Patent Application
20070284272
In order for the advantages of the invention to be readily understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered to be limiting of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings, in which:
For the purposes of promoting an understanding of the principles of the invention, reference will now be made to the exemplary embodiments illustrated in the drawings, and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended. Any alterations and further modifications of the inventive features illustrated herein, and any additional applications of the principles of the invention as illustrated herein, which would occur to one skilled in the relevant art and having possession of this disclosure, are to be considered within the scope of the invention.
Reference throughout this specification to “one embodiment,” “an embodiment,” or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrases “one embodiment,” “an embodiment,” and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment, different embodiments, or component parts of the same or different illustrated invention. Additionally, reference to the wording “an embodiment,” or the like, for two or more features, elements, etc. does not mean that the features are related, dissimilar, the same, etc. The use of the term “an embodiment,” or similar wording, is merely a convenient phrase to indicate optional features, which may or may not be part of the invention as claimed.
Each statement of an embodiment is to be considered independent of any other statement of an embodiment despite any use of similar or identical language characterizing each embodiment. Therefore, where one embodiment is identified as “another embodiment,” the identified embodiment is independent of any other embodiments characterized by the language “another embodiment.” The independent embodiments are considered to be able to be combined in whole or in part one with another as the claims and/or art may direct, either directly or indirectly, implicitly or explicitly.
Finally, the fact that the wording “an embodiment,” or the like, does not appear at the beginning of every sentence in the specification, such as is the practice of some practitioners, is merely a convenience for the reader's clarity. However, it is the intention of this application to incorporate by reference the phrasing “an embodiment,” and the like, at the beginning of every sentence herein where logically possible and appropriate.
For clarity it is the convention of this application to number the illustrated portions with a first digit corresponding to the first figure in which that portion appears and is numbered. For example, the coupling assembly 310 first appears numbered in
As used in this application, the term “case” includes covers, enclosures, hoods, bags, capsules, envelopes, and shells.
Looking to the figures, there is shown a case for heated appliances according to one embodiment of the invention. As a non-limiting example, the case may be used to hold, cover, and/or enclose a curling iron for hair. The illustrated case includes a sheath member 100, a restraining system 120, and a clip 160.
In operation, a user may dispose an appliance 150 into the sheath member 100. Once inserted, the user may wrap a cord of the appliance about the exterior of the sheath 100 finally coupling a portion of the cord to the clip 160, thereby fixing the cord about the sheath. The user may also actuate the restraining system 120 to tighten the sheath 100 about the appliance 150, especially near a top edge 132 and 232 of the sheath 100. Because of the unique shape of the sheath 100, the sheath 100 tightens securely about the appliance 150 even where the appliance 150 includes one or more irregular shaped portions. Further, the sheath 100 has enhanced coupling characteristics along the length of the inserted appliance 150, as will be explained later in this description.
Looking now to the particular details of the illustrated embodiment, the illustrated sheath member 100 includes a first cradle member 130 having a first top edge 132 and a first side edge 220. There is also a second cradle member 230 having a second top edge 232 and a second side edge 240. Coupled between the first cradle member 130 and the second cradle member 230 is an accordion member 210. The accordion member 210 is coupled to the first side edge 220 and the second side edge 240, thereby forming an enclosure having an opening 510 defined by the first top edge 132 and the second top edge 232. The sheath member 100 defines a cavity wherein may be disposed the appliance 150.
The accordion member 210 includes a plurality of angled members 212 and 214 angled in alternating directions. Accordingly, the accordion member 210 is biased with a flexible effective width. Force applied to the width of the accordion member may cause the accordion member 210 to change in width, by increasing and/or decreasing the distance between the first cradle member 130 and the second cradle member 230, thereby enabling a user to alter a cavity size within the sheath 100.
In the illustrated embodiment the accordion member includes a U-shaped cross-section as shown in
In one embodiment, the sheath member includes silicon rubber. In another embodiment, the sheath member consists essentially of silicone rubber. Silicone rubber polymers have a backbone of silicon oxygen linkages, the same bond that is found in quartz, glass, and sand. This is one of the main reasons that silicone rubber has such excellent high temperature properties, such as low conductivity of heat. Organic rubber has a carbon to carbon backbone. This can leave them susceptible to ozone, UV, heat and other aging factors that silicone rubber can withstand well. Further, silicone rubber has been well tested by Underwriter Laboratories, Inc. to evaluate its properties and safety. Accordingly, silicone rubber is a material of choice in many extreme environments.
Silicone rubber offers incredible resistance to extreme temperatures, being able to operate normally from minus b 100° C. to plus 300° C. or higher. In such conditions the tensile strength, elongation, tear strength and compression set can be far superior to conventional rubbers.
