Portable and disposable toilet for temporary use
A portable and disposable toilets for temporary use. The toilet has an interlocking foundation formed by a pair of front and rear walls interlocking a pair of sidewalls, and a top support interlocking the foundation defining a sitting area. The toilet may also have a liner with a collection bag attached thereto. The bag has its opening facing up when the liner is used to line the top support for each use. The liner can be adhesively folded closed after each use, thus also sealing the bag to prevent leakage and contamination. The liner may have a pair of loops at both ends, which serves both as a lock onto the top support and as a handle when the liner is folded after each use.
The present application claims priority based on Provisional Application filed Dec. 6, 2004, entitled “FOLDABLE AND DISPOSABLE TOILET,” Ser. No. 60/633,960, by inventors hereof. The entire disclosure of the provisional application is incorporated as if fully set forth herein.
FIELD OF THE INVENTIONThe present invention relates to portable toilets and more particularly relate to easily packable, portable and disposable toilets that are made of environmentally-friendly and bio-degradable materials and for temporary use.
ART BACKGROUNDMobile toilets are quite useful in situations where there are none or not enough permanent toilets for use, such as outdoor concerts, construction sites or festivals. However, in settings away from civilization, such as wilderness exploration, camping, military maneuvers and disaster relief, there are not even mobile toilets around for use. In the case of disaster relief operations, lack of proper toilet facility has contributed to the spread of diseases, exacerbating an already dire crisis. To provide for such extraordinary needs, another form of mobile and portable toilets has been developed. These toilets are generally designed for the users to carry around, or transport them, until usage.
Some prior devices have been in use, although they don't necessarily meet the aforementioned ideal requirements. One such device is disclosed in a U.S. Pat. No. 6,047,414 issued to Bailey on Apr. 11, 2000, entitled COMBINATION PACKABLE TOILET AND STOOL. The Bailey device is a unitary structure, made of die-cut paperboards. The Bailey device does not utilize a liner, which would have made it more sanitary for use, as well as for disposal. The construction, using double-layer of cardboard, is more costly and complicated than necessary, and the unitary structure is somewhat unstable when lateral forces are exerted upon it.
Therefore, there has been a need for portable and disposable toilets that can be simply manufactured and quickly transported to the affected areas for deployment. Such portable and disposable toilets should satisfy both sanitation requirements as well as logistic requirements. The portable and disposable toilets should be too heavy to transport, nor too light or flimsy to use. On the other hand, the toilets should not be too sturdy, such that they are susceptible to repeated or extended use, which can be a health hazard. Also, they should be easily packable for storage and transport, until they are ready for use, which requires simply assembly. Finally, they should provide a sanitary, as well as environmentally friendly, function.
SUMMARY OF THE PRESENT INVENTIONThe portable and disposable toilet in accordance to the present invention is preferably constructed from corrugated cardboard materials, or from other light-weight, materials. The portable and disposable toilets of the present invention are simple and yet strong enough to support a person weighing at least 200 pounds. The toilets can be easily shipped flat, with some pre-assembly, and can remain sanitary and disposable without harming the environment. Additionally, the materials and structure of the toilets can withstand inclement outdoor conditions. All materials used for the toilets are preferably recyclable and bio-degradable, although the portable and disposable toilets can be readily constructed using other light-weight and low-cost materials.
The portable and disposable toilets in accordance with the present invention comprises an interlocking foundation, a top support, and a liner. The liner may also include a bag, which has its opening facing up when the liner is used to line the top support for each use. The liner can be adhesively folded closed after each use, thus also sealing the bag to prevent leakage and contamination. The liner may have a pair of loops at both ends, which serves both as a lock onto the top support and as a handle when the liner is folded after each use.
BRIEF DESCRIPTION OF THE DRAWINGSAdditional objects, features and advantages of the portable and disposable toilet in accordance with the present invention will become apparent in the following description, wherein:
FIGS. 1 (a)-(d) illustrates one exemplary embodiment of the portable and disposable toilet is shown to illustrate its basic components
FIGS. 5 (a)-(d) illustrate the exemplary cardboard blank with cut-out and fold lines in place.
FIGS. 8 (a) and (b) show the formation of the foundation 12a, 14a, 16, 18, and the top support 110a. FIGS. 8 (c)-(j) show the assembly of the liner 100 to the top support 110a, much in the same way as in the other embodiment.
