Description:PETRI DISH FOR ACTIVELY GROWING AEROBIC MICROORGANISMS WITH VENTILATED LID

FIELD OF THE INVENTION
[001] The present invention relates to the field of microbial cultures, and more particularly, the present invention relates to the petri dish for actively growing aerobic microorganisms with a ventilated lid.

BACKGROUND FOR THE INVENTION:
[002] The following discussion of the background to the invention is intended to facilitate an understanding of the present invention. However, it should be appreciated that the discussion is not an acknowledgment or admission that any of the material referred to was published, known, or part of the common general knowledge in any jurisdiction as of the priority date of the application. The details provided herein the background if belongs to any publication is taken only as a reference for describing the problems, in general terminologies or principles or both of science and technology in the associated prior art.
[003] The Petri dish with a filter lid has been designed to overcome the drawbacks associated with the conventional glass Petri dish. The present invention is directed to a Petri dish with improved properties with respect to its enhanced ability to be used with increased efficiency, which permits more efficient use of the media required to culture microorganisms with oxygen requirements and maintenance of sterility while incubation of the microbial cultures.
[004] During the process of Petri dish incubation, the water vapors generally deposit on the lid, and the whole lid is covered by water droplets. These water droplets may fall on the surface of soft agar, increasing the risk of cross-contamination and accumulation of water on the surface of the agar.
[005] Moreover, an agar gel typically contains over 97% water by mass, and condensation readily forms on the plate lid, which obscures the morphological observation of microbial colonies.
[006] In light of the foregoing, there is a need for the Petri dish for actively growing aerobic microorganisms with a ventilated lid that overcomes problems prevalent in the prior art. The current invention, which comprises a Petri dish attached with a filtered lid, has been designed to overcome the above-mentioned drawbacks.

OBJECTS OF THE INVENTION:
[007] Some of the objects of the present disclosure, which at least one embodiment herein satisfies, are as follows.
[008] The principal object of the present invention is to overcome the disadvantages of the prior art by providing the Petri dish for actively growing aerobic microorganisms with a ventilated lid.
[009] An object of the present invention is to provide the Petri dish for actively growing aerobic microorganisms with a ventilated lid that is useful for growing the microbial culture on a microbiological growth medium in a Petri dish with a filtered lid, which allows the exchange of gases/vapors while maintaining aseptic conditions.
[010] Another object of the present invention is to provide the Petri dish for actively growing aerobic microorganisms with a ventilated lid that enhances the ability of the petri dish to be used with increased efficiency.
[011] Another object of the present invention is to provide the Petri dish for actively growing aerobic microorganisms with a ventilated lid that that permits more efficient use of the media required to culture microorganisms with oxygen requirements and maintenance of sterility while incubation of the microbial cultures.
[012] Yet another object of the present invention is to provide the Petri dish for actively growing aerobic microorganisms with a ventilated lid that is easy to use, manufacture and user and culture friendly.
[013] Other objects and advantages of the present disclosure will be more apparent from the following description, which is not intended to limit the scope of the present disclosure.

SUMMARY OF THE INVENTION:
[014] The present invention relates in a general way to microbial cultures in a Petri dish with a filtered lid. The procedure is useful for growing the microbial culture on a microbiological growth medium in a Petri dish with a filtered lid, which allows the exchange of gases/vapors while maintaining aseptic conditions.
[015] In one aspect of the present invention, the dish includes a filtered lid and a bottom plate; wherein the bottom plate and the filtered lid are assembled using a single-start thread locking mechanism.
[016] In another aspect of the present invention, the filtered lid has threads on an inner wall that are compatible with threads on an outer wall of the bottom plate.
[017] In another aspect of the present invention, the lid is fitted with a 0.4µm filter to facilitate sterile gaseous exchange.
[018] In another aspect of the present invention, the filter has PTFE membrane (Polytetrafluoroethylene).
[019] In another aspect of the present invention, the material of the Petri dish (the bottom plate and the filtered lid) is polypropylene.

BRIEF DESCRIPTION OF DRAWINGS:
[020] Reference will be made to embodiments of the invention, examples of which may be illustrated in accompanying figures. These figures are intended to be illustrative, not limiting. Although the invention is generally described in the context of these embodiments, it should be understood that it is not intended to limit the scope of the invention to these particular embodiments.
[021] Fig. 1: Schematic representation of the Petri dish with a filter lid.

