US20110248037A1 - Thermally insulated collapsible cup for hot or cold beverages - Google Patents
Thermally insulated collapsible cup for hot or cold beverages Download PDFInfo
- Publication number
- US20110248037A1 US20110248037A1 US12/798,654 US79865410A US2011248037A1 US 20110248037 A1 US20110248037 A1 US 20110248037A1 US 79865410 A US79865410 A US 79865410A US 2011248037 A1 US2011248037 A1 US 2011248037A1
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- United States
- Prior art keywords
- collapsible cup
- segment
- outer shell
- cup
- collapsible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
- B65D81/3865—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation drinking cups or like containers
- B65D81/3869—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation drinking cups or like containers formed with double walls, i.e. hollow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
- B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
- B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
- B65D21/0217—Containers with a closure presenting stacking elements
- B65D21/0219—Containers with a closure presenting stacking elements the closure presenting projecting peripheral elements receiving or surrounding the bottom or peripheral elements projecting from the bottom of a superimposed container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
- B65D21/08—Containers of variable capacity
- B65D21/086—Collapsible or telescopic containers
Definitions
- the present invention relates to containers and particularly to a an insulated drinking container for hot or cold drinks that includes a rigid outer shell and a flexible inner liner that enables the container to be folded or collapsed when not in use to enable more efficient storage.
- Hot beverages such as coffee or tea
- Hot beverages are consumed by people on a daily basis.
- Many people frequently visit convenience stores or specialty coffee shops in order to obtain their favorite hot beverage.
- these stores provide disposable cups for the hot beverages, many of them sell their hot beverages at a lower price if the customer provides their own container.
- many regular coffee drinkers carry their own hot beverage containers into the store in order to obtain their drink at a lower price.
- After being filled, many hot drink containers are carried into the workplace or the home where they are then stored and used in those locations. Over a period of time, a large number of hot drink containers tend to accumulate in the home or the office.
- a thermally insulated collapsible cup for hot or cold beverages.
- the thermally insulated collapsible cup includes a flexible inner liner and a multi-segmented outer shell including a top segment, a base segment, and one or more intermediate segments. Each segment of the outer shell includes an insulation layer adhered thereto. An integral rubber sleeve extends around the periphery of each intermediate segment.
- the flexible inner liner extends from the top to the bottom of the collapsible cup and is secured and sealed at the bottom of the base segment and at the rim of the top segment.
- the flexible liner is a liquid-tight inner liner that holds liquid therein in both the collapsed and expanded configurations.
- the insulation layers in each segment thermally insulate any liquid within the liner, maintaining the temperature of hot liquids or cold liquids within the inner liner and mitigating heat transfer to the outer shell thereby protecting the hands of a user while operating the cup.
- thermally insulated collapsible cup of the present invention Several advantages are achieved with the thermally insulated collapsible cup of the present invention, including:
- FIG. 1 is a side view of a preferred embodiment of a thermally insulated collapsible cup in its expanded configuration according to the present invention.
- FIG. 2 is a side view of the collapsible cup of FIG. 1 after it has been folded or collapsed into a compact size for storage.
- FIG. 3 is a top view of the collapsible cup of FIG. 1 .
- FIG. 4 is a sectional view of the collapsible cup taken along line 4 - 4 of FIG. 3 .
- FIG. 5 is a detailed view of the left hand side of the top segment of the collapsible cup of FIG. 4 .
- FIG. 6 is a detailed view of the left hand side of the bottom segment of the collapsible cup of FIG. 4 .
- FIG. 7 is a top view of the collapsible cup in the collapsed configuration of FIG. 2 .
- FIG. 8 is a sectional view of the collapsible cup taken along line 8 - 8 of FIG. 7 .
- FIG. 9 is a top view of the collapsible cup including a lid secured to the top of the cup.
- FIG. 10 is a sectional view of the collapsible cup taken along line 10 - 10 of FIG. 9 .
- FIG. 11 is a side view of two collapsible cups according to the present invention each in the collapsed configuration and stacked upon one another for storage.
