Patent Publication Number: US-8967440-B2

Title: Wrapping film dispenser

Description:
BACKGROUND 
     Conventional wrapping film dispensers generally include a container with a sharp serrated knife and/or a cutting blade attached to the container for cutting a sheet of a wrapping film. To wrap an item with a wrapping film extracted from a conventional wrapping film dispenser, a user has to open the container to draw out the wrapping film and tear the wrapping film along the cutting blade mounted on the container, which may result in the wrapping film inadvertently contacting other surfaces, for example, a user&#39;s hand about which the wrapping film may get wrapped, thereby making it difficult to wrap the item. Moreover, the cutting blade may cause injury to the user while the user operates the wrapping film dispenser with both hands and tries to cut the wrapping film, which makes the conventional wrapping film dispenser unsafe. Furthermore, since the conventional wrapping film dispenser requires the user to cut the wrapping film first and then wrap an item, the length of the wrapping film cut may be too much or too less which results in wastage of the wrapping film. 
     Furthermore, after cutting a sheet of wrapping film, the wrapping film may roll back into the container, making it difficult for the user to retrieve a leading edge of the wrapping film out of the container for subsequent extraction of another sheet of wrapping film out of the container. The user may therefore have to open the conventional wrapping film dispenser for subsequent usage, that is, to draw out the wrapping film and then close the conventional film dispenser to cut the drawn wrapping film, which leads to difficulties in wrapping an item. 
     Hence, there is a long felt but unresolved need for a safe, easy to operate, blade free wrapping film dispenser that allows dispensing of a wrapping film of a sufficient length for wrapping an item of any size without the user&#39;s hand being caught in the wrapping film, and that allows cutting of the wrapping film without the use of sharp cutting objects such as knifes, cutting blades, etc. Moreover, there is a need for a wrapping film dispenser that restricts movement of the wrapping film extracted out of a container of the wrapping film dispenser, thereby preventing the wrapping film from rolling back into the container. Furthermore, there is a need for a wrapping film dispenser that leaves a sufficient length of the wrapping film free to allow a user to easily extract another sheet of wrapping film from the container for subsequent usage. Furthermore, there is a need for a wrapping film dispenser that allows convenient insertion of a roll of wrapping film into the container. 
     SUMMARY OF THE INVENTION 
     This summary is provided to introduce a selection of concepts in a simplified form that are further disclosed in the detailed description of the invention. This summary is not intended to identify key or essential inventive concepts of the claimed subject matter, nor is it intended for determining the scope of the claimed subject matter. 
     The wrapping film dispenser disclosed herein addresses the above mentioned need for dispensing a wrapping film of a sufficient length for wrapping an item of any size without a user&#39;s hand being caught in the wrapping film, and for cutting the wrapping film without the use of sharp cutting objects such as knifes, cutting blades, etc. The wrapping film is, for example, a thin sheet of a flexible laminate plastic film, a metallic foil, etc., that may be used for wrapping or packaging an item such as a food item. Moreover, the wrapping film dispenser disclosed herein restricts movement of the wrapping film extracted out of a container of the wrapping film dispenser, thereby preventing the wrapping film from rolling back into the container. Furthermore, the wrapping film dispenser disclosed herein leaves a sufficient length of the wrapping film free to allow the user to easily extract another sheet of wrapping film from the container for subsequent usage. Furthermore, the wrapping film dispenser disclosed herein allows convenient insertion of a roll of wrapping film into the container. 
     The wrapping film dispenser disclosed herein comprises a generally cylindrical container that defines a cavity configured to accommodate a roll of a wrapping film. The cylindrical container further defines a slot extending along a length of the cylindrical container for extracting a sheet of wrapping film through the slot. In an embodiment, the wrapping film dispenser disclosed herein further comprises a key member having an opening for inserting a leading edge of the wrapping film, for guiding the roll of wrapping film into the cavity of the cylindrical container, and for guiding a sheet of wrapping film out through the slot of the cylindrical container. In an embodiment, the key member is configured to fit into a complementary groove defined on a lid that covers an open one of the opposing ends of the cylindrical container. 
