] Therefore, the texture and durability of coating 3 are important for contributing to comfortable handling and comfortable blowing.

[0062] Figures 1-8 show five rows of 3a, separated laterally and equally spaced, with respect to the raised elastomer dots or protrusions on the underside of the whistle 1. These dots / protrusions 3a are designed to improve the user's comfort and a safer grip, more specifically in rainy weather conditions. The curved ends of four laterally parallel and equally spaced rib plates r in section 2a are exposed on the finished whistle 1 (indicated by reference numeral 2), as shown in Figures 1-8. The rib plates R are hidden from the figures. The ends of the rib plates are positioned between the rows of dots / protrusions 3a. In practice, the structure r of the rib plates (e.g., rather than a solid block) allows for a more effective and timely flow of the injection-molded elastomer material around the framework 2 and out of the mold tool (not shown). The elliptical portion A of part 2 also remains exposed on the finished whistle 1 and is suitable for receiving any desired trademark or identifying information (e.g., ACME210 1 / 2 (Trademark)). It is obvious that the other parts of the frame 2 will also be exposed on the finished whistle 1.

[0063] Therefore, advantageously, the external form (overall size and dimensions) of Whistle 1 is adapted to closely approximate / mimic the structure of the known Whistle 100 and deliver a sound with the same frequency (6200Hz, with a sound radius of 90m). Thus, the user should quickly become accustomed to and instantly accept Whistle 1. Whistle 1 should look similar but be much warmer and more comfortable, while not feeling perceptibly deformable or spongy in the mouth.

[0064] In known processes for manufacturing whistle 100, parts 101 and 102 may develop scratches during the molding process. Therefore, when this occurs, parts 101 and 102 require polishing to remove the scratches from the finished whistle. Thus, in the advantageous process of the present invention, coating 3b covers the surface of either part 2a or 2b, eliminating the need for polishing of those parts.

[0065] Most importantly and advantageously, the inventors recognize that by changing the relationship between the angle of the cutting edge or split edge 106 (see Figure A) and the air-directed input channel inside the mouthpiece (ramp angle, not shown in Figure A), it should be possible to eliminate escaping air, more specifically at the corners of the cutting edge or split edge 106a.

[0066] Furthermore, the elastomer material around the curved upper edge of the divided edge 5a of the air hole 5 of the whistle 1 affects the airflow, which in turn has a favorable effect on the sound produced and improves the removal of secondary sounds.

[0067] Therefore, by adopting a new angle of 43°+ / -3° for the cut edge or split edge α1, and an air-directed input channel (air inlet), i.e., a ramp angle β1 of approximately 4°, it is possible to provide an improved sound in the whistle 1 designed to produce a frequency of 6200 Hz (see Figures 11 and 14).

[0068] This whistle frequency is suitable for all dogs, but tends to be preferred by certain breeds, such as Spaniels.

[0069] The inner corner g1 of the inclined surface g can be right-angled, or arc-shaped (see, for example, Figures 15-18), or beveled / chamfered (see, for example, 45°, Figure 19), as shown more specifically in Figures 11, 13, and 14. This improves sound quality.

[0070] By blowing the 210 1 / 2ACME whistle 100 shown in Figure A, a sound is produced that is at the same frequency but significantly different from whistle 1. By changing the ramp angle to 43° and the split edge angle to 4°, as with whistle 1, a clearer, sharper, and louder sound is achieved while retaining all the important frequencies of 6200Hz.

[0071] Again, since virtually no air leaks from whistle 1, advantageously, there is no generation of secondary sounds that would confuse the dog, and it appears that commands can be issued with whistle using minimal effort and breath.

[0072] Figures 15 to 18 show the improved upper component 201 and lower component 202 of a second embodiment of the whistle according to the present invention (the finished external appearance is substantially the same as shown in Figures 1 to 8 of the drawings).

[0073] Figures 15 to 18 are similar to Figures 11 to 14, but end views are not shown.

[0074] Having a substantially completed external form according to Figures 1 to 8, but with an internal structure provided by frames 210 and 202, the whistle is positioned to produce a frequency of 5700 Hz over a sound radius of 1.5 km. This frequency range is identical to that of the applicant's ACME211 1 / 2 whistle, 211 1 / 2 is a registered trademark of the applicant (UK00911570405).

[0075] This whistle's frequency is suitable for all dogs, but tends to be preferred by breeds such as Labradors and Retrievers.

[0076] Therefore, the general manufacturing method is the same as the manufacturing method of whistle 1, except that the configuration of frames 201 and 202 is an improvement over frames 2a and 2b, as can be seen in Figures 15 to 18 of the drawings.

[0077] In this case, α2 is also 43° ± 3° (not 55° in Figure A), and β2 is approximately 4.5°. Again, these modified angles result in the performance improvements already described with respect to Whistle 1 in a whistle designed to produce 5700 Hz with an elastomer coating according to the present invention.