- FIG. 12 is a sectional view of the bottom portion of a collapsible cup according to the present invention depicting an alternative arrangement for anchoring the inner liner to the base outer shell segment.
- collapsible cup 22 base outer shell segment 24 top outer shell segment 26 intermediate outer shell segment 28 tubular sleeve 30 interior volume 32 rim of top segment 34 inner side of outer shell segment 36 outer side of outer shell segment 38 top of rigid outer shell segment 40 bottom of rigid outer shell segment 42 tubular insulating layer 44 flexible inner liner 46 base portion of inner liner 48 screw threads at bottom of outer shell segment 50 screw threads at top of outer shell segment 52 inturned wall portion 54 outer periphery 56 peripheral flange of top outer shell segment 58 top portion of liner 60 peripheral groove 61 throat of liner 62 screw threads in throat 63 inner periphery of base segment 64 peripheral flange on base segment 66 peripheral groove in base portion of liner 68 inner periphery of sleeve 70 screw threads on sleeve 72 inward extending lower leg of sleeve 74 lid 76 hinge 78 flip up cover 80 outer periphery of tubular sleeve 82 indent in sleeve 84
- the present invention is a thermally insulated collapsible cup 20 .
- the collapsible cup 20 depicted in its expanded configuration in FIG. 1 , includes a plurality of rigid interlocking tubular outer shell segments including a base segment 22 , a top segment 24 , and one or more intermediate segments 26 .
- the collapsible cup 20 includes a tubular sleeve 28 secured around the lower outer periphery of each intermediate segment 26 .
- the collapsible cup 20 can be folded or collapsed into a collapsed configuration wherein the top segment 24 is collapsed around the outer peripheries of the intermediate segments 26 and base segment 22 in which collapsed configuration the tubular sleeves 28 are in contact with one another.
- the collapsible cup 20 is liquid-tight in both the expanded and collapsed configurations and is thermally insulated thus maintaining the temperature of liquids within the cup.
- the interior volume 30 of the insulated collapsible cup 20 will keep hot liquids hot or cold liquids cold for a substantial amount of time.
- the top outer shell segment 24 includes a rim 32 and each interlocking outer shell segment 22 , 24 , and 26 includes an inner side 34 , an outer side 36 , a top 38 and a bottom 40 .
- a tubular insulating layer 42 is provided on the inner side 34 of each of the outer shell segments 22 , 24 , and 26 .
- the collapsible cup 20 further includes a flexible inner liner 44 that extends from the rim 32 to the bottom 40 of the base segment 22 .
- the entire flexible inner liner 44 including a thick base portion 46 is molded in one piece of food grade silicone rubber, which is approved by the FDA for direct food contact.
- the inner liner 44 forms a continuous liquid-tight liner around the entire inner periphery of the collapsible cup 20 .
- the top segment 24 and intermediate segments 26 each include screw threads 48 on the outer sides 36 at the bottom 40 of the outer shell segment and the base segment 22 and intermediate segments 26 each include complementary screw threads 50 on the outer sides 36 at the top 38 of the adjacent outer shell segment.
- screw threads 48 at the bottom 40 of a rigid outer shell segment 24 and 26 can be threaded onto complementary screw threads 50 of the adjacent segment 22 and 26 there below in order to lock the respective rigid segments with respect to one another and thereby lock the collapsible cup 20 into the expanded configuration.
- the top outer shell segment 24 includes an inturned wall portion 52 adjacent the rim 32 .
- the inturned wall portion 52 includes an outer periphery 54 and a peripheral flange 56 extending outward from the outer periphery 54 of the inturned wall portion 52 .
- the one-piece molded flexible inner liner 44 includes a top portion 58 with a peripheral groove 60 therein extending around its outer periphery.
- the peripheral flange 56 of the top outer shell segment 24 extends into the peripheral groove 60 of the top portion 58 of the inner liner 44 thereby securing the top portion 58 of the inner liner 44 to the top outer shell segment 24 .
- the inner liner 44 being constructed of soft silicone rubber, seals around the rim 32 of the top outer shell segment 24 .
- the inner liner 44 constructed of food grade silicone rubber, has a Shore A hardness rating of 0.
