CA2211498A1 - Unitary snap-close dispenser screw-cap - Google Patents
Unitary snap-close dispenser screw-capInfo
- Publication number
- CA2211498A1 CA2211498A1 CA 2211498 CA2211498A CA2211498A1 CA 2211498 A1 CA2211498 A1 CA 2211498A1 CA 2211498 CA2211498 CA 2211498 CA 2211498 A CA2211498 A CA 2211498A CA 2211498 A1 CA2211498 A1 CA 2211498A1
- Authority
- CA
- Canada
- Prior art keywords
- spout
- cap
- set forth
- container
- lid
- 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
Links
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- Closures For Containers (AREA)
Abstract
An injection-molded, low-cost unitary screw cap sealing closure for medical specimen containers has a flip-up pouring spout which may be closed down to reseal the container. The spout enables pouring dispensation of the liquid contents, and subsequent resealing. The pouring spout and its attached lid are housed in a rectangular recess in the top of the screw cap, and fit flush therewith when closed. The cap recess provides access for the entry of a finger-nail of a user, or other opening device beneath the lid edge, to pry open the spout. The spout lid is attached by way of a molded flexible "live" hinge. The pouring spout is molded to the front, underside of the lid.
The lower front edge of the spout is sealed to the cap by a flexible sealing diaphragm. A small transverse bridge is in the cap recess, against which the pouring spout seals, when closed. The bridge carries a pair of latches which lockingly engage the spout sides. The spout is divided laterally into a liquid transfer portion and an adjoining small atmospheric vent tube portion, both of which passages are sealed closed when the spout is in its closed position.
The spout and the free-end portion of its lid are sized to enter the mouth of a laboratory test-tube, while the cross-section of the spout liquid transfer portion permits the insertion of a urine dip-stick, an inoculation loop or a transfer pipette into the container contents.
The lower front edge of the spout is sealed to the cap by a flexible sealing diaphragm. A small transverse bridge is in the cap recess, against which the pouring spout seals, when closed. The bridge carries a pair of latches which lockingly engage the spout sides. The spout is divided laterally into a liquid transfer portion and an adjoining small atmospheric vent tube portion, both of which passages are sealed closed when the spout is in its closed position.
The spout and the free-end portion of its lid are sized to enter the mouth of a laboratory test-tube, while the cross-section of the spout liquid transfer portion permits the insertion of a urine dip-stick, an inoculation loop or a transfer pipette into the container contents.
Description
UNITARY SNAP-CLOSE DISPENSER SCREW-CAP
TECHNICAL FIELD
5 This invention is directed to a closure cap for use with containers for liquids, and in particular to a unitary, hermetic-sealing, injection-molded, vented screw cap having a deployable and storable pouring spout, for use with liquid specimen containers.
The storage and h~n~lling of fluid medical specimens has recently assumed greatly emphasized significance, due in part to the emergence of highly contagious viral infections such as HIV and the associated AIDS.
One existing type of container is a cylindrical, laboratory test-tube of plastichaving a push-in stopper. The stopper is usually removable, and may be provided with a soft rubber penetration zone, through which can be introduced a hollow needle or canula for removing a sample of the fluid 20 contents of the tube.
In some instances such penetration zones are self-healing, so that removal of the canula or needle permits the penetration zone to close and "heal", i.e. to seal. Such stoppers are limited in the number of "healings" they can 25 provide, while m~int~ining sealing integrity. Another problem that can arise is the amount of force that may, on occasion, be required to extract the stopper from the tube.
With a tightly engaged stopper, the application of sufficient force to overcome the friction and stiction that can readily develop can lead to a sudden, unexpected and uncontrolled withdrawal of the stopper from the tube, with possible formation and ejection of an aerosol of the contained 5 fluid, and/or the uncontrolled spilling of the fluid, with potentially fatal ultimate consequences. Flip-tops somewhat akin to the structure of the present invention are known, being molded as the dispenser heads of flexible-walled, manually compressible containers such as hand-cream tubes, for dispensing the viscid contents thereof. Due to the high viscosity nature 10 of the semi-fluid contents, and the manual compression of the tube wall required to express the tube contents, such flip tops are not required to be fully sealing, in a hermetic sense, while venting of the container to atmosphere is not required.
