Abstract:
Methods and apparatus are provided for cleaning jacks in portable electronic components. In one embodiment of the present invention, an adaptor plug is designed having a hollow shaft and the end of the plug is designed with holes that communication with the hollow shaft. The plug can be inserted into a jack, which can operate to open one or more switches within the jack, thereby freeing any debris that may have accumulated under the switches. Compressed air can then be applied down the hollow shaft and out the holes in the plug to displace the debris and clean the jack. In another embodiment, the end of the plug can be constructed such that it rotates about an axis to increase the likelihood that the jack will be cleaned.

Description:
CROSS-REFERENCES TO RELATED APPLICATIONS 
       [0001]    This application is a division of U.S. application Ser. No. 12/008,601, filed on Jan. 11, 2008 which claims the benefit of prior filed U.S. Provisional Application No. 60/961,384, filed Jul. 20, 2007, which is incorporated herein by reference in its entirety. 
     
    
     BACKGROUND OF THE INVENTION 
       [0002]    This relates to electronic devices and more particularly to methods and apparatus for cleaning jacks, such as audio jacks, that often are adapted to receive a plug. 
         [0003]    Portable electronic devices, such as wireless and cellular telephones, digital media players (e.g., music players and video players), and hybrid devices that combine telephone and media playing functionality are widely used in society. These devices are typically configured to provide communications to a user in one or more modes. In some of those modes, the communications can be wireless, such as via a cellular telephone network, a Wi-Fi network, or Bluetooth communications. In those instances, the user interacts with another device or location to receive information in the form of audio, video or both. In either instance, such devices often include jacks that are configured to receive a plug. The plug can provide a number of different interfaces, such as power, audio signals, control signals and data signals. 
         [0004]    One problem that can occur with such devices is that the debris can accumulate in the jack which can interfere with normal operations. For example, many individuals place their electronic devices in a large carrier, such as a purse or a briefcase. These electronic devices can include cell phones, such as an iPhone, music players, such as an iPod and/or video game playing systems. In each of those examples, as well as others, the devices all have one or more jacks, and some of those jacks include internal switches that can be OPEN or CLOSED depending on whether a plug is inserted into the jack. 
         [0005]    The present invention addresses problems related to the accumulation of one or more materials within the jack that may prevent the switches, or the entire device, from operating properly. One common jack that is often found on such devices, for example, is an audio jack. Most audio jacks include at least three internal contacts—one for a right channel, one for a left channel and one for a ground signal. In addition, some audio jacks may also include an additional contact for a microphone. 
         [0006]    When a plug is inserted into the jack, various portions of the plug may contact with various 30 portions of the jack to complete separate circuits. In addition, one or more switches are activated which, at a minimum, act to hold the plug in the jack. If debris is already present within the jack, the debris can be forced under the switch, such that it becomes difficult, if not virtually impossible, to remove without potentially damaging the device. 
         [0007]    Some individuals may attempt to clean out the debris by shaking the device, but this could potentially destroy the device if, for example, the device utilizes an internal hard drive. Even if a hard drive is not present, the potential for damage is always present if the device is significantly shaken. 
         [0008]    Another way in which individuals may try to remove the debris from the jack is by blowing into the jack. While this can occur when the user simply blows into the jack from his or her mouth, this approach can potentially introduce even more problems to the situation, as it may result in the application of moisture to the contacts. 
         [0009]    One alternative to blowing air out of one&#39;s mouth would be to apply a source of compressed air to the jack. For example, cans of compressed air are marketed for cleaning debris out of keyboards on computers, which could be applied to attempts to clean out an audio jack on a portable electronic device. Even this potential solution, however, has its drawbacks. If the jack being cleaned has switches, those switches may have closed and trapped debris within the jack that, in all likelihood, will not be removed from the mere application of compressed air. In addition, in many instances, the user will not be able to see whether the debris has been cleared out because the debris may be located under the switch. Accordingly, what is needed are methods and apparatus for providing users with the ability to clean out the jacks located on portable electronic devices. 
       BRIEF SUMMARY OF THE INVENTION 
       [0010]    Methods and apparatus are provided for cleaning out jacks that are typically located on portable electronic devices. 
         [0011]    In one embodiment, an adaptor plug is designed with an internal hollow channel, an opening at the opposite end of the plug through which air can be applied, and a series of one or more openings at the plug end that are in communication with the hollow channel to provide a way for air applied to the hollow channel to exit the plug. 
         [0012]    A small hose or other conduit can be applied to the opening through which air or compressed air can be applied. In this manner, the opening may also include apparatus to temporarily secure the conduit to the adaptor plug, in order to minimize the amount of applied air that might otherwise leak out of the adaptor during the cleaning process. A consumer could place the adaptor plug in the jack, couple the conduit to the plug, and then apply compressed air through the conduit to clean the jack. 
