Process for assembling and transporting an electronic sign display system

Information

  • Patent Grant
  • 6704989
  • Patent Number
    6,704,989
  • Date Filed
    Wednesday, December 19, 2001
    23 years ago
  • Date Issued
    Tuesday, March 16, 2004
    20 years ago
Abstract
A transportable electronic sign display system and process where electronic display modules are encased in castered protective cases which are broken down on site and assembled in rows of desired length and stackably elevated and maneuvered by a lifting truss. Electronic display modules are lifted from protective case bases with minimal effort or labor. Various numbers of rows of desired length of electronic display modules can be stacked to form a desired display size.
Description




CROSS REFERENCES TO RELATED APPLICATIONS




None.




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention is directed to an electronic display, and more particularly to a transportable electronic sign display system and process.




2. Description of the Prior Art




Electronic sign displays often are incorporated at venues where components of an electronic sign display are moved temporarily to the site and assembled by personnel to display electronically generated alphanumeric information, graphic information, or video information, and then disassembled and removed after use. Such electronic sign displays have included, but have not been limited to, arrays of video monitors or LED displays or the like which were stacked to achieve a desired size. The arrays often include a number of side-by-side connected electronic display modules depending on the length of the array required. The arrays, especially those containing a larger number of electronic display modules, are of a weight and dimension that requires a larger number of personnel than is sometimes readily available to handle and position the array. Such electronic sign displays include graphic displays of a delicate nature and are thus transported in a variety of protective containers and the like. Personnel must then manually lift the weighty and often unwieldy electronic display modules from the protective containers and physically position the electronic display modules for erection at a position which is usually elevated. Clearly what is needed is a method of protection and an efficient shipping and handling process, which includes assembly and disassembly, for an electronic sign display where a minimum of personnel and minimum labor is required. Such is provided by a transportable electronic sign display system and process, the present invention.




SUMMARY OF THE INVENTION




The general purpose of the present invention is to provide a transportable electronic sign display system and process. The transportable electronic sign display system includes stackable electronic display modules which are contained in easily transportable castered cases and a lifting truss which supports arrays of electronic display modules. Electronic display modules are lifted directly from case halves with a minimum of effort and labor.




According to one or more embodiments of the present invention, there is provided a transportable electronic sign display system, including electronic display modules aligned to a protective case base, removable case halves secured to the protective case base encompassing and protecting the electronic display modules, and a lifting truss to which a plurality of electronic display modules in rows or in an array attach and secure.




One significant aspect and feature of the present invention is an electronic sign display system which is transportable and which can be handled by a process whereby arrays of electronic display modules in various sizes can be easily and readily assembled and erected using a minimal assembly crew and minimal effort.




Another significant aspect and feature of the present invention is a transportable electronic sign display system including electronic display modules transported in and protectively contained in protective cases.




Still another significant aspect and feature of the present invention is a transportable electronic sign display system in which electronic display modules are aligningly juxtaposed to form rows and arrays of electronic display modules.




Yet another significant aspect and feature of the present invention is a transportable electronic sign display system having protective cases each of which includes case halves latchingly secured together and to a protective case base which is castered.




A further significant aspect and feature of the present invention is a transportable electronic sign display system having a protective case including a case base which is castered to provide for alignment and realignment with an overhead lifting truss.




Having thus set forth significant aspects and features of the present invention, it is the principal object of the present invention to provide a transportable electronic sign display system and process.











BRIEF DESCRIPTION OF THE DRAWINGS




Other objects of the present invention and many of the attendant advantages of the present invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, in which like reference numerals designate like parts throughout the figures thereof and wherein:





FIG. 1

is an isometric view of the transportable electronic sign display system of the present invention;





FIG. 2

is an exploded isometric view of the case halves being removed from a case base upon which electronic display modules are supported;





FIG. 3

is a side view of an electronic display module supported on a case base, and also one of the case halves which has been removed from the case base;





FIG. 4

is an end view of case halves removed from a case base to reveal electronic display modules supported on the case base;





FIG. 5

illustrates the first steps of the process of the invention;





FIG. 6

illustrates the lifting of a first row of aligned and mated electronic display modules from case bases to a position above adjacently positioned aligned and mated electronic display modules supported on the case bases;





FIG. 7

illustrates the lowering of the lifting truss and the mated and aligned electronic display modules of the first row to meet and attach to the mated and aligned electronic display modules of the second row; and,





FIG. 8

illustrates the upward positioning of the lifting truss to remove the array of connected and mated electronic display modules from the adjacent case bases to raise such array to a viewable elevated position.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT





FIG. 1

is an isometric view of the transportable electronic sign display system


10


of the present invention. The view illustrates a plurality of identically constructed protective cases


12




a


-


12




n,


each of which protectively encompasses and surrounds two of a plurality of electronic display modules


14




a


-


14




n,


such as the two electronic display modules


14




a


and


14




b


illustrated in

FIG. 2

, and a lifting truss


16


.