- the top portion 58 of the inner liner 44 wraps around the entire top of the top outer shell segment 24 including the rim 32 .
- the top portion 58 of the liner 44 includes a throat 61 and may include screw threads 62 in the throat 61 .
- the bottom 40 of the base outer shell segment 22 includes an inner periphery 63 and a peripheral flange 64 extending inward from the inner periphery 63 .
- the base portion 46 of the flexible inner liner 44 further includes a peripheral groove 66 therein.
- the peripheral flange 64 of the base outer shell segment 22 extends into the peripheral groove 66 of the inner liner base portion 46 thereby securing the liner base portion 46 to the base outer shell segment 22 .
- the base portion 46 of the liner 44 is an integral portion of the one-piece molded liner 44 , the collapsible cup 20 will be liquid-tight at the bottom of the cup.
- each tubular sleeve 28 includes an inner periphery 68 and screw threads 70 on its inner periphery 68 .
- the screw threads 70 of the tubular sleeve 28 engage the screw threads 50 at the top 38 of each intermediate outer shell segment 26 thereby locking the tubular sleeves 28 to the intermediate outer shell segments 26 .
- the tubular sleeves 28 further include an inward extending lower leg 72 that is in contact with the outer side 36 of the outer shell segments 22 and 26 .
- the lower legs 72 of each sleeve 28 provides friction against the respective outer shell segment 22 and 26 that it is in contact with and thus controls the rate of expansion of the collapsible cup when expanded from the collapsed configuration, as shown in FIG. 8 , to the expanded configuration as shown in FIGS. 1 and 4 .
- the integral tubular sleeves 28 are constructed of silicone rubber.
- the collapsible cup 20 may further include a lid 74 threaded into the screw threads 62 in the throat 61 of the flexible inner liner 44 .
- the lid 74 in FIGS. 9-10 includes a hinge 76 and a flip up cover 78 pivotally attached and rotatable within the hinge 76 to provide access to the chink stored within the collapsible cup 20 .
- a lid 74 is shown herein, other conventional lids are within the scope of the invention for use with the collapsible cup 20 including lids with sliding covers, pop up nozzles, holes with tubes extending there through, and snap on lids rather than lids with screw threads.
- the tubular outer shell segments 22 , 24 , and 26 of a collapsible cup 20 according to the present invention are of steadily decreasing diameter from the top outer shell segment 24 to the base outer shell segment 22 .
- screw thread 48 on the bottom of the segment will disengage from screw thread 50 on the top of the next lower segment and the collapsible cup 20 will fold to the collapsed configuration as shown in FIG. 8 .
- the inward extending lower legs 72 of the tubular sleeves 28 will exert friction on the base segment 22 and the sleeve 28 it is in contact with and function to hold the cup in the collapsed configuration.
- the cup in the collapsed configuration includes the base outer shell segment 22 nested within the intermediate outer shell segments 26 and the intermediate segments 26 within the top outer shell segment 24 .
- Flexible inner liner 44 being molded in one-piece of rubber and secured tightly at the top rim 32 and to the peripheral flange 64 on the base outer shell segment 22 , is liquid-tight in both the expanded and collapsed configuration.
- the entire inner volume 30 of the collapsible cup 20 is bound by the inner liner 44 .
- the integral sleeves 28 of the collapsible cup 20 include an outer periphery 80 and an indent 82 in the outer periphery 80 .
- the indent 82 functions to hold the collapsible cup is in the collapsed configuration.
- the inward extending lower legs 72 of the upper sleeves 28 engage the indents 82 of the lower adjacent sleeve and stop the collapse of the outer shell segments.
- each of the tubular insulating layers 42 are preferably secured to the outer shell segments 22 , 24 , and 26 with adhesive.
- the tubular outer shell segments 22 , 24 , and 26 are preferably constructed of metal or plastic.
- the tubular insulating layers 42 are preferably constructed of polyurethane.
- a significant advantage realized with the collapsible cup 20 of the present invention is that two or more cups can be stacked in order to save shelf space.
- two collapsible cups 20 according to the present invention are depicted in the collapsed configuration and stacked one upon another for storage.
