Embodiments herein relate to an apparatus in use with utility spools. More specifically, embodiments herein relate to an apparatus for retaining a utility spool on a horizontal shaft.
Conduit, pipe, ducts, communications cables, and coaxial cables and similar materials are used for delivering gas, water, sewer, irrigation, fuel, power, electricity, internet, television, etc. These materials are often wound onto a utility spool for means of transportation and installation. After the materials are wound onto a utility spool, the utility spools are then placed on a horizontal shaft on vehicle (such as a trailer, truck, or plow machine) transported to the construction job site. Some utility spools can be heavy, which can cause an increase of friction as cables are being dispensed due to the weight of the utility spools making contact with the horizontal shaft. Such friction can make dispensing the cable difficult and dangerous as workers are subject to increasing their effort to lay cable. Not only is laying cable a danger for workers because of the load placed on unwinding, but the utility spool is free to move about the horizontal shaft, making it difficult to control. A need exists for an improved application and method to retain a utility spool on a horizontal shaft.
An apparatus is described herein including two rotational collars configured on a horizontal shaft to allow for rotational movement of a utility spool. As used herein, utility spools include reels, drums, and other articles, typically for holding a material wound around the spool, such as a cable. The apparatus further includes a first and a second sleeve for each collar, the first sleeve is can be referred to as the inside sleeve intended to make contact with the horizontal shaft while the second sleeve is an outer sleeve intended to mate with the outside surface of the first sleeve forming a lubricious surface, and to make contact with the utility spool to allow for rotational movement of the utility spool in a fixed position on the horizontal shaft.
Embodiments herein include an apparatus for retaining a utility spool on a horizontal shaft. In an embodiment, said apparatus includes a first rotational collar and a second rotational collar configured to be attached to the horizontal shaft on either side of the utility spool. Each of the two rotational collars contain a first sleeve and a second frusto-conical sleeve. The first sleeve and second frusto-conical sleeve form a lubricious surface, and when installed the first rotational collar and the second rotational collar face opposite each other when positioned inside each side of the utility spool.
In an embodiment said apparatus includes a first rotational collar and a second rotational collar configured to be attached to the horizontal shaft on either side of the utility spool. Each of the two rotational collars contain a first sleeve, comprising an inner surface and an outer surface of cylindrical geometry, the first sleeve having an inner diameter, a first outer diameter, and a second outer diameter. The first outer diameter is located on a first end of the sleeve and the second outer diameter is located on a second end of the sleeve, the second end is indicated by an external flange and at least one hole through the flange. Additionally, each of the two rotational collars contain a second sleeve, comprising an inner surface and a frusto-conical outer surface, the second sleeve having a first outer diameter on a first end of the second sleeve and a second outer diameter on a second end of the second sleeve. The second outer diameter is said to be no more than 1.5 times greater than the inner diameter of the first sleeve or whatever size is required. The thickness of the first end is said to be less than 4 times the thickness of the second end, or whatever is required. The angle formed by the frusto-conical outer surface and inner surface is said to be between 15 and 25 degrees, or whatever is required. Said apparatus also contains a lip on the second outer diameter to prevent rotation against a non-rotational surface. The second end of the second sleeve abuts the external flange on the first sleeve, while the outer surface of the first sleeve makes contact with the inner surface of the second sleeve, thus forming a lubricious surface. The inner surface of the first sleeve is the only surface to make contact with the horizontal shaft, and the inner surface of the first sleeve does not rotate on said horizontal shaft. When installed, the first ends face one another while at least partially inserted into a spool opening and the second ends oppose one another. Note that, in some implementations the apparatus does not rotate, but the apparatus still maintains the location of the spool.
A method is described herein for fastening a utility spool to a horizontal shaft. The first collar is fastened to the horizontal shaft by means of at least one set screw, and the first collar is at least partially inserted into a first end of the utility spool. The second collar is fastened to the horizontal shaft by means of at least one set screw, and the second collar is at least partially inserted into a second end of the utility spool. Said set screws restrict rotational movement of said collars and allow for varying horizontal shaft diameters.
This summary is an overview of some of the teachings of the present application and is not intended to be an exclusive or exhaustive treatment of the present subject matter. Further details are found in the detailed description and appended claims. Other aspects will be apparent to persons skilled in the art upon reading and understanding the following detailed description and viewing the drawings that form a part thereof, each of which is not to be taken in a limiting sense. The scope herein is defined by the appended claims and their legal equivalents.
