Patent Publication Number: US-2022232306-A1

Title: Fixation methods and devices for a panel mounted device

Description:
CLAIM OF PRIORITY 
     This application is a continuation of U.S. patent application Ser. No. 15/969,661, filed May 2, 2018, which is hereby incorporated by reference herein in its entirety. 
    
    
     BACKGROUND 
     The present disclosure relates to devices that are configured to be mounted to a planar mounting panel, including, for example, a wall or ceiling of a home or other building. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       In the drawings, which are not necessarily drawn to scale, like numerals may describe similar components in different views. Like numerals having different letter suffixes may represent different instances of similar components. The drawings illustrate generally, by way of example, but not by way of limitation, various embodiments discussed in the present document. 
         FIGS. 1A-1C  depict an example device configured to be mounted to a planar mounting panel. 
         FIG. 2  depicts another example device configured to be mounted to a planar mounting panel. 
         FIG. 3  depicts another example device configured to be mounted to a planar mounting panel. 
         FIG. 4  depicts another example device configured to be mounted to a planar mounting panel. 
         FIG. 5  depicts another example device configured to be mounted to a planar mounting panel. 
         FIGS. 6A and 6B  depict an example friction inducing member of a device configured to be mounted to a planar mounting panel. 
         FIG. 7  depicts another example friction inducing member of a device configured to be mounted to a planar mounting panel. 
         FIG. 8  depicts another example friction inducing member of a device configured to be mounted to a planar mounting panel. 
         FIG. 9  depicts another example friction inducing member of a device configured to be mounted to a planar mounting panel. 
         FIG. 10  depicts another example friction inducing member of a device configured to be mounted to a planar mounting panel. 
         FIG. 11  is a flowchart depicting a method of making a device configured to be mounted to a planar mounting panel. 
     
    
    
     DETAILED DESCRIPTION 
     The present inventor(s) have recognized, inter alia, that a friction inducing device, for example, gasket may be used to ease the installation and uninstallation of devices by eliminating the inherent slack of dogleg fixation mechanisms with the integration of a durable friction element to consistently manage dogleg screw movement. 
     In one example, a device is configured to be mounted to a planar mounting panel, including, for example, a wall or ceiling of a home or other building. The device includes a housing, a fastener, a dogleg tab and gasket friction inducing member. The housing is configured to be received in an aperture in the mounting panel and includes a housing aperture. The fastener is disposed in the housing aperture. The dogleg tab is operatively coupled to one end of the fastener. The dogleg tab is configured to be disposed in a retracted position and to be disposed in an engagement position, in which engagement position the dogleg tab is disposed to engage an inside surface of the mounting panel. The friction inducing member is fixedly attached to the housing adjacent the housing aperture and friction-fit to the fastener. 
     As used in the present disclosure, “friction-fit” can be a mechanical coupling between components, which may also be referred to as interference-fit, shrink-fit, or press-fit, and which fastens two components by an induced force of friction therebetween. A press-fit, for example, can be achieved by pressing a shaft into an aperture, in which an outer diameter of the shaft is larger than an inner diameter of the aperture into which the shaft is pressed. A shrink-fit, as another example, can be achieved by heating an enveloping component, assembling the enveloping component into position while hot, and allowing the enveloping component to cool and contract back to a former size at ambient temperature. The compression that results as the enveloping part cools interferes or causes friction with the component enveloped by the enveloping part. 
     A variety of products are configured to be attached to a planar mounting panel, including, for example, to the wall or ceiling of a home or other building. Example devices installed, uninstalled, or retrofitted in this manner include speakers, home/building security and/or automation sensors, home/building security and/or automation panel controllers, among others. In such circumstances, the outer face of the mounting panel is accessible but the inner face is not. As such, these types of products may be disposed in an aperture that is cut into the mounting panel from the outer side and the device is then attached to the panel, in some cases by a fixation mechanism that is hidden on the inner side of the panel and is actuated from the outer side. 
     One type of such fixation mechanism is a dogleg mechanism, which functions to move between a retracted position and an engagement position. In the retracted position, a dogleg tab of the mechanism is retracted to allow the device to be inserted into the mounting panel aperture without the dogleg tab striking or otherwise interfering with the panel. After the device is inserted into the panel aperture, a fastener attached to the dogleg tab can be engaged from the outer side of the panel to move the dogleg tab into the engagement position on the inner side of the panel. The fastener can then be further engaged to cause the dogleg tab to move toward the inner side of the panel to cause the device to be clamped to the panel between the dogleg tab on the inner side of the panel and a face flange of the device housing on the outer side of the panel. 
