Patent Publication Number: US-11655937-B2

Title: Magnetic mounting bracket

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application claims the benefit of U.S. Provisional Application No. 62/830,649, filed on Apr. 8, 2019, and U.S. patent application Ser. No. 16/840,742, filed on Apr. 6, 2020, which is now U.S. Pat. No. 11,168,835, all of which are hereby incorporated by reference in their entirety. 
    
    
     BACKGROUND OF THE INVENTION 
     Field of Invention 
     Various embodiments relate to a mounting bracket for supporting a light source on a magnetic wall structure. Various embodiments further relate to a method of supporting a light source on a magnetic wall structure. 
     Prior Art 
     There has been a long felt need in various industries, such as the chemical industry, for safer methods to clean large chemical tanks or similar vessels. Vessels such as commercial chemical tanks designed to permit persons to enter the interior of the tank for cleaning purposes, hereinafter vessel or chemical tank, are almost always windowless requiring the temporary installation of lighting systems to permit the persons to see the interior tank wall surfaces and floor that are to be cleaned generally utilizing high pressure sprays. The interior tank wall is commonly made from a magnetic material such as stainless steel forming a magnetic wall structure. 
     The prior art lighting systems include hand lamps hung from internal scaffolding within a vessel. There is a need to provide a location in closer proximity to the interior wall surface of a vessel. Therefore, it is an objective of this invention to provide a light mount which will attach to the interior wall surface of a vessel. 
     The interior wall of a chemical tank may contain a film, layer, or cake of chemical residue. It is yet another objective of this invention to provide a light bracket that provides a secure attachment without falling, slipping, sliding or otherwise losing its position against the interior wall of a chemical tank without damaging the interior wall of the chemical tank. 
     Chemical tanks range in geometry and size. In geometry, some are cylindrical and other spherical. In size, processing vessels, storage vessels, and transportation vessels vary considerably in magnitude between a diameter of less than 50 feet to a diameter greater than 300 feet. Therefor it is an object of this invention to provide a light mount which will attach to the interior wall surface of commercial chemical vessels across a wide range of sizes and that are either cylindrical or spherical in geometry. 
     It is further an object of this invention to provide a light mount adaptable between a variety of magnetic wall structures including the interior wall surface of a cylindrical or spherical vessel, the exterior wall surface of a cylindrical or spherical vessel, and a planar wall surface. It is a further objective of this invention to provide a light bracket that can be simultaneously mounted to different surfaces forming the interior surfaces of the tank wall. 
     Other advantages and objectives of the invention are inherent or obvious to a person of ordinary skill in the art from the ensuing descriptions of the invention. 
     SUMMARY OF THE INVENTION 
     Various embodiments relate to a magnetic mounting bracket for supporting a light source. Various embodiments further relate to a method of supporting a light source on a magnetic wall structure. 
     In various embodiments of the apparatus, the magnetic mounting bracket comprising: (a) base having a first magnetic contact positioned on a bottom surface of the base; (b) an arm mount affixed to the base; (c) a light mount affixed to the base; (d) at least one arm pivotally fixed to the arm mount; and (e) at least one pad each pivotally connected to an extending end of the at least one arm, each of the at least one pad having a second magnetic contact positioned on a contact surface of the at least one pad. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a view of the mounting bracket with the arms extended along a horizontal plane. 
         FIG.  2    is an exploded view of the mounting bracket of  FIG.  1   . 
         FIG.  3    is the mounting bracket of  FIG.  1    with the arms in a folded configuration. 
         FIG.  4    is a select view of the mounting bracket of  FIG.  3    depicting one arm in the folded configuration with a locking bar positioned between an arm and an arm mount, the remaining arms removed for clarity. 
         FIG.  5    is a side view of the mounting bracket of  FIG.  3    being position against a magnetic wall structure. 
         FIG.  6    is the mounting bracket of  FIG.  5    from another perspective after it has been positioned against the wall. 
         FIG.  7    is the mounting bracket of  FIG.  6    with a locking bar removed from between an arm and the arm mount. 
         FIG.  8    is the mounting bracket of  FIG.  7    with one arm extended from a folded configuration and a corresponding pad positioned against a magnetic wall structure. 
         FIG.  9    is the mounting bracket of  FIG.  8    with another locking bar removed from between the arm. 
         FIG.  10    is the mounting bracket of  FIG.  9    with another arm extended from a folded configuration and a corresponding pad positioned against a magnetic wall structure. 