There are also many specialist grades of silicone rubber that offer the following qualities: steam resistance, metal detectable, glow in the dark, electrically conductive, chemical/oil/acid/gas resistance, low smoke emission and flame retardent.
Once milled and coloured the silicone rubber can be extruded into tubes, strips, solid cord or custom profiles within the size restrictions of the manufacturer. Cord can be joined to make “O” Rings and extruded profiles can also be joined to make up seals.
Silicone Rubber can also be moulded into custom shapes and designs. Heat is required to vulcanise (set) the silicone rubber. Vulcanization is normally carried out in a two-stage process at the point of manufacture into the desired shape, and then in a prolonged post-cure process.
In one embodiment, the sheath member 100 comprises a single molded and/or extruded piece.
The illustrated restraining system 120 is coupled to the sheath member 100 at the first cradle member 130 and at the second cradle member 230. The restraining system 120 has a restraining mode wherein the restraining system 120 compresses the accordion member 210 therebetween. The illustrated restraining system 120 further comprises an elongated member 140 encircling the sheath member 100 near the first top edge 132 and the second top edge 232.
The illustrated restraining system 120 further comprises a coupling protrusion 148 extending from the sheath member 100. There is also shown a plurality of apertures 142 having a first width 144 and a second width or slot 146 smaller than the first width 144. The illustrated plurality of apertures 142 are disposed in an array along a length of the elongated member 140 and sized to receive the coupling protrusion 148.
The illustrated coupling protrusion 148 is sized relative to the first and second widths 144 and 146 to enable a user to dispose the coupling protrusion 148 through the first width 144 and not through the second width or slot 146. The orientations of the plurality of apertures 142 provide that expansive force may be applied from the sheath member 100, which may increase the effective length of the elongated member 140, and may thereby direct the coupling protrusion 148 from a portion of an aperture 142 of a first width 144 to that of a second width or slot 146, thereby securing the coupling protrusion 148 therein.
Further, the illustrated elongated member 140 is coupled to the coupling protrusion 148 near a first end, wrapped about the sheath member 100, and then removably coupleable to the coupling protrusion 148 at a plurality of positions spaced from the first end of the elongated member 140.
Accordingly, the user may cinch the elongated member 140 about the sheath member 100, altering an effective length/circumference of the elongated menmber 140. This enables the user to compress the sheath member 100, thereby applying a force to the accordion member 210 which may bend in response, thereby reducing an effective volume and/or interior width of the sheath member 100. Advantageously, this may more securely couple the sheath member 100 to an appliance, such as by frictional coupling. Further, coupling enhancement may be provided by the clip member 160.
The illustrated clip member 160 is coupled to the first cradle member 130 near a bottom portion 110 of the sheath member 100 (near an opposite end of the sheath member 100 from the restraining system 120). Accordingly, a cord, such as, but not limited to a power cord of an appliance, may be wrapped about the sheath member 100 winding towards the clip member 160. At a desired point on the cord, the cord may be coupled to the clip member 160, as the clip member 160 has biased arms defining a narrowed portion through which a portion of the cord may be disposed and therein held. As a user may wrap the cord according to a desired tension, such may further apply force to the accordion member 210, thereby further enhancing coupling of the sheath member 100 to the appliance 150.
It is understood that the above-described embodiments are only illustrative of the application of the principles of the present invention. The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiment is to be considered in all respects only as illustrative and not restrictive. The scope of the invention is, therefore, indicated by the appended claim rather than by the foregoing description. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
It is expected that there could be numerous variations of the design of this invention. An example is that there may be ornamentation on a surface thereof that may include relief work and/or protrusions. There may be coloring and/or patterning thereon. The shape of an embodiment may vary from the exact design illustrated. There may be ribs, bubbles, protrusions, cavities, etc.
Further, while the accordion member is shown as having substantially sharp angular zig-zag portions 212 and 214, wherein the change from one portion to another is characterized by a sharp change in angle, it is understood that the change may be characterized by a curve or another similar shape. More, the curvature of the zig-zag may be different along different portions of the sheath.
Finally, it is envisioned that the components of the device may be constructed of a variety of materials, such as plastics, rubbers, natural fibers, woven materials, metals, ceramics, and composites. Further, while silicone rubber is disclosed as a material of choice, it is understood that in one embodiment of the invention any material having sufficient thermal resistivity (low thermal conductivity) and flexibility may be used. In another embodiment, a plurality of materials may be used, such as, but not limited to, using a rigid material for the cradles and a flexible material for the accordion member.
Thus, while the present invention has been fully described above with particularity and detail in connection with what is presently deemed to be the most practical and preferred embodiment of the invention, it will be apparent to those of ordinary skill in the art that numerous modifications, including, but not limited to, variations in size, materials, shape, form, function and manner of operation, assembly and use may be made, without departing from the principles and concepts of the invention as set forth in the claims.