Protective case


12




a


includes separable case halves


18




a


and


18




b


mutually secured to each other and to a case base


20


. Case halves


18




a


and


18




b


are substantially similar in construction and each differs from the other only by the latch orientation. Case half


18




a


includes a top


22




a,


opposing sides


22




b


and


22




c,


and a front


22




d


having a cutout


24


. Case half


18




b


includes a top


23




a,


opposing sides


23




b


and


23




c,


and a front


23




d


having a cutout


25


(FIG.


2


). A plurality of latch actuators


26




a


-


26




n


are distributed along and about the inner edges of the top


22




a


and sides


22




b


-


22




c


of the case half


18




a.


A plurality of latch receivers


28




a


-


28




n


are distributed along and about the inner edges of the top


23




a


and sides


23




b


-


23




c


of the case half


18




b.


Corresponding latch actuators


26




a


-


26




n


and latch receivers


28




a


-


28




n


secure the aligned case halves


18




a


and


18




b


to one another. Another plurality of latch receivers


30




a


-


30




n


align along and about the cutout


24


of the front


22




d


of case half


18




a


to mate with latch actuators


32




a


-


32




n


located at the edge of a panel


34


, such panel


34


being part of the case base


20


. Another panel


36


(FIG.


2


), being part of the case base


20


and opposing panel


34


, includes a similar latch arrangement for fastening of the panel


36


to the front


23




d


of the case half


18




b


at the cutout


25


, but is not shown for purposes of brevity. A plurality of handhold fixtures


38




a


-


38




n


are distributed along each of the case halves


18




a


and


18




b.


A plurality of stacking dishes


40




a


-


40




n


are distributed along the tops


22




a


and


23




a


of the case halves


18




a


and


18




b.


A plurality of casters


42




a


-


42




n


secure to the bottom of the case base


20


. As stated previously, all of the protective cases


12




a


-


12




n


are identical. Therefore, the foregoing description of protective case


12




a


applies to all of the other protective cases as well.





FIG. 2

is an exploded isometric view of the case halves


18




a


and


18




b


being removed from the case base


20


. Shown in particular are electronic display modules


14




a


and


14




b


which align to and are supported on the case base


20


. The electronic display modules


14




a


and


14




b


can incorporate, for example, delicate light sources such as, but not limited to, light emitting diodes, liquid crystal displays, incandescent lights, and the like. The case base


20


is composed of case base halves


20




a


and


20




b


permanently secured to one another, each half


20




a


and


20




b


having a substantially U-shaped profile into which the electronic display modules


14




a


and


14




b


align. Half


20




a


includes a horizontally aligned bottom


44


, a vertically aligned outwardly located panel


34


, and an opposing vertically aligned inwardly located panel


46


. Protective sculptured shock absorbent and anti-static foam panel


48


secures to the inwardly facing surface of the panel


34


to offer protection for the outwardly facing portion of the electronic display module


14




a,


and another shock absorbent and anti-static foam panel


50


aligns to the outwardly facing portion of the panel


46


to offer protection for the inwardly facing portion of the electronic display module


14




a


having delicate light sources. Half


20




b


is fashioned in the same manner as half


20




a


including a horizontally aligned bottom


52


, a vertically aligned outwardly located panel


36


, and an opposing vertically aligned inwardly located panel


54


. Protective sculptured shock absorbent and anti-static foam panel


56


secures to the inwardly facing surface of the panel


36


to offer protection for the outwardly facing portion of the electronic display module


14




b,


and another shock absorbent and anti-static foam panel


58


aligns to the outwardly facing portion of the panel


54


to offer protection for the inwardly facing portion of the electronic display module


14




b


having delicate light sources. Shock absorbent and anti-static foam panels


50


and


58


normally do not contact the inwardly facing portions of the electronic display modules


14




a


and


14




b.