Aspects may be more completely understood in connection with the following figures, in which:
While embodiments are susceptible to various modifications and alternative forms, specifics thereof have been shown by way of example and drawings, and will be described in detail. It should be understood, however, that the scope herein is not limited to the particular embodiments described. On the contrary, the intention is to cover modifications, equivalents, and alternatives falling within the spirit and scope herein.
The embodiments described herein are not intended to be exhaustive or to limit the invention to the precise forms disclosed in the following detailed description. Rather, the embodiments are chosen and described so that others skilled in the art can appreciate and understand the principles and practices.
All publications and patents mentioned herein are hereby incorporated by reference. The publications and patents disclosed herein are provided solely for their disclosure. Nothing herein is to be construed as an admission that the inventors are not entitled to antedate any publication and/or patent, including any publication and/or patent cited herein.
In one embodiment, an apparatus for retaining a utility spool on a horizontal shaft comprises of a first rotational collar and a second rotational collar, each configured to be attached to the horizontal shaft on either side of the utility spool. In said embodiment, the two rotational collars may contain a first sleeve and a second sleeve. In certain embodiments, the second sleeve may have a tapered exterior surface. For example, the tapered outer surface on the second sleeve may be comprised of a frusto-conical geometry or of similar conical geometry. In said embodiment, the first sleeve and second frusto-conical sleeve form a lubricious surface when mated. When the apparatus is installed, the first rotational collar and the second rotational collar face each other when positioned inside each side of the utility spool.
In addition or alternatively, the apparatus may include of set screws to fasten the mechanism to the horizontal shaft. For example, the apparatus may consist of at least 3 screws offset by 120 degrees, the apparatus may consist of at least 4 screws offset by 90 degrees. Said set screws allow for the apparatus to remain in a fixed position inside each end of the utility spool. In certain embodiments a retainer ring may be used to fix the second sleeve to the first sleeve.
In addition or alternatively, the first sleeve and second sleeve may be comprised of metal. For example, the first sleeve may be comprised of steel and the second sleeve may be comprised of brass. In some embodiments, the first sleeve and second sleeve may be comprised of similar metals such as steel, aluminum, brass, bronze, iron, tin, nickel, magnesium, or any metal similar or combination thereof. In some embodiments, the first sleeve and second sleeve may be comprised of a plastic material. For example, the first sleeve and second sleeve may be comprised of a thermoplastic or thermoset material such as ABS, polyethylene, polyvinyl chloride, polyurethanes polymers, or any thermoplastic or thermoset material similar or combination thereof.
In addition or alternatively, the apparatus may various spool diameters. For example, the apparatus may be configured to encompass spool diameters of 3-3.5 inches. In some embodiments the apparatus can be adapted to encompass varying horizontal shaft diameters by means of set screws.
In addition or alternatively, lubricious surface between the first sleeve and the second sleeve may be comprised of a bearing assembly. For example, the bearing assembly may be comprised of ball bearings, roller bearings, thrust ball bearings, thrust roller bearings, tapered roller bearings, magnetic bearings, rotary bearings, or any similar bearing assembly.
In another embodiment, an apparatus for retaining a utility spool on a horizontal shaft comprises of a first rotational collar and a second rotational collar, each configured to be attached to the horizontal shaft on either end of the utility spool. In said embodiment, the two rotational collars may contain a first sleeve and a second sleeve. In some embodiments the first sleeve may be comprised of an inner surface and an outer surface of cylindrical geometry, and the first sleeve may contain an inner diameter, a first outer diameter and a second outer diameter wherein the first outer diameter is located on a first end of the sleeve and the second outer diameter is located on a second end of the sleeve indicated by an external flange and at least one hole through the flange. Additionally, in some embodiments the second sleeve may be comprised of an inner surface and an outer surface. In certain embodiments, the second sleeve may have a tapered exterior surface. For example, the tapered outer surface on the second sleeve may be comprised of a frusto-conical geometry or of similar conical geometry. In some embodiments the second sleeve having a first outer diameter on a first end of the second sleeve, and a second outer diameter on a second end of the second sleeve. In some embodiments, the second outer diameter is no more than 1.5 times greater than the inner diameter of the first sleeve. In some embodiments, the thickness of the first end may be less than 4 times the thickness of the second end. In some embodiments, the angle formed by the frusto-conical outer surface and inner surface is between 15-25 degrees. The second sleeve can contain a lip on the second outer diameter to prevent rotation against a non-rotational surface. For example, the lip prevents the spool shaft from making rotational contact with the second diameter of the first sleeve. Said rotational contact would be destructive to the invention purpose. In some embodiments the second end of the second sleeve may abut the external flange on the first sleeve. In addition or alternatively, the outer surface of the first sleeve forms a lubricious surface with the inner surface of the second sleeve. In some embodiments, the inner surface of the first sleeve is the only surface to make contact with the horizontal shaft, and the inner surface of the first sleeve does not rotate. As described above, when installed the first ends face one another while at least partially inserted into a spool opening and the second ends oppose each other. In the invention, both first and second ends of the first and second sleeve directly relate to each other.