- the base segment 22 includes a closed bottom 84 and an integral pin 86 extending from the bottom.
- the flexible inner liner 44 is molded in one piece with an opening in the base portion 46 of the inner liner 44 to accommodate the pin 86 .
- the flexible inner liner 44 is secured to the base segment 22 by placing base portion 46 over pin 86 . With pin 86 secured within the base portion 46 of the liner 44 , the flexible inner liner 44 of the collapsible cup can rotate about pin 86 and also remain liquid-tight.
Abstract
A thermally insulated collapsible cup for hot or cold beverages. The collapsible cup includes a flexible inner liner and a multi-segmented outer shell including a top segment, a base segment, and one or more intermediate segments. Each segment of the outer shell includes an insulation layer adhered thereto. An integral rubber sleeve extends around the periphery of each intermediate segment. The flexible inner liner extends from the top to the bottom of the collapsible cup and is secured and sealed at the bottom of the base segment and at the rim of the top segment. In an expanded configuration, internal screw threads at the bottom of the top and intermediate segments engage external screw threads on the adjacent segment there below and thereby maintain the cup in an expanded configuration. The screw threads can be unscrewed in order to convert the cup to a collapsed configuration.
Description
- The present invention relates to containers and particularly to a an insulated drinking container for hot or cold drinks that includes a rigid outer shell and a flexible inner liner that enables the container to be folded or collapsed when not in use to enable more efficient storage.
- Hot beverages, such as coffee or tea, are consumed by people on a daily basis. Many people frequently visit convenience stores or specialty coffee shops in order to obtain their favorite hot beverage. Although these stores provide disposable cups for the hot beverages, many of them sell their hot beverages at a lower price if the customer provides their own container. Thus many regular coffee drinkers carry their own hot beverage containers into the store in order to obtain their drink at a lower price. After being filled, many hot drink containers are carried into the workplace or the home where they are then stored and used in those locations. Over a period of time, a large number of hot drink containers tend to accumulate in the home or the office.
- One problem that arises with the accumulation of a large number of hot drink containers is the large amount of space that is required to store the containers. In current times, many of these hot drink containers are quite a large size and require a significant amount of shelf space during storage.
- It would therefore be beneficial to reduce the amount of shelf space taken up by hot or cold beverage containers. Although collapsible containers have been proposed in the prior art, many are for dry food storage items such as powders and others do not include the ability to thermally insulate the materials held within.
- Thus, what is needed is a drink container that will keep hot beverages hot and cold beverages cold while in use and that also can be reduced in size to conserve shelf space when not in use.
- According to the present invention, there is provided a thermally insulated collapsible cup for hot or cold beverages. The thermally insulated collapsible cup includes a flexible inner liner and a multi-segmented outer shell including a top segment, a base segment, and one or more intermediate segments. Each segment of the outer shell includes an insulation layer adhered thereto. An integral rubber sleeve extends around the periphery of each intermediate segment. The flexible inner liner extends from the top to the bottom of the collapsible cup and is secured and sealed at the bottom of the base segment and at the rim of the top segment. In an expanded configuration, internal screw threads at the bottom of the top and intermediate segments engage external screw threads on the adjacent segment there below and thereby hold the cup in an expanded configuration. The screw threads can be unscrewed in order to place the cup in a collapsed configuration. The flexible liner is a liquid-tight inner liner that holds liquid therein in both the collapsed and expanded configurations. The insulation layers in each segment thermally insulate any liquid within the liner, maintaining the temperature of hot liquids or cold liquids within the inner liner and mitigating heat transfer to the outer shell thereby protecting the hands of a user while operating the cup.
- Several advantages are achieved with the thermally insulated collapsible cup of the present invention, including:
-
- (1) The collapsible cup of the present invention is thermally insulated, thereby maintaining hot liquids or cold liquids at the desired temperature.
- (2) The collapsible cup of the present invention can be folded into a significantly smaller size for storage thereby greatly reducing the amount of required storage space.
- (3) The collapsible cup of the present invention maintains its shape when expanded to its unfolded state.