     When shipping and installing these types of devices, the doglegs are typically tightened slightly within their retracted positions to keep them from swinging outward until the screws are being tightened to actuate the dogleg mechanism. One problem that can occur when tightening the screw at installation is that the dogleg can bind within its recess until loosened to unbind it and then retightened to actuate the dogleg mechanism. Another problem is when uninstalling the product, the doglegs should end up fully retracted and should stay this way as the other doglegs are dealt with, but instead they are loose and may wiggle out of the retracted position or, in some situations, gravity will constantly pull them out which makes proper product removal very difficult. 
     The present inventor(s) have recognized that, inter alia, application of friction between the device housing to which the dogleg screw fixation mechanism is attached and the fastener of the dogleg mechanism can inhibit the dogleg from freely swinging into and out of the engagement and/or retracted positions. To secure the dogleg tab of the fixation mechanism in this manner the friction device can cause a friction force between the fixation fastener and the friction device that is equal to or greater than a target threshold, including, e.g., a threshold that is greater than the weight of the dogleg tab. The friction device/method should be durable to last for many in/out cycles and over many years without significant loss of function. The friction device/method should provide a proper and consistent amount of friction to improve the user experience with the product for which the friction device is employed. 
     Another method to attempt to retain the dogleg involves friction between the dogleg and the recessed area of the product to retain it. This requires that the swinging/twisting of the dogleg to be strong enough to overcome the retention friction. 
     Some devices that include a dogleg fixation mechanism include a friction fit retention feature that is meant to retain the dogleg tab in the retracted position. Additionally, it is not uncommon for threads in the dogleg tab to wear quickly and loose friction with the threaded fastener attached thereto. However, when the threads between the fastener and dogleg tab are stripped (for example from wear over time), it may be difficult or impossible to disengage the dogleg tab from the friction fit retention mechanism (or to reengage the dogleg back into the retention mechanism) and therefore difficult or impossible to move the dogleg mechanism into the engagement position to attach the device to the mounting panel (or move the dogleg out of the engagement position and retain it back in the retracted position to remove the device). In such situations, a friction inducing device in accordance with this disclosure can be employed between the fastener and the dogleg tab to ameliorate in part or in whole issues associated with the weakening thread friction described above. 
       FIGS. 1A-1C  depict an example device  100 , which, in this example, is a wall or ceiling mounted speaker configured to be mounted to a planar mounting panel. Speaker  100  includes housing  102  and dogleg fixation mechanism  104 . Housing  102  is configured to be received in an aperture in the mounting panel, including, for example, an aperture cut into a drywall or other material wall or ceiling. Housing  102  includes a plurality of housing apertures  106  and face flange  108 , which extends outward around part or all of the periphery of the housing. 
     Each dogleg mechanism  104  includes fastener  110 , dogleg tab  112 , and elastomeric gasket  114 . An elastomeric gasket is one example of a friction inducing member in accordance with this disclosure. Fastener  110  is disposed in housing aperture  106 . Dogleg tab  112  is operatively coupled to one end of fastener  110 . Dogleg tab  112  can include a general “L” shape with a lateral flange  111  extending approximately perpendicular from fastener  108  and a longitudinal flange  113  extending perpendicular from the lateral flange and parallel to the fastener. Dogleg tab  112  is configured to be disposed in a retracted position (shown in  FIGS. 1A and 1B ) and to be disposed in an engagement position (shown in  FIG. 1C ), in which engagement position the dogleg tab is disposed to engage an inside surface of the mounting panel to which speaker  100  is mounted. 
     Elastomeric gasket  114  is fixedly attached to housing  102  adjacent housing aperture  106  and friction-fit to fastener  110 . In an example, elastomeric gasket  114  can be threadably engaged by fastener  110 . In the example of  FIGS. 1A-1C , gasket  114  is disposed within housing aperture  106 . Gasket  114  may be fixed to housing  102  in a variety of ways, including friction-fitting the gasket into aperture  102  and/or adhering the gasket therein. In examples, the outer diameter of gasket  114  is greater than an inner diameter of housing aperture  110 . Gasket  114  may be, for example, a cylindrical plug type gasket or other shape that matches the profile of housing aperture  102  such that gasket  114  may be received therein and plug a portion (for example, end) of the aperture. Additional examples and details of a friction inducing gasket in accordance with this disclosure is described below with reference to  FIGS. 2-5 . 
       FIG. 1C  depicts speaker device  100  attached to planar mounting panel  116  with dogleg tab  112  of dogleg mechanism  104  in an engagement position (shown in  FIG. 1C ), in which engagement position the dogleg tab engages the inside surface of mounting panel  116  to clamp device  100  to panel  116  between tab  112  and housing peripheral face flange  108 . Elastomeric gasket  114  is configured to inhibit dogleg tab  112  from freely swinging into and out of the engagement and/or retracted positions. For example, in the orientation illustrated in  FIG. 1C  with device  100  mounted to a vertical wall, if dogleg tab  112  becomes disengaged from a retention mechanism or no retention mechanism is included in device  100 , dogleg tab  112  on the lower part of device  100  may swing into the engagement position when an installer attempts to insert device  100  into the aperture in panel  116 . The same issue with the position of dogleg tab  112  could also occur during an uninstallation of device  100 , making it difficult to remove device  100  from panel  116 . Elastomeric gasket  114  can, however, inhibit dogleg tab  112  from freely swinging into and out of the engagement and/or retracted positions to assist in installation, uninstallation, and/or retrofitting of device  100  in the aperture of panel  116 . In an example, elastomeric gasket  114  can be configured to cause a friction force between fastener  110  and gasket  114  that is equal to or greater than a target threshold, including a threshold that is greater than the weight of dogleg tab  112 . 