FIGS. 9 (a)-(d) show the exemplary liner 100 in more detail, which has the same middle section 104 as in the aforementioned embodiment.
FIGS. 10 (a)-(d) illustrate the exemplary cardboard blank with dimensions.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTSA portable and disposable toilet for temporary use is disclosed. In the following detailed description, numerous specific details are set forth to provide a full understanding of the present invention. It will be obvious, however, to one ordinarily skilled in the art that the present invention may be practiced without some of these specific details. In other instances, well-known structures and techniques have not been shown in detail so as to avoid unnecessarily obscuring the present invention.
Reference is first turned to FIGS. 1 (a)-(d), where one embodiment of the portable and disposable toilet is shown to illustrate its basic components.
FIGS. 1 (c) and (d) illustrate the foundation, which is formed by two pairs of interlocking vertical single-layer corrugated cardboard side panels 12, 14, 16, 18. The foundation is formed by interlocking the cardboard panels 12, 14, 16, 18 to each other, which can still be easily folded flat for shipping. When the side panels 12, 14, 16, 18 are interlocked using the pre-cut slots 120, 122, 128, 129 (
On the panels 12, 14, the slots 120, 122, 128, 129 are cut vertically from the bottom edge upward. On the panels 16, 18, the slots 133, 134, 135, 136 are cut vertically from the top edge downward. The slots are preferably cut to middle of the height of the panels, such that when the panels 12, 14 interlock with panels 16, 18, they maintain a uniform height, same as the height of the panels 12, 14, 16, 18. Additionally, as illustrated in
Also, on the panels 12, 14, slots 33, 34 are horizontally cut so that they can receive the tabs 31, 32 (
FIGS. 3 (a)-(j) illustrate exemplary assembly steps of the portable and disposable toilet in accordance with the present invention. In
In
In FIGS. 3 (c) and (d), the pre-cut tabs 36, 37 are preferably formed on the top support 110 at the front and back. The tabs 36, 37 can be inserted through the handles 38, 39, respectively, on the liner 100 and then folded down, thus stabilizing the liner 100 onto the top support 110. The pre-cut tabs 36, 37 may be avoided in some embodiment to simplify the design and manufacturing.
In FIGS. 3 (e) and (f), the liner 100 has perforation in the middle, so that three sides of a middle section 104 can be separated and pulled up from the liner's edge prior to use. Now the bag 102 underneath the liner is exposed, allowing human waste to be deposited. The folded middle section 104 need not be removed since it can be used as a lid to close the liner 100 after use, as shown in
FIGS. 4 (a)-(d) illustrate the liner 100 construction in more detail. It should be noted that the liner may be avoided in a different embodiment.
FIGS. 5 (a)-(d) illustrate the exemplary cardboard blank with cut-out and fold lines in place. It should be noted that the dimensions are for illustrations purposes and those skilled in the art can readily create their own specification based on the teaching of the present invention. Also, other light-weight material, instead of cardboard, may be used to produce the blank. The invention is not limited to just cardboard material.
As in the other embodiment, FIGS. 8 (a) and (b) show the formation of the foundation 12a, 14a, 16, 18, and the top support 110a, which has an adhesive tab 31a, 32a for securing itself to the foundation's inside side panels 12a, 14a.
FIGS. 8 (c)-(j) show the assembly of the liner 100 to the top support 110a, much in the same way as in the other embodiment.
FIGS. 10 (a)-(d) illustrate the exemplary cardboard blank with dimensions. As can be appreciated, those skilled in the art can readily create their own specification based on the teaching of the present invention.
As previously mentioned, while the portable toilet in accordance with the present invention is shown in cardboard construction, it would be apparent to those skilled in the art that the portable toilet can readily manufactured using other materials, bio-degradable or not.