- (4) As the liner is molded in one-piece, the collapsible cup of the present invention is capable of supporting liquids in both the collapsed and expanded configurations.
- (5) The collapsible cup includes rubber sleeves for providing proper friction for the hand and for controlling the speed at which the cup converts from the collapsed to the expanded configuration.
- (6) A screw thread locking mechanism prevents unintentional collapsing of the cup.
- These and other objects and advantages of the present invention will be better understood by reading the following description along with reference to the drawings.
-
FIG. 1 is a side view of a preferred embodiment of a thermally insulated collapsible cup in its expanded configuration according to the present invention. -
FIG. 2 is a side view of the collapsible cup ofFIG. 1 after it has been folded or collapsed into a compact size for storage. -
FIG. 3 is a top view of the collapsible cup ofFIG. 1 . -
FIG. 4 is a sectional view of the collapsible cup taken along line 4-4 ofFIG. 3 . -
FIG. 5 is a detailed view of the left hand side of the top segment of the collapsible cup ofFIG. 4 . -
FIG. 6 is a detailed view of the left hand side of the bottom segment of the collapsible cup ofFIG. 4 . -
FIG. 7 is a top view of the collapsible cup in the collapsed configuration ofFIG. 2 . -
FIG. 8 is a sectional view of the collapsible cup taken along line 8-8 ofFIG. 7 . -
FIG. 9 is a top view of the collapsible cup including a lid secured to the top of the cup. -
FIG. 10 is a sectional view of the collapsible cup taken along line 10-10 ofFIG. 9 . -
FIG. 11 is a side view of two collapsible cups according to the present invention each in the collapsed configuration and stacked upon one another for storage. -
FIG. 12 is a sectional view of the bottom portion of a collapsible cup according to the present invention depicting an alternative arrangement for anchoring the inner liner to the base outer shell segment. - The following is a listing of part numbers used in the drawings along with a brief description:
-
Part Number Description 20 collapsible cup 22 base outer shell segment 24 top outer shell segment 26 intermediate outer shell segment 28 tubular sleeve 30 interior volume 32 rim of top segment 34 inner side of outer shell segment 36 outer side of outer shell segment 38 top of rigid outer shell segment 40 bottom of rigid outer shell segment 42 tubular insulating layer 44 flexible inner liner 46 base portion of inner liner 48 screw threads at bottom of outer shell segment 50 screw threads at top of outer shell segment 52 inturned wall portion 54 outer periphery 56 peripheral flange of top outer shell segment 58 top portion of liner 60 peripheral groove 61 throat of liner 62 screw threads in throat 63 inner periphery of base segment 64 peripheral flange on base segment 66 peripheral groove in base portion of liner 68 inner periphery of sleeve 70 screw threads on sleeve 72 inward extending lower leg of sleeve 74 lid 76 hinge 78 flip up cover 80 outer periphery of tubular sleeve 82 indent in sleeve 84 closed bottom of base segment 86 pin - With reference to a first and preferred embodiment in
FIG. 1 , the present invention is a thermally insulatedcollapsible cup 20. Thecollapsible cup 20, depicted in its expanded configuration inFIG. 1 , includes a plurality of rigid interlocking tubular outer shell segments including abase segment 22, atop segment 24, and one or moreintermediate segments 26. Thecollapsible cup 20 includes atubular sleeve 28 secured around the lower outer periphery of eachintermediate segment 26. - As shown in
FIG. 2 , thecollapsible cup 20 can be folded or collapsed into a collapsed configuration wherein thetop segment 24 is collapsed around the outer peripheries of theintermediate segments 26 andbase segment 22 in which collapsed configuration thetubular sleeves 28 are in contact with one another. Thecollapsible cup 20 is liquid-tight in both the expanded and collapsed configurations and is thermally insulated thus maintaining the temperature of liquids within the cup. Thus, with reference toFIG. 3 , theinterior volume 30 of the insulatedcollapsible cup 20 will keep hot liquids hot or cold liquids cold for a substantial amount of time. - Referring to the sectional view of the