       FIG. 2  depicts a partial view of another example device  200 , which may be, for example, a wall or ceiling mounted speaker configured to be mounted to a planar mounting panel in a similar manner as the example of  FIGS. 1A-1C . Device  200  includes housing  202  and dogleg fixation mechanism  204 . Housing  202  is configured to be received in an aperture in the mounting panel, including, for example, an aperture cut into a drywall or other material wall or ceiling. Housing  202  includes housing aperture  206 , through which threaded fastener  208  of dogleg mechanism  204  is arranged. 
     Each dogleg mechanism  204  includes fastener  208 , dogleg tab  210 , and elastomeric gasket  212 . Fastener  208  is disposed in housing aperture  206 . Dogleg tab  210  is operatively coupled to one end of fastener  208 . Dogleg tab  210  is configured to be disposed in a retracted position (shown in  FIG. 2 ) and to be disposed in an engagement position, in which engagement position the dogleg tab is disposed to engage an inside surface of the mounting panel to which example device  200  is mounted. 
     Elastomeric gasket  212  is fixedly attached to housing  202  adjacent housing aperture  206  and friction-fit to fastener  208 . In an example, gasket  212  is threadably engaged by fastener  208 . In the example of  FIG. 2 , gasket  212  is disposed outside one end of housing aperture  206 . Gasket  212  is axially aligned with housing aperture  206  along central axis  214 . Gasket  212  may be fixed to housing  202  in a variety of ways, including adhering the gasket to the housing. 
     As depicted in the partial and detail views of  FIG. 2 , example elastomeric gasket  212  is flat ring-type gasket, which includes a minor cylindrical peripheral surface connected to major circular surfaces. In this example, elastomeric gasket  212  includes through hole  216 . In an example, through hole  216  is a pilot hole for receiving fastener  208  and has an inner diameter that is smaller than an outer diameter of fastener  208 . For example, the inner diameter of the pilot hole  216  in gasket  212  can be less than the outer diameter of the threads of fastener  208 . In other examples, however, gasket  212  (and other elastomeric gaskets in accordance with this disclosure) may not include a pilot/through hole for receiving a fastener of a dogleg mechanism, and, instead, the fastener may be driven through the gasket to friction-fit the gasket to the fastener. 
     Example device  200  including elastomeric gasket  212  may function in a similar manner as the example of  FIGS. 1A-1C  to assist in installation, uninstallation, and/or retrofitting of device  200  in an aperture in a planar mounting panel. For example, elastomeric gasket  212  is configured to inhibit dogleg tab  210  from freely swinging into and out of the engagement and/or retracted positions. For example, in a vertically oriented panel mount, if dogleg tab  210  becomes disengaged from a retention mechanism or no retention mechanism is included in device  200 , dogleg tab  210  may swing into the engagement position when an installer attempts to mount device  200  to a vertically oriented mounting panel. The same issue with the position of dogleg tab  210  could also occur during an uninstallation of device  200 , making it difficult to remove the device from the panel for service, replacement, upgrades, etc. Elastomeric gasket  212  can, however, inhibit dogleg tab  210  from freely swinging into and out of the engagement and/or retracted positions. In an example, elastomeric gasket  212  can be configured to cause a friction force between fastener  208  and gasket  212  that is equal to or greater than a target threshold, including a threshold that is greater than the weight of dogleg tab  210 . 
       FIG. 3  depicts a partial view of another example device  300 , which may be, for example, a wall or ceiling mounted speaker configured to be mounted to a planar mounting panel in a similar manner as the example of  FIGS. 1A-1C . Device  300  includes housing  302  and dogleg fixation mechanism  304 . Housing  302  is configured to be received in an aperture in the mounting panel, including, for example, an aperture cut into a drywall or other material wall or ceiling. Housing  302  includes housing aperture  306 , through which threaded fastener  308  of dogleg mechanism  304  is arranged. 
     Each dogleg mechanism  304  includes fastener  308 , dogleg tab  310 , and elastomeric gasket  312 . Fastener  308  is disposed in housing aperture  306 . Dogleg tab  310  is operatively coupled to one end of fastener  308 . Dogleg tab  310  is configured to be disposed in a retracted position (shown in  FIG. 3 ) and to be disposed in an engagement position, in which engagement position the dogleg tab is disposed to engage an inside surface of the mounting panel to which example device  300  is mounted. 