     The wrapping film dispenser disclosed herein further comprises a gripping pad member, a locking element, and a cutting frame. The gripping pad member is rigidly attached on an upper outer surface of the cylindrical container at a first lengthwise edge of the slot. The gripping pad member extends along the length of the cylindrical container. The locking element is rigidly attached on a lower outer surface of the cylindrical container proximal to a second lengthwise edge of the slot. The locking element is, for example, of an arch shape and extends along the length of the cylindrical container. The locking element is rigidly attached on the lower outer surface of the cylindrical container proximal to the second lengthwise edge of the slot, for example, by hinge members. The locking element is configured to extend from the lower outer surface of the cylindrical container towards the gripping pad member on the upper outer surface of the cylindrical container, press the sheet of wrapping film against the gripping pad member during extraction of the sheet of wrapping film through the slot, and restrict movement and prevent roll back of the extracted sheet of wrapping film. 
     The cutting frame is rigidly attached proximal to the first lengthwise edge of the slot above the gripping pad member and extends along the length of the cylindrical container. The cutting frame comprises a protruding element located at a predetermined location, for example, a mid-section of the cutting frame. The protruding element is configured to cut the sheet of wrapping film extracted out through the slot, when the cylindrical container is twisted with a single hand of a user. The protruding element is configured to extend outwardly by a predetermined distance from the upper outer surface of the cylindrical container for retaining a portion of a first sheet of wrapping film of a predetermined length at the slot of the cylindrical container for subsequent extraction of second sheet of wrapping film, after the protruding element cuts the first sheet of wrapping film. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The foregoing summary, as well as the following detailed description of the invention, is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, exemplary constructions of the invention are shown in the drawings. However, the invention is not limited to the specific methods and components disclosed herein. 
         FIG. 1  exemplarily illustrates a front isometric view of a wrapping film dispenser. 
         FIG. 2  exemplarily illustrates an exploded isometric view of the wrapping film dispenser. 
         FIG. 3  exemplarily illustrates a front isometric view of the wrapping film dispenser prior to insertion of a roll of wrapping film into a cavity of a cylindrical container of the wrapping film dispenser. 
         FIG. 4  exemplarily illustrates a side sectional view of the wrapping film dispenser, showing a locking element extending towards a gripping pad member. 
         FIG. 5  exemplarily illustrates an isometric view of the wrapping film dispenser, showing the opposing ends of the cylindrical container with guide members of a cutting frame, cut away from the cylindrical container. 
         FIG. 6  exemplarily illustrates a top orthographic view of the wrapping film dispenser, showing the cutting frame and a lid. 
         FIG. 7A  exemplarily illustrates a front perspective view of a lid of the wrapping film dispenser. 
         FIG. 7B  exemplarily illustrates a front orthographic view of the lid of the wrapping film dispenser. 
         FIG. 7C  exemplarily illustrates a rear perspective view of the lid of the wrapping film dispenser. 
         FIG. 7D  exemplarily illustrates a rear orthographic view of the lid of the wrapping film dispenser. 
         FIG. 7E  exemplarily illustrates a top orthographic view of the lid of the wrapping film dispenser. 
         FIG. 8A  exemplarily illustrates an isometric view of a key member of the wrapping film dispenser. 
         FIG. 8B  exemplarily illustrates front orthographic view of the key member of the wrapping film dispenser. 
         FIG. 9  exemplarily illustrates a method for dispensing a sheet of wrapping film. 
         FIG. 10  exemplarily illustrates a front isometric view of the wrapping film dispenser, showing disengagement of the key member from the lid that covers an open opposing end of the cylindrical container. 
         FIG. 11  exemplarily illustrates a front isometric view, showing insertion of a leading edge of a wrapping film through an opening of the key member of the wrapping film dispenser. 
         FIG. 12  exemplarily illustrates a front isometric view, showing insertion of a roll of wrapping film into the cavity of the cylindrical container via a leading edge of the wrapping film. 
         FIG. 13  exemplarily illustrates a front isometric view, showing extraction of a sheet of wrapping film through the slot of the cylindrical container of the wrapping film dispenser. 
         FIG. 14  exemplarily illustrates a side sectional view, showing pressing of the extracted sheet of wrapping film by the locking element against the gripping pad member. 
         FIG. 15  exemplarily illustrates a front isometric view, showing wrapping of an item using a sheet of wrapping film extracted through the slot of the cylindrical container of the wrapping film dispenser. 
         FIG. 16  exemplarily illustrates a front isometric view, showing cutting of the extracted sheet of wrapping film by a protruding element of the cutting frame mounted on the cylindrical container of the wrapping film dispenser. 
