Patent Grant
7121498
Not applicable to this application.
Not applicable to this application.
1. Field of the Invention
The present invention relates generally to elongate material dispensers and more specifically it relates to an improved elongate material dispenser system for providing a positive locking structure for retaining a disposable spool regardless of the physical state of the spool's cardboard core.
2. Description of the Related Art
Elongate material dispensers using disposable spools have been in use for years. Conventional elongate materially dispensers are formed for receiving and dispensing a disposable spool of material such as barricade tape, flagging tape, construction string, rope, wire and other elongate materials.
U.S. Pat. No. 5,664,739 illustrates an elongate material dispenser that utilizes a split shank design for receiving the disposable spool. The main shank has a plurality of gripping ridges that a pair of prong members engage on opposing sides thereof. When the disposable spool is positioned upon the split shank, the tubular cardboard core of the disposable spool compresses the distal hooked ends of the prong members against the gripping ridges. However, after the disposable spool has become wet or utilized for extended periods of time, the cardboard core begins to deteriorate and deform. After the tubular cardboard core has become deformed, the compression force applied to the prong members is reduced thereby allowing accidental release of the main shank from the prong members.
Examples of patented devices which are related to the present invention include U.S. Pat. No. 5,927,635 to Black; U.S. Pat. No. 2,171,648 to Ennis et al.; U.S. Pat. No. 1,825,822 to Rundell; U.S. Pat. No. 4,235,389 to Ness; U.S. Pat. No. 5,328,115 to Samuelson et al.; U.S. Pat. No. 2,632,605 to Lee; U.S. Pat. No. 5,370,339 to Moody et al.; U.S. Pat. No. 3,346,208 to Hoffman et al.; U.S. Pat. No. 5,683,058 to Schwarz et al.; U.S. Pat. No. 3,347,485 to Bundschuh; and U.S. Pat. No. 3,612,423 to Bahnsen.
While these devices may be suitable for the particular purpose to which they address, they are not as suitable for providing a positive locking action for retaining a disposable spool. Conventional elongate material dispensers are not efficient in unloading/loading disposable spools and are susceptible to accidental release of disposable spools.
In these respects, the elongate material dispenser system according to the present invention substantially departs from the conventional concepts and designs of the prior art, and in so doing provides an apparatus primarily developed for the purpose of providing a positive locking action for retaining a disposable spool.
In view of the foregoing disadvantages inherent in the known types of elongate material dispensers now present in the prior art, the present invention provides a new elongate material dispenser system construction wherein the same can be utilized for providing a positive locking structure for retaining a disposable spool regardless of the physical state of the spool's cardboard core.
The general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new elongate material dispenser system that has many of the advantages of the elongate material dispensers mentioned heretofore and many novel features that result in a new elongate material dispenser system which is not anticipated, rendered obvious, suggested, or even implied by any of the prior art elongate material dispensers, either alone or in any combination thereof.
To attain this, the present invention generally comprises a handle member having a handle shoulder, a handle shank having a first prong and a second prong extending from the handle member, an end member having an end shoulder, a tongue member having a plurality of first teeth and a plurality of second teeth, a first cross member having a first positive member, and a second cross member having a second positive member. The first positive member and the second positive member catchably engage the second teeth within the tongue member. The resilient prongs retain the first positive member and the second positive member in engagement with the second teeth regardless of the physical state of the core.
There has thus been outlined, rather broadly, the more important features of the invention in order that the detailed description thereof may be better understood, and in order that the present contribution to the art may be better appreciated. There are additional features of the invention that will be described hereinafter and that will form the subject matter of the claims appended hereto.
In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of the description and should not be regarded as limiting.
A primary object of the present invention is to provide an elongate material dispenser system that will overcome the shortcomings of the prior art devices.
A second object is to provide an elongate material dispenser system for providing a positive locking structure for retaining a disposable spool regardless of the physical state of the spool's cardboard core.
Another object is to provide an elongate material dispenser system that is capable of loading/unloading a disposable spool of elongate material.
An additional object is to provide an elongate material dispenser system that is capable of receiving various sizes of disposable spools.
Other objects and advantages of the present invention will become obvious to the reader and it is intended that these objects and advantages are within the scope of the present invention.
To the accomplishment of the above and related objects, this invention may be embodied in the form illustrated in the accompanying drawings, attention being called to the fact, however, that the drawings are illustrative only, and that changes may be made in the specific construction illustrated and described within the scope of the appended claims.