     Elastomeric gasket  312  is fixedly attached to housing  302  adjacent housing aperture  306  and friction-fit to fastener  308 . In an example, gasket  312  is threadably engaged by fastener  308 . In the example of  FIG. 3 , gasket  312  is disposed outside one end of housing aperture  306 . Gasket  312  may be axially aligned with housing aperture  306  along a central axis. Gasket  312  may be fixed to housing  302  in a variety of ways, including adhering the gasket to the housing. 
     As depicted in the partial and detail views of  FIG. 3 , example elastomeric gasket  312  is cylindrical cap type gasket, which includes a major cylindrical peripheral surface connected to major circular surface(s) at the end(s) thereof. In this example, elastomeric gasket  312  includes through hole  316 . In an example, through hole  316  is a pilot hole for receiving fastener  308  and has an inner diameter that is smaller than an outer diameter of fastener  308 . For example, the inner diameter of the pilot hole  316  in gasket  312  can be less than the outer diameter of the threads of fastener  308 . In other examples, however, gasket  312  (and other elastomeric gaskets in accordance with this disclosure) may not include a pilot/through hole for receiving a fastener of a dogleg mechanism, and, instead, the fastener may be driven through the gasket to friction-fit the gasket to the fastener. 
     Example device  300  including elastomeric gasket  312  may function in a similar manner as the example of  FIGS. 1A-1C  to assist in installation, uninstallation, and/or retrofitting of device  300  in an aperture in a planar mounting panel. For example, elastomeric gasket  312  is configured to inhibit dogleg tab  310  from freely swinging into and out of the engagement and/or retracted positions. For example, in a vertically oriented panel mount, if dogleg tab  310  becomes disengaged from a retention mechanism or no retention mechanism is included in device  300 , dogleg tab  310  may swing into the engagement position when an installer attempts to mount device  300  to a vertically oriented mounting panel. The same issue with the position of dogleg tab  310  could also occur during an uninstallation of device  300 , making it difficult to remove the device from the panel for service, replacement, upgrades, etc. Elastomeric gasket  312  can, however, inhibit dogleg tab  310  from freely swinging into and out of the engagement and/or retracted positions. In an example, elastomeric gasket  312  can be configured to cause a friction force between fastener  308  and gasket  312  that is equal to or greater than a target threshold, including a threshold that is greater than the weight of dogleg tab  310 . 
       FIG. 4  depicts a partial view of another example device  400 , which may be, for example, a wall or ceiling mounted speaker configured to be mounted to a planar mounting panel in a similar manner as the example of  FIGS. 1A-1C . Device  400  includes housing  402  and dogleg fixation mechanism  404 . Housing  402  is configured to be received in an aperture in the mounting panel, including, for example, an aperture cut into a drywall or other material wall or ceiling. Housing  402  includes housing aperture  406 , through which threaded fastener  408  of dogleg mechanism  404  is arranged. 
     Each dogleg mechanism  404  includes fastener  408 , dogleg tab  410 , and elastomeric gasket  412 . Fastener  408  is disposed in housing aperture  406 . Dogleg tab  410  is operatively coupled to one end of fastener  408 . Dogleg tab  410  is configured to be disposed in a retracted position (shown in  FIG. 4 ) and to be disposed in an engagement position, in which engagement position the dogleg tab is disposed to engage an inside surface of the mounting panel to which example device  400  is mounted. 
     Elastomeric gasket  412  is fixedly attached to housing  402  adjacent housing aperture  406  and friction-fit to fastener  408 . In an example, gasket  412  is threadably engaged by fastener  408 . In the example of  FIG. 4 , gasket  412  is disposed within housing aperture  406 . Gasket  412  may be axially aligned with housing aperture  406  along a central axis. Gasket  412  may be fixed to housing  402  in a variety of ways, including press fitting within and/or adhering the gasket to housing aperture  406 . 
     As depicted in the partial and detail views of  FIG. 4 , example elastomeric gasket  412  is cylindrical plug type gasket, which is affixed to housing  402  within housing aperture  406 , and which includes a major cylindrical peripheral surface connected to two major circular surfaces at the ends thereof. In this example, elastomeric gasket  412  includes through hole  416 . In an example, through hole  416  is a pilot hole for receiving fastener  408  and has an inner diameter that is smaller than an outer diameter of fastener  408 . For example, the inner diameter of the pilot hole  416  in gasket  412  can be less than the outer diameter of the threads of fastener  408 . In other examples, however, gasket  412  (and other elastomeric gaskets in accordance with this disclosure) may not include a pilot/through hole for receiving a fastener of a dogleg mechanism, and, instead, the fastener may be driven through the gasket to friction-fit the gasket to the fastener. 