The shock absorbent and anti-static foam panels


50


and


58


offer protection against inadvertent positioning during removal of or placement of the electronic display modules


14




a


and


14




b


from and into the case base halves


20




a


and


20




b.


For transport, the electronic display modules


14




a


and


14




b


are secured to the case base halves


20




a


and


20




b,


respectively, by a plurality of like securing straps


59


which are permanently fastened at one end to the upper region of each of panel


34


and panel


36


(FIG.


4


). The other end of each of the securing straps


59


secures to like handle fixtures


63


located on the outwardly facing portions of the electronic display modules


14




a


and


14




b.


Straps


59


are disengaged from the handle fixtures


63


during the assembly process. Electronic display modules


14




a


-


14




n


include male or female alignment fixtures


60




a


-


60




n


appropriately gendered and located along and about the periphery of each electronic display module to provide for mated alignment of electronic display modules


14




a


-


14




n


along vertical and horizontal axes to form arrays of electronic display modules


14




a


-


14




n,


as shown later in detail. Electronic display modules


14




a


-


14




n


include lifting lugs


64


.





FIG. 3

is a side view of the electronic display module


14




a


supported on the case base


20


, and also the case half


18




a


which has been removed from the case base


20


. Shown in particular is the relationship of the length of the electronic display module


14




a


to the length of the case base


20


. The length of each of the electronic display modules


14




a


-


14




n


exceeds that of an associated case base


20


such that the ends


68


and


70


of the electronic display modules


14




a


-


14




n


extend over the edges of the associated case base


20


slightly, thereby allowing unobstructed close alignment and coupling of adjacently aligned electronic display modules


14




a


-


14




n,


such as indicated in FIG.


5


.





FIG. 4

is an end view of case halves


18




a


and


18




b


removed from the case base


20


to reveal the electronic display modules


14




a


and


14




b


residing in the case base halves


20




a


and


20




b,


respectively. Shown especially are the foam panels


48


and


50


in the case base half


20




a


and the foam panels


56


and


58


in the case base half


20




b


protectively juxtaposing electronic display modules


14




a


and


14




b,


respectively.




Mode of Operation





FIGS. 5

,


6


,


7


and


8


illustrate the mode of operation of the transportable electronic sign display system


10


including the process of protectively encasing electronic display modules in protective cases, removing case halves of the protective cases, aligning and mating electronic display modules from a rear position of adjacently positioned case bases in end-to-end relationship to form a first row of electronic display modules while on adjacently positioned maneuverable case bases, lowering a lifting truss to meet and attach to the aligned and mated electronic display modules in the first row, raising the lifting truss to remove the first row of aligned and mated electronic display modules from the case bases to a position above the adjacently positioned case bases, maneuveringly rotating the case bases 180 degrees to place remaining electronic display modules into a second row of electronic display modules beneath and in alignment with the suspended first row of electronic display modules, lowering the lifting truss and attached first row of electronic display modules to meet and attach to the second row of electronic display modules in adjacent case bases, thus forming an array of electronic display modules, and, again raising the lifting truss to remove the second row of electronic display modules from adjacent case bases and to elevate such array to a viewable elevated position. In such a process, minimal handling of the electronic display modules is required. The electronic display modules remain in the case bases and are mechanically lifted directly therefrom without a laborious first manual unloading of the electronic display modules from the case bases. Manual unloading of the often heavy and cumbersome electronic display modules is not required.





FIG. 5

illustrates the first steps of the process of the invention. The case halves


18




a


and


18




b


of the protective cases


12




a


and


12




n,


each encasing and surrounding two electronic display module, are separated and removed after disengagement of latch actuators


26




a


-


26




n


from latch receivers


28




a


-


28




n


and disengagement of latch actuators


32




a


-


32




n


from latch receivers


30




a


-


30




n.


The castered case bases


20


of each of the protective cases


12




a


and


12




n


are easily maneuvered to adjacent positions to closely align and juxtapose the rearwardly located electronic display modules in the case bases


20


to form a first row A of aligned and mated electronic display modules that includes electronic display module


14




n


and to closely align and juxtapose the forwardly located electronic display modules in the case bases


20


to form a second row B of aligned and mated electronic display modules that includes electronic display module


14




a.


The lifting truss


16


is then lowered to meet and attach by suitable means to the lifting lugs


64


extending from the upper regions of the aligned and mated electronic display modules in the first row A.





