Package making – With cover-adjunct application or formation – Adjunct comprising nonencircling strip – e.g. – stamp – label...
Reexamination Certificate
1999-10-08
2001-10-30
Vo, Peter (Department: 3721)
Package making
With cover-adjunct application or formation
Adjunct comprising nonencircling strip, e.g., stamp, label...
C248S188000, C248S188100, C403S362000, C403S374300
Reexamination Certificate
active
06308495
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to case, carton, or box sealer machines, equipment, or apparatus, and more particularly to a base leveler mechanism incorporated within such machine, equipment, or apparatus so as to quickly, easily, and readily achieve elevational and leveling adjustments to the base legs of the machine, equipment, or apparatus.
BACKGROUND OF THE INVENTION
In connection with various industrial or commercial machinery, equipment, or apparatus, it is often critically important that the support legs or other similar support structure provided upon the machinery, equipment, or apparatus are properly adjusted with respect to their elevational levels or vertical dispositions so as not only to properly support the apparatus, machinery, or equipment at the desired elevation or orientation, but in addition, to ensure that the support legs or support structure together define a support arrangement for the machinery, apparatus, or equipment which renders the machinery, apparatus, or equipment truly level. In this manner, proper operation of the machinery, equipment, or apparatus components, without such components encountering operational problems due to the non-level disposition of the machinery, equipment, or apparatus, is ensured.
One known type of vertical adjustment or leveling system comprises the use of, for example, a leg extension which is adapted to be adjustably affixed to a frame member of the machine, equipment, or apparatus. In particular, one of the leg extension or frame member components is provided with a single aperture, and the other one of the leg extension or frame member components is provided with an array or plurality of vertically spaced apertures. A bolt or other suitable fastener is then adapted to be inserted into or extend through the single aperture defined within either the leg extension or the frame member, as well as to be inserted into or extend through a selected one of the plurality of apertures defined within the other one of the leg extension or frame member components so as to affix the leg extension at a particular vertical position with respect to the frame member. The operative disadvantage of such a system, however, is at least twofold.
Firstly, in order to perform a height adjustment of the leg extension, the components of the support system must in effect be disassembled. More particularly, the bolt or other suitable fastener must firstly be removed, the leg extension is then able to be moved or repositioned with respect to the frame member of the machine, equipment, or apparatus, and subsequently, when the leg extension is disposed at the new desired location with respect to the frame member, the bolt or other fastener must then be reinserted into the aligned apertures of the leg extension and the frame member components and retightened so as to in fact securely affix the leg extension and frame member components together. Secondly, in view of the fact that one of the components is provided with the array or plurality of separate, vertically spaced apertures, when the repositioned bolt or other similar fastener is reinserted or repositioned within a particular one of such vertically spaced apertures, it is to be appreciated that the leg extension is not able to be repositioned or relocated with respect to the frame member at any desirable elevational level but, in effect, can only be elevationaly repositioned or adjusted with respect to the frame member in a precisely defined incremental manner as dictated by means of the array of vertically spaced apertures.
Accordingly, a need exists in the machinery, apparatus, or equipment art for a base leveling or leg adjustment system which can readily, easily, and quickly permit leg extension members, of such various machinery, equipment, or apparatus to be repositioned or elevationally adjusted in, in effect, a continuous, infinite manner such that precise leveling or elevational adjustment of such leg extension or leveling systems can in fact be readily, easily, and quickly achieved whereby the machinery, equipment, or apparatus can be properly or truly leveled or oriented as a result of which proper operation of the various operational components of the machinery, apparatus, or equipment will be ensured.
OBJECTS OF THE INVENTION
Accordingly, it is an object of the present invention to provide a new and improved leveling or elevational positional adjustment system.
Another object of the present invention is to provide a new and improved leveling or elevational positional adjustment system for use in connection with various machinery, equipment, or apparatus, and particularly in connection with case sealers.
An additional object of the present invention is to provide a new and improved leveling or elevational positional adjustment system for use in connection with various machinery, equipment, or apparatus, and particularly in connection with case sealers, which effectively overcomes the various operational drawbacks or disadvantages characteristic of the known PRIOR ART.
A further object of the present invention is to provide a new and improved leveling or elevational positional adjustment system for use in connection with various machinery, equipment, or apparatus, and particularly in connection with case sealers, which effectively overcomes the various operational drawbacks or disadvantages characteristic of the known PRIOR ART in that the leg extension adjustment and leveling operations can be readily, quickly, and easily performed without requiring any disassembly of the relative component parts of the machinery, equipment, or apparatus base or support system, and wherein further, substantially continuous infinitesimal adjustment of the elevational disposition of the leg extension components relative to the machinery, equipment, or apparatus frame member can be achieved.
SUMMARY OF THE INVENTION
The foregoing and other objectives are achieved in accordance with the principles and teachings of the present invention through the provision of a new and improved leveling or elevational positional adjustment system for use in connection with various machinery, equipment, or apparatus, and particularly in connection with case sealers, wherein such leveling or elevational positional adjustment system comprises essentially a frame leg member, an extension leg member, and an extension leg stop member. The frame leg member comprises an external corner component having a substantially arcuate configuration, and an internal cross-plate component disposed across the interior of the corner component so as to effectively define an interior space having a substantially triangular configuration. The extension leg member has an arcuate cross-sectional configuration essentially matching that of the external corner component of the frame leg member so as to be disposed in surface-to-surface contact with the external corner component of the frame leg member when the extension leg member is inserted into the frame leg member, and the extension leg stop member has an external arcuate cross-sectional configuration also substantially matching that of the extension leg member.
An actuator screw is mounted upon the cross-plate component of the frame leg member and is engaged with the extension leg stop member so as to effectively force the extension leg stop member into surface-to-surface contact with the extension leg member such that the extension leg member is in turn forced into surface-to-surface contact with the frame leg member. In this manner, the extension leg member is positionally adjusted to, and retained at, any particular longitudinal position with respect to the frame leg member simply by untightening the actuator screw, adjusting the disposition of the extension leg member relative to the frame leg member, and retightening the actuator screw so as to secure the extension leg member at its new position with respect to the frame leg member.
REFERENCES:
patent: 3344756 (1967-10-01), Kelson
patent: 3964404 (1976-06-01), Mueller et al.
patent: 4633642 (1987-01-0
Illinois Tool Works Inc.
Schwartz & Weinrieb
Truong Thanh K
Vo Peter
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