     Example device  400  including elastomeric gasket  412  may function in a similar manner as the example of  FIGS. 1A-1C  to assist in installation, uninstallation, and/or retrofitting of device  400  in an aperture in a planar mounting panel. For example, elastomeric gasket  412  is configured to inhibit dogleg tab  410  from freely swinging into and out of the engagement and/or retracted positions. For example, in a vertically oriented panel mount, if dogleg tab  410  becomes disengaged from a retention mechanism or no retention mechanism is included in device  400 , dogleg tab  410  may swing into the engagement position when an installer attempts to mount device  400  to a vertically oriented mounting panel. The same issue with the position of dogleg tab  410  could also occur during an uninstallation of device  400 , making it difficult to remove the device from the panel for service, replacement, upgrades, etc. Elastomeric gasket  412  can, however, inhibit dogleg tab  410  from freely swinging into and out of the engagement and/or retracted positions. In an example, elastomeric gasket  412  can be configured to cause a friction force between fastener  408  and gasket  412  that is equal to or greater than a target threshold, including a threshold that is greater than the weight of dogleg tab  410 . 
       FIG. 5  depicts a partial view of another example device  500 , which may be, for example, a wall or ceiling mounted speaker configured to be mounted to a planar mounting panel in a similar manner as the example of  FIGS. 1A-1C . Device  500  includes housing  502  and dogleg fixation mechanism  504 . Housing  502  is configured to be received in an aperture in the mounting panel, including, for example, an aperture cut into a drywall or other material wall or ceiling. Housing  502  includes housing aperture  506 , through which fastener  508  of dogleg mechanism  504  is arranged. 
     Example device  500  is the same as example device  400 , except that dogleg mechanism  504  includes two friction inducing elastomeric gaskets, one of which is affixed to housing  502  and the other of which is affixed to a dogleg tab of dogleg mechanism  504 . In  FIG. 5 , each dogleg mechanism  504  includes fastener  508 , dogleg tab  510 , first elastomeric gasket  512  and second elastomeric gasket  514 . Fastener  508  is disposed in housing aperture  506 . Dogleg tab  510  is operatively coupled to one end of fastener  508 . Dogleg tab  510  is configured to be disposed in a retracted position (shown in  FIG. 5 ) and to be disposed in an engagement position, in which engagement position the dogleg tab is disposed to engage an inside surface of the mounting panel to which example device  500  is mounted. 
     Elastomeric gasket  512  is fixedly attached to housing  502  adjacent housing aperture  506  and friction-fit to fastener  508 . In an example, gasket  512  is threadably engaged by fastener  508 . In the example of  FIG. 5 , gasket  512  is disposed within housing aperture  506 . Gasket  512  may be axially aligned with housing aperture  506  along a central axis. Gasket  512  may be fixed to housing  502  in a variety of ways, including press fitting within and/or adhering the gasket to housing aperture  506 . 
     As depicted in the partial and detail views of  FIG. 5 , first elastomeric gasket  512  is cylindrical plug type gasket, which is affixed to housing  502  within housing aperture  506 , and which includes a major cylindrical peripheral surface connected to two major circular surfaces at the ends thereof. In this example, first gasket  512  includes through hole  516 . In an example, through hole  516  is a pilot hole for receiving fastener  508  and has an inner diameter that is smaller than an outer diameter of fastener  508 . For example, the inner diameter of the pilot hole  516  in first gasket  512  can be less than the outer diameter of the threads of fastener  508 . In other examples, however, first gasket  512  (and other elastomeric gaskets in accordance with this disclosure) may not include a pilot/through hole for receiving a fastener of a dogleg mechanism, and, instead, the fastener may be driven through the gasket to friction-fit the gasket to the fastener. 
     Second gasket  514  is fixedly attached to dogleg  510  adjacent dogleg aperture and friction-fit to fastener  508 . In an example, second gasket  514  is threadably engaged by fastener  508 . In the example of  FIG. 5 , gasket  514  is affixed to one end of dogleg tab  510  to which an end of fastener  508  is operatively coupled. Gasket  514  may be axially aligned with dogleg aperture and fastener  508  along a central axis. Gasket  514  may be fixed to dogleg  510  in a variety of ways, including adhering the gasket to the dogleg. 
     Second elastomeric gasket  514  is flat ring-type gasket, which includes a minor cylindrical peripheral surface connected to major circular surfaces. In this example, second elastomeric gasket  514  includes through hole  518 . In an example, through hole  518  is a pilot hole for receiving fastener  508  and has an inner diameter that is smaller than an outer diameter of fastener  508 . For example, the inner diameter of the pilot hole  518  in second gasket  514  can be less than the outer diameter of the threads of fastener  508 . In other examples, however, second gasket  514  (and other elastomeric gaskets in accordance with this disclosure) may not include a pilot/through hole for receiving a fastener of a dogleg mechanism, and, instead, the fastener may be driven through the gasket to friction-fit the gasket to the fastener. 