15 Certain aspects of prior art flip-top closures may be found in U.S. Patent Nos. 3,542,256 and 4,860,934.
SUMMARY OF THE INVENTION
The present invention provides a semi-rigid, threaded screw cap for use in combination with a container having a threaded neck, to which the cap is screwed.
25 The crown of the cap may incorporate a unitary molded hinged spout, normally positioned in a retracted, recessed condition flush with the crown of the cap. The retracted spout may be readily pried open, in upward pivotal movement thereof.
The spout preferably has a projecting covering lid portion which conceals and protects the spout, the projecting tongue portion of which facilitates opening of the spout.
5 The spout portion per se is connected in enclosed sealing relation to the adjacent crown of the cap by way of a resilient, molded diaphragm, that serves as part of the spout hingin~; provision, and as a seal. The lid portion of the spout also is hinged to the cover by way of a molded plastic "live"
hinge, which seals a further portion of the periphery of the spout to the 10 crown of the cover.
In the preferred arrangement the resilient diaphragm serves as a spring to hold the spout in its closed position and in its open position.
15 The present invention thus provides a removable cap for use in sealing relation with a container, the cap having a crown portion, a movable spout means attached in sealing relation to the cap crown portion, the spout means being movable from a first retracted, sealing position to a second, extended pouring position, and atmospheric vent means comprising a portion of the 20 spout means, the vent means being sealed closed when the spout means is in its first, closed position and the vent means being open for passage of air into the cap when the spout is in a second, open condition.
The cap includes sealing abutment means located to engage the ends of the 25 spout, when the spout is in a retracted sealing position, to substantially hermetically seal the cap crown portion.
The moveable spout means includes a liquid transfer passage and an adjacent atmospheric vent passage, both of which are sealed at their respective inlet and outlet ends when the spout is in its retracted position.
5 The spout is dimensioned to permit ready insertion through the spout of reagent strips, loops, pippettes etc. for test purposes on the extraction of fluid samples.
The cap sealing abutment means for the spout outlet is profiled in sealing 10 relation with the adjoining mouth portion of the spout means when the spout means is in its retracted, sealing position.
The cap spout means includes a lid portion having an extended tongue portion located in projecting relation beyond the outlet of the spout means, 15 the lid portion lying in substantial flush relation with the crown portion when the spout means is in its retracted position.
The cap herein disclosed is preferably used in combination with a semi-rigid or rigid container, wherein medical fluid specimens may be safely 20 transported in a sealed condition, with substantially no likelihood of leakage.
The subject cap permits safe pouring off of liquid contents from the container, the atmospheric vent admitting air, to m~int~in atmospheric pressure within the container during such pouring off so as to preclude any 25 interference in the transfer of the liquid.
This feature enables use of the subject cap with rigid containers.
The cap spout with its protective lid portion is located and dimensioned to enable positioning of the tongue portion of the lid and the spout outlet within the mouth of a laboratory test tube, for safe transfer in non-spl~hing relation of the container liquid contents. The sealing of the cap to the lip of 5 the container on which it is secured is effected by a three-surface compression seal, to overcome the tendency of polyethylene to relax out of sealing contact, in accordance with the teaching of our U.S. Patent No.
, of common ownership herewith.
10 Prelimin~ry tests with proto-type caps in accordance with the present invention, within a vacuum chamber have demonstrated that the caps in combination with semi-rigid plastic containers, having liquid contents thereof sealed by the cap at atmospheric pressure~ have m~int~ined the integrity of the seal under vacuum as high as eight pounds per square inch 15 below atmospheric pressure, so as to be able to safely cope with conditions such as the de-pressurization of an aircraft.
The subject cap is a low cost unitary structure, molded in its open condition, in high density polyethylene.
The process of m~mlf~cture includes the step of closing the cap, after removal thereof from the mold.
The use of flip-top caps in accordance with the invention is contemplated in 25 combination with containers for comestibles, such as soft drinks, fruit juices, etc.