         FIG. 17  exemplarily illustrates a side orthographic view, showing cutting of the extracted sheet of wrapping film by the protruding element of the cutting frame mounted on the cylindrical container of the wrapping film dispenser. 
         FIG. 18  exemplarily illustrates a front isometric view, showing a portion of the sheet of wrapping film of a predetermined length retained at the slot of the cylindrical container after cutting the sheet of wrapping film, for subsequent extraction of another sheet of wrapping film. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       FIG. 1  exemplarily illustrates a front isometric view of a wrapping film dispenser  100 . The wrapping film dispenser  100  disclosed herein comprises a generally cylindrical container  101 . For purposes of illustration, the detailed description refers to a container  101  of a generally cylindrical shape; however the scope of the wrapping film dispenser  100  disclosed herein is not limited to a container  101  of a generally cylindrical shape but may be extended to include a container having any shape configured to conform to a shape of a roll  102   a  of wrapping film  102  as exemplarily illustrated in  FIGS. 13-14 , for accommodating the roll  102   a  of wrapping film  102 . The container  101  may therefore have, for example, a cuboidal shape for accommodating a cuboidal shaped roll of wrapping film  102 . The wrapping film  102  is, for example, a thin sheet of a flexible laminate plastic film, a metallic foil, etc., that may be used for wrapping or packaging an item such as a food item. 
     The cylindrical container  101  defines a slot  114  having a first lengthwise edge  114   a  and a second lengthwise edge  114   b  as exemplarily illustrated in  FIG. 2 . The slot  114  extends along the length of the cylindrical container  101  for extracting a sheet of wrapping film  102  through the slot  114 . A lid  108 , exemplarily illustrated in  FIGS. 7A-7E , covers an open one of the opposing ends  101   a  and  101   b  of the cylindrical container  101 , that is, the open opposing end  101   a  as exemplarily illustrated in  FIG. 1 . In an embodiment, the other opposing end  101   b  of the cylindrical container  101  is sealed. The lid  108  accommodates a key member  107  having an opening  107   a  as disclosed in the detailed description of  FIGS. 8A-8B . The wrapping film dispenser  100  disclosed herein further comprises a gripping pad member  103 , a locking element  104  rigidly attached to the cylindrical container  101  by hinge members  109   a  and  109   b , and a cutting frame  105  having a protruding element  106  as disclosed in the detailed description of  FIG. 2 . 
       FIG. 2  exemplarily illustrates an exploded isometric view of the wrapping film dispenser  100 . The cylindrical container  101  of the wrapping film dispenser  100  disclosed herein defines a cavity  112  configured to accommodate a roll  102   a  of wrapping film  102  as exemplarily illustrated in  FIGS. 13-14 .  FIG. 2  also exemplarily illustrates the slot  114  of the cylindrical container  101  having a first lengthwise edge  114   a  and a second lengthwise edge  114   b . The gripping pad member  103  of the wrapping film dispenser  100  disclosed herein is rigidly attached on an upper outer surface  101   e  of the cylindrical container  101  at the first lengthwise edge  114   a  of the slot  114 . The gripping pad member  103  extends along the length of the cylindrical container  101 . The gripping pad member  103  is made of a gripping material, for example, rubber. The locking element  104  of the wrapping film dispenser  100  is rigidly attached on a lower outer surface  101   f  of the cylindrical container  101  proximal to the second lengthwise edge  114   b  of the slot  114 . The locking element  104  extends along the length of the cylindrical container  101 . 
     The lower lengthwise edge  104   a  of the locking element  104  is rigidly attached on the lower outer surface  101   f  of the cylindrical container  101  proximal to the second lengthwise edge  114   b  of the slot  114 , for example, by connecting the hinge members  109   a  extending from the lower lengthwise edge  104   a  of the locking element  104  to the hinge members  109   b  positioned on the lower outer surface  101   f  of the cylindrical container  101 . The hinge members  109   a  and  109   b  are connected to each other by first positioning a spring  110  between the hinge members  109   a  and then positioning the hinge members  109   a  with the spring  110  between the hinge members  109   b  and thereafter inserting a pin  111  through the hinge members  109   a  and  109   b . The locking element  104  is configured, for example, as an arch shaped metallic element to conform to the shape of the lower outer surface  101   f  of the cylindrical container  101  as exemplarily illustrated in  FIG. 4 . The locking element  104  is configured to extend from the lower outer surface  101   f  of the cylindrical container  101  towards the gripping pad member  103  on the upper outer surface  101   e  of the cylindrical container  101  as exemplarily illustrated in  FIG. 4 . 