DETAILED DESCRIPTION OF DRAWINGS:
[022] While the present invention is described herein by way of example using embodiments and illustrative drawings, those skilled in the art will recognize that the invention is not limited to the embodiments of drawing or drawings described and are not intended to represent the scale of the various components. Further, some components that may form a part of the invention may not be illustrated in certain figures, for ease of illustration, and such omissions do not limit the embodiments outlined in any way. It should be understood that the drawings and the detailed description thereto are not intended to limit the invention to the particular form disclosed, but on the contrary, the invention is to cover all modifications, equivalents, and alternatives falling within the scope of the present invention as defined by the appended claim.
[023] As used throughout this description, the word "may" is used in a permissive sense (i.e. meaning having the potential to), rather than the mandatory sense, (i.e. meaning must). Further, the words "a" or "an" mean "at least one” and the word “plurality” means “one or more” unless otherwise mentioned. Furthermore, the terminology and phraseology used herein are solely used for descriptive purposes and should not be construed as limiting in scope. Language such as "including," "comprising," "having," "containing," or "involving," and variations thereof, is intended to be broad and encompass the subject matter listed thereafter, equivalents, and additional subject matter not recited, and is not intended to exclude other additives, components, integers, or steps. Likewise, the term "comprising" is considered synonymous with the terms "including" or "containing" for applicable legal purposes. Any discussion of documents, acts, materials, devices, articles, and the like are included in the specification solely for the purpose of providing a context for the present invention. It is not suggested or represented that any or all these matters form part of the prior art base or were common general knowledge in the field relevant to the present invention.
[024] In this disclosure, whenever a composition or an element or a group of elements is preceded with the transitional phrase “comprising”, it is understood that we also contemplate the same composition, element, or group of elements with transitional phrases “consisting of”, “consisting”, “selected from the group of consisting of, “including”, or “is” preceding the recitation of the composition, element or group of elements and vice versa.
[025] The present invention is described hereinafter by various embodiments with reference to the accompanying drawing, wherein reference numerals used in the accompanying drawing correspond to the like elements throughout the description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiment set forth herein. Rather, the embodiment is provided so that this disclosure will be thorough and complete and will fully convey the scope of the invention to those skilled in the art. In the following detailed description, numeric values and ranges are provided for various aspects of the implementations described. These values and ranges are to be treated as examples only and are not intended to limit the scope of the claims. In addition, several materials are identified as suitable for various facets of the implementations. These materials are to be treated as exemplary and are not intended to limit the scope of the invention.
[026] The present invention relates in a general way to microbial cultures in a Petri dish with a filtered lid. The procedure is useful for growing the microbial culture on a microbiological growth medium in a Petri dish with a filtered lid, which allows the exchange of gases/vapors while maintaining aseptic conditions.
[027] The current invention comprises two parts: a bottom plate of the Petri dish and an upper lid with a filter.
[028] The filtered lid has threads on the inner wall that are compatible with the threads on the outer wall of the bottom plate. The upper lid is further fitted with a 0.4µm filter to facilitate sterile gaseous exchange. The material of the Petri dish is polypropylene. The filter is 0.4 µm PTFE membrane (Polytetrafluoroethylene).
[029] Fig. 1 shows the 3D isometric view of the Petri dish, where both the bottom plate and filtered lid are assembled using a single-start thread locking mechanism. A mounted lid (polypropylene) with a PTFE filter is also shown. With reference to the schematic representation, a microbial culture device/apparatus has been described that may facilitate the manipulation of microbial cultures/ samples in a laboratory or controlled environment.
[030] The disclosure has been described with reference to the accompanying embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein.
[031] The foregoing description of the specific embodiments so fully revealed the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the scope of the embodiments as described herein.
, Claims:We Claim:
1) A petri dish for actively growing aerobic microorganisms, the dish comprises a filtered lid and a bottom plate; wherein the bottom plate and the filtered lid are assembled using a single-start thread locking mechanism.

2) The petri dish as claimed in claim 1, wherein the filtered lid has threads on an inner wall that are compatible with threads on an outer wall of the bottom plate.

3) The petri dish as claimed in claim 1, wherein the lid is fitted with a 0.4µm filter to facilitate sterile gaseous exchange.

4) The petri dish as claimed in claim 3, wherein the filter has PTFE membrane (Polytetrafluoroethylene).

5) The petri dish as claimed in claim 1, wherein the material of the Petri dish (the bottom plate and the filtered lid) is polypropylene.