Closures
First Claim
1. A closure for the open mouth of a container, the closure including:
- a resiliently flexible diaphragm including a sealing edge with a perimeter defining a periphery of the diaphragm, the sealing edge of the diaphragm being sealable against an inside wall surface of the open mouth of the container;
a cover with which the diaphragm is mounted; and
a deformation mechanism, whereby the diaphragm can be deformed so as to reduce a length of the perimeter of the sealing edge of the diaphragm to break a sealing effect between the sealing edge of the diaphragm and the inside wall surface,wherein the cover comprises first and second cover sections coupled together and retaining therebetween at least part of the deformation mechanism,wherein the first and second cover sections are coupled together by first and second separate mechanical connections, andwherein the first mechanical connection is formed by fitting together a peripheral skirt of the first cover section and a peripheral wall of the second cover section in an overlapping arrangement.
1 Assignment
0 Petitions
Accused Products
Abstract
A closure for the open mouth of an airtight container. The closure has a resiliently flexible diaphragm which has a peripheral edge (37) which can sealing engage against an inside wall surface of the open mouth. The diaphragm (13) is engaged with the second cover section (12) of a cover. A pair of toggles (24) are pivotally mounted on axles (22) of second cover section (12). The levers (30) of the toggles (24) extend through an opening (44) in the first or outer cover section (11) when the first and second cover sections (11,12) are snap-locked together. By moving the levers (30) toward one another the respective feet (27) of the toggle (24) engage with area (35) of the diaphragm (13) to deform the diaphragm and thereby break a sealing effect between the peripheral edge of the diaphragm and the inside wall surface of the open mouth.
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Citations
13 Claims
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1. A closure for the open mouth of a container, the closure including:
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a resiliently flexible diaphragm including a sealing edge with a perimeter defining a periphery of the diaphragm, the sealing edge of the diaphragm being sealable against an inside wall surface of the open mouth of the container; a cover with which the diaphragm is mounted; and a deformation mechanism, whereby the diaphragm can be deformed so as to reduce a length of the perimeter of the sealing edge of the diaphragm to break a sealing effect between the sealing edge of the diaphragm and the inside wall surface, wherein the cover comprises first and second cover sections coupled together and retaining therebetween at least part of the deformation mechanism, wherein the first and second cover sections are coupled together by first and second separate mechanical connections, and wherein the first mechanical connection is formed by fitting together a peripheral skirt of the first cover section and a peripheral wall of the second cover section in an overlapping arrangement. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A closure for the open mouth of a container, the closure including:
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a resiliently flexible diaphragm including a sealing edge with a perimeter defining a periphery of the diaphragm, the sealing edge of the diaphragm being sealable against an inside wall surface of the open mouth of the container; a cover with which the diaphragm is mounted; and a deformation mechanism, whereby the diaphragm can be deformed so as to reduce a length of the perimeter of the sealing edge to break a sealing effect between the sealing edge of the diaphragm and the inside wall surface, wherein the cover comprises first and second cover sections coupled together and retaining therebetween at least part of the deformation mechanism, wherein the deformation mechanism includes a pair of toggles pivotally mounted with the cover, each toggle including an engagement portion engageable with a contact area of the diaphragm, and wherein the second cover section includes a pair of axles, each axle engaging with a sleeve of a toggle, and wherein each axle has a stub axle which is held within a clip of the first cover section. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A closure for the open mouth of a container, the closure including:
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a resiliently flexible diaphragm including a sealing edge with a perimeter defining a periphery of the diaphragm, the sealing edge of the diaphragm being sealable against an inside wall surface of the open mouth of the container; a cover with which the diaphragm is mounted; and a deformation mechanism, whereby the diaphragm can be deformed so as to reduce a length of the perimeter of the sealing edge to break a sealing effect between the sealing edge of the diaphragm and the inside wall surface, wherein the cover comprises first and second cover sections coupled together and retaining therebetween at least part of the deformation mechanism, wherein the deformation mechanism includes a pair of toggles pivotally mounted with the cover, each toggle including an engagement portion engageable with a contact area of the diaphragm, wherein each toggle includes a lever, which projects through an opening in the first cover section, said levers being oppositely disposed, wherein each lever projects from a respective sleeve, each sleeve being pivotally mounted on an axle carried by the second cover section, and wherein the engagement portion is formed by a foot, each foot being coupled to a respective sleeve, and each foot projecting from a side of the respective sleeve that is substantially opposite to the side from which the lever projects, wherein each foot extends on an incline relative to a central pivot axis of the respective sleeve, and wherein the foot has a distal end, which engages with an area of the diaphragm which is of increased thickness.
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Specification