~ CA 02211498 1997-07-24 BRIEF DESCRIPTION OF THE DRAWINGS
Certain embodiments of the invention are described by way of illustration, without limitation of the invention thereto other than as set forth in the 5 accompanying claims, reference being made to the accompanying drawings, wherem:
Figure l is a plan view, looking down upon the flip-top cap in accordance with the invention, having the spout thereof in a fully open position;
Figure 2 is a diametrical section, in elevation, of the subject cap, taken at section 2-2 of Figure l;
Figure 3 is an end elevation, taken in section at 3-3 of Figure l, and 15 showing the spout thereof in entered relation into an open end of a laboratory test tube;
Figure 3A is an enlarged detail of a portion of Figure 3; and 20 Figure 4 is a side perspective of a container and cap in inverted pouring relation with a laboratory test tube.
DETAILED DESCRIPTION OF THE INVENTION
Referring to Figures l and 2, an injection-molded, low-cost unitary screw cap closure l0 for rigid, or semi-rigid containers for medical specimens has a flip-up pouring spout 12, to enable pouring dispensation of the liquid contents, and subsequent resealing.
The spout 12 has an entry end 11 and an exit end 13. The pouring spout 12, 5 with its attached, extended lid portion 14 is housed in a rectangular recess 16 in the top of the screw cap 10, and the lid portion 14 fits flush therewith when closed. The cap rectangular recess 16 extends beyond the front tongue portion 18 of the closed lid 14, to provide an inclined entry 20 for the finger-nail of a user, or other device, inserted beneath the lid front 10 tongue portion 18, to flip-up the lid.
The inner rim portion of the cap 10 includes a three-sided annular seal recess 101 by means of which a leak-proof compression seal with the rim of the container may be effected.
The cap recess 16 has downwardly depending sides 22 to which the spout 12 is flexibly sealed.
The spout lid 14 is attached to the rear edge of the cap rectangular recess by 20 way of a flexible molded live hinge 24 that forms the rear (lower) edge of the lid 14, to provide an edge seal at that location. The spout per se 12 is molded to the "underside" (front, when open) of the lid portion 14, and comprises a rectangular section asymmetrically divided channel, beyond which the tongue portion 18 of the lid portion 14 projects.
The two channel portions 15, 17 of the spout 12 comprise respectively aliquid pouring channel lS and a return air flow passage 17, for atmospheric equalization when pouring.
, CA 02211498 1997-07-24 The channel 15 is sized to permit the insertion of reagent test strips, inoculation loops, pipettes, etc.
The provision of air passage 17 enables pouring dispensation of liquids from 5 a container without requiring the generation of pressure therein, thus enabling use of the flip-top cap 10 with containers having rigid, or substantially rigid walls.
The lower front edge 28 of the pouring spout is sealed to the adjacent cap by 10 way of a flexible sealing diaphragm 30, which slopes forwardly and downwardly, to join in sealing relation with a small transverse bridge 31 that spans the cap recess 16, in sealed relation with the cap recess side walls 22.
15 The flexible sealing diaphragm 30 is secured at its sides in sealing relationto the cap recess side walls 22. Referring more particularly to Figures 2 and 3 the profiled inner face 36 of an adjoining transverse bridge portion 32 forms a sealing abutment to receive the similarly profiled edges of the outlet mouth 13 of the spout 12 in hermetic sealing engagement when the spout is 20 fully retracted. The upper edge 37 of the bridge portion 32 receives the front (lower) face of the lid in supported, sealing relation thereon, when in the closed condition.
An abuttment 40 to which the live hinge 24 is attached has a downwardly 25 extending face against which the spout inlet 11 is sealed, when in a closed condition.
A pair of latch members 33 that are carried by the bridge 31 secure the spout 12 in its fully closed, sealed position. The latch members 33 (see Figure 3) each includes an upper cam surface portion 35, by which the sides of the spout 12 displace the latch members 33, on movement of the spout 12 5 to its closed position.
A latching surface 39 on each latch member 33 resiliently deforms and engages the adjoining side of the spout 12, to secure the lid 14 and spout 12 in locked, sealing relation, flush with the top of the cap 10.