         FIG.  11    is the mounting bracket of  FIG.  10    with the remaining locking bars removed, the remaining arms extended from a folded configuration, and the corresponding pads positioned against a magnetic wall structure. 
         FIG.  12    is the mounting bracket of  FIG.  11    supporting a light source. 
         FIG.  13    is the mounting bracket of  FIG.  12    without the light source. 
         FIG.  14    is the mounting bracket of  FIG.  13    with one pad removed from a magnetic wall structure. 
         FIG.  15    is the mounting bracket of  FIG.  14    with one arm corresponding to the one pad removed of  FIG.  14    in the folded configuration. 
         FIG.  16    is the mounting bracket of  FIG.  15    with the locking bar of the folded arm of  FIG.  15    positioned between the folded arm and the arm mount. 
         FIG.  17    is the mounting bracket of  FIG.  16    with the remaining pads removed from a magnetic wall structure, the corresponding arms in folded configurations, and corresponding locking bars positioned between corresponding folded arms and the arm mount. 
         FIG.  18    is a side view of the mounting bracket of  FIG.  17    being removed from a magnetic wall structure. 
     
    
    
     DETAILED DESCRIPTION OF THE DRAWINGS 
     Apparatus 
     In various embodiments of the apparatus, mounting bracket  10  comprises: (a) base  100  having first magnetic contact  120  affixed to bottom surface  105  of base  100 ; (b) arm mount  200  affixed to base  100 ; (c) light mount  150  affixed to base  100 ; (d) arm assembly  300  pivotally fixed to arm mount  200 ; and (e) pad  320  pivotally connected to an extending end of arm assembly  300 , pad  320  having second magnetic contact  321 . 
     In various embodiments of the apparatus, mounting bracket  10  includes plurality of arm assemblies  300 ,  400 ,  500 ,  600 , each pivotally fixed to and spaced about arm mount  200 ; a plurality of pads  320 ,  420 ,  520 ,  620  each pivotally connected to an extending end of an arm assembly  300 ,  400 ,  500 ,  600 ; and each pad  320 ,  420 ,  520 ,  620  having a second magnetic contact  321 ,  421 ,  521 ,  621 . The figures depict one embodiment of the mounting bracket  10  with four arm assemblies  300 ,  400 ,  500 ,  600 . Neither the apparatus nor the method is dependent on the apparatus having four arm assemblies  300 ,  400 ,  500 ,  600 . Further the method is not dependent on all arms  300 ,  400 ,  500 ,  600  being used to secure the mounting bracket  10  to a magnetic wall structure. 
     In various embodiments of the apparatus, base  100  is an elongated metal strip. In various embodiments of the apparatus, first magnetic contact  120  is a plurality of magnets  121 ,  122 ,  123  affixed to the bottom surface  105  of base  100 . In various embodiments of the apparatus, each of the plurality of magnets  121 ,  122 ,  123  is a magnetic disk with a centrally located threaded shaft to affix the plurality of magnets to base  100 . In various embodiments of the apparatus, each of the plurality of magnets  121 ,  122 ,  123  are rubber coated. 
     In various embodiments of the apparatus, first magnetic contact  120  creates a first magnetic bond with magnetic wall structure  7 , the first magnetic bond being strong enough to at least support the weight of mounting bracket  10  against magnetic wall structure  7 . In various embodiments of the apparatus, first magnetic bond is strong enough to at least support the weight of mounting bracket  10  and light source  7  against the magnetic wall structure. The interior wall surface of a chemical tank may include a film, layer, or cake of chemical residue. In various embodiments of the apparatus, first magnetic contact  120  will support mounting bracket  10  against magnetic wall structure  7  without falling, slipping, sliding or otherwise losing its position against the magnetic wall structure  7 . 
     The required strength of the bond between first magnetic contact  120  and magnetic wall structure  7  will vary subject to, among other considerations not included, the composition or type of magnet forming first magnetic contact  120 ; the composition of magnetic wall structure  7 ; the presence of any material between first magnetic contact  120  and magnetic wall structure  7  such as residual film or layers from chemical processing; the contact area between first magnetic contact  120  and magnetic wall structure  7 ; the weight of mounting bracket  10  and light source  5 ; and any additional factors of safety for among others the forceable pulling or jerking of mounting bracket  10  from magnetic wall structure  7 . 