collapsible cup 20 in the expanded configuration inFIG. 4 , the topouter shell segment 24 includes arim 32 and each interlockingouter shell segment inner side 34, anouter side 36, atop 38 and abottom 40. Atubular insulating layer 42 is provided on theinner side 34 of each of theouter shell segments collapsible cup 20 further includes a flexibleinner liner 44 that extends from therim 32 to thebottom 40 of thebase segment 22. The entire flexibleinner liner 44 including athick base portion 46 is molded in one piece of food grade silicone rubber, which is approved by the FDA for direct food contact. Thus theinner liner 44 forms a continuous liquid-tight liner around the entire inner periphery of thecollapsible cup 20. - With reference to
FIGS. 5 and 6 , thetop segment 24 andintermediate segments 26 each includescrew threads 48 on theouter sides 36 at thebottom 40 of the outer shell segment and thebase segment 22 andintermediate segments 26 each includecomplementary screw threads 50 on theouter sides 36 at thetop 38 of the adjacent outer shell segment. Thusscrew threads 48 at thebottom 40 of a rigidouter shell segment complementary screw threads 50 of theadjacent segment collapsible cup 20 into the expanded configuration. - With reference to
FIG. 5 , the topouter shell segment 24 includes an inturned wall portion 52 adjacent therim 32. The inturned wall portion 52 includes anouter periphery 54 and aperipheral flange 56 extending outward from theouter periphery 54 of the inturned wall portion 52. The one-piece molded flexibleinner liner 44 includes a top portion 58 with aperipheral groove 60 therein extending around its outer periphery. Theperipheral flange 56 of the topouter shell segment 24 extends into theperipheral groove 60 of the top portion 58 of theinner liner 44 thereby securing the top portion 58 of theinner liner 44 to the topouter shell segment 24. Theinner liner 44, being constructed of soft silicone rubber, seals around therim 32 of the topouter shell segment 24. Preferably, theinner liner 44, constructed of food grade silicone rubber, has a Shore A hardness rating of 0. As shown inFIG. 5 , the top portion 58 of theinner liner 44 wraps around the entire top of the topouter shell segment 24 including therim 32. The top portion 58 of theliner 44 includes athroat 61 and may includescrew threads 62 in thethroat 61. - Referring to
FIG. 6 , the bottom 40 of the baseouter shell segment 22 includes aninner periphery 63 and aperipheral flange 64 extending inward from theinner periphery 63. Thebase portion 46 of the flexibleinner liner 44 further includes aperipheral groove 66 therein. Theperipheral flange 64 of the baseouter shell segment 22 extends into theperipheral groove 66 of the innerliner base portion 46 thereby securing theliner base portion 46 to the baseouter shell segment 22. As thebase portion 46 of theliner 44 is an integral portion of the one-piece moldedliner 44, thecollapsible cup 20 will be liquid-tight at the bottom of the cup. - As further shown in
FIG. 6 , eachtubular sleeve 28 includes aninner periphery 68 andscrew threads 70 on itsinner periphery 68. Thescrew threads 70 of thetubular sleeve 28 engage thescrew threads 50 at the top 38 of each intermediateouter shell segment 26 thereby locking thetubular sleeves 28 to the intermediateouter shell segments 26. Thetubular sleeves 28 further include an inward extendinglower leg 72 that is in contact with theouter side 36 of theouter shell segments lower legs 72 of eachsleeve 28 provides friction against the respectiveouter shell segment FIG. 8 , to the expanded configuration as shown inFIGS. 1 and 4 . Preferably, the integraltubular sleeves 28 are constructed of silicone rubber. - Referring to
FIGS. 9 and 10 , thecollapsible cup 20 may further include alid 74 threaded into thescrew threads 62 in thethroat 61 of the flexibleinner liner 44. Thelid 74 inFIGS. 9-10 includes ahinge 76 and a flip upcover 78 pivotally attached and rotatable within thehinge 76 to provide access to the chink stored within thecollapsible cup 20. Although one specific embodiment of alid 74 is shown herein, other conventional lids are within the scope of the invention for use with thecollapsible cup 20 including lids with sliding covers, pop up nozzles, holes with tubes extending there through, and snap on lids rather than lids with screw threads. - As shown in