The resilience of the spout 12 and latch members 33 permits the opening of the spout 12 by insertion by a user of a fingernail or other available agency in upward prying relation beneath the projecting lid tongue portion 18. In the fully closed and latched condition of the spout 12 the spout entry 11 is 15 effectionly shrouded by an adjacent rib 40, which forms a part of the reinforcement structure of the cap 10.
The diaphragm 30 serves as a spring, tending to hold the spout 12 in either the closed or the open position, when moved past the intermediate, dead 20 centre position.
Figure 3 shows the tongue portion 18 and the spout exit 13 inserted within the mouth of a laboratory test tube 45 (shown in phantom), to enable splash-free dispensing of the container liquid contents.
Referring to Figure 4, a semi-rigid container 50 having a cap 10 in secured relation thereon is shown with the spout and a portion of its lid in entered relation within the mouth of a laboratory test-tube 45 into which the liquid contents of the container are being poured.
The cap lO is illustrated as having a tamper detection ring 46 thereon, as 5 may be used for liquid comestibles.
Use also with certain classes of drugs, such as eye drops is contemplated, with perhaps a drop metering nozzle.
INI)USTRIAL APPLICABILITY
Widespread use of this cap, both by the medical profession and industry is confidently expected.
TECHNICAL FIELD
5 This invention is directed to a closure cap for use with containers for liquids, and in particular to a unitary, hermetic-sealing, injection-molded, vented screw cap having a deployable and storable pouring spout, for use with liquid specimen containers.
The storage and h~n~lling of fluid medical specimens has recently assumed greatly emphasized significance, due in part to the emergence of highly contagious viral infections such as HIV and the associated AIDS.
One existing type of container is a cylindrical, laboratory test-tube of plastichaving a push-in stopper. The stopper is usually removable, and may be provided with a soft rubber penetration zone, through which can be introduced a hollow needle or canula for removing a sample of the fluid 20 contents of the tube.
In some instances such penetration zones are self-healing, so that removal of the canula or needle permits the penetration zone to close and "heal", i.e. to seal. Such stoppers are limited in the number of "healings" they can 25 provide, while m~int~ining sealing integrity. Another problem that can arise is the amount of force that may, on occasion, be required to extract the stopper from the tube.
With a tightly engaged stopper, the application of sufficient force to overcome the friction and stiction that can readily develop can lead to a sudden, unexpected and uncontrolled withdrawal of the stopper from the tube, with possible formation and ejection of an aerosol of the contained 5 fluid, and/or the uncontrolled spilling of the fluid, with potentially fatal ultimate consequences. Flip-tops somewhat akin to the structure of the present invention are known, being molded as the dispenser heads of flexible-walled, manually compressible containers such as hand-cream tubes, for dispensing the viscid contents thereof. Due to the high viscosity nature 10 of the semi-fluid contents, and the manual compression of the tube wall required to express the tube contents, such flip tops are not required to be fully sealing, in a hermetic sense, while venting of the container to atmosphere is not required.
15 Certain aspects of prior art flip-top closures may be found in U.S. Patent Nos. 3,542,256 and 4,860,934.
SUMMARY OF THE INVENTION
The present invention provides a semi-rigid, threaded screw cap for use in combination with a container having a threaded neck, to which the cap is screwed.
25 The crown of the cap may incorporate a unitary molded hinged spout, normally positioned in a retracted, recessed condition flush with the crown of the cap. The retracted spout may be readily pried open, in upward pivotal movement thereof.
The spout preferably has a projecting covering lid portion which conceals and protects the spout, the projecting tongue portion of which facilitates opening of the spout.
5 The spout portion per se is connected in enclosed sealing relation to the adjacent crown of the cap by way of a resilient, molded diaphragm, that serves as part of the spout hingin~; provision, and as a seal. The lid portion of the spout also is hinged to the cover by way of a molded plastic "live"
hinge, which seals a further portion of the periphery of the spout to the 10 crown of the cover.
In the preferred arrangement the resilient diaphragm serves as a spring to hold the spout in its closed position and in its open position.