     In various embodiments of the apparatus, base  100  further includes post  107  affixed to base  100  wherein arm mount  200  is slidably affixed to the post  107 . In various embodiments of the apparatus, post  107  further includes stop  108  ( FIG.  2   ) spacing arm mount  200  from bottom surface of base  100 . In various embodiments of the apparatus, post  107  is affixed to a below center position on base  100  when base is positioned adjacent a magnetic wall structure. In various embodiments of the apparatus, light mount  150  is affixed to the post  107  at a position opposite base  100 . 
     In various embodiments of the apparatus, arm mount  200  includes first arm bracket  231  for pivotally attaching at least one arm assembly  300 . In various embodiments of the apparatus, arm mount  200  includes arm bracket  231 ,  232 ,  233 ,  234  for pivotally attaching at least one arm assembly  300 ,  400 ,  500 ,  600 . In various embodiments of the apparatus, plate  210  supports bracket  231  to arm mount  200 . 
     In various embodiments of the apparatus, mounting bracket  10  further includes a fastening mechanism to secure arm mount  200  to post  107 . In various embodiments of the apparatus, the fastening mechanism includes threaded fastener  222  and threaded bore  221  passing through hollow tube member  220  wherein when fastener  222  is threaded through bore  221  and positioned against post  107 , fastener  222  prevents arm mount  200  from sliding on post  107 . 
     In various embodiments of the apparatus, arm assembly  300  includes arm  310  having first end  311  pivotally connected to arm bracket  231  and second end  312  extending from the arm mount  200  and pivotally connected to pad  320 . In various embodiment of the apparatus, arm assembly  300  further includes locking bar  313  slidably affixed to arm, wherein locking bar  313  holds arm  310  in a folded configuration when it is positioned between arm  310  and arm mount  200  ( FIGS.  3  and  4    depicting arm assembly  600  in the folded configuration). In various embodiment of the apparatus, when locking bar  313  is positioned between arm  310  and arm mount  200 , locking bar  313  is also positioned between arm  310  and bracket  231 . In various embodiments of the apparatus, arm assembly  300  further includes ball plunger  314  for securing locking bar  313  in a position on arm  310  to prevent locking bar  313  from becoming positioned between arm  310  and arm mount  200 . 
     In various embodiments of the apparatus, pad  320  further includes second magnetic contact  321 . In various embodiments of the apparatus, second magnetic contact  321  is a magnet disk with a centrally located threaded shaft to affix the second magnetic contact  321  to base  100 . In various embodiments of the apparatus, second magnetic contact  321  is rubber coated. 
     In various embodiments of the apparatus, second magnetic contact  321  creates a second magnetic bond with magnetic wall structure  7 , the second magnetic bond being strong enough to at least support the weight of mounting bracket  10  and light source  7  against the magnetic wall structure. The interior wall surface of a chemical tank may include a film, layer, or cake of chemical residue. In various embodiments of the apparatus, second magnetic contact  321  will support mounting bracket  10  against magnetic wall structure  7  without falling, slipping, sliding or otherwise losing its position against the magnetic wall structure  7 . 
     The required strength of the bond between second magnetic contact  321  and magnetic wall structure  7  will vary subject to, among other considerations not included, the composition or type of magnet forming second magnetic contact  321 ; the composition of magnetic wall structure  7 ; the presence of any material between second magnetic contact  321  and magnetic wall structure  7  such as a film, layer, or cake, residual from chemical processing; the contact area between second magnetic contact  321  and magnetic wall structure  7 ; the weight of mounting bracket  10  and light source  5 ; and any additional factors of safety for among others reasons the forceable pulling or jerking of mounting bracket  10  from magnetic wall structure  7 . 
     In various embodiments of the apparatus, pad  320  further includes handle  325  affixed to pad  320  at a position opposite the pivotally connected second end  312  of arm  310 . In various embodiments of the apparatus, handle  325  is positioned and oriented on pad  320  to facilitate positioning or removing second magnetic contact  321  from a magnetic wall structure. 
     In various embodiments of the apparatus, mounting bracket  10  further include a plurality of arm assemblies. In various embodiments of the apparatus, mounting bracket  10  further includes arm assemblies  400 ,  500 ,  600 , each pivotally fixed to and in conjunction with arm assembly  300  spaced about arm mount  200 ; a pads  420 ,  520 ,  620  each pivotally connected to an extending end of an arm assembly  400 ,  500 ,  600 ; and each pad  420 ,  520 ,  620  having a second magnetic contact  421 ,  521 ,  621 . In various embodiments, arm assemblies  400 ,  500 ,  600  are substantially similar to arm assembly  300 . In various embodiments, pads  420 ,  520 ,  620  are substantially similar to pad  320 . 
