The present invention relates to pet toys, and more particularly, to a pet toy having therapeutic features on the outer surface of the toy that stimulates dental cleaning of the animal's teeth and gums, and the animal toy also having a noise making feature that may be selectively disabled to prevent the noise making feature from operating.
Chewable pet toys have been available for many years. Rubber or plastic is the preferred material for chewable pet toys, and there are a tremendous number of different shaped pet toys, some of which incorporate features to clean the teeth and gums of the animal as the animal chews on the toy.
One example of a patent that discloses a pet toy with features formed on the outer surface of the toy to clean an animal's teeth and gums is the U.S. Pat. No. 6,439,166. This reference discloses an animal toy with raised features formed on the outer surface of the toy of various shapes and designs. The raised features may also have differing tips or ends that also have beneficial effects on the animal's mouth for dental cleaning.
Another patent reference that discloses a pet toy intended for dental cleaning is the U.S. Pat. No. 4,802,444. This reference discloses more specifically a pet toy made of an elastomeric material, and grooves formed on the outer surface of the toy that are sized and configured so that an animal that bites down on the toy will have its teeth and gums cleaned because the groove collapses around the teeth and gums.
Yet another patent reference disclosing a pet toy including features for cleaning the animal's teeth and gums is U.S. Pat. No. 5,865,146. The pet toy disclosed in this reference is characterized by an elongated hollow body, and a pair of spaced bulbous sections, each having a sidewall of substantially constant cross sections throughout. A plurality of longitudinally spaced angular ribs extend around the periphery of the bulbous sections forming grooves to facilitate an animal gripping the toy with its teeth. When the teeth of the animal deform the pet toy, the ribs deflect inwardly to clean the teeth and gums of the animal.
While these references may be adequate for their intended purpose, there is still a need for a pet toy that is especially adapted for providing dental cleaning wherein dental cleaning features are disposed on substantially all of the outer surface of the toy to ensure that despite the angle at which the animal may bite on the toy, the dental cleaning features will result in some stimulation of the teeth and gums of the animal. There is also a need to provide a pet toy with dental cleaning features wherein the cleaning features are of a robust design such that they are not easily torn off by the biting action of the animal, and further wherein the arrangement of the dental cleaning features do not detract from the structural integrity of the toy.
Another common feature with many pet toys is the provision of a noise-producing element such as a squeaker that produces a sound as the animal bites down on the toy. There are a number of problems associated with providing squeakers in a pet toy, such as the animal choking on the squeaker after it has been removed by the animal during play with the toy. One natural behavior for many animals is to make an attempt to “kill” the toy by gaining access to the squeaker, which can result in the undesirable choking or aspiration of the squeaker. Another problem associated with squeakers is that the noise produced can, over time, be a nuisance to the pet owner who wishes for the toy to be silent at selected times. Therefore, there is a need for a pet toy such that the squeaker is securely mounted within the pet toy and is difficult to access by the pet, yet the squeaker may be selectively disabled to quiet the pet toy at desired times.
In accordance with the present invention, an animal or pet toy is provided having a plurality of raised features formed on the outer surface of the toy for purposes of providing dental cleaning to the animal's teeth and gums. The raised features in the preferred embodiments are ribs or protrusions that extend in a linear fashion around substantially the entire outer surface of the pet toy. The ribs or protrusions are spaced from one another along the outer surface of the pet toy, and the space or gaps between the ribs may be defined as channels or grooves.
In the preferred embodiments, the ribs or protrusions are spaced uniformly from one another on the outer surface of the pet toy. Depending upon the particular shape of the pet toy, there may be groups or sets of protrusions that intersect with other groups or sets of protrusions. At the points of intersection, the protrusions may overlap, thereby providing additional structural strength to the pet toy in general, as well as to further stabilize a connection between the protrusions and the outer surface of the pet toy. These points of intersection also provide further enhanced dental cleaning since the overlapping configuration of the protrusions are provided in a manner to contact the animal's teeth and gums at different angles.
The animal toy is preferably made of a resilient, elastomeric material that prevents it from being destroyed when chewed on by the animal.
The inner surface of the pet toy defines a substantially hollow core. The thickness of the pet toy is defined by a sidewall that is substantially uniform. The sidewall is selected from a thickness that allows the pet toy to collapse a desired amount when an animal bites down on the pet toy. As the pet toy collapses under pressure, the protrusions therefore change their angle with respect to the animal's mouth, thereby providing additional cleaning benefits. Depending upon the type of animal using the toy, the thickness can be varied to provide a desired amount of rigidity or resiliency for limiting or increasing the degree of collapse that occurs.