15 The present invention thus provides a removable cap for use in sealing relation with a container, the cap having a crown portion, a movable spout means attached in sealing relation to the cap crown portion, the spout means being movable from a first retracted, sealing position to a second, extended pouring position, and atmospheric vent means comprising a portion of the 20 spout means, the vent means being sealed closed when the spout means is in its first, closed position and the vent means being open for passage of air into the cap when the spout is in a second, open condition.
The cap includes sealing abutment means located to engage the ends of the 25 spout, when the spout is in a retracted sealing position, to substantially hermetically seal the cap crown portion.
The moveable spout means includes a liquid transfer passage and an adjacent atmospheric vent passage, both of which are sealed at their respective inlet and outlet ends when the spout is in its retracted position.
5 The spout is dimensioned to permit ready insertion through the spout of reagent strips, loops, pippettes etc. for test purposes on the extraction of fluid samples.
The cap sealing abutment means for the spout outlet is profiled in sealing 10 relation with the adjoining mouth portion of the spout means when the spout means is in its retracted, sealing position.
The cap spout means includes a lid portion having an extended tongue portion located in projecting relation beyond the outlet of the spout means, 15 the lid portion lying in substantial flush relation with the crown portion when the spout means is in its retracted position.
The cap herein disclosed is preferably used in combination with a semi-rigid or rigid container, wherein medical fluid specimens may be safely 20 transported in a sealed condition, with substantially no likelihood of leakage.
The subject cap permits safe pouring off of liquid contents from the container, the atmospheric vent admitting air, to m~int~in atmospheric pressure within the container during such pouring off so as to preclude any 25 interference in the transfer of the liquid.
This feature enables use of the subject cap with rigid containers.
The cap spout with its protective lid portion is located and dimensioned to enable positioning of the tongue portion of the lid and the spout outlet within the mouth of a laboratory test tube, for safe transfer in non-spl~hing relation of the container liquid contents. The sealing of the cap to the lip of 5 the container on which it is secured is effected by a three-surface compression seal, to overcome the tendency of polyethylene to relax out of sealing contact, in accordance with the teaching of our U.S. Patent No.
, of common ownership herewith.
10 Prelimin~ry tests with proto-type caps in accordance with the present invention, within a vacuum chamber have demonstrated that the caps in combination with semi-rigid plastic containers, having liquid contents thereof sealed by the cap at atmospheric pressure~ have m~int~ined the integrity of the seal under vacuum as high as eight pounds per square inch 15 below atmospheric pressure, so as to be able to safely cope with conditions such as the de-pressurization of an aircraft.
The subject cap is a low cost unitary structure, molded in its open condition, in high density polyethylene.
The process of m~mlf~cture includes the step of closing the cap, after removal thereof from the mold.
The use of flip-top caps in accordance with the invention is contemplated in 25 combination with containers for comestibles, such as soft drinks, fruit juices, etc.
~ CA 02211498 1997-07-24 BRIEF DESCRIPTION OF THE DRAWINGS
Certain embodiments of the invention are described by way of illustration, without limitation of the invention thereto other than as set forth in the 5 accompanying claims, reference being made to the accompanying drawings, wherem:
Figure l is a plan view, looking down upon the flip-top cap in accordance with the invention, having the spout thereof in a fully open position;
Figure 2 is a diametrical section, in elevation, of the subject cap, taken at section 2-2 of Figure l;
Figure 3 is an end elevation, taken in section at 3-3 of Figure l, and 15 showing the spout thereof in entered relation into an open end of a laboratory test tube;
Figure 3A is an enlarged detail of a portion of Figure 3; and 20 Figure 4 is a side perspective of a container and cap in inverted pouring relation with a laboratory test tube.
DETAILED DESCRIPTION OF THE INVENTION
Referring to Figures l and 2, an injection-molded, low-cost unitary screw cap closure l0 for rigid, or semi-rigid containers for medical specimens has a flip-up pouring spout 12, to enable pouring dispensation of the liquid contents, and subsequent resealing.