FIG. 1 , the tubularouter shell segments collapsible cup 20 according to the present invention are of steadily decreasing diameter from the topouter shell segment 24 to the baseouter shell segment 22. Thus, as shown inFIG. 4 , in the expanded configuration when each outer shell segment is turned counterclockwise with respect to the next lower segment,screw thread 48 on the bottom of the segment will disengage fromscrew thread 50 on the top of the next lower segment and thecollapsible cup 20 will fold to the collapsed configuration as shown inFIG. 8 . - With reference to
FIG. 8 , the inward extendinglower legs 72 of thetubular sleeves 28 will exert friction on thebase segment 22 and thesleeve 28 it is in contact with and function to hold the cup in the collapsed configuration. The cup in the collapsed configuration includes the baseouter shell segment 22 nested within the intermediateouter shell segments 26 and theintermediate segments 26 within the topouter shell segment 24. Flexibleinner liner 44, being molded in one-piece of rubber and secured tightly at thetop rim 32 and to theperipheral flange 64 on the baseouter shell segment 22, is liquid-tight in both the expanded and collapsed configuration. The entireinner volume 30 of thecollapsible cup 20 is bound by theinner liner 44. - As shown in
FIG. 8 , theintegral sleeves 28 of thecollapsible cup 20 include anouter periphery 80 and anindent 82 in theouter periphery 80. Theindent 82 functions to hold the collapsible cup is in the collapsed configuration. As the top 24 and intermediate 26 segments are collapsed toward thebase segment 22, the inward extendinglower legs 72 of theupper sleeves 28 engage theindents 82 of the lower adjacent sleeve and stop the collapse of the outer shell segments. - With reference to
FIG. 4 , each of the tubular insulatinglayers 42 are preferably secured to theouter shell segments outer shell segments layers 42 are preferably constructed of polyurethane. - As shown in
FIG. 11 , a significant advantage realized with thecollapsible cup 20 of the present invention is that two or more cups can be stacked in order to save shelf space. InFIG. 11 , twocollapsible cups 20 according to the present invention are depicted in the collapsed configuration and stacked one upon another for storage. - With reference to
FIG. 12 there is shown an alternative arrangement for anchoring the flexibleinner liner 44 to the baseouter shell segment 22. In the alternative embodiment of the collapsible cup thebase segment 22 includes a closed bottom 84 and an integral pin 86 extending from the bottom. The flexibleinner liner 44 is molded in one piece with an opening in thebase portion 46 of theinner liner 44 to accommodate the pin 86. The flexibleinner liner 44 is secured to thebase segment 22 by placingbase portion 46 over pin 86. With pin 86 secured within thebase portion 46 of theliner 44, the flexibleinner liner 44 of the collapsible cup can rotate about pin 86 and also remain liquid-tight. - As the invention has been described, it will be apparent to those skilled in the art that the same may be varied in many ways without departing from the spirit and scope of the invention. Any and all such modifications are intended to be included within the scope of the appended claims.
Claims (20)
1. A collapsible cup comprising:
a plurality of rigid interlocking tubular outer shell segments, said outer shell segments including an inner side and an outer side;
said outer shell segments including a base segment, a top segment, and one or more intermediate segments with said base segment including a bottom, said top segment including a rim, and said intermediate segments including a lower outer periphery;
a flexible inner liner secured to said rim of said top segment and extending there from to said bottom of said base segment;
a tubular insulating layer on said inner sides of each of said outer shell segments;
a tubular integral sleeve secured around said lower outer periphery of each of said intermediate outer shell segments; and
screw threads on each of said each of said outer shell segments, said screw threads for engaging complementary screw threads on the adjacent segment there below and holding said collapsible cup in an expanded configuration.
2. The collapsible cup of claim 1 wherein said top segment of said outer shell includes
an inturned wall portion adjacent said rim, said inturned wall portion including an outer periphery; and
a peripheral flange extending outward from said outer periphery of said inturned wall portion.