Claims
1. A portable and disposable toilet for temporary use, comprising:
- a foundation, said foundation having a pair of front and rear panels (16, 18) interlocking with a pair of side panels (12, 14), said front panel engaging to front end of said pair of side panels and said rear panel engaging to rear end of said pair of side panels, each of said side panels having a corner at front end and a slot (124, 126) formed at the rear end, each of said pair of side panels having a receptacle (33, 34) at its mid section;
- a top support (110) on top of said foundation, said top support having front, middle and rear sections, said front section being folded down at a predetermined fold line from said middle section, said front section having a pair of slots (112, 114) interlocking said side panels (12, 14), said rear section being folded down at a predetermined fold line from said middle section, said rear section having a pair slots interlocking said side panels, said middle section having a pair of fold-down tabs (31, 32), forming an opening of a predetermined dimension when said pair of tabs are folded downward to engage said receptacles (33, 34) on said side panels, said top supporting defining a sitting area around the edges of said opening;
- a liner (100) having a collection bag (102) attached thereto, said liner being shaped to substantially cover said sitting area around the edges of said opening of said top support (110) when said liner is placed on top of said top support with said collection bag being placed through said opening of said top support, said liner having a foldable middle section (104) adapted to fold up to expose the top opening of said collection bag, said liner having a covered adhesive strip which can be uncovered to seal off said liner and its collection bag after use.
2. The portable and disposable toilet of claim 1, wherein said collection bag is made of moisture absorbing material and said foundation and top support are made of single-layer corrugated board.
3. The portable and disposable toilet of claim 1, wherein said liner with said collection bag further comprises chemical re-agent deposited therein.
4. The portable and disposable toilet of claim 1,
- wherein said front section of said top support (110) has a pre-cut protruding tab (36), which is formed when said front section is folded, and said rear section of said top support has a pre-cut protruding tab (37), which is formed when said rear section is folded, and
- wherein said liner (100) has a handle (38, 39) at each of front and rear ends adapted to interlock each of said protruding tabs (36, 37) after said liner is placed on top of said top support.
5. The portable and disposable toilet of claim 1, wherein said fold-down tabs (31, 32) further have attachment means for affixing themselves to said side panels (33, 34).
6. The portable and disposable toilet of claim 3, wherein said foundation is formed by:
- a front panel (18), said front panel having a left (136) slot and a right slot (135) positioned at a predetermined width from each other, said left and right slots being formed from an upper edge of said front panel to a mid-height of said front panel;
- a rear panel (16), said rear panel having a left (134) slot and a right slot (133) positioned at said predetermined width from each other, said left and right slots being formed from an upper edge of said rear panel to said mid-height of said rear panel;
- a left side panel (12), said left side panel having a front slot (122) and a rear slot (129) positioned at a predetermined width from each other, said front and rear slots being formed from a lower edge of said left side panel to a mid-height of said left side panel;
- a right side panel (14), said right side panel having a front slot (120) and a rear slot (128) positioned at said predetermined width from each other, said front and rear slots being formed from a lower edge of said right side panel to said mid-height of said right side panel.
7. The portable and disposable toilet of claim 4, wherein said foundation is formed by:
- a front panel (18), said front panel having a left (136) slot and a right slot (135) positioned at a predetermined width from each other, said left and right slots being formed from an upper edge of said front panel to a mid-height of said front panel;
- a rear panel (16), said rear panel having a left (134) slot and a right slot (133) positioned at said predetermined width from each other, said left and right slots being formed from an upper edge of said rear panel to said mid-height of said rear panel;
- a left side panel (12), said left side panel having a front slot (122) and a rear slot (129) positioned at a predetermined width from each other, said front and rear slots being formed from a lower edge of said left side panel to a mid-height of said left side panel;
- a right side panel (14), said right side panel having a front slot (120) and a rear slot (128) positioned at said predetermined width from each other, said front and rear slots being formed from a lower edge of said right side panel to said mid-height of said right side panel.
8. A light-weight blank (20), adapted to forming a portable and disposable toilet for temporary use, said blank having cut-out lines and fold lines, defining:
- a pair of front and rear panels (16, 18), each of said front and rear panels having a pair of vertical slots (133, 134, 135, 136) at predetermined locations on said front and rear panels, each of said vertical slots being formed from said panel's upper edge downward to said panel's mid-height;
- a pair of side panels (33, 34), each of said side panels having a pair of vertical slots (120, 122, 128, 129) formed at predetermined locations on said side panels, each of said vertical slots being formed from said panel's lower edge upward to said panel's mid-height, each of said slots of said side panels being adapted to interlock with a corresponding slot on said front and rear panels, forming a four-sided foundation, each of said side panels also having a slot (124, 126) toward the rear, said slot being formed from said panel's upper edge downward to a height above said panel's mid-height;
- a top support (110) adapted to be placed on top of said foundation, said top support having a front fold line and a rear fold line, defining front, middle and rear sections, said front section having a pair of slots (112, 114) adapted to interlock upper corners of said side panels when said front section is folded at said front fold line, said rear section having a pair slots (116, 118) adapted to interlock said slots (124, 126) on said side panels when said rear section is folded at said rear fold line, said pair of slots (116, 118) being formed, said middle section having a pair of fold-down tabs (31, 32) adapted to form an opening of a predetermined dimension when said pair of tabs are folded down to engage said side panels (14, 16), said top supporting defining a sitting area around the edges of said opening.