The spout 12 has an entry end 11 and an exit end 13. The pouring spout 12, 5 with its attached, extended lid portion 14 is housed in a rectangular recess 16 in the top of the screw cap 10, and the lid portion 14 fits flush therewith when closed. The cap rectangular recess 16 extends beyond the front tongue portion 18 of the closed lid 14, to provide an inclined entry 20 for the finger-nail of a user, or other device, inserted beneath the lid front 10 tongue portion 18, to flip-up the lid.
The inner rim portion of the cap 10 includes a three-sided annular seal recess 101 by means of which a leak-proof compression seal with the rim of the container may be effected.
The cap recess 16 has downwardly depending sides 22 to which the spout 12 is flexibly sealed.
The spout lid 14 is attached to the rear edge of the cap rectangular recess by 20 way of a flexible molded live hinge 24 that forms the rear (lower) edge of the lid 14, to provide an edge seal at that location. The spout per se 12 is molded to the "underside" (front, when open) of the lid portion 14, and comprises a rectangular section asymmetrically divided channel, beyond which the tongue portion 18 of the lid portion 14 projects.
The two channel portions 15, 17 of the spout 12 comprise respectively aliquid pouring channel lS and a return air flow passage 17, for atmospheric equalization when pouring.
, CA 02211498 1997-07-24 The channel 15 is sized to permit the insertion of reagent test strips, inoculation loops, pipettes, etc.
The provision of air passage 17 enables pouring dispensation of liquids from 5 a container without requiring the generation of pressure therein, thus enabling use of the flip-top cap 10 with containers having rigid, or substantially rigid walls.
The lower front edge 28 of the pouring spout is sealed to the adjacent cap by 10 way of a flexible sealing diaphragm 30, which slopes forwardly and downwardly, to join in sealing relation with a small transverse bridge 31 that spans the cap recess 16, in sealed relation with the cap recess side walls 22.
15 The flexible sealing diaphragm 30 is secured at its sides in sealing relationto the cap recess side walls 22. Referring more particularly to Figures 2 and 3 the profiled inner face 36 of an adjoining transverse bridge portion 32 forms a sealing abutment to receive the similarly profiled edges of the outlet mouth 13 of the spout 12 in hermetic sealing engagement when the spout is 20 fully retracted. The upper edge 37 of the bridge portion 32 receives the front (lower) face of the lid in supported, sealing relation thereon, when in the closed condition.
An abuttment 40 to which the live hinge 24 is attached has a downwardly 25 extending face against which the spout inlet 11 is sealed, when in a closed condition.
A pair of latch members 33 that are carried by the bridge 31 secure the spout 12 in its fully closed, sealed position. The latch members 33 (see Figure 3) each includes an upper cam surface portion 35, by which the sides of the spout 12 displace the latch members 33, on movement of the spout 12 5 to its closed position.
A latching surface 39 on each latch member 33 resiliently deforms and engages the adjoining side of the spout 12, to secure the lid 14 and spout 12 in locked, sealing relation, flush with the top of the cap 10.
The resilience of the spout 12 and latch members 33 permits the opening of the spout 12 by insertion by a user of a fingernail or other available agency in upward prying relation beneath the projecting lid tongue portion 18. In the fully closed and latched condition of the spout 12 the spout entry 11 is 15 effectionly shrouded by an adjacent rib 40, which forms a part of the reinforcement structure of the cap 10.
The diaphragm 30 serves as a spring, tending to hold the spout 12 in either the closed or the open position, when moved past the intermediate, dead 20 centre position.
Figure 3 shows the tongue portion 18 and the spout exit 13 inserted within the mouth of a laboratory test tube 45 (shown in phantom), to enable splash-free dispensing of the container liquid contents.
Referring to Figure 4, a semi-rigid container 50 having a cap 10 in secured relation thereon is shown with the spout and a portion of its lid in entered relation within the mouth of a laboratory test-tube 45 into which the liquid contents of the container are being poured.
The cap lO is illustrated as having a tamper detection ring 46 thereon, as 5 may be used for liquid comestibles.
Use also with certain classes of drugs, such as eye drops is contemplated, with perhaps a drop metering nozzle.