[0078] An angle α1 of 43° ± 3° and β1 of approximately 4° may be advantageous and could lead to improved performance of whistle 100 of the ACME210 1 / 2 shown in Figure A. However, adopting these angles appears to yield exceptional results for whistle 1 shown in Figures 1-8 and 9-14.

[0079] The fact that angle α2 is 45° ± 3°, and that β2 is approximately 4.5°, is also advantageous and may result in improved performance of the applicant's ACME211 1 / 2 whistle shown on the applicant's website, similar to the appearance of whistle 100 shown in Figure A. However, adopting these angles is thought to yield exceptional results for whistle 1 shown in Figures 1-8, and Figures 9, 10, 15-18.

[0080] Figure 19 graphically illustrates an improved version of the 210 1 / 2 Whistle 300 (i.e., one that produces a frequency of 6200 Hz).

[0081] Therefore, the dimensions marked in the cross-sectional view shown in Figure 19 may result in improved performance compared to known whistles. Specifically, the inclined corner F shown in whistle 300 has a 45° inclination or chamfered edge.

[0082] Figure 20 shows an improved version of the 211 1 / 2 Whistle 400 (i.e., one that produces a frequency of 5700 Hz).

[0083] Therefore, the dimensions marked in the cross-sectional view shown in Figure 20 may result in improved performance compared to known whistles.

[0084] Furthermore, according to the present invention, a whistle is provided having one or more of the dimensions marked in Figure 19, or one or more of the dimensions marked in Figure 20.

[0085] Figures 21 and 22 show longitudinal cross-sectional views of the upper component 101 and the lower component 102, respectively, passing through the known whistle 100 shown in Figure A.

[0086] The same upper component 101 is used in a known applicant 211 1 / 2 whistle, combined with a different lower component (not shown).

[0087] The applicant believes that there are many differences in design characteristics between the known 210 1 / 2 whistle 100 shown in Figures A, 21, and 22 and the embodiments of the present invention described herein. However, the most important differences that make the most significant contribution to the performance of both the 210 1 / 2 whistle and the 211 1 / 2 whistle according to the present invention are the following a) to f): a) The angles α1 and α2 of the dividing edge 106 of whistle 1 and the known 211 1 / 2 whistle have been changed from 55° to 43°. This angle was originally 38°. The changed angle is 43°±3° and, according to embodiments of the present invention, has been applied equally well to both the new rubber whistles 210 1 / 2 and 211 1 / 2. The provision of the elastomer coating 3 affects the sound produced, and the steeper vent angles α1 and α2 than 55° result in better performance (better quality sound) optimized at 43+ / -3°. b) Importantly, the circular corners c1, c2, c3 of the internal (cylindrical) sound chamber of the whistles 100 and 210 1 / 2 (see Figures 21 and 22) are straight or sharp right angles in the cross-sectional view (see comparison of corner f in Figures 19 and 20). This helps to increase the frequency and volume of the sound produced. c) The angles of the air inlets through the mouthpiece (ramp angles β1, β2) are preferably and advantageously different for the 210 1 / 2 and 211 1 / 2 whistles. Preferably, the angle β2 of the 211 1 / 2 whistle is 4.5 degrees relative to the horizontal, while the angle β2 of the 210 1 / 2 whistle is 4.0 degrees relative to the horizontal. This selection of vent angles β1, β2 works very well in conjunction with the internal corners at the radius of the 211 1 / 2 whistle (e.g., R2.0 in Figure 20) and the chamfer or flat corner (shown as F in Figure 19) of the 210 1 / 2. Providing the chamfer F in whistle 1 is very important for the sound produced (similarly for the radius R2.0 of the 211 1 / 2 whistle). The fundamental frequencies are 6300 Hz for the 211 1 / 2 whistle and 5000 Hz for the 211 1 / 2 whistle. The chamfer F (or radius R2.0) acts as an air director, achieving a stable frequency and effectively eliminating wasted air and unwanted frequencies. d) Additionally, the chamfer F (and radius R2.0) helps control the airflow through the 1,300,400 whistles. This is important for controlling how each whistle is blown. The 211 1 / 2 whistle requires stronger pressure to be blown and produces a low, continuous sound. The 210 1 / 2 whistle (in stark contrast) produces a short sound that the user can effectively blow, keeping the sound extremely quiet. Such a sound may not be much different from a fast "beep." Dogs respond well to this method of signaling. The 210 1 / 2 whistle provides a moderate amount of resistance that makes the "beep" generation feel quite natural to the user / blower. e) Both the 210 1 / 2 and 211 1 / 2 whistles can become unusually quiet when blown softly. Most whistles will cut off or become silent at very low breath pressure, but these whistles will not. f) All sounds have a frequency range within their own range. The mid-range octaves produce the most important frequencies. In the new 210 1 / 2 and 2111 1 / 2 whistles 1, 300, and 400 according to embodiments of the present invention, the number of such frequencies is reduced. This effect is a sound of better quality or tone. Thus, advantageously, these whistles produce a "brighter, sharper" sound according to the present invention. This sound responds well at close range in the 210 1 / 2 whistle 1 and considerably better at long range in the 211 1 / 2 whistle. While known whistles (e.g., Figures A, 21, and 22) worked best at a distance of 500 meters, embodiments of the present invention can also work well at a distance of 589 meters.

[0088] It should be understood that the scope of this invention is not excessively limited by the choice of specific technical terms, and that certain terms may be replaced or supplemented by synonyms or general terms. For example, the term "coating" may be replaced by "packaging material," "joining" may be replaced by "connection," and "whistle" may be replaced by "musical instrument" or "wind signaling device." The terms "top," "bottom," "side," "upward," and "above" and "forward" may be used to describe, but are not intended to limit, the relative positions of the various components of the whistle in use. Furthermore, it should be understood that individual features, methods, or functions relating to the whistle may be inventions that can be individually patented. The singular form may include the plural form, and vice versa. In addition, any range referred herein with respect to any parameter or variable should be interpreted as including the disclosure of any partial range that can be derived within that range, or the disclosure of any specific value of the variable or parameter located within or at the edge of that range or partial range.

Claims

1. A whistle comprising components that can be assembled or joined together to define a whistle chamber having an air vent and a mouthpiece, wherein the chamber and mouthpiece are substantially covered or coated with an elastomer material, sealing the joints or connections between the components.

2. The whistle according to claim 1, having two components provided to define the sound chamber and the mouthpiece.

3. The whistle according to claim 1 or 2, wherein the components are assembled together to form a structure, frame, or skeleton from which the elastomer material can be injection molded.

4. The two components or two of the components are joined together by two protruding plates provided on a first component of the component, which are engageable with a plate on the other component positioned between one of the plates, preferably the two protruding plates are partly circular and / or the two protruding plates are at the end of the sound chamber, preferably one of the two protruding plates is provided with a slot for receiving a longitudinal or spine member of the other component, preferably the other component is provided with a series of rib plates extending laterally to the spine member, preferably the edges of the rib plates are exposed, the whistle according to any one of claims 1 to 3.

5. The whistle according to any one of claims 1 to 4, wherein the vertical edge of the first part of the component sits together with the edge of one or the other component in a continuous manner so as to define the sound chamber and the mouthpiece.

6. The whistle according to any one of claims 1 to 5, wherein the sealing between the components provides a mechanical and / or chemical bond.

7. The whistle according to any one of claims 1 to 6, wherein the elastomer coating extends substantially along the gripping length of the whistle.

8. The whistle according to any one of claims 3 to 7, wherein the elastomer material cannot be peeled off from the frame or structure.

9. The whistle according to any one of claims 1 to 8, wherein the elastomer material is configured to improve the gripping characteristics for handling the whistle by hand, preferably the elastomer material is configured in this way by raised dots / protrusions, and preferably the improved gripping characteristics are provided on the underside of the whistle.

10. The whistle according to any one of claims 1 to 9, wherein the angle of the cut edge or dividing edge of the air hole is 43° ± 3°.

11. The whistle according to any one of claims 1 to 10, wherein the angle of the air inlet of the whistle is approximately 4°, preferably the air inlet is a channel or slope that directs air, and preferably the corner of the inner end of the slope or channel is right-angled, arc-shaped, or inclined (e.g., 45°).

12. A method for making a whistle, comprising assembling or joining components to define a whistle sound chamber having air holes and a mouthpiece, substantially covering or coating the sound chamber and mouthpiece with an elastomer material, and sealing the joints or connections between the components.

13. A method for making a whistle according to any one of claims 1 to 11.

14. A whistle having one or more of the following features a) to m), namely, a) Elastomer coating or cover extending over the mouthpiece and sound chamber, b) A coating extending substantially along the gripping length of the whistle described in a), c) An elastomer material covering the joint between two components of the whistle, wherein the components preferably define together the sound chamber and the mouthpiece, d) A non-peelable elastomer material located on the mouthpiece, preferably on the sound chamber of the whistle, and preferably extending along the length of the whistle, e) Two components joined together and covered with an elastomer material, f) Two components joined together to define the whistle chamber and mouthpiece, wherein the joint between the components extends significantly shorter than the length of the whistle, for example, ±20% of about half the length of the whistle, or in some cases does not exceed the limiting range of the sound chamber, g) Whistle air vent dividing edge angle of approximately 43° ± 3°, h) A whistle air-directed input channel with a ramp angle of approximately 4° or 4.5°. i) A (cylindrical) sound chamber having right-angle corners in a cross-sectional view, j) Elastomer coating or application of materials indicated by SANTOPRENE™ k) Preferably on the underside of the whistle, an elastomer material having improved gripping characteristics, preferably provided by raised dots / protrusions, l) One or more of the dimensions marked in Figure 19 of the attached diagram, or one or more of the dimensions marked in Figure 20 of the attached diagram, m) One or more of the features that can be derived from the description and drawings, A whistle.

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