FIG. 6

illustrates the lifting of the first row A of aligned and mated electronic display modules from the case bases


20


to a position above the second row B of adjacently positioned aligned and mated electronic display modules supported on the case bases


20


. Subsequent to such lifting of the first row A of aligned and mated electronic display modules, the case bases


20


are rotated 180 degrees, as shown by arrows


72


and


74


, to a position as shown in

FIG. 7

, whereby the aligned and mated electronic display modules of the second row B, which are still resting in the case bases


20


, become aligned and mated to the electronic display modules of the first row A.





FIG. 7

illustrates the lowering of the lifting truss


16


and the mated and aligned electronic display modules of the first row A to meet and attach to the mated and aligned electronic display modules of the second row B which are still resting in the case bases


20


, thereby forming an array of electronic display modules composed of the electronic display modules in rows A and B.





FIG. 8

illustrates the upward positioning of the lifting truss


16


to remove the array of connected and mated electronic display modules which are in row form, from the adjacent case bases


20


to raise such array to a viewable elevated position. Although just four electronic display modules


14




a


-


14




n


are shown, it is to be appreciated that various numbers of electronic display modules may be incorporated. For example, just one row of electronic display modules could be used in a 1×2 configuration (one row with two electronic display modules), or more combinations could be incorporated, such as 2×3 (two rows each with three electronic display modules), 2×4, 3×3, 4×4 and the like, to create a suitably sized array. Of course, removal and breaking down of the transportable electronic sign display system


10


would incorporate the reversal of the steps required for erection of such a system.




Various modifications can be made to the present invention without departing from the apparent scope thereof.