Various other objects, features and attendant advantages of the present invention will become fully appreciated as the same becomes better understood when considered in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the several views, and wherein:
A. Overview
Turning now descriptively to the drawings, in which similar reference characters denote similar elements throughout the several views,
B. End Member
The end member 40 is removably connected to the handle member 20 thereby forming a shank structure that extends through the core 14 of a spool 12 of elongate material such as line, string or tape. The end member 40 includes a tongue member 44 extending from an end shoulder 42 as best shown in
The end shoulder 42 may be comprised of any broad structure capable of retaining a spool 12 on the shank of the present invention as best shown in
The tongue member 44 preferably has a length sufficient to extend through the core 14 of the spool 12 into engagement with the prongs 32, 34 as best illustrated in
The tongue member 44 preferably has a plurality of teeth 46, 48 on opposing sides of the tongue member 44 for catchably engaging the prongs 32, 34. The plurality of teeth 46, 48 are substantially transverse with respect to a longitudinal axis of the tongue member 44 as best illustrated in
The teeth 46, 48 may have various structures capable of forming raised ridges capable of catchably receiving the prongs 32, 34 such as but not limited to serrated, saw-tooth, curved, triangular, square, rectangular and other related shapes. The teeth 46, 48 are preferably mirrored on opposing sides of the tongue member 44 as shown in
As further shown in
The first teeth 46 preferably extend a finite distance from a distal portion of the tongue member 44 as shown in
C. Handle Member
The handle structure is formed for rotatably supporting the shank structure and the spool 12 positioned upon the shank structure. The handle structure may be comprised of various well-known handle configurations suitable for an elongate material dispenser such as a rotatable handle and the like. The handle structure further preferably includes a handle shoulder 22 for providing end support to the spool 12 opposite of the end shoulder 42 as shown in
As shown in
The first prong 32 and the second prong 34 are preferably comprised of a resilient material and structure so that they define a receiving slot between thereof that receives the tongue member 44 of the end member 40. The receiving slot may have various configurations capable of removably receiving the tongue member 44.
The first prong 32 includes at least one first engaging member 33 near the distal end of the first prong 32 facing inwardly. The first engaging member 33 is a nub-like structure and catchably engages the second teeth 48 as shown in
The first prong 32 further preferably includes at least one first positive member 54 attached to a central portion of the first prong 32 facing inwardly. The first positive member 54 is also a nub-like structure and catchably engages the first teeth 46 as shown in
As best shown in
The second prong 34 includes at least one second engaging member 35 near the distal end of the second prong 34 facing inwardly. The second engaging member 35 is a nub-like structure and catchably engages the second teeth 48 as shown in
The second prong 34 further preferably includes at least one second positive member 64 attached to a central portion of the second prong 34 facing inwardly. The second positive member 64 is also a nub-like structure and catchably engages the second teeth 48 as shown in
As best shown in
D. Alternative Embodiment
In the alternative embodiment shown in
E. Operation
In use, the user first separates the handle member 20 from the end member 40 by pulling the respective components apart. As shown in
The user thereafter positions the core 14 of the spool 12 upon the prongs 32, 34 until properly positioned. The user then inserts the tongue member 44 of the end member 40 into the core 14 until catchably engaged within the prongs 32, 34 as shown in
The positive members 54, 64 maintain a positive contacting force with the first teeth 46 and are less dependent upon the compression force applied by the core 14 of the spool 12 upon the prongs 32, 34 for engagement. Hence, if the core 14 of the spool 12 becomes deteriorated due to repeated usage, becoming wet or the like causing deformation thereof, the positive members 54, 64 will retain a positive engagement with the first teeth 46 as shown in
As to a further discussion of the manner of usage and operation of the present invention, the same should be apparent from the above description. Accordingly, no further discussion relating to the manner of usage and operation will be provided.
With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of the invention, to include variations in size, materials, shape, form, function and manner of operation, assembly, and use, are deemed to be within the expertise of those skilled in the art, and all equivalent structural variations and relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present invention.
Therefore, the foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.
| Number | Name | Date | Kind |
|---|---|---|---|
| 1825822 | Rundell | Oct 1931 | A |
| 2171648 | Ennis et al. | Sep 1939 | A |
| 2632605 | Lee | Mar 1953 | A |
| 3346208 | Hoffman et al. | Oct 1967 | A |
| 3347485 | Bundschuh | Oct 1967 | A |
| 3612423 | Bahnsen | Oct 1971 | A |
| 4235389 | Ness | Nov 1980 | A |
| 5328115 | Samuelson et al. | Jul 1994 | A |
| 5370339 | Moody et al. | Dec 1994 | A |
| 5664739 | Black | Sep 1997 | A |
| 5683058 | Schwarz et al. | Nov 1997 | A |
| 5927635 | Black | Jul 1999 | A |
| 6286777 | Black | Sep 2001 | B1 |
| 6398150 | Munter et al. | Jun 2002 | B1 |
| 6659390 | Black | Dec 2003 | B1 |