Preferably, the protrusions extend perpendicularly away from the outer surface of the pet toy. As disclosed in the preferred embodiments, rounded or curved outer surfaces of the pet toy results in the protrusions extending away from the outer surfaces of the animal toy in a multitude of different angles. These multitude of different angles coupled with substantially the entire outer surface of the pet toy having the protrusions result in an increased chance that one or more of the protrusions will contact different tooth and gum surfaces of the animal's mouth.
Primary dental cleaning occurs when the teeth and gums of the animal contact the protrusions, and the protrusions are bent or deflected as they contact the animal's teeth and gums. The protrusions can be made more or less rigid, thus resulting in the desired degree of deflection as the animal's mouth comes into contact with the protrusions. The degree of resiliency of the material can also be varied to achieve the desired dental cleaning effect.
In yet another aspect of the present invention, food treats may be placed in the grooves in order to further entice the animal to play with the pet toy. The pet treats may include a paste-like material such as liver paste or peanut butter, which will be retained within the grooves. Toothpaste can also be used between the grooves to further assist in dental cleaning.
Also in the preferred embodiments, the particular shape of the protrusions can be chosen to maximize the intended purpose of the toy. In the preferred embodiments, the protrusions each have a pair of sidewalls that extend substantially perpendicular to the outer surface of the pet toy. The sidewalls may extend substantially parallel to one another, or the most outer edges of the side walls may converge towards one another resulting in a triangular shaped cross section. The distal tip or edge of the protrusions may be roughened, similar to a knurled finish, wherein the roughened tips or edges further assist in dental cleaning.
In yet another aspect of the present invention, an internal holding pocket is provided for placement of a squeaker. The squeaker is provided with a control element that enables the pet owner to control activation or deactivation of the squeaker. Manipulation of the control element can be achieved by a simple tool that is able to move the control element between an engaged and disengaged position with respect to the squeaker.
Additional features and advantages of the present invention will become apparent from the detailed description that follows, taken in conjunction with the accompanying drawings.
Referring also to the
Preferably, the protrusions have a height that extends substantially perpendicular from the outer surface of the pet toy. Accordingly, the protrusions generally follow the shape or contour of the outer surface of the pet toy. In the case of
Optionally, an open area or gap 34 may be formed on the pet toy wherein the outer surface of the pet toy is exposed, and no protrusions are found in that open area. This open area may facilitate placement of a trademark or other product identifying information.
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The control element 70 is a tubular member having a flange 72 and a forward contacting edge 74. A tab 76 forms the most distal part of the control element. Disposed on the interior surface of the body 52 are at least two detents 78 and 80. If it desired to deactivate or inhibit operation of the squeaker 50, the control element 70 is fully inserted within the body 52 such that the forward contacting edge 74 makes contact with the reed 56, thereby preventing the reed from vibrating. In this position, the tab 76 is disposed between detents 78 and 80, thereby holding the control element in a locked position. If it is desired to activate the squeaker, the control element 70 is withdrawn from the body 52 such that the tab 76 resides on the opposite side of detent 78 and the forward contacting edge 74 does not make contact with the reed 56, thereby allowing the reed to freely vibrate when air passes through the passage 60. Another pair of detents 82 may be formed on the interior surface of the body 52. These detents 82 serve to provide some frictional engagement of the body 52 against the control element 70 such that when the control element is withdrawn as shown in
In the embodiments of
The pet toy of the present invention can be made of a resilient, flexible, material such as plastic, or from an elastomeric material such as rubber that prevents the animal toy from being consumed by the animal, and also helps to achieve the desired type of dental cleaning action in the animal's mouth. The toy is preferably made of a material flexible enough so that when the animal bites down on the animal toy, the sidewall of the animal toy is allowed to deform or deflect, allowing the protrusions to shift or collapse in different directions thereby providing a scraping motion or movement which further helps to clean the animal's mouth.
From the foregoing, the advantages of the present invention are readily apparent. An animal or pet toy is provided that has a plurality of protrusions that result in dental cleaning. The particular arrangement of the protrusions and overlapping regions between sets of the protrusions further adds to dental cleaning capability and also can add to the structural strength of the pet toy. Selectively controlling the activation or deactivation of the squeaker is achieved by the use of a control element that may be easily manipulated by a user. The squeaker is located within a protected internal holding pocket such that it is very difficult for the animal to remove the squeaker.
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