     In various embodiments of the apparatus, mounting bracket  10  includes at least one cord loop  141 ,  142  for supporting an electrical cord powering light source  5  and for preventing light source  5  or mounting bracket  10  from becoming removed from the magnetic wall structure light mount by the forceable pulling on an electrical cord powering light source  5 . 
     In various embodiments of the apparatus, mounting bracket  10  is designed for use in the presence of flammable dust, vapors or gases. In various embodiments of the apparatus, mounting bracket  10  is designed for use in confined spaces containing flammable dust, vapors or gases. In various embodiments of the apparatus, mounting bracket  10  is made from spark resistant materials. In various embodiments of the apparatus, mounting bracket  10  is coated in spark resistant materials. In various embodiments of the apparatus, base  100 , the arm mount  200 , light mount  150 , at least on arm  310 ,  410 ,  510 ,  610 , and at least on pad  320 ,  420 ,  520 ,  620 , is made from aluminum. In various embodiments of the apparatus, post  107  is made from aluminum. In various embodiments of the apparatus, the first  120  and second  321 ,  421 ,  521 ,  621  magnetic contacts are coated in rubber. 
     In various embodiments of the apparatus, mounting bracket  10  includes plate  130  for instructions. By positioning plate  130  on base  100  opposite post  107 , plate  130  can be used to facilitate positioning and removing mounting bracket  10  from magnetic wall structure  7 . 
     In various embodiments of the apparatus, mounting bracket  10  includes: base  100  having first magnetic contact  120  on bottom surface of base  100 ; arm mount  200  affixed to base  100 ; light mount  150  affixed to base  100 ; at least one arm  310  pivotally fixed to arm mount  200 ; and pad  320  pivotally connected to an extending end  312  of at least one arm  310 , pad  320  having second magnetic contact  321 . 
     In various embodiments of the apparatus, mounting bracket  10  further including post  107  affixed to base  100  wherein arm mount  200  is slidably affixed to post  107 . In various embodiments of the apparatus, post  107  is affixed to a below center position on base  100  when mounting bracket  10  is mounted against a magnetic wall structure  7 . In various embodiments of the apparatus, light mount  150  is affixed to post  107  opposite base  100 . In various embodiments of the apparatus, post  107  further includes stop  108  spacing arm mount  200  from base  100 . 
     In various embodiments of the apparatus, arm mount  200  further includes threaded bore  221  suitable to pass threaded fastener  222  wherein threaded fastener  222  secures arm mount  200  to post  107  when threaded fastener  222  is threaded through bore  221  and positioned against post  107 . 
     In various embodiments of the apparatus, at least one arm  310  further includes locking bar  313  slidably affixed to at least one arm  310 , wherein when at least one arm  310  is in a folded configuration, locking bar  313  is positioned between at least one arm  310  and arm mount  200 , and locking bar  313  maintains at least one arm  310  in a folded configuration. In various embodiments of the apparatus, at least one arm  310  further includes ball plunger  314  for securing locking bar  313  to a position on at least one arm  310  whereby locking bar  313  does not slide between at least one arm  310  and arm mount  200 . 
     In various embodiments of the apparatus, pad  320  includes handle  325  affixed to pad  320  opposite the pivotally connected extending end  312  of at least one arm  310 . 
     In various embodiments of the apparatus, first magnetic contact  120  includes at least three magnetic disks  121 ,  122 ,  123  secured to the bottom surface of base  100 . In various embodiments of the apparatus, second magnetic contact  321  includes a magnetic disk secured to pad  320 . 
     In various embodiments of the apparatus, mounting bracket  10  includes a plurality of arms each pivotally fixed to and spaced about arm mount  200 . In various embodiments of the apparatus, mounting bracket  10  further includes at least four arms  310 ,  410 ,  510 ,  610  each pivotally fixed to and spaced about arm mount  200 . 