TRANSPORTABLE ELECTRONIC SIGN DISPLAY SYSTEM AND PROCESS















PARTS LIST




























10




transportable




32a-n




latch actuators








electronic sign




34




panel








display system




36




panel







12a-n




protective cases




38a-n




handhold







14a-n




electronic





fixtures








display modules




40a-n




stacking dishes







16




lifting truss




42a-n




casters







18a-b




case halves




44




bottom







20




case base




46




panel







20a-b




case base halves




48




foam panel







22a




top




50




foam panel







22b




side




52




bottom







22c




side




54




panel







22d




front




56




foam panel







23a




top




58




foam panel







23b




side




59




securing straps







23c




side




60a-n




alignment fixtures







23d




front




63




handle fixtures







24




cutout




64




lifting lug







25




cutout




68




end







26a-n




latch actuators




70




end







28a-n




latch receivers




72




arrow







30a-n




latch receivers




74




arrow














Claims
  • 1. A process for providing and handling an electronic sign display comprising the steps of:a. packing and shipping a plurality of electronic display modules in a plurality of protective cases with at least one electronic display module in each protective case; b. partially unpacking each of said electronic display modules from said protective cases; c. aligning each of said partially unpacked electronic display modules with respect to each other to form a row of electronic display modules for an electronic display; d. connecting the aligned, partially unpacked electronic display modules formed in the row; and, e. lifting the row of the connected, aligned, partially unpacked electronic display modules to a fully unpacked condition separated from said protective cases, thereby forming an electronic sign display.
  • 2. The process of claim 1, further comprising the steps of:a. packing and shipping a second plurality of electronic display modules in the plurality of protective cases with at least one electronic display module of the second plurality of electronic display modules in each protective case; b. partially unpacking the at least one electronic display module of the second plurality of electronic display modules from each protective case; c. aligning each of said partially unpacked electronic display modules of the second plurality of electronic display modules with respect to each other to form a second row of electronic display modules for an electronic sign display; d. connecting the aligned, partially unpacked electronic display modules formed in the second row; e. placing a previously assembled row of electronic display modules atop the second row of electronic display modules and connecting the previously assembled row to the second row; and, f. lifting the connected previously assembled row and the second row of the connected, aligned, partially unpacked electronic display modules to fully unpack the second row from the protective cases thereby forming an electronic sign display.
  • 3. The process of claim 2, wherein the previously assembled row is the first row of the electronic sign display.
  • 4. The process of claim 2, wherein each of the protective cases contains an electronic display module of the first plurality and an electronic display module of the second plurality.
  • 5. The process of claim 4, wherein each protective case includes a base and a pair of separable case halves, and wherein the steps of partially unpacking include separating the separable case halves from the base with the partially unpacked electronic display modules remaining with the base.
  • 6. The process of claim 5, wherein each base includes casters and the steps of aligning include movement of at least one base and partially unpacked electronic display module relative to another base and partially unpacked electronic display module.
  • 7. The process of claim 2, wherein the previously assembled row is the first row of the electronic sign display, each of the protective cases contains an electronic display module of the first plurality and an electronic display module of the second plurality packed in a mirror image arrangement on a castered base and covered, during shipping, with separable case halves, and further wherein the steps of partially unpacking include separating the separable case halves from the base with the partially unpacked electronic display modules remaining with the base, and further comprising the step of rotating each of the castered bases 180 degrees subsequent to lifting the first row and prior to aligning the second row.
  • 8. The process of claim 7, wherein the partially unpacked electronic display modules protrude from the castered base to facilitate alignment and connection of the partially unpacked electronic display modules into a row.
  • 9. The process of claim 7, wherein the two electronic display modules packed together in a protective case are adjoining members of a column in the resulting electronic sign display.
  • 10. The process of claim 9, wherein each electronic display module includes a lifting lug, the lifting lug of an uttermost electronic display module of a column being available for connection to a lifting truss.
  • 11. The process of claim 2, wherein lifting the connected previously assembled row and the second row of the connected, aligned, partially unpacked electronic display modules to fully unpack the second row thereby forming an electronic sign display includes connection to a lifting truss.
  • 12. The process of claim 1, wherein the step of lifting the row is performed by a lifting truss.
  • 13. The process of claim 1, further comprising the disassembly steps of:a. lowering the electronic sign display and partially packing the row of connected, aligned, electronic display modules into aligned protective cases; b. disconnecting the partially packed electronic display modules; c. unaligning the disconnected, partially packed electronic display modules; and, d. fully packing the unaligned, disconnected partially packed electronic display modules within the protective cases.
  • 14. The process of claim 13, further comprising the step of shipping the fully packed electronic display modules.
  • 15. The process of claim 14, wherein the protective cases are castered and the shipping step includes moving the fully packed electronic display modules in the protective cases by rolling on the casters.
  • 16. The process of claim 13, wherein the protective cases are castered and the casters are available for movement of the partially packed electronic display modules and the unaligning step includes moving the partially packed, disconnected electronic display modules by rolling on the casters.
  • 17. The process of claim 13, further comprising the step of strapping the partially packed electronic display modules to bases of the protective cases.
  • 18. The process of claim 1, wherein each electronic display module is strapped within a protective case for shipping and the step of partially unpacking includes unstrapping the electronic display module from the protective case.
  • 19. The process of claim 1, wherein the each protective case includes a foam panel providing protection to an electronic display module packed therein.
  • 20. A process for providing and handling a transportable electronic sign display comprising the steps of:a. providing a plurality of electronic display modules in a plurality of protective cases having castered bases, the protective cases being characterized by the ability to be broken down to partially expose the electronic display modules for assembly into rows while maintaining support by the castered bases; b. partially exposing the plurality of electronic display modules by breaking down the protective cases; c. assembling a row of the plurality of partially exposed electronic display modules, the assembled row having support on the castered bases; and, d. lifting the assembled row from the castered bases to provide an electronic sign display.