     The cutting frame  105  of the wrapping film dispenser  100  disclosed herein is rigidly attached proximal to the first lengthwise edge  114   a  of the slot  114  above the gripping pad member  103 . The cutting frame  105  extends horizontally along the length of the cylindrical container  101 . The cutting frame  105  comprises a protruding element  106  located at a predetermined location, for example, a mid-section  105   a  of the cutting frame  105 . The protruding element  106  of the cutting frame  105  is configured to extend outwardly by a predetermined distance  106   a  from the upper outer surface  101   e  of the cylindrical container  101 . The protruding element  106  is configured to cut the sheet of wrapping film  102  extracted out through the slot  114 , when the cylindrical container  101  is twisted by a user using a single hand. The configuration of the protruding element  106  allows a user to conveniently and safely cut the sheet of wrapping film  102  extracted out through the slot  114 . Arch shaped guide members  113   a  and  113   b  are positioned at the opposing ends  105   b  and  105   c  respectively, of the cutting frame  105 . The guide members  113   a  and  113   b  are, for example, about 4 millimeters (mm) off the upper outer surface  101   e  of the cylindrical container  101 . The distance between the guide members  113   a  and  113   b  at the opposing ends  105   b  and  105   c  respectively, of the cutting frame  105  is, for example, of the same length as the length of the slot  114 . As exemplarily illustrated in  FIG. 2 , the opposing end  101   a  of the cylindrical container  101  comprises notches  101   c  and  101   d  positioned diametrically opposite to each other. The notches  101   c  and  101   d  are configured to receive connectors  108   a  and  108   g  respectively, of the lid  108  exemplarily illustrated in  FIGS. 7A-7E . 
       FIG. 3  exemplarily illustrates a front isometric view of the wrapping film dispenser  100  prior to insertion of a roll  102   a  of wrapping film  102  into the cavity  112  of the cylindrical container  101  of the wrapping film dispenser  100 . The cavity  112  defined in the cylindrical container  101  accommodates the roll  102   a  of wrapping film  102  as exemplarily illustrated in  FIGS. 13-14 . The gripping pad member  103  and the cutting frame  105  having the protruding element  106  are mounted on the upper outer surface  101   e  of the cylindrical container  101 , while the locking element  104  is mounted on the lower outer surface  101   f  of the cylindrical container  101  as disclosed in the detailed description of  FIGS. 1-2 . The protruding element  106  located at the mid-section  105   a  of the cutting frame  105  has, for example, a tongue-like configuration. The protruding element  106  of the cutting frame  105  is configured to extend outwardly by a predetermined distance  106   a  from the upper outer surface  101   e  of the cylindrical container  101  for retaining a portion  102   c  of a first sheet of wrapping film  102  of a predetermined length at the slot  114  of the cylindrical container  101  as exemplarily illustrated in  FIG. 18 , for subsequent extraction of a second sheet of wrapping film  102  by a user, after the protruding element  106  cuts the first sheet of wrapping film  102 . The protruding element  106  is located, for example, approximately 20 millimeters away from the upper outer surface  101   e  of the cylindrical container  101 . The location of the protruding element  106  away from the cylindrical container  101  enables the retained portion  102   c  of the cut wrapping film  102  to project outside the slot  114  of the cylindrical container  101  for subsequent use. 
       FIG. 4  exemplarily illustrates a side sectional view of the wrapping film dispenser  100 , showing the locking element  104  extending towards the gripping pad member  103 .  FIG. 4  shows the positioning of the gripping pad member  103  and the locking element  104  with respect to the first lengthwise edge  114   a  and the second lengthwise edge  114   b  respectively, of the slot  114  of the cylindrical container  101 . The locking element  104  on the lower outer surface  101   f  of the cylindrical container  101  proximal to the second lengthwise edge  114   b  of the slot  114  extends towards the gripping pad member  103  on the upper outer surface  101   e  of the cylindrical container  101  and is configured to press the sheet of wrapping film  102  against the gripping pad member  103  during the extraction of the sheet of wrapping film  102  through the slot  114  as exemplarily illustrated in  FIG. 14 , and to restrict movement and prevent roll back of the extracted sheet of wrapping film  102  as disclosed in the detailed description of  FIG. 14 . 