         [0013]    In some embodiments, a source of compressed air can also be constructed such that the adaptor plug is physically connected to the source, such that a consumer could purchase and use the apparatus as a single unit. In this manner, the consumer would simply place the adaptor plug in the jack and then further depress the source of compressed air, which would cause the compressed air to travel the length of the hollow channel and exit the holes at the end of the plug, thereby applying cleansing air to the jack. 
         [0014]    In both of these instances, the insertion of the plug into the jack would open switches within the jack, thereby freeing any debris that might have been trapped under the closed switch. The application of compressed air then moves the debris from under the switches. The application of compressed air can continue as the adaptor plug is removed from the jack, to further clean the debris from the jack. 
         [0015]    One alternative to the present invention which can further increase the cleaning capability of the device is for the end portion of the adaptor plug to be free to rotate, such that the application of compressed air causes it to rotate, thereby ensuring that compressed air is applied throughout the jack. This may be accomplished through the use of small flanges that extend within the hollow channel of the adaptor plug, and which are configured such that force from the application compressed air is directed onto the flanges causing the end portion to rotate. 
         [0016]    This embodiment may also be combined with the continued application of compressed air during removal of the adaptor plug from the jack. In this manner, debris would be forced from the jack as the adaptor plug is removed and the switches are closed. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0017]    The above and other features of the present invention, its nature and various advantages will become more apparent upon consideration of the following detailed description, taken in conjunction with the accompanying drawings, in which like reference characters refer to like parts throughout, and in which: 
           [0018]      FIG. 1  is a side view schematic diagram of an adaptor plug that is used in accordance with the principles of the present invention; 
           [0019]      FIG. 2  is a side view schematic diagram of an adaptor plug that is used in accordance with the principles of the present invention; and 
           [0020]      FIG. 3  is schematic diagram of a electronics jack cleaning device constructed in accordance with the principles of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0021]      FIG. 1  shows a side view, schematic diagram of an illustrative audio adaptor device  100 , which is constructed in accordance with the principles of the present invention. audio adaptor  100  may include plug end  102 , shaft  104  and connector end  106 . In one embodiment of the present invention, plug  102  is a 3.5 millimeter plug formed from one or more pieces of brass, a copper alloy or other suitable electrically conductive material (generally referred to hereinafter as “metal”), which can alternate with pieces of insulating material. As shown in  FIG. 1 , plug  102  is constructed of metal (as shown by reference  108 ), while shaft  104  (the remainder of adaptor plug  100 ) is constructed of insulating material. 
         [0022]    Plug  102  may extend as a channel  112  internally within shaft  104  to connector end  106 , which is also metal. It may be advantageous to form plug  102 , connector end  106  and channel  112  from a single piece of metal (referred to as post  120 ), in which case insulating rings  114 ,  116  and  118  would all be assembled by sliding them on to the single piece of metal (i.e., ring  114  would be placed first, ring  116  second and ring  118  last). Plug  102  may be constructed of any number of metal portions and insulating portions to simplify the manufacturing process. 
         [0023]    For example, all of the components that are used to construct plug  102  can placed and/or fabricated on channel portion  112  of center post  120 . In one embodiment, during the assembly process, insulating rings  114 ,  116  and  118  can be injection molded in place on post portion  120  at one time. It should be noted that while insulating rings  114 ,  116  and  118  are described as individual sub-components, that is only how the “rings” would look to a user after the assembly is complete. All of the “insulating rings” can be formed at one time from one insulating material through, for example, an injection molding process, such that all of the “insulating rings” are, in actuality, a single subassembly (which can be the situation if adaptor plug  102  were to include multiple metal components). 
         [0024]    In typical plug assemblies, post  120  is a solid shaft that provides electrical contact between the end of plug  102  and connector end  106 . In accordance with the present invention, however, post  120  includes a hollow shaft portion  112  that is in direct communication with opening  122  in connector end  106 . In addition, plug portion  102  includes one or more openings that are also in direct communication with shaft portion  112 . 
         [0025]    In accordance with the present invention, adaptor plug  100  would be inserted into a jack to be cleaned, which would result in extended portion  126  of plug portion  102  opening a switch within the jack (not shown). Compressed air or gas would then be caused to travel from opening  122 , down shaft portion  112  until it exited out holes  124  in plug portion  102 . The exiting air would dislodge debris which previously had been trapped by the closed switches (not shown) in the jack. In some embodiments, the outer surface of plug portion  102 , shaft  104 , or both may include one or more ridges, receptacles or other features extending along the axis of shaft  104  for directing or collecting debris dislodged from the jack. 