In addition or alternatively, the apparatus may include set screws to fasten the mechanism to the horizontal shaft. For example, the apparatus may consist of at least 3 screws offset by 120 degrees, the apparatus may consist of at least 4 screws offset by 90 degrees. Said set screws allow for the apparatus to remain in a fixed position inside each end of the utility spool. In certain embodiments a retainer ring may be used to fix the second sleeve to the first sleeve. Also, the screws can be modified after installation so they do not easily fall out of the collar, such as by vibration during use or transport. This modification can comprise, for example, apply a bead of metal by welding to the end threads on the screw.
In addition or alternatively, the first sleeve and second sleeve may be comprised of metal. For example, the first sleeve may be comprised of steel and the second sleeve may be comprised of brass. In some embodiments, the first sleeve and second sleeve may be comprised of similar metals such as steel, aluminum, brass, iron, tin, nickel, magnesium, or any metal similar or combination thereof. In some embodiments, the first sleeve and second sleeve may be comprised of a plastic material. For example, the first sleeve and second sleeve may be comprised of a thermoplastic or thermoset material such as ABS, polyethylene, polyvinyl chloride, polyurethanes polymers, or any thermoplastic or thermoset material similar or combination thereof.
In addition or alternatively, the apparatus may hold various spool diameters. For example, the apparatus may be configured to encompass spool diameters of 3-3.5 inches. In some embodiments the apparatus can be adapted to encompass varying horizontal shaft diameters by means of set screws.
In addition or alternatively, lubricious surface between the first sleeve and the second sleeve may be comprised of a bearing assembly. For example, the bearing assembly may be comprised of ball bearings, roller bearings, thrust ball bearings, thrust roller bearings, tapered roller bearings, magnetic bearings, rotary bearings, or any similar bearing assembly.
In some embodiments, a first collar is fastened to a horizontal shaft by means of at least one set screw and at least partially inserted into a first end of a utility spool. For example, in some embodiments the first collar may be fastened to the horizontal shaft by at least one set screw, in some embodiments the first collar may be fastened to the horizontal shaft by at least two set screws, in some embodiments the first collar may be fastened to the horizontal shaft by at least three set screws, in some embodiments the first collar may be fastened to the horizontal shaft by at least four set screws. In some embodiments, a second collar is fastened to a horizontal shaft by means of at least one set screw and at least partially inserted into a second end of a utility spool. For example, in some embodiments the second collar may be fastened to the horizontal shaft by at least two set screw, in some embodiments the second collar may be fastened to the horizontal shaft by at least three set screw, in some embodiments the second collar may be fastened to the horizontal shaft by at least four set screw. The set screws restrict rotational movement of said collars and in some embodiments, allow for varying horizontal shaft diameters.
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In some embodiments said rotational collar 100 is comprised of two or more set screws 140. Referring now to
In some embodiments said rotational collar 100 is comprised of three or more set screws 140 offset by 120 degrees. Referring now to
In other embodiments, said rotational collar 100 is comprised of four or more set screws 140 offset by 90 degrees. Referring now to
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It should be noted that, as used in this specification and the appended claims, the singular forms “a,” “an,” and “the” include plural referents unless the content clearly dictates otherwise. Thus, for example, reference to a composition containing “a compound” includes a mixture of two or more compounds. It should also be noted that the term “or” is generally employed in its sense including “and/or” unless the content clearly dictates otherwise.
It should also be noted that, as used in this specification and the appended claims, the phrase “configured” describes a system, apparatus, or other structure that is constructed or configured to perform a particular task or adopt a particular configuration to. The phrase “configured” can be used interchangeably with other similar phrases such as arranged and configured, constructed and arranged, constructed, manufactured and arranged, and the like.
All publications and patent applications are herein incorporated by reference to the same extent as if each individual publication or patent application was specifically and individually indicated by reference.
Aspects have been described with reference to various specific and preferred embodiments and techniques. However, it should be understood that many variations and modifications may be made while remaining within the spirit and scope herein.
This application claims the benefit of U.S. Provisional Application No. 62/417,176, filed Nov. 3, 2017, the content of which is herein incorporated by reference in its entirety.
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Number | Date | Country | |
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20180118502 A1 | May 2018 | US |
Number | Date | Country | |
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62417176 | Nov 2016 | US |