     In the example of  FIG. 5 , first and second elastomeric gaskets  512  and  514  are different, i.e. first gasket  512  is a cylindrical plug-type gasket affixed, e.g., press-fit within housing aperture  506  and second gasket  514  is a flat ring-type gasket, e.g., adhered to one end of dogleg tab  510 . However, in other examples including a plurality of friction inducing gaskets in accordance with this disclosure, the gaskets may be the same. 
     First elastomeric gasket  512  is configured to inhibit dogleg tab  510  from freely swinging into and out of the engagement and/or retracted positions. For example, in a vertically oriented panel mount, if dogleg tab  510  becomes disengaged from a retention mechanism or no retention mechanism is included in device  500 , dogleg tab  510  may swing into the engagement position when an installer attempts to mount device  500  to a vertically oriented mounting panel. The same issue with the position of dogleg tab  510  could also occur during an uninstallation of device  500 , making it difficult to remove the device from the panel for service, replacement, upgrades, etc. First elastomeric gasket  512  can, however, inhibit dogleg tab  510  from freely swinging into and out of the engagement and/or retracted positions. In an example, first gasket  512  can be configured to cause a friction force between fastener  508  and first gasket  512  that is equal to or greater than a target threshold, including a threshold that is greater than the weight of dogleg tab  510 . 
     Second elastomeric gasket  514  may be configured to enable dogleg tab  510  of dogleg mechanism  504  to be repeatedly moved into and out of the retracted position. Housing  502  includes recess  520  that is sized and shaped to receive and surround portions of dogleg tab  510 . Recess  520  or another part of housing  502  may be configured as a retention mechanism to retain dogleg tab  510  in a retracted position. For example, a portion of the outer surfaces of dogleg tab  510  may be oversized relative to the size of recess  520  such that dogleg tab  510  is press-fit into the recess in housing  502 . As an example, recess  520  can include a flange, tab, boss, rib or other protrusion that extends from an inner peripheral surface of recess  520  and dogleg tab  510  can include a flange, tab, boss, rib or other protrusion that extends from an outer peripheral surface of dogleg tab  510 , which complimentary protrusions are arranged and configured to interfere when dogleg tab  510  is pushed into the retracted position in recess  520 , thereby securing dogleg tab  510  in recess  520  with a press/friction fit. 
     In some cases, threads in dogleg tab  510  that receive threaded fastener  508  may wear quickly and loose friction with the fastener. For example, it may not be uncommon for a plastic dogleg threads to wear quickly and loose friction with a metal screw. In such cases, the loss of friction between fastener  508  and dogleg tab  510  may cause the dogleg tab to be unable to overcome the retention friction within recess  520  when trying to fully swing the dogleg tab into or out of the retracted position within the recess. However, second elastomeric gasket  514  may be configured to enable dogleg tab  510  of dogleg mechanism  504  to be repeatedly moved into and out of the retracted position by inducing friction between gasket  514  and fastener  508  that is greater than the friction/force of the retention mechanism of recess  520  and/or housing  502 . 
     In the foregoing examples, a number of example elastomeric gaskets are described and depicted as cylindrical. In some examples, a friction inducing elastomeric gasket in accordance with this disclosure can be a circular cylindrical gasket, as depicted the examples of  FIGS. 2-5 . In other examples, however, a differently shaped friction inducing elastomeric gasket can be employed, including a square or rectangular cylindrical gasket with rectilinear end faces/surfaces and a corresponding rectilinear side surface. As another example, the end faces/surfaces of an example gasket need not be orthogonal to the side face(s)/surface(s) thereof and an example gasket could be, e.g., pyramidal or conical. 
     In the foregoing examples of  FIGS. 2-5 , the friction inducing member is described and depicted as an elastomeric gasket. In other examples, however, a friction inducing member may be another type of component or feature.  FIGS. 6A-10  depict additional examples of friction inducing members in accordance with this disclosure. 
       FIGS. 6A and 6B  are perspective and plan views of example friction inducing element  600 , which may be used in the installation of a device configured to be mounted to a planar mounting panel. In  FIGS. 6A and 6B , fastener  602  is disposed in aperture  604  in housing  606  of a device configured to be mounted to a planar mounting panel. Friction inducing member  600  includes one or more protrusions extending inwardly within aperture  604  of housing  606 . In the example of  FIGS. 6A and 6B , friction inducing member  600  includes a plurality of fins  608 , which extend inwardly within aperture  604 . Friction inducing member  600  is fixedly attached to or integral with housing  606  and fastener  602  is friction-fit to friction inducing member  600 . 