     Method 
       FIGS.  5 - 18    depict various steps in a method of using one embodiment of mounting bracket  10 . In various embodiments of the apparatus and method, mounting bracket  10  is used to support light  5  ( FIG.  12   ) from magnetic wall structure  7  of a commercial vessel or chemical tank. In various embodiments of the method, mounting bracket  10  is positioned on a first section of interior wall of a vessel or chemical tank (or first magnetic wall structure  7 ), and light source  5  is supported from first magnetic wall structure  7 . In various embodiments of the method, mounting bracket  10  is further removed from first magnetic wall structure  7  and repositioned on second magnetic wall structure  7 ′, and a light source is supported from a second magnetic wall structure  7 ′. 
     In various embodiments of the apparatus and method, first magnetic wall structure  7  includes a location on an interior wall sections of a commercial vessel or tank. In various embodiments of the apparatus and method, mounting bracket  10  may be mounted on a variety of magnetic wall structures  7  geometrically defined between the range of a flat or planar section and an interior section of a cylinder or sphere defined by a radius of 75 feet, 50 feet, 40 feet, 30 feet, 20 feet, 10 feet, or 5 feet. In various embodiments of the apparatus and method, mounting bracket  10  may be mounted on a variety of magnetic wall structures geometrically defined between the range of an exterior section of a cylinder or sphere defined by a radius of 75 feet, 50 feet, 40 feet, 30 feet, 20 feet, 10 feet, or 5 feet and an interior section of a cylinder or sphere defined by a radius of 75 feet, 50 feet, 40 feet, 30 feet, 20 feet, 10 feet, or 5 feet. In various embodiments of the apparatus and method, second magnetic wall structure  7 ′ is another location on the same interior wall section of the same commercial tank on which or in which the first magnetic wall structure is located. 
     In various embodiments of the apparatus and method, before first magnetic contact  120  of base  100  is positioned against a first magnetic wall structure  7 , arm assembly  300  or arm assemblies  300 ,  400 ,  500 ,  600  may be in a folded configuration. In various embodiments of the method, the first magnetic contact  120  of base  100  is positioned  1001  against a first magnetic wall structure  7  ( FIG.  5   ). In various embodiments of the method, light  5  is supported from light mount  150  after first magnetic contact  120  is positioned against first magnetic wall structure  7 . 
     In various embodiments of the apparatus and method, locking bar  313  or one of locking bars  313 ,  413 ,  513 ,  613  is removed  1002  from between arm  310  or one of arms  310 ,  410 ,  510 ,  610  and arm mount  200  ( FIG.  6   ). In various embodiments of the apparatus and method locking bar  313  or one of locking bars  313 ,  413 ,  513 ,  613  may be secured by ball plunger  314  or one of ball plungers  314 ,  414 ,  514 ,  614 . 
     In various embodiments of the apparatus and method, after first magnetic contact  120  is positioned  1001  against first magnetic wall structure  7 , arm  310  or one of arms  310 ,  410 ,  510 ,  610  is extended  1003  from the folded configuration to bring pad  320  or one of pads  320 ,  420 ,  520 ,  620  in close proximity to magnetic wall structure  7  and to position second magnetic contact  321  or one of second magnetic contacts  321 ,  421 ,  521 ,  621  on magnetic wall structure  7  ( FIG.  7   ). In various embodiments of the invention, fastener  222  is positioned against post  107  after second magnetic contact  321  is positioned against magnetic wall structure  7 . In various embodiments of the inventions, light  5  is supported from light mount  150  after second magnetic contact  321  is positioned against magnetic wall structure. 
     In various embodiments of the apparatus and method, after second magnetic contact  321  is positioned against magnetic wall structure  7 , locking bar  413  of another arm assembly  400  is removed  1004  from between one of the remaining arms  410  and arm mount  200  ( FIG.  8   ). In various embodiments of the apparatus and method, the locking bar  413  is secured by ball plunger  414 . 
     In various embodiments of the apparatus and method, after second magnetic contact  321  is positioned against first magnetic wall structure  7 , arm  410  is extended  1005  from the folded configuration to bring pad  420  in close proximity to magnetic wall structure  7  and to position another second magnetic contact  421  on magnetic wall structure  7  ( FIG.  9   ). In various embodiments of the invention, fastener  222  is positioned against post  107  after another second magnetic contact  421  is positioned against magnetic wall structure. In various embodiments of the inventions, light  5  is supported from light mount  150  after another second magnetic contact  421  is positioned against magnetic wall structure. 