       FIG. 5  exemplarily illustrates an isometric view of the wrapping film dispenser  100 , showing the opposing ends  101   a  and  101   b  of the cylindrical container  101  with the guide members  113   a  and  113   b  respectively of the cutting frame  105 , cut away from the cylindrical container  101 . When assembled as exemplarily illustrated in  FIG. 2 , the guide members  113   a  and  113   b  positioned at the opposing ends  105   b  and  105   c  respectively of the cutting frame  105 , support the cutting frame  105  and enable the wrapping film  102  to be extracted efficiently. The guide members  113   a  and  113   b  are configured to ensure that the wrapping film  102  is drawn out smoothly from the slot  114  without being cut by the ends  114   c  and  114   d  of the slot  114  even when the user draws out the wrapping film  102  in a non-linear manner. Furthermore, the guide members  113   a  and  113   b  guide the movement of the locking element  104 . 
       FIG. 6  exemplarily illustrates a top orthographic view of the wrapping film dispenser  100 , showing the cutting frame  105  and the lid  108 . The lid  108  covers an open opposing end  101   a  of the cylindrical container  101 . The lid  108  is attached to the cylindrical container  101  by inserting the connector  108   a  of the lid  108  into the notch  101   c  defined on the opposing end  101   a  of the cylindrical container  101  for locking the lid  108  to the cylindrical container  101 . The diametrically opposite connector  108   g  (not shown in  FIG. 6 ) of the lid  108  is simultaneously inserted into the diametrically opposite notch  101   d  (not shown in  FIG. 6 ) defined on the opposing end  101   a  of the cylindrical container  101 .  FIG. 6  also shows the outward extension of the protruding element  106  of the cutting frame  105  by a predetermined distance  106   a  from the upper outer surface  101   e  of the cylindrical container  101 . The outward extension of the protruding element  106  of the cutting frame  105  allows a portion  102   c  of the sheet of wrapping film  102  of a predetermined length to be retained at the slot  114  of the cylindrical container  101  as exemplarily illustrated in  FIG. 18 , after a user cuts the sheet of wrapping film  102 , for subsequent extraction of another sheet of wrapping film  102  by the user. 
       FIGS. 7A-7E  exemplarily illustrate different views of the lid  108  of the wrapping film dispenser  100  exemplarily illustrated in  FIGS. 1-2 . A front perspective view and a front orthographic view of the lid  108  of the wrapping film dispenser  100 , showing an outer surface  108   b  of the lid  108  are exemplarily illustrated in  FIG. 7A  and  FIG. 7B  respectively. A complementary groove  108   c  is defined on the outer surface  108   b  of the lid  108  for receiving the key member  107  exemplarily illustrated in  FIGS. 8A-8B , of the wrapping film dispenser  100 . The complementary groove  108   c  is configured to complement the shape of the key member  107  to accommodate the key member  107 . That is, the profile of the complementary groove  108   c  conforms to the profile of the key member  107 . In an embodiment, an opening  108   d  is defined in the complementary groove  108   c . The diameter of the opening  108   d  of the complementary groove  108   c  is larger than the diameter of the opening  107   a  of the key member  107 , which allows a user to hold an edge of the opening  107   a  of the key member  107  to disengage the key member  107  from the complementary groove  108   c  of the lid  108 . 
     A rear perspective view and a rear orthographic view of the lid  108  of the wrapping film dispenser  100  showing an inner surface  108   e  of the lid  108  are exemplarily illustrated in  FIG. 7C  and  FIG. 7D  respectively. As exemplarily illustrated in  FIG. 7C , the lid  108  has a recessed wall  108   f  that fits into the open opposing end  101   a  of the cylindrical container  101 . A top orthographic view of the lid  108  of the wrapping film dispenser  100  is exemplarily illustrated in  FIG. 7E . The lid  108  comprises connectors  108   a  and  108   g  positioned diametrically opposite to each other on the recessed wall  108   f  of the lid  108  as exemplarily illustrated in  FIGS. 7C-7D . The connectors  108   a  and  108   g  of the lid  108  engage with the notches  101   c  and  101   d  respectively defined, for example, on the opposing end  101   a  of the cylindrical container  101 , as exemplarily illustrated in  FIGS. 2-3  and  FIG. 5 , for locking the lid  108  to the opposing end  101   a  of the cylindrical container  101 , when the lid  108  is twisted against the opposing end  101   a  of the cylindrical container  101 . 