         [0026]    In some embodiments, instead of compressed air traveling through shaft portion  112  to holes  124 , a vacuum or compressor may draw in air from the area between plug  102  and the jack in which the plug is inserted/through holes  124 , and up shaft portion  112  into a receptacle. Holes  124  and shaft portion  112  may be sized such that debris in the jack may travel through plug  102  and out of the jack. 
         [0027]    Opening  122  can include a connector ring  128  or other coupling mechanism which can be used to temporarily connect a hose or other conduct (not shown) between a source of compressed air and adaptor plug  100 . In this manner, a single adaptor plug  100  can be utilized with different sources of compressed air, as each source is expended. 
         [0028]      FIG. 2  shows an alternate embodiment of the present invention in adaptor plug  200 . Adaptor plug  200  is similar to adaptor plug  100  in many aspects (in which case the same reference numerals are used). Adaptor plug  200  varies from adaptor plug  100  at least because plug portion  202  is manufactured such that it is able to rotate about axis  240 , instead of being a stationary component (e.g., plug portion  202  is rotationally mounted on shaft portion  112 ). In some embodiments, the entire plug  200  may instead rotate about axis  240 . In this instance, insulating ring  218  may be formed of insulating material that resists wear that may be caused by the rotation of plug portion  102 . 
         [0029]    In addition, the holes formed in the plug portion, in this case, holes  224 , may be formed such that one or more flanges  230  are formed within the channel portion  112  of plug portion  202 . Moreover, flanges  230  can be formed such that they are angled within channel portion  112  so that compressed air passing down channel portion  112  will be converted into rotational kinetic energy, which will cause plug portion  202  to rotate about axis  240 . The rotation of plug portion  202 , while compressed air is exiting holes  224 , may result in additional cleansing occurring within the jack (not shown). In some embodiments, the user may control the orientation of flanges  230  to vary or stop the rotation of plug portion  202 , or the user may control the friction between plug portion  202  and the audio jack (e.g., the contact between insulating ring  218  and the audio jack) to control the rotation of the apparatus. 
         [0030]    In accordance with the present invention, it also may be advantageous to continue the application of compressed air as adaptor plugs  100  and  200  are removed from the jack being cleaned. This may help force the debris that was dislodged from the switch (not shown) in the jack, to be removed from the jack entirely. In that manner, plug portion  202  would continue to rotate about axis  240  as long as compressed air was still being provided down channel portion  112 . Compressed air may be provided in bursts, or at different pressures to cause plug portion  202  to selectively rotate, and clean dirtier portions of the jack more thoroughly (e.g., by remaining longer on dirtier portions of the jack). 
         [0031]      FIG. 3  shows side schematic view of jack cleaning device  300 , which is constructed in accordance with the principles of the present invention. Cleaning device  300  includes adaptor plug  335  and compressed air source  350 . Adaptor plug  335  may be constructed in a manner similar to adaptor plugs  100  or  200  (of  FIGS. 1 and 2 ), such that adaptor plug  335  includes a plug portion  302  and a shaft portion  314 . Running the length of shaft portion  314  is channel  312 , which is in communication with a valve (not shown) that controls whether compressed air is expelled from source  350  (in which case the compressed air would travel down channel  312  and be forced out holes  324 ). Cleaning device  300  also includes sealing region  352 , which provides a region for plug portion  335  to be depressed against the body of compressed air source  350  (thereby causing the compressed air to be expelled). 
         [0032]    Cleaning device  300  provides users with a single unit that can be used to clean electronic component jacks, particularly those with switches located therein. Adaptor plugs  100  and  200  are relatively small components that may be misplaced. In addition, since the unit would be recycled or thrown away once the compressed air is expended, it may be easier to remember to replace the expended unit. On the other hand, it is also likely that the use of adaptor plugs  100  and  200  will be less expensive than the use of device  300 . Accordingly, cleaning device  300  may include a reusable compressed air source  350  that may be selectively coupled to single use or limited use adaptor plugs  335 . In some embodiments, adaptor plugs having different sizes (e.g., 3.5 mm plug, 30-pin connector plug, USB plug) may be selectively coupled to compressed air source  350 . 
         [0033]    Thus it is seen that methods and apparatus for cleaning jacks in portable electronic components are provided. It is understood that the apparatus and methods shown in the figures discussed above are merely illustrative and that these methods and apparatus may be modified, added or omitted. Those skilled in the art will appreciate that the invention can be practiced by other than the described embodiments, which are presented for purposes of illustration rather than of limitation, and the invention is limited only by the following claims.