The detailed description is explained with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. It should be noted that the figures are not necessarily drawn to scale and are for illustration purposes only.
Introduction
Reference herein to “one embodiment”, “an embodiment”, “an implementation” or “one implementation” or similar formulations herein, means that a particular feature, structure, operation, or characteristic described in connection with the embodiment, is included in at least one embodiment of the present invention. Thus, the appearances of such phrases or formulations herein are not necessarily all referring to the same embodiment. Furthermore, various particular features, structures, operations, or characteristics may be combined in any suitable manner in one or more embodiments.
In the following description, for purposes of explanation, specific numbers, materials and configurations are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that the present invention may be practiced without each specific example. In other instances, well-known features are omitted or simplified to clarify the description of the exemplary embodiments of the present invention, and thereby, to better explain the present invention.
The inventors intend these embodiments and implementations to serve as representative illustrations and examples. The inventors do not intend these embodiments to limit the scope of the claims; rather, the inventors have contemplated that the claimed invention might also be embodied and implemented in other ways, in conjunction with other present or future technologies.
As used herein the term “horse” refers to any hoofed animal in the equine family or others that may wear shoes that attach to their hoofs, such as a horse, a pony, a donkey, a mule, a cow, a giraffe, or other animals having keratinous hoof materials.
Assembly 100 is a separate element from and not initially attached to horseshoe 102. That is, assembly 100 is distributed to end-user customers (such as a farrier) as a separate product. This will permit the end-user, to select the particular horseshoe of his/her choosing. Once a particular horseshoe having a particular shape and size configuration is selected by a farrier, the farrier may attach horseshoe 102 to assembly 100 using an adhesive, and then secure assembly 100 to a horse's hoof, by means of an adhesive.
As horseshoes come in a variety of different sizes, and different shape configurations, a farrier is able to adjust the size and shape configuration of assembly 100 to conform to the particular size/shape configuration of the selected horseshoe. For example, assembly 100 may be supplied in size configurations including small, medium, large, and extra large, to more easily meet a farrier's needs when selecting an assembly to match the size configuration of many different sized horseshoes. Adjustment in shape configuration of assembly 100 may be achieved by bending each of the U-shaped members of assembly 100 in a generally planar direction to match the shape/configuration of a horseshoe.
For example,
Additionally, each U-shaped member 200(1), 200(2) may be bent such that each member is shaped to align and to conform to the boundaries of a selected horseshoe. For example,
Having introduced assembly 100, it is now possible to describe its constituent elements in more detail. Assembly 100 includes an elastomeric rim pad 106, a cuff 108, and a plate 110. Each shall now be described in more detail.
As shown in
Rim pad 106 is formed of an elastomeric material that is flexible yet rigid enough to resist full deformation while maintaining shape integrity, such as a stiff rubber, a polymer, a polyurethane, or other durable flexible stress resistant material. In one embodiment, rim pad 106 is formed of TDI (toluene di-isocyante) urethane but could be any variety of suitable materials as would be appreciated by those skilled in the art after having the benefit of this disclosure. As used on horses, rim pad 106 is flexible upon compression providing a shock-absorbing feature, while not taking a compression set when the horse stands on it, thus reducing or eliminating shock experienced by a horse when in motion or in typical stride.
In one implementation, rim pad 106 has a thickness of about ¼ inch viewed from the side view of
Rim pad 106 also secures cuff 108 to assembly 100. Cuff 108 is generally secured (i.e., attached) to rim pad 106. In one implementation, cuff 108 is incorporated in an upper portion of the rim pad 106. That is, cuff 108 is partly encapsulated in rim pad 106. Additional details of how cuff 108 is encapsulated in rim pad 106 are discussed in the above-mentioned U.S. Pat. No. 5,330,008, to Sigafoos et al. as well as U.S. Pat. No. 5,699,861 to Sigafoos, and U.S. Pat. No. 5,638,905 to Sigafoos et al., all incorporated fully herein by reference and will not be discussed further. Typically, cuff 108 extends from an outer convex edge 204 (
In one embodiment, cuff 108 is a fabric configured to conform to a wall 604 (
For example, in one implementation, cuff 108 is constructed of roughly equal quantities of polyester and Vectran™ (a liquid crystal polymer or polyester) graded in a two-ply configuration. Polyester is used to deliver high bonding strength with adhesive, is flexible, and works well in wet environments without structural weakening. However, other suitable materials may be selected in place of polyester, which provide similar attributes as polyester as would be appreciated by those skilled with the benefit of having this disclosure, such as nylon, and other synthetic or non-synthetic materials.
The second potential component of the braid, Vectran™, is used to provide abrasion resistance for cuff 108. The abrasion resistant material is incorporated to reduce and minimize the wear of the fabric due to contact with ground materials that a horse's hoof normally encounters, such as dirt, sand, gravel, etc. Other suitable abrasion resistant materials could be selected as would be appreciated by those skilled in the art having the benefit of this disclosure. For example, Dyneema® or Spectra® (high molecular weight polyethylene) or the like material could also be used as one of the ply material in place of, or in conjunction with, one of the plies.