     In various embodiments of the apparatus and method, after another second magnetic contact  421  is positioned against magnetic wall structure  7 , locking bar  513  of another arm assembly  500  is removed  1006  from between one of the remaining arms  510  and arm mount  200 . ( FIG.  10   ) In various embodiments of the apparatus and method, the locking bar  513  is secured by ball plunger  514 . 
     In various embodiments of the apparatus and method, after another magnetic contact  421  is positioned against first magnetic wall structure  7 , arm  510  is extended from the folded configuration to bring pad  520  in close proximity to magnetic wall structure  7  and to position another second magnetic contact  521  on magnetic wall structure  7 . In various embodiments of the invention, fastener  222  is positioned against post  107  after another second magnetic contact  521  is positioned against magnetic wall structure. In various embodiments of the inventions, light  5  is supported from light mount  150  after another second magnetic contact  521  is positioned against magnetic wall structure. 
     In various embodiments of the apparatus and method, after another second magnetic contact  521  is positioned against magnetic wall structure  7 , locking bar  613  of another arm assembly  600  is removed from between one of the remaining arms  610  and arm mount  200 . In various embodiments of the apparatus and method, the locking bar  613  is secured by ball plunger  614 . 
     In various embodiments of the apparatus and method, after another magnetic contact  521  is positioned against first magnetic wall structure  7 , arm  610  is extended from the folded configuration to bring pad  620  in close proximity to magnetic wall structure  7  and to position another second magnetic contact  621  on magnetic wall structure  7 . In various embodiments of the invention, fastener  222  is positioned  1007  against post  107  after another second magnetic contact  621  is positioned against magnetic wall structure ( FIG.  11   ). In various embodiments of the inventions, light  5  is supported from light mount  150  after another second magnetic contact  621  is positioned against magnetic wall structure. ( FIG.  12   ) 
     The method is not specific as to the order in which arms  310 ,  410 ,  510 ,  610  are unfolded and second magnetic contacts  321 ,  421 ,  521 ,  621  are positioned against magnetic wall structure. While the specifications disclose unfolding of arm  310 , followed by arm  410 , followed by arm  510 , followed by arm  610 , various embodiments of the apparatus and method include all possible orders in which a plurality of arms may be unfolded and second magnetic contacts positioned against magnetic wall structure. 
     In various embodiments of the apparatus and method, a second magnetic contact  421  is removed  1008  from magnetic wall structure  7  by pulling handle  425  towards the pivotal joint between arm  410  and pad  420  ( FIG.  13   ). In various embodiments of the apparatus and method, arm  410  is then positioned  1009  in a folded configuration ( FIG.  14   ). In various embodiments of the apparatus and method, locking bar  413  is then positioned  1010  between arm  410  and arm mount  200  ( FIG.  15   ). 
     In various embodiments of the apparatus and method, another second magnetic contact  321  is removed  1011  from magnetic wall structure  7  by pulling handle  325  towards the pivotal joint between arm  310  and pad  320  ( FIG.  16   ). In various embodiments of the apparatus and method, arm  310  is then positioned in a folded configuration. In various embodiments of the apparatus and method, locking bar  313  is then positioned between arm  310  and arm mount  200 . 
     In various embodiments of the apparatus and method, another second magnetic contact  521  is removed from magnetic wall structure  7  by pulling handle  525  towards the pivotal joint between arm  510  and pad  520 . In various embodiments of the apparatus and method, arm  510  is then positioned in a folded configuration. In various embodiments of the apparatus and method, locking bar  513  is then positioned between arm  510  and arm mount  200 . 
     In various embodiments of the apparatus and method, a another second magnetic contact  621  is removed from magnetic wall structure  7  by pulling handle  625  towards the pivotal joint between arm  610  and pad  620 . In various embodiments of the apparatus and method, arm  610  is then positioned in a folded configuration. In various embodiments of the apparatus and method, locking bar  613  is then positioned between arm  610  and arm mount  200  ( FIG.  17   ). 
     In various embodiments of the apparatus and method, mounting bracket  10  is removed  1013  from magnetic wall structure  7  ( FIG.  18   ). In various embodiments of the apparatus and method, applying force  1012  to post  107  will facilitate removing  1013  mounting bracket  10  from magnetic wall structure  7  ( FIG.  18   ). 
     In various embodiments of the apparatus and method, mounting bracket is then positioned on a second magnetic wall structure  7 ′. Second magnetic wall structure  7 ′ may be another interior wall position of the same commercial tank. 