INI)USTRIAL APPLICABILITY
Widespread use of this cap, both by the medical profession and industry is confidently expected.
Claims (18)
1. A removable cap for use in sealing relation with a container, the cap being of unitary, molded construction, and having a crown portion, a movable spout means attached in sealing relation to the cap crown portion, said spout means being movable from a first retracted sealing position to a second, extended pouring position.
2. The cap as set forth in Claim 1, including sealing abutment means located to engage the outlet end of said spout means, when the spout is in a retracted sealing position to hermetically seal the cap crown portion.
3. The cap as set fourth in Claim 1, said spout means including atmospheric vent means, said vent means being in closed off, sealing relation when said spout is in a retracted, sealed condition.
4. The cap as set forth in Claim 2, said sealing abutment means being profiled in sealing relation with the adjoining portion of said spout means when the spout means is in its retracted, sealing position.
5. The cap a set forth in Claim 1, said spout means including a lid portion located in projecting relation beyond the outlet of the spout means, the lid portion lying in substantial flush relation with said crown portion when the spout means is in its retracted position.
6. The cap as set forth in Claim 1, including latch means to retain said spout in said closed, sealed condition.
7. The cap as set forth in Claim 6, said latch means being mounted adjoining said spout means when said spout means is in a retracted, sealed condition, whereby said latch means resiliently engage the opposed sides of said spout means.
8. The cap as set forth in Claim 1, said spout means being dimensioned to receive an article selected from the group consisting of urine dipsticks, inoculation loops, and transfer pipettes, when in an opened condition.
9. The cap as set forth in Claim 6, including a lid portion having an extended tongue portion of said lid, to facilitate the prying open of the lid and spout.
10. The cap as set forth in Claim 1, being molded plastic.
11. The cap as set forth in Claim 10, said plastic being high density polyethylene.
12. The cap as set forth in Claim 10, said crown having an internal peripheral groove to receive a neck portion of a container in inserted relation therein, said peripheral groove having three mutually adjoining seal surfaces, in use to provide retained sealing contact with said neck portion when inserted therein.
13. The cap as set forth in Claim 1, in combination with said container, said container having a threaded neck portion to receive said cap in secured sealing relation thereon.
14. The cap and container combination as set forth in Claim 13, said container being at least of semi-rigid constructions.
15. The cap and container combination as set forth in Claim 13, said container being of semi-rigid plastic construction and having a cylindrical cross-section.
16. The cap and container combination as set forth in Claim 13, said spout having a liquid transfer passage and an atmospheric vent passage, said liquid transfer passage being dimensioned to permit substantially unobstructed insertion of an article selected from the group consisting of a urine dipstick, an inoculation loop, and the nozzle of a transfer pipette.
17. The cap and container combination as set forth in Claim 13, and further including a laboratory test tube; said lid and said spout being sized topermit entry insertion thereof within the mouth of said tube, in use to facilitate splash-free transference of liquid from said container to said tube.
18. The cap as set forth in Claim 1, having a flexible diaphragm connecting said movable spout means to said cap, said diaphragm acting as a spring to hold the spout in the closed position and in the open position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68616096A | 1996-07-24 | 1996-07-24 | |
| US08/686,160 | 1996-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2211498A1 true CA2211498A1 (en) | 1998-01-24 |
Family
ID=24755155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2211498 Abandoned CA2211498A1 (en) | 1996-07-24 | 1997-07-24 | Unitary snap-close dispenser screw-cap |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2211498A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT500726A1 (en) * | 2003-04-10 | 2006-03-15 | Neuhauser Josef | DEVICE FOR CLOSING A BEVERAGE CONTAINER |
-
1997
- 1997-07-24 CA CA 2211498 patent/CA2211498A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT500726A1 (en) * | 2003-04-10 | 2006-03-15 | Neuhauser Josef | DEVICE FOR CLOSING A BEVERAGE CONTAINER |
| AT500726B1 (en) * | 2003-04-10 | 2006-08-15 | Neuhauser Josef | DEVICE FOR CLOSING A BEVERAGE CONTAINER |
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