3. The collapsible cup of claim 2 wherein
said inner liner includes a top portion with a peripheral groove therein; and
said peripheral flange of said top segment extends into said peripheral groove of said top portion of said inner liner thereby securing said top portion of said liner to said top segment of said outer shell.
4. The collapsible cup of claim 1 wherein
said bottom of said base segment of said outer shell includes an inner periphery; and
a peripheral flange extending inward from said inner periphery of said base segment.
5. The collapsible cup of claim 4 wherein
said inner liner includes a base portion with a peripheral groove therein; and
said peripheral flange of said base segment extends into said peripheral groove of said base portion of said inner liner thereby securing said base portion of said liner to said base segment of said outer shell.
6. The collapsible cup of claim 1 wherein
said integral sleeves include an inner periphery and screw threads on said inner periphery; and
said screw threads of said integral sleeves engaging said screw threads on said top of said intermediate segments.
7. The collapsible cup of claim 1 wherein each of said tubular insulating layers are secured to said outer shell segments with adhesive.
8. The collapsible cup of claim 1 wherein said tubular outer shell segments are constructed of materials selected from the group including metal and plastic.
9. The collapsible cup of claim 1 wherein said tubular insulating layers are constructed of polyurethane.
10. The collapsible cup of claim 1 wherein said flexible inner liner is constructed of silicone rubber.
11. The collapsible cup of claim 10 wherein said silicone rubber includes a Shore A hardness of 0.
12. The collapsible cup of claim 11 wherein said silicone rubber is a food grade or FDA approved silicone rubber.
13. The collapsible cup of claim 3 wherein
said top portion of said inner liner includes a throat and screw threads on said throat; and
a lid threaded into said screw threads of said throat of said inner liner.
14. The collapsible cup of claim 1 wherein said lid includes
a hinge thereon; and
a flip up cover pivotally attached to and rotatable about said hinge.
15. The collapsible cup of claim 1 wherein said integral sleeves include
an inward extending lower leg; and
said inward extending lower leg is in contact with said outer side of said outer shell segments,
whereby said lower legs of said integral sleeves provides friction against said outer shell segments for controlling the rate of expansion of said collapsible cup from the collapsed configuration.
16. The collapsible cup of claim 1 wherein said integral sleeves are constructed of silicone rubber.
17. The collapsible cup of claim 1 wherein said tubular outer shell segments are of steadily decreasing diameter from said top segment to said base segment.
18. The collapsible cup of claim 1 wherein said cup in said collapsed configuration includes said base segment within said intermediate segments and said intermediate segments within said top segment.
19. The collapsible cup of claim 1 wherein
said collapsible cup includes an inner volume;
the entire inner volume of said collapsible cup is bound by said inner liner; and
said inner liner is constructed of food grade or FDA approved silicone rubber.
20. The collapsible cup of claim 15 wherein
said integral sleeves include an outer periphery; and
said outer periphery of said sleeves includes an indent therein.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/798,654 US20110248037A1 (en) | 2010-04-08 | 2010-04-08 | Thermally insulated collapsible cup for hot or cold beverages |
US13/065,751 US8333296B1 (en) | 2010-04-08 | 2011-03-29 | Thermally insulated foldable cup for hot or cold beverages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/798,654 US20110248037A1 (en) | 2010-04-08 | 2010-04-08 | Thermally insulated collapsible cup for hot or cold beverages |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/065,751 Continuation-In-Part US8333296B1 (en) | 2010-04-08 | 2011-03-29 | Thermally insulated foldable cup for hot or cold beverages |
Publications (1)
Publication Number | Publication Date |
---|---|
US20110248037A1 true US20110248037A1 (en) | 2011-10-13 |
Family
ID=44760195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/798,654 Abandoned US20110248037A1 (en) | 2010-04-08 | 2010-04-08 | Thermally insulated collapsible cup for hot or cold beverages |
Country Status (1)
Country | Link |
---|---|
US (1) | US20110248037A1 (en) |
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Legal Events
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Owner name: E&M ENGINEERING, INC., VIRGINIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUNG, DUNCAN C.;REEL/FRAME:024281/0935 Effective date: 20100407 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |