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The disclosure and prior art relates to lift devices and more particularly pertains to a new lift device for lifting and positioning loads.
An embodiment of the disclosure meets the needs presented above by generally comprising a tube, a pipe and a hoist. The tube is configured to insert into a hole in a top of a step ladder. The tube is configured to couple to the step ladder so that the tube is positioned substantially vertically. The pipe is complementary to and selectively slidably positionable within the tube. A plate is coupled to and extends perpendicularly from an upper end of the pipe. A hoist is coupled to the tube and operationally coupled to the pipe. The plate is configured to position a load, such as a metal conduit. The hoist is positioned to selectively compel the pipe vertically through the tube so that the load that is positioned on the plate is positioned at a desired height, such as proximate to a joist to which the metal conduit is to be is coupled.
There has thus been outlined, rather broadly, the more important features of the disclosure in order that the detailed description thereof that follows may be better understood, and in order that the present contribution to the art may be better appreciated. There are additional features of the disclosure that will be described hereinafter and which will form the subject matter of the claims appended hereto.
The objects of the disclosure, along with the various features of novelty which characterize the disclosure, are pointed out with particularity in the claims annexed to and forming a part of this disclosure.
The disclosure will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings wherein:
With reference now to the drawings, and in particular to
As best illustrated in
In one embodiment, the device 10 comprises a first coupler 18 and a second coupler 20. The first coupler 18 is coupled to the tube 12 proximate to an upper endpoint 22 of the tube 12. The second coupler 20 is complementary to the first coupler 18. The first coupler 18 is configured to couple to the second coupler 20 to couple the tube 12 to the step ladder. In another embodiment, the first coupler 18 comprises internal threading 24 that is positioned in the tube 12 adjacent to the upper endpoint 22. The second coupler 20 comprises a sleeve 26 that has a first end 28 and a second end 30. The first end 28 is externally threaded. The tube 12 is positioned to threadedly insert the first end 28 of the sleeve 26 to couple the sleeve 26 to the tube 12. The second end 30 is dimensionally larger than the hole in the top of the step ladder. The second end 30 of the sleeve 26 is configured to abut the step ladder to prevent the tube 12 from sliding downwardly through the hole in the top of the step ladder.
The pipe 14 is complementary to and selectively slidably positionable within the tube 12. In one embodiment, the pipe 14 comprises metal. A plate 32 is coupled to an upper end 34 of the pipe 14. The plate 32 extends perpendicularly from the pipe 14. The plate 32 is configured to position a load, such as a metal conduit used in heating, ventilation, and air conditioning systems. In one embodiment, the pipe 14 is centrally positioned on the plate 32. In another embodiment, the plate 32 is rectangularly shaped. In yet another embodiment, the plate 32 is squarely shaped.
The hoist 16 is coupled to the tube 12 and operationally coupled to the pipe 14. The hoist 16 is positioned to selectively compel the pipe 14 vertically through the tube 12. The load that is positioned on the plate 32 is positioned at a desired height, such as proximate to a joist to which the metal conduit is to be is coupled. In one embodiment, the hoist 16 comprises a ratchet 36 and a rope 38. The ratchet 36 is coupled to the tube 12. The rope 38 has a first endpoint 40 that is coupled to a lower end 42 of the pipe 14. The rope 38 is operationally coupled to the ratchet 36 so that the rope 38 is configured to be grasped proximate to a second endpoint 44 and pulled to selectively compel the rope 38 through the ratchet 36 so that the pipe 14 is compelled vertically through the tube 12. The load that is positioned on the plate 32 is positioned at the desired height, such as proximate to the joist to which the metal conduit is to be attached.
In one embodiment, the device 10 comprises a first connector 46 and a second connector 48. The first connector 46 is coupled to the tube 12. The second connector 48 is coupled to the ratchet 36. The second connector 48 is complementary to the first connector 46. The second connector 48 is positioned to couple to the first connector 46 to couple the ratchet 36 to the tube 12. In another embodiment, the first connector 46 comprises a band 50 that is positioned around the tube 12 proximate to the upper endpoint 22. The second connector 48 comprises a first hook 52. The band 50 is positioned to insert the first hook 52 to couple the ratchet 36 to the tube 12.
In one embodiment, the device 10 comprises a first fastener 54 and a second fastener 56. The first fastener 54 is coupled to the first endpoint 40 of the rope 38. The second fastener 56 is coupled to the pipe 14. The second fastener 56 is complementary to the first fastener 54. The second fastener 56 is positioned to couple to the first fastener 54 to couple the rope 38 to the pipe 14. In another embodiment, the first fastener 54 comprises a second hook 58. The second fastener 56 comprises a notch 60 that extends into the pipe 14 from the lower end 42. The notch 60 is positioned to insert the second hook 58 to couple the rope 38 to the pipe 14.
In use, the internal threading 24 is positioned in the tube 12 so that the tube 12 is positioned to threadedly insert the first end 28 of the sleeve 26. The sleeve 26 is coupled to the tube 12. The second end 30 of the sleeve 26 is configured to abut the step ladder to prevent the tube 12 from sliding downwardly through the hole in the top of the step ladder. The notch 60 that is positioned in the pipe 14 is positioned to insert the second hook 58 to couple the rope 38 to the pipe 14. The band 50 that is positioned on the tube 12 is positioned to insert the first hook 52 to couple the ratchet 36 to the tube 12. The rope 38 is configured to be grasped proximate to the second endpoint 44 and pulled to selectively compel the rope 38 through the ratchet 36. The pipe 14 is compelled vertically through the tube 12. The load that is positioned on the plate 32, such as the metal conduit used in heating, ventilation, and air conditioning systems, is selectively positioned at the desired height, such as proximate to the joist to which the metal conduit is to be is coupled.
With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of an embodiment enabled by the disclosure, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by an embodiment of the disclosure.
Therefore, the foregoing is considered as illustrative only of the principles of the disclosure. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the disclosure to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the disclosure. In this patent document, the word “comprising” is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article “a” does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be only one of the elements.
Number | Name | Date | Kind |
---|---|---|---|
1731324 | Bauer | Oct 1929 | A |
2046516 | Johnson | Jul 1936 | A |
2483239 | Sharpe | Sep 1949 | A |
4598795 | Larson | Jul 1986 | A |
5697597 | Goodbold | Dec 1997 | A |
D506858 | Kuehl et al. | Jun 2005 | S |
7350770 | Boyer | Apr 2008 | B1 |
7374380 | Huang | May 2008 | B2 |
8302279 | Hofer | Nov 2012 | B1 |
8820713 | Huang | Sep 2014 | B2 |
8960645 | Stewart | Feb 2015 | B1 |
20050269156 | Lanzafame | Dec 2005 | A1 |
20130092889 | Griffiths | Apr 2013 | A1 |
Number | Date | Country |
---|---|---|
WO2007134043 | Nov 2007 | WO |