  • 21. The process of claim 20, further comprising the steps of:a. providing a second plurality of electronic display modules in the protective cases having castered bases; b. partially exposing the second plurality of electronic display modules by further breaking down the protective cases; c. assembling a second row of the second plurality of partially exposed electronic display modules, the second assembled row having support on the castered bases; and, d. attaching the second assembled row beneath the first assembled row and lifting the second assembled row from the castered bases to fully expose the second assembled row and thereby provide a larger electronic sign display.
  • 22. The process of claim 21, further comprising the steps of:a. providing a third plurality of electronic display modules in a second plurality of protective cases having castered bases, the protective cases being characterized by the ability to be broken down to partially expose the electronic display modules therein; b. partially exposing the third plurality of electronic display modules by breaking down their protective cases; c. assembling a third row of the third plurality of partially exposed electronic display modules, the third assembled row having support on the castered bases of the second plurality of protective cases; and, d. attaching the third assembled row beneath the second assembled row and lifting the third assembled row from the castered bases of the second plurality of protective cases to provide a still larger electronic sign display.
  • 23. The process of claim 21, further comprising the steps of:a. lowering the previously lifted first and second assembled rows such that the second assembled row has support in the castered bases of the protective cases; b. separating the second assembled row from the first assembled row and relifting the first assembled row; and, c. disassembling the electronic display modules of the second assembled row and moving the disassembled electronic display modules in the castered bases.
  • 24. The process of claim 23, further comprising the step of reassembling the broken-down protective cases about the electronic display modules.
  • 25. The process of claim 24, wherein the step of reassembling is preceded by adding the first assembled row of electronic display modules to the castered bases of the protective cases.
  • 26. The process of claim 25, wherein electronic display modules are arranged in mirror image relationships in the castered bases and the castered bases are rotated 180 degrees between the step of separating the second assembled row from the first assembled row and the step of adding the first assembled row of electronic display modules to the castered bases of the protective cases.
  • 27. The process of claim 20, wherein the assembled row is lifted by attachment beneath a lifting truss.
  • 28. A process for deploying a transportable electronic signage array comprising the steps of:a. providing multiple protectively encased electronic display modules, each of the electronic display modules being carried upon a maneuverable case base and covered by a protective casing; b. removing the protective casings to uncover the electronic display modules carried upon the maneuverable case bases; c. aligning multiple electronic display modules from a rear position of adjacently positioned case bases in end-to-end relationship to form a first row of aligned electronic display modules while on adjacently positioned maneuverable case bases; d. lowering a lifting truss to meet and attach to the aligned electronic display modules in the first row; e. raising the lifting truss to remove the first row of aligned electronic display modules from the case bases to a position suspended above the adjacently positioned case bases; f. maneuveringly rotating the case bases 180 degrees to place remaining electronic display modules into a second row of aligned electronic display modules in alignment below the suspended first row of aligned electronic display modules; g. lowering the lifting truss and attached first row of aligned electronic display modules to meet and attach to the second row of aligned electronic display modules in adjacent case bases, thus forming an array of electronic display modules; and, h. again raising the lifting truss to remove the second row of aligned electronic display modules from adjacent case bases and to elevate the array to a viewable elevated position.
  • 29. A process for assembling an electronic sign array comprising the steps of:a. providing an electronic display module on a separable castered base; b. lifting the electronic display module from the separable castered base; c. providing another electronic display module on the separable castered base; d. mating the another electronic display module below the electronic display module; and, e. lifting the mated another electronic display module from the separable castered base by lifting the electronic display module to form an electronic sign array.
  • 30. The process of claim 29, including attaching the provided electronic display module to a row member electronic display module, the row member electronic display module being provided upon another separable castered base.
  • 31. The process of claim 30, including attaching the provided another electronic display module to another row member electronic display module, the another row member electronic display module being supported by the another separable castered base.
  • 32. The process of claim 31, further comprising the steps of:a. mating the another row member electronic display module below the row member electronic display module; and, b. lifting the mated another row member electronic display module from the another separable castered base simultaneously with the step of lifting the mated another electronic display module, by lifting the attached row member electronic display module simultaneously with the step of lifting the electronic display module.
  • 33. The process of claim 32, wherein the electronic display module and the another electronic display module are both provided on the same separable castered base and sequentially lifted therefrom, and wherein the row member electronic display module and the another row member electronic display module are both provided on the same another separable castered base and sequentially lifted therefrom.
  • 34. The process of claim 33, wherein the separable castered base and the another separable castered base are each rotated 180 degrees between the sequential liftings.
  • 35. The process of claim 33, wherein the electronic display module and the another electronic display module as provided on the same separable castered base both protrude therefrom and wherein the row member electronic display module and the another row member electronic display module as provided on the same another separable castered base both protrude therefrom, such that maneuvering the castered base and the another castered base facilitates attachment.
  • 36. The process of claim 29, further comprising the step of removing a case half from the separable castered base prior to the lifting step.
  • 37. The process of claim 36, wherein the case half is one of a pair of case halves on the separable castered base.
US Referenced Citations (11)
Number Name Date Kind
4546891 Lanigan et al. Oct 1985 A
4823952 Fletcher et al. Apr 1989 A
4951176 Bergfried et al. Aug 1990 A
5758442 Flanigan Jun 1998 A
5796376 Banks Aug 1998 A
5900850 Bailey et al. May 1999 A
6079564 DeNola Jun 2000 A
6147623 Rippen Nov 2000 A
6175342 Nicholson et al. Jan 2001 B1
6343006 Moscovitch et al. Jan 2002 B1
6504487 Pederson Jan 2003 B1