       FIG. 8A  and  FIG. 8B  exemplarily illustrate an isometric view and a front orthographic view of the key member  107  of the wrapping film dispenser  100  respectively. The key member  107  has an opening  107   a  for inserting a leading edge  102   b  of the wrapping film  102  as exemplarily illustrated in  FIG. 11 , for guiding the roll  102   a  of wrapping film  102  into the cavity  112  of the cylindrical container  101  as exemplarily illustrated in  FIG. 12 , and for guiding the sheet of wrapping film  102  out through the slot  114  of the cylindrical container  101  as exemplarily illustrated in  FIGS. 13-14 . In an embodiment, the key member  107  comprises a curvedly extending blade member  107   b  configured for insertion into the slot  114  of the cylindrical container  101  as exemplarily illustrated in  FIG. 12 . A user may insert the leading edge  102   b  of the wrapping film  102  into the opening  107   a  of the key member  107  as exemplarily illustrated in  FIG. 11 , and then insert the blade member  107   b  of the key member  107  into the slot  114  of the cylindrical container  101  as exemplarily illustrated in  FIG. 12 , to guide the insertion of the roll  102   a  of wrapping film  102  into the cavity  112  of the cylindrical container  101 . In an embodiment, the key member  107  is configured to fit into the complementary groove  108   a  defined on the lid  108  that covers the opposing end  101   a  of the cylindrical container  101  as disclosed in the detailed description of  FIGS. 7A-7E . 
       FIG. 9  exemplarily illustrates a method for dispensing a sheet of wrapping film  102 . A wrapping film dispenser  100  comprising a cylindrical container  101 , a gripping pad member  103 , a locking element  104 , a cutting frame  105  having a protruding element  106 , and a key member  107  as disclosed in the detailed description of  FIGS. 1-8B , is provided  901 . 
     A roll  102   a  of wrapping film  102  is inserted  902  into the cavity  112  of the cylindrical container  101  via a leading edge  102   b  of the wrapping film  102 . For example, the leading edge  102   b  of the wrapping film  102  is inserted into the opening  107   a  of the key member  107  as exemplarily illustrated in  FIG. 11 . The key member  107  with the leading edge  102   b  of the wrapping film  102  in the opening  107   a  of the key member  107  is then guided into the slot  114  as exemplarily illustrated in  FIG. 12 , for guiding the roll  102   a  of the wrapping film  102  into the cavity  112  of the cylindrical container  101 . A sheet of wrapping film  102  is extracted  903  by an extendable length through the slot  114  of the cylindrical container  101 . The extraction of the sheet of wrapping film  102  by the extendable length allows the user to obtain a sufficient amount of the wrapping film  102  for wrapping an item of any size. 
     The sheet of wrapping film  102  is pressed  904  by the locking element  104  against the gripping pad member  103  during the extraction of the sheet of wrapping film  102  through the slot  114 , for restricting movement and preventing roll back of the extracted sheet of wrapping film  102  as exemplarily illustrated in  FIG. 14 . The extracted sheet of wrapping film  102  is cut  905  by the protruding element  106  of the cutting frame  105 , when the cylindrical container  101  is twisted. The method disclosed herein allows a user to wrap an item, for example, a food item using the extracted sheet of wrapping film  102  of the extendable length prior to cutting of the extracted sheet of wrapping film  102 , thereby allowing use of a sufficient amount of the wrapping film  102  for wrapping the item. After cutting the extracted sheet of wrapping film  102 , the protruding element  106  that extends outwardly by a predetermined distance  106   a  from the upper outer surface  101   e  of the cylindrical container  101  retains a portion  102   c  of the sheet of wrapping film  102  of a predetermined length at the slot  114  as exemplarily illustrated in  FIG. 18 , for subsequent extraction of another sheet of wrapping film  102  by the user. 
