Supports: cabinet structure – With movable components – Plural – diverse types
Reexamination Certificate
2000-08-18
2001-06-19
Cuomo, Peter M. (Department: 3636)
Supports: cabinet structure
With movable components
Plural, diverse types
C312S312000, C312S272000
Reexamination Certificate
active
06247771
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a dishwasher lower rack lifting means and more particularly pertains to a new lower rack lifting device for a dishwasher for loading and unloading the lower rack without having to stoop.
2. Description of the Prior Art
The use of a dishwasher lower rack lifting means is known in the prior art. More specifically, a dishwasher lower rack lifting means heretofore devised and utilized are known to consist basically of familiar, expected and obvious structural configurations, notwithstanding the myriad of designs encompassed by the crowded prior art which have been developed for the fulfillment of countless objectives and requirements.
Known prior art includes U.S. Pat. No. 4,097,099; U.S. Pat. No. 5,657,878; U.S. Pat. No. 3,809,450; U.S. Pat. No. 5,474,378; U.S. Pat. No. 3,726,580; and U.S. Pat. No. Des. 247,416.
While these devices fulfill their respective, particular objectives and requirements, the aforementioned patents do not disclose a new lower rack lifting device for a dishwasher. The inventive device includes a plurality of track members including first track members being adapted to be securely mounted upon and spaced to either side of a bottom wall of a dishwasher and also including second track members being adapted to be securely mounted to side walls of the dishwasher near an opening to the dishwasher; and also includes a scissors-like lifting assembly for lifting the lower rack upwardly upon the lower rack being moved out from the dishwasher; and further includes a plurality of roller members including first roller members being mounted upon the third track members, and also including second roller members being mounted to the scissors-like lifting assembly, and further including third roller members being adapted to be securely mounted to the lower rack and being movably disposed in the second track members.
In these respects, the lower rack lifting device for a dishwasher according to the present invention substantially departs from the conventional concepts and designs of the prior art, and in so doing provides an apparatus primarily developed for the purpose of loading and unloading the lower rack without having to stoop.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages inherent in the known types of dishwasher lower rack lifting means now present in the prior art, the present invention provides a new lower rack lifting device for a dishwasher construction wherein the same can be utilized for loading and unloading the lower rack without having to stoop.
The general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new lower rack lifting device for a dishwasher which has many of the advantages of the dishwasher lower rack lifting means mentioned heretofore and many novel features that result in a new lower rack lifting device for a dishwasher which is not anticipated, rendered obvious, suggested, or even implied by any of the prior art dishwasher lower rack lifting means, either alone or in any combination thereof.
To attain this, the present invention generally comprises a plurality of track members including first track members being adapted to be securely mounted upon and spaced to either side of a bottom wall of a dishwasher and also including second track members being adapted to be securely mounted to side walls of the dishwasher near an opening to the dishwasher; and also includes a scissors-like lifting assembly for lifting the lower rack upwardly upon the lower rack being moved out from the dishwasher; and further includes a plurality of roller members including first roller members being mounted upon the third track members, and also including second roller members being mounted to the scissors-like lifting assembly, and further including third roller members being adapted to be securely mounted to the lower rack and being movably disposed in the second track members.
There has thus been outlined, rather broadly, the more important features of the invention 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 invention that will be described hereinafter and which will form the subject matter of the claims appended hereto.
In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.
As such, those skilled in the art will appreciate that the conception, upon which this disclosure is based, may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention. It is important, therefore, that the claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present invention.
Further, the purpose of the foregoing abstract is to enable the U.S. Patent and Trademark Office and the public generally, and especially the scientists, engineers and practitioners in the art who are not familiar with patent or legal terms or phraseology, to determine quickly from a cursory inspection the nature and essence of the technical disclosure of the application. The abstract is neither intended to define the invention of the application, which is measured by the claims, nor is it intended to be limiting as to the scope of the invention in any way.
It is therefore an object of the present invention to provide a new lower rack lifting device for a dishwasher which has many of the advantages of the dishwasher lower rack lifting means mentioned heretofore and many novel features that result in a new lower rack lifting device for a dishwasher which is not anticipated, rendered obvious, suggested, or even implied by any of the prior art dishwasher lower rack lifting means, either alone or in any combination thereof.
It is another object of the present invention to provide a new lower rack lifting device for a dishwasher which may be easily and efficiently manufactured and marketed.
It is a further object of the present invention to provide a new lower rack lifting device for a dishwasher which is of a durable and reliable construction.
An even further object of the present invention is to provide a new lower rack lifting device for a dishwasher which is susceptible of a low cost of manufacture with regard to both materials and labor, and which accordingly is then susceptible of low prices of sale to the consuming public, thereby making such lower rack lifting device for a dishwasher economically available to the buying public.
Still yet another object of the present invention is to provide a new lower rack lifting device for a dishwasher which provides in the apparatuses and methods of the prior art some of the advantages thereof, while simultaneously overcoming some of the disadvantages normally associated therewith.
Still another object of the present invention is to provide a new lower rack lifting device for a dishwasher for loading and unloading the lower rack without having to stoop.
Yet another object of the present invention is to provide a new lower rack lifting device for a dishwasher which includes a plurality of track members including first track members being adapted to be securely mounted upon and spaced to either side of a bottom wall of a dishwasher and also including second track members being adapted to be securely mounted to side walls of the dishwasher near an opening to the dishwasher; and also includes a scissor
Cuomo Peter M.
Hansen James O.
LandOfFree
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