     Friction inducing member  600  includes four generally straight fins  608 . However, in other examples, a friction inducing member can include more or fewer fins. Fins  608  extend inwardly within aperture  604  of housing  602 , but do not extend radially inwardly. Instead, fins  608  extend inwardly at a non-right angle to a tangent of the circumference of aperture  604 . In other examples, however, a friction inducing member can include one or more fins extending radially inward within an aperture of a device housing, including example friction inducing member  700  of  FIG. 7 , which includes one or more fins  702 . Additionally, in other examples, a friction inducing member in accordance with this disclosure can include non-straight fins, including, for example curved/contoured fins  802  of friction inducing element  800  of  FIG. 8 . 
       FIG. 9  depicts another example friction inducing member  900  in accordance with this disclosure. In  FIG. 9 , a fastener is disposed in an aperture in a housing of a device configured to be mounted to a planar mounting panel. Friction inducing member  900  includes one or more protrusions extending inwardly within the aperture. In the example of  FIG. 9 , friction inducing member  900  includes a plurality of ribs  902 , which extend inwardly within aperture and which include a speed-bump-like cross-sectional shape. Friction inducing ribs can be differently shaped in other examples. Friction inducing member  900  is fixedly attached to or integral with the housing and the fastener is friction-fit to ribs  902 . 
       FIG. 10  is a perspective view of example friction inducing element  1000 , which may be used in the installation of a device configured to be mounted to a planar mounting panel. In  FIG. 10 , fastener  1002  is disposed in aperture  1004  in housing  1006  of a device configured to be mounted to a planar mounting panel. Friction inducing member  1000  includes one or more fins  1008  extending inwardly within aperture  1004  of housing  1006 . In this example, fins  1008  are disposed in aperture  1004  such that the head  1010  of fastener  1002 , instead of the shaft, is friction fit to the fins of friction inducing member  1000 . 
     In  FIGS. 6A-10 , the dogleg retention mechanism is not shown in full detail. However, these examples including friction inducing members  600 ,  700 ,  800 ,  900  and  1000  can be employed in a similar manner as described above with reference to the examples of  FIGS. 2-5  and one end of a fastener can be coupled to a dogleg tab of a dogleg retention mechanism. 
       FIG. 11  is a flowchart depicting an example method  1100  of making a device configured to be mounted to a planar mounting panel. Method  1100  includes fixedly attaching a friction inducing element to a housing of the device adjacent a housing aperture ( 1102 ), friction-fitting the friction inducing member and the fastener to one another ( 1104 ), and coupling a dogleg tab of a dogleg mechanism to one end of the fastener ( 1106 ). The housing is configured to be received in an aperture in the mounting panel. The dogleg tab being configured to be disposed in a retracted position and to be disposed in an engagement position, in which engagement position the dogleg tab is disposed to engage an inside surface of the mounting panel. The example method  1100  is applicable to example devices  100 ,  200 ,  300 ,  400 ,  500 ,  600 ,  700 ,  800 ,  900  and  1000  and other example devices in accordance with this disclosure. 
     In examples according to this disclosure, a force of friction between the fastener and the friction inducing member can be greater than or equal to a threshold force. For example, the threshold friction force between the friction inducing member and the housing can be greater than a weight of the dogleg tab. 
     In some examples, the friction-inducing member includes a first elastomeric gasket and example method  1100  and also includes fixedly attaching a second elastomeric gasket to the dogleg tab. The second gasket is friction-fit to the fastener. In examples, a force of friction between the fastener and the second gasket is greater than or equal to a threshold force. For example, the threshold force between the second gasket and the fastener is greater than a retention force between the dogleg tab and a dogleg retention mechanism configured to retain the dogleg tab in the retracted position. 
     Example friction inducing members according to this disclosure may be fabricated from a variety of materials, using a variety of manufacturing methods and may be formed in a variety of shapes depending upon the intended application. For example, friction inducing elastomeric gaskets in accordance with this disclosure may be formed in a non-circular cylindrical shape such as a conical, elliptical or rectangular shape. Elastomeric gaskets may be fabricated from a variety of elastomers, including, e.g., nylon and rubber (natural and/or synthetic rubber). As another example, friction inducing fins and/or ribs can be fabricated from a variety of materials, including elastomers and can be molded or cast integral with a device housing, can be overmolded to a device housing, or can be fabricated by another technique/method appropriate for the desired application. 
     Notes &amp; Examples 
     The present application provides for the following exemplary embodiments or examples, the numbering of which is not to be construed as designating levels of importance: 
     Example 1 provides a device configured to be mounted to a planar mounting panel, the device comprising: a housing configured to be received in an aperture in the mounting panel, the housing comprising a housing aperture; a threaded fastener disposed in the housing aperture; a dogleg tab operatively coupled to one end of the fastener, the dogleg tab configured to be disposed in a retracted position and to be disposed in an engagement position, in which engagement position the dogleg tab is disposed to engage an inside surface of the mounting panel; and a friction inducing member fixedly attached to the housing adjacent the housing aperture and friction-fit to the fastener. 