Thus, cuff 108 may be constructed of strong and resistant material(s) able to undergo severe wear conditions.
Another aspect of cuff 108 is its ability to contact hoof wall 604 (
Thus, cuff 108 reinforces a hoof wall 604 (
Typically, most adhesives such as methacrylate or other acrylic adhesive may be used for attaching cuff 108 and rim pad 106 to a horse's hoof. Please see U.S. Pat. No. 5,330,008, for a more detailed process of attaching cuff 108 to a horse's hoof.
Returning back to the discussion of rim pad 106,
As shown in
Plate 110 is formed of any material that is adjustable in configuration, such as through bending. In one embodiment, plate 110 is formed of aluminum. However, it is appreciated by those skilled in the art having the benefit of this disclosure, that plate 110 may be comprised of other suitable materials, such as metal composite, steel, or some combination of materials. As an interface between assembly 100 and a horseshoe 102 it is important that the type of material adhere to an adhesive material when plate 110 is attached to a horseshoe.
Generally, the bendable material of the plate 110 should have enough rigidity to retain a shape after an adjustment is made to its shape, including overcoming any counterforce exerted by the elastomeric rim pad 106 when flexed. Another preferable characteristic (although not required) is that plate 110 bend by hand without the use of applied heat which can degrade the bonds of elements comprising assembly 110.
To accomplish these goals, plate 110 may be segmented. For example, in one embodiment, plate 110 may include one or more slots 408 (
Segmentation of plate 110 also provides pockets 410 (in slots 408) between which viscous glue (acrylic or other adhesive) can flow to aid in attaching a horseshoe to assembly 100. These pockets 410 also serve as lateral friction points between the horseshoe and plate 110, after a horseshoe is attached to assembly 100 such as through the use of an acrylic adhesive when the adhesive cures.
Segmentation of plate 110 may be achieved using a variety of patterns, including slots, slits (not shown), holes (not shown), or any suitable combination of segmentation patterns, which are molded, forged, injected molded, stamped or cut into the plate 110, as would be appreciated by those skilled in the art having the benefit of this disclosure.
Additionally, plate 110 may include a plurality of independent sections instead of unitary piece of material. For example,
Thus, plate 100 is formed of a bendable material which is adjustable in shape to conform in shape and size with a horseshoe selected from a group of horseshoes having different shapes and sizes.
As shown in
The steps described above are exemplary, and that other processes can be used to construct an assembly 100, as would be appreciated by those skilled in the art having the benefit of this disclosure.
In block 501, a horse's hoof wall is trimmed.
In block 502, a horseshoe is selected having a particular size and shape configuration.
In block 503, the selected horseshoe is fitted to the trimmed hoof.
In block 504, the assembly 100 is bent (see
In block 506, assembly 100 is secured to a horseshoe 102 (see
In block 508, assembly 100 with a horseshoe 102 secured thereto may be attached to the horse's hoof using an adhesive, such as an acrylic material. For example, cuff 108 and rim pad 106 can be applied to a horse's hoof by using an acrylic adhesive.
Prior to application of the shoeing system, the outside of the hoof wall should be coated with a thin layer of an acrylic adhesive where the fabric of cuff 108 will contact the hoof. Immediately after this, the fabric cuff portion of the assembly must be saturated with the same adhesive before attachment to the outside periphery of the hoof wall. A moderately fast-curing methacrylate-based structural adhesive is recommended. Two-part 100% reactive methacrylate-based structural adhesives are preferred since they are strong, can be very fast setting, and their acrylic properties allow the adhesives to attach to the proteinaceous hoof wall of the animal with a strong bond, while also adhering strongly to the polymeric fabrics as used in the cuff part of the horseshoe assembly. Note: there is no glue applied to the bottom of the horse's hoof; the entire attachment strength is derived from the cuff in shear bonding to the outside wall of the horse's hoof
Versilok 402 from Lord Corporation of Erie, Pa. is an excellent modified acrylic structural adhesive for this purpose. It is based on methyl-2-methyl-2-propenoate (methyl methacrylate) with an accelerator of benzoyl peroxide, diisobutyl phthalate, and a bisphenol. While Versilok 402 is useful, it is somewhat tacky even when fully cured. Versilok 403 is less tacky while providing the necessary strength but is slower curing than Versilok 402. Either adhesive is effective when used in the present invention as are other fast-setting acrylic adhesives.
Cuff 108 is then set onto the hoof, as shown in
Thus, the horseshoe assembly in accordance with the present invention therefore provides a farrier with the ability to assess a horse's hoof, select a shoe shape, select a shoe size, and then attach the assembly thereto simply by adjusting the assembly in size and shape to conform with the selected horseshoe, and glue the horseshoe and assembly together on site.
It is to be understood that the present invention is not limited to the embodiments described above, but encompasses any and all embodiments within the scope of the subjoined Claims and their equivalents.