9. The material blank of claim 8, wherein each of said side panels (12, 14) further has a horizontal opening (33, 34) formed near its upper edge, which is adapted to engage said fold-down tabs (31, 32) when the tabs are folded down.
10. The material blank of claim 9, said top support further has a pair of tabs (36, 37) formed at its rear and front section, adjoining said rear and front fold lines, respectively, each of said tabs being formed when said front and rear sections are folded down to engage said foundation.
11. A material blank of claim 10, further comprising:
- a liner (100), adapted to engage said top support, said liner having a foldable section (104) at its center and a sitting area surrounding said opening, said liner having a front (38) and rear (39) handle, adapted to engage said tabs (37, 36) when said liner is applied to said top support, said foldable section being adapted to expose an opening at its center when it is folded up.
12. A disposable liner for a portable and disposable toilet, comprising:
- a flat piece of liner with wax coating, said liner having a center opening section, defined by predetermined fold lines and tear lines;
- a collection bag with its opening attached to the rim around the center opening section, said bag having chemical re-agents deposited therein;
- an adhesive strip around the top side of the liner;
- a pair of handles formed on two ends of the liner, adapted to be seal off said liner using said adhesive strip after use.
13. The liner of claim 12, said collection bag (102) having its opening aligned to said center opening of said liner.
14. The liner of claim 12, wherein said collection bag is made of moisture absorbing materials.
15. The liner of claim 14, said collection bag further has a chemical re-agent deposited therein.
16. The portable and disposable toilet of claim 6, wherein:
- said left side panel (12) further has a slot (124) near its rear end, said slot being formed from an upper edge of said left side panel to a predetermined distance below said upper edge;
- said right side panel (14) further has a slot (126) near its rear end, said slot being formed from an upper edge of said right side panel to said predetermined distance below said upper edge.
17. The portable and disposable toilet of claim 7, wherein:
- said left side panel (12) further has a slot (124) near its rear end, said slot being formed from an upper edge of said left side panel to a predetermined distance below said upper edge;
- said right side panel (14) further has a slot (126) near its rear end, said slot being formed from an upper edge of said right side panel to said predetermined distance below said upper edge.
18. The portable and disposable toilet of claim 2, wherein said liner with said collection bag further comprises chemical re-agent deposited therein.
19. The portable and disposable toilet of claim 18,
- wherein said front section of said top support (110) has a pre-cut protruding tab (36), which is formed when said front section is folded, and said rear section of said top support has a pre-cut protruding tab (37), which is formed when said rear section is folded, and
- wherein said liner (100) has a handle (38, 39) at each of front and rear ends adapted to interlock each of said protruding tabs (36, 37) after said liner is placed on top of said top support.
20. The portable and disposable toilet of claim 19, wherein said foundation is formed by:
- a front panel (18), said front panel having a left (136) slot and a right slot (135) positioned at a predetermined width from each other, said left and right slots being formed from an upper edge of said front panel to a mid-height of said front panel;
- a rear panel (16), said rear panel having a left (134) slot and a right slot (133) positioned at said predetermined width from each other, said left and right slots being formed from an upper edge of said rear panel to said mid-height of said rear panel;
- a left side panel (12), said left side panel having a front slot (122) and a rear slot (129) positioned at a predetermined width from each other, said front and rear slots being formed from a lower edge of said left side panel to a mid-height of said left side panel;
- a right side panel (14), said right side panel having a front slot (120) and a rear slot (128) positioned at said predetermined width from each other, said front and rear slots being formed from a lower edge of said right side panel to said mid-height of said right side panel.
Type: Application
Filed: Dec 6, 2005
Publication Date: Jun 8, 2006
Inventor: William Hsu (Diamond Bar, CA)
Application Number: 11/296,543
International Classification: A47K 11/06 (20060101);