     Example 2 provides the device of Example 1 and optionally wherein a force of friction between the fastener and the friction inducing member is greater than or equal to a threshold force. 
     Example 3 provides the device of Example 2 and optionally wherein the threshold force is greater than a weight of the dogleg tab. 
     Example 4 provides the device of any one of Examples 1-3 and optionally wherein the friction inducing member is fixedly attached to the housing with an adhesive. 
     Example 5 provides the device any one of Examples 1-4 and optionally wherein the friction inducing member is disposed within the housing aperture. 
     Example 6 provides the device of Example 5 and optionally wherein the friction inducing member comprises a gasket. 
     Example 7 provides the device of Example 1 and optionally wherein an outer diameter of the gasket is greater than an inner diameter of the housing aperture. 
     Example 8 provides the device of Example 6 or Example 7 and optionally wherein the gasket comprises a cylindrical plug gasket disposed within the housing aperture. 
     Example 9 provides the device any one of Examples 6-8 and optionally wherein the elastomeric gasket is a first elastomeric gasket and further comprising a second elastomeric gasket, the second elastomeric gasket fixedly attached to the dogleg tab and friction-fit to the fastener. 
     Example 10 provides the device of Example 9 and optionally wherein a force of friction between the fastener and the second gasket is greater than or equal to a threshold force. 
     Example 11 provides the device of Example 10 and optionally wherein the threshold force is greater than a retention force between the dogleg tab and a dogleg retention mechanism configured to retain the dogleg tab in the retracted position. 
     Example 12 provides the device any one of Examples 5-11 and optionally wherein the friction inducing member comprises one or more protrusions extending inwardly within the housing aperture. 
     Example 13 provides the device of Example 12 and optionally wherein the one or more protrusions comprises one or more fins extending inwardly from an inner surface of the housing aperture. 
     Example 14 provides the device of Example 12 or Example 13 and optionally wherein the one or more protrusions comprises one or more ribs disposed on an inner surface of the housing aperture. 
     Example 15 provides the device any one of Examples 1-14 and optionally wherein the friction inducing member comprises a gasket comprising a gasket aperture, which gasket aperture is friction-fit to the fastener. 
     Example 16 provides the device of Example 15 and optionally wherein the gasket aperture comprises an inner diameter and the fastener comprises an outer diameter, the inner diameter of the gasket aperture being less than the outer diameter of the fastener. 
     Example 17 provides the device any one of Examples 1-16 and optionally wherein the friction inducing member comprises a gasket axially aligned with the housing aperture. 
     Example 18 provides the device any one of Examples 1-17 and optionally wherein the dogleg tab comprises: a lateral flange extending approximately perpendicular from the fastener; and a longitudinal flange extending perpendicular from the lateral flange and parallel to the fastener. 
     Example 19 provides the device any one of Examples 1-18 and optionally wherein the friction inducing member comprises a cylindrical cap gasket fixedly attached to the housing adjacent one end of the housing aperture. 
     Example 20 provides the device any one of Examples 1-19 and optionally wherein the friction inducing member comprises a flat ring gasket fixedly attached to the housing adjacent one end of the housing aperture. 
     Example 21 provides a method of making a device configured to be mounted to a planar mounting panel, the method comprising: fixedly attaching a friction inducing member to a housing of the device adjacent a housing aperture, the housing being configured to be received in an aperture in the mounting panel; friction-fitting a fastener and the friction inducing member to one another; and coupling a dogleg tab of a dogleg mechanism to one end of the fastener, the dogleg tab being configured to be disposed in a retracted position and to be disposed in an engagement position, in which engagement position the dogleg tab is disposed to engage an inside surface of the mounting panel. 
     Example 22 provides the method of Example 21 and optionally wherein a force of friction between the fastener and the friction inducing member is greater than or equal to a threshold force. 
     Example 23 provides the method of Example 22 and optionally wherein the threshold force is greater than a weight of the dogleg tab. 
     Example 24 provides the method of any one of Examples 21-23 and optionally wherein the friction inducing member comprises a first elastomeric gasket and further comprising: fixedly attaching a second elastomeric gasket to the dogleg tab; and friction-fitting the second gasket to the fastener. 
     Example 25 provides the method of Example 24 and optionally wherein a force of friction between the fastener and the second gasket is greater than or equal to a threshold force. 
     Example 26 provides the method of Example 25 and optionally wherein the threshold force is greater than a retention force between the dogleg tab and a dogleg retention mechanism configured to retain the dogleg tab in the retracted position. 
     Various embodiments are illustrated in the figures above. One or more features from one or more of these embodiments may be combined to form other embodiments. 
     The above detailed description is intended to be illustrative, and not restrictive. The scope of the disclosure should, therefore, be determined with references to the appended claims, along with the full scope of equivalents to which such claims are entitled.