The present invention relates to an electrical charge dissipating device, and more particularly to a conductive assembly for directing electrostatic charge to ground, which electrostatic charge may be created through the use of rotating equipment.
No federal funds were used to develop or create the invention disclosed and described in the patent application.
Not Applicable
A portion of the disclosure of this patent document may contain material that is subject to copyright and trademark protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyrights whatsoever. CDR and Current Diverter Ring are the exclusive trademarks of Inpro/Seal LLC.
In order that the advantages of the invention will be readily understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered limited of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings.
Before the various embodiments of the present invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that phraseology and terminology used herein with reference to device or element orientation (such as, for example, terms like “front”, “back”, “up”, “down”, “to ”, “bottom”, and the like) are only used to simplify description of the present invention, and do not alone indicate or imply that the device or element referred to must have a particular orientation, In addition, terms such as “first”, “second”, and “third” are used herein and in the appended claims for purposes of description and are not intended to indicate or imply relative importance or significance. Additionally, the terms radial CDR 80, arc CDR 80a, and/or CDR may be used interchangeably when referring to generalities of configuration thereof, methods and/or materials of construction, and/or other general features as may the terms conductive assembly 10, 86. Finally, any dimensions, geometries, and/or other physical characteristics described herein are not limiting, but are for illustrative purposes only.
The radial CDR 80, one embodiment of which is shown in
A radial CDR 80 is one embodiment of a current dissipating device, an illustrative embodiment of which is shown in
The illustrative embodiment of the radial CDR 80 shown herein may include three radial channels 82 extending from the radial exterior surface 85a to the radial interior surface 85b of the radial CDR 80. Each radial channel 82 may include a radial channel shelf 83, which is best shown in
A conductive assembly 86 may be configured to fit within the radial channel 82. One embodiment of a conductive assembly 86 that may be positioned in a radial channel 82 is shown in detail in
The conductive assemblies 86 in the radial CDR 80 may be configured to be replaceable. That is, once the contact portion 86b of a conductive assembly 86 has been exhausted, or the conductive assembly 86 should otherwise be replaced or not perform adequately, the user may remove the conductive assembly 86 from the radial channel 82 and insert anew conductive assembly 86 therein.
An arc CDR 80a is another embodiment of a current dissipating device and a second embodiment of a CDR. A first embodiment of an arc CDR 80a is shown in
The illustrative embodiments of the arc GDR 80a as shown herein may be configured such that they function substantially the same as the radial CDR 80 shown in
The illustrative embodiments of an arc CDR 80a pictured herein may be configured such that the arc CDR 80a may extend beyond 180 degrees of a circle. More specifically, the illustrative embodiment of the arc CDR 80a may be configured as approximately 200 degrees of a full circle. However, in other embodiments the length of the arc CDR 80a may be greater than 200 degrees of a full circle. In still other embodiments, the length of the arc CDR 80a may be less than 180 degrees of a full circle. Accordingly, the length of an arc CDR 80a in no way limits the scope of the present disclosure.
The illustrative embodiment of an arc CDR 80a shown in
The illustrative embodiment of an arc CDR 80a shown in
The conductive assemblies 86 in the arc CDR 80a may be configured to be replaceable. That is, once the contact portion 86b of a conductive assembly 86 has been exhausted, or the conductive assembly 86 should otherwise be replaced, the user may remove the conductive assembly 86 (and/or plug 87 if one is used) from the radial channel 82 and insert a new conductive assembly 86 therein. The number of radial channels 82 formed in an arc CDR 80a in no way limits the scope thereof, and similarly, the number of conductive assemblies engaged therewith in no way limits the scope of an arc CDR 80a.
A second illustrative embodiment of a conductive assembly 10 that may be used with electric charge dissipating devices (e.g., radial CDR 80, arc CDR 80a, etc.) is shown in
In the illustrative embodiment, a plurality of fibers 20 may be positioned within and retained by a casing 30. The fibers 20 in the illustrative embodiment may be carbon filaments with a generally low electrical impedance. The optimal size and/or number of the fibers 20 will vary from one application to the next, but it is contemplated that many applications will require fibers 20 having a diameter between 0.000001 mm and 20 mm and a length between 1 mm and 100 mm. However, the scope of the present disclosure is in no way limited by the size of the fibers 20 and/or the material used for the construction thereof. One fiber 20 that is suitable for some applications is a Panex 35 Continuous Tow sold by Zoltek Corp. based in St. Louis, Mo. The tensile strength of this material is approximately 4137 MPa, the tensile modulus approximately 242 GPa, the electrical resistivity approximately 0.00155 ohm-cm, the density approximately 1.81 g/cc, the fiber diameter approximately 7.2 microns, and the carbon content is approximately 95%.