     In various embodiments of the apparatus and method, light  5  is supported adjacent a magnetic wall structure  7  according to the following steps: (a) providing a magnetic mounting bracket  10  for supporting a light source including: base  100  having first magnetic contact  120  positioned on a bottom surface of base  100 ; arm mount  200  affixed to base  100 ; light mount  150  affixed to 100 base; at least one arm  310 ,  410 ,  510 ,  610  pivotally fixed to arm mount  200 ; and pad  320 ,  420 ,  520 ,  620  pivotally connected to extending end  312 ,  412 ,  512 ,  612  of at least one arm  310 ,  410 ,  510 ,  610 , pad  320 ,  420 ,  520 ,  620  having second magnetic contact  321 ,  421 ,  521 ,  621 ; (b) positioning first magnetic contact  120  against first magnetic wall  7 ; (c) after step b, pivotally extending at least one arm  310 ,  410 ,  510 ,  610  towards first magnetic wall  7  and pivotally positioning pad  320 ,  420 ,  520 ,  620  of at least one arm  310 ,  410 ,  510 ,  610  so that second magnetic contact  321 ,  421 ,  521 ,  621  is positioned against first magnetic wall  7 ; (d) after step b, supporting light source  5  with light mount  150 ; (e) after step d, removing light source  5  from light mount  150 ; (f) after step c, removing the second magnetic contact  321 ,  421 ,  521 ,  621  from first magnetic wall  7  and pivotally retracting at least one arm  321 ,  421 ,  521 ,  621  from first magnetic wall  7 ; (g) after step b, removing first magnetic contact  120  from first magnetic wall  7 . 
     In various embodiments of the apparatus and method, a light  5  is supported adjacent magnetic wall structure  7  according to the additional following steps: (h) after step g, positioning first magnetic contact  120  against second magnetic wall  7 ′; (i) after step h, pivotally extending at least one arm  310 ,  410 ,  510 ,  610  towards second magnetic wall  7 ′ and pivotally positioning pad  320 ,  420 ,  520 ,  620  of at least one arm  310 ,  410 ,  510 ,  610  so that second magnetic contact  321 ,  421 ,  521 ,  621  is positioned against second magnetic wall  7 ′; and (j) after step g, supporting a light source  5  with light mount  150 . 
     In various embodiments of the apparatus and method, wherein at least one arm  310 ,  410 ,  510 ,  610  further includes locking bar  313 ,  413 ,  513 ,  613  slidably affixed to at least one arm  310 ,  410 ,  510 ,  610 , and wherein locking bar  313 ,  413 ,  513 ,  613  is positioned between at least one arm  310 ,  410 ,  510 ,  610  and the arm mount, locking bar  313 ,  413 ,  513 ,  613  maintains at least one arm  310 ,  410 ,  510 ,  610  in a folded configuration, light  5  is supported adjacent magnetic wall structure  7  according to the additional following steps: (k) after step b and before step c, removing locking bar  313 ,  413 ,  513 ,  613  from between at least one arm  310 ,  410 ,  510 ,  610  and arm mount  200 ; (1) after step f, positioning locking bar  313 ,  413 ,  513 ,  613  between at least one arm  310 ,  410 ,  510 ,  610  and the arm mount  200 ; and (m) after step h and before step i, removing locking bar  313 ,  413 ,  513 ,  613  from between at least one arm  310 ,  410 ,  510 ,  610  and the arm mount  200 . 
     In various embodiments of the apparatus and method, wherein pad  320 ,  420 ,  520 ,  620  pivotally connected to an extending end  312 ,  412 ,  512 ,  612  of at least one arm  310 ,  410 ,  510 ,  610  further includes handle  325 ,  425 ,  525 ,  625  affixed to pad  320 ,  420 ,  520 ,  620  opposite the pivotally connected extending end  312 ,  412 ,  512 ,  612  of at least one arm  310 ,  410 ,  510 ,  610 , light  5  is supported adjacent magnetic wall structure  7  according to the following addition: in step f, handle  325 ,  425 ,  525 ,  625  is used to remove second magnetic contact  321 ,  421 ,  521 ,  621  from first magnetic wall structure  7 . 
     The preceding description of various embodiments and methods is provided to illustrate certain preferred embodiments of the present invention. This description is not limiting and persons with skill in the art will recognize the existence of other variations on the structures and methods described above. All such variations, to the extent they are consistent with the preceding description and the following claims, are intended to be within the scope of the invention set forth in this patent.