       FIGS. 10-18  exemplarily illustrate a sequence of operations performed for dispensing a sheet of a wrapping film  102  using the wrapping film dispenser  100 . Consider an example where a user wishes to wrap an item  1501 , for example, a bowl containing a food item, exemplarily illustrated in  FIGS. 15-18 , using the wrapping film dispenser  100 . The user disengages the key member  107  from the complementary groove  108   a  defined in the lid  108  of the wrapping film dispenser  100  as exemplarily illustrated in  FIG. 10 .  FIG. 10  exemplarily illustrates a front isometric view of the wrapping film dispenser  100 , showing disengagement of the key member  107  from the lid  108  that covers an open opposing end  101   a  of the cylindrical container  101 . The user then inserts the leading edge  102   b  of the wrapping film  102  into the opening  107   a  of the key member  107  as exemplarily illustrated in  FIG. 11 .  FIG. 11  exemplarily illustrates a front isometric view, showing insertion of the leading edge  102   b  of the wrapping film  102  through the opening  107   a  of the key member  107  of the wrapping film dispenser  100 . The user then guides the key member  107  with the leading edge  102   b  of the wrapping film  102  into the slot  114  as exemplarily illustrated in  FIG. 12 , for guiding the roll  102   a  of the wrapping film  102  into the cavity  112  of the cylindrical container  101 .  FIG. 12  exemplarily illustrates a front isometric view, showing insertion of the roll  102   a  of wrapping film  102  into the cavity  112  of the cylindrical container  101  via the leading edge  102   b  of the wrapping film  102 . 
     The user then extracts several inches of the sheet of wrapping film  102  out through the slot  114  of the cylindrical container  101  as exemplarily illustrated in  FIG. 13 , by passing the sheet of wrapping film  102  between the gripping pad member  103  and the locking element  104 .  FIG. 13  exemplarily illustrates a front isometric view, showing the extraction of the sheet of wrapping film  102  through the slot  114  of the cylindrical container  101  of the wrapping film dispenser  100 . The user may then cover the opposing end  101   a  of the cylindrical container  101  with the lid  108 . The locking element  104  presses the extracted sheet of wrapping film  102  against the gripping pad member  103  for restricting movement and preventing roll back of the extracted sheet of wrapping film  102  as exemplarily illustrated in  FIG. 14 .  FIG. 14  exemplarily illustrates a side sectional view, showing pressing of the extracted sheet of wrapping film  102  by the locking element  104  against the gripping pad member  103 . The gripping pad member  103  and the locking element  104  tighten the wrapping film  102  to allow cutting of a sheet of wrapping film  102 . The restriction of the movement of the extracted sheet of wrapping film  102  and prevention of roll back of the extracted sheet of wrapping film  102  allows the user to extract a sufficient amount of the wrapping film  102  for wrapping the item  1501  as exemplarily illustrated in  FIG. 15 .  FIG. 15  exemplarily illustrates a front isometric view, showing wrapping of an item  1501  using a sheet of wrapping film  102  extracted through the slot  114  of the cylindrical container  101  of the wrapping film dispenser  100 . 
     The user wraps the item  1501  with the extracted amount of the wrapping film  102  needed and uses his/her fingers to press the locking element  104  against the gripping pad member  103  to stretch and tighten the wrapping film  102 . The user then twists the cylindrical container  101  to cut the extracted sheet of wrapping film  102  using the protruding element  106  of the cutting frame  105  as exemplarily illustrated in  FIGS. 16-17 , and pulls the cylindrical container  101  back with a single hand to tear the extracted sheet of wrapping film  102 .  FIG. 16  and  FIG. 17  exemplarily illustrate a front isometric view and a side orthographic view, showing cutting of the extracted sheet of wrapping film  102  by the protruding element  106  of the cutting frame  105  mounted on the cylindrical container  101  of the wrapping film dispenser  100 . After cutting the extracted sheet of wrapping film  102 , a portion  102   c  of the sheet of wrapping film  102  of a predetermined length is retained at the slot  114  as exemplarily illustrated in a front isometric view in  FIG. 18 , for subsequent extraction of another sheet of wrapping film  102  by the user. 
     The foregoing examples have been provided merely for the purpose of explanation and are in no way to be construed as limiting of the present invention disclosed herein. While the invention has been described with reference to various embodiments, it is understood that the words, which have been used herein, are words of description and illustration, rather than words of limitation. Further, although the invention has been described herein with reference to particular means, materials, and embodiments, the invention is not intended to be limited to the particulars disclosed herein; rather, the invention extends to all functionally equivalent structures, methods and uses, such as are within the scope of the appended claims. Those skilled in the art, having the benefit of the teachings of this specification, may affect numerous modifications thereto and changes may be made without departing from the scope and spirit of the invention in its aspects.