As shown, the casing 30 may include a compressed portion 32 and a cylinder 34. The compressed portion 32 may be located generally adjacent the proximal ends 24 of the fibers 20. Specifically, in the second illustrative embodiment of a conductive assembly 10 the end of the casing 30 at the retention end 16 of the conductive assembly 10 and the proximal ends 24 of the fibers 20 may be coterminous. The compressed portion 32 may be configured to have a plurality of tables 32b, which tables 32b may be configured as relatively flat portions. The tables 32b may be separated by vertices 32a. In the second illustrative embodiment, the compressed portion 32 may be formed with eight vertices 32a that may be equally spaced about the periphery of the casing 30, and one table 32b may be positioned between adjacent vertices 32a for a total of eight tables 32b and eight vertices 32a. As best shown in
Generally, the optimal configuration of the compressed portion 32 will vary depending on the application of the conductive assembly 10. It is contemplated that for many applications, at least one design consideration for the conductive assembly 10 will comprise the force required to remove a fiber 20 from the casing 30. This force will at least depend on the length of fiber 20 positioned within the casing 30, any external force applied to the external surface of the compressed portion 32, and/or the configuration of the compressed portion (e.g., dimension, geometry, etc.). Accordingly, the optimal distance that the distal ends 22 of the fibers 20 extend from the cylinder 34 will vary from one application of the conductive assembly 10 to the next, and is therefore in no way limiting to the scope thereof. It is contemplated that for some applications, the optimal distance the distal ends 22 of the fibers 20 extend from the cylinder 34 will be between 0.1 mm and 25 mm. Furthermore, the scope of the present disclosure is in no way limited by the various dimensions and/or configurations described above.
in second illustrative embodiment of a conductive assembly 10 pictured in
One illustrative embodiment of a casing 30 that may be used with a conductive assembly 10 is shown in
As shown, the casing 30 may include at least one ramp 6, 37. In the illustrative embodiment, the casing 30 may include an exterior ramp 36 and an interior ramp 37 on each end of the casing 30. An exterior ramp 36 may facilitate ease of insertion of the conductive assembly 10 into a radial channel 82. An interior ramp 87 may facilitate eased insertion of the fibers 20 into the central bore of the casing 30. Additionally, the presence of a ramp 36, 37 and configuration thereof may mitigate against inadvertently shearing and/or damaging a fiber 20 during manufacture and/or use of the conductive assembly 10. In the illustrative embodiment, the ramps 36, 37 may be angled at 45 degrees with respect to the axial dimension of the casing 30, but other configurations may be used without limitation. For example, in an embodiment not pictured herein the exterior ramp 36 may be angled at 60 degrees with respect to the axial dimension of the casing 30 and the interior ramp 37 may be angled at 65 degrees with respect thereto. Additionally, the exterior ramp 36 on one end of the casing 30 may be differently configured than the exterior ramp 36 on the opposite end of the casing 30, which is also true for the interior ramps 37. Accordingly, the specific configuration of the ramps 36, 37 in no way limits the scope of the present disclosure.
Additionally, the length of either ramp 36, 37 may vary from one embodiment of the casing to the next. The specific length of any ramp 36, 37 may depend at least upon the radial thickness of the casing 30 and the configuration of the opposing ramp 36, 37 on a given end of the casing 30. Accordingly, the length of any ramp 36, 37 in no way limits the scope of the present disclosure.
Other embodiments of conductive assemblies 10 are shown in
A third illustrative embodiment of a conductive assembly 10 is pictured in
A fourth illustrative embodiment of a conductive assembly 10 is pictured in
A fifth illustrative embodiment of a conductive assembly 10 is pictured in
A sixth illustrative embodiment of a conductive assembly 10 is pictured in
A seventh illustrative embodiment of a conductive assembly 10 is pictured in
Although the embodiments of a conductive assembly 10 pictured and described herein may be specifically configured for use with a radial CDR 80 and/or arc CDR 80a, the scope of the conductive assembly 10 is not so limited. The conductive assembly 10 may he used with any type of electrical charge transmitting device, including but not limited to the devices disclosed in U.S. patent application Ser. Nos, 13/710,231; 13/089,017; 12/757,040; 13/114,995; and 13/920,376; and U.S. Pat. No. 7,521,827.
Having described the preferred embodiments, other features of the CDR 80, 80a, and/or conductive assemblies 10, 86 will undoubtedly occur to those versed in the art, as will numerous modifications and alterations in the embodiments as illustrated herein, all of which may be achieved without departing from the spirit and scope of the CDR 80, 80a and/or conductive assembly 10, 86. It should be noted that the CDR 80, 80a and conductive assembly 10, 86 are not limited to the specific embodiments pictured and described herein, but are intended to apply to all similar apparatuses and methods for dissipating and/or conducting an electrical charge from one element to another. Modifications and alterations from the described embodiments will occur to those skilled in the art without departure from the spirit and scope of the CDR 80, 80a and/or conductive assembly 10, 86.
The present utility patent application claims priority from provisional U.S. Pat. App. No. 61/883,060 filed on Sep. 26, 2013, which application is incorporated by reference herein in its entirety.
Number | Date | Country | |
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61883060 | Sep 2013 | US |