Closed injection moulded closure providing mating upper and lower parts coupled by integrally formed hinge connections

A closed injection moulded closure comprising:

• a first closure part;
• a second closure part;
• and
• two connecting elements connected to the first closure part and the second closure part by two pairs of hinge connections, each said pair of hinge connections having a first hinge connection and a second hinge connection, each said first hinge connection connecting upper sides of said connecting elements to said first closure part, each said second hinge connection connecting bottom sides of said connecting elements to said second closure part, each said hinge connections making a first angle (φ) with one another, and defining two planes making a second angle (ω) with one another, wherein, in a closed position of the closure, each of said planes is inclined relative to a central closure axis and the two connecting elements and the two pairs of hinge connections are accessible in the mould from the inside of the closure and from the outside of the closure and can be removed from the mould;
• each of said connecting elements having a shorter edge and a longer edge, said shorter edge being closer to an apex of said first angle (φ) than said longer edge and being pressure-resistant, said longer edge lengthening elastically and reversibly under a tensile stress;
• and
• said closed injection moulded closure being free from a main hinge connection between said first closure part and said second closure part.

A closed injection moulded closure, further comprising;

• a first closure part;
• a second closure part;
• means for partially stiffening the first and the second closure parts;
• and
• two connecting elements connected to the first closure part and the second closure part by two pairs of hinge connections, each said pair of hinge connections having a first hinge connection and a second hinge connection, each said first hinge connection connecting upper sides of said connecting elements to said first closure part, each said second hinge connection connecting bottom sides of said connecting elements to said second closure part, each said hinge connections making a first angle (φ) with one another, and defining two planes making a second angle (ω) with one another, wherein, in a closed position of the closure, each of said planes is inclined relative to a central closure axis and the two connecting elements and the two pairs of hinge connections are accessible in the mould from the inside of the closure and from the outside of the closure and can be removed from the mould, said closed injection moulded closure being free from a main hinge connection between said first closure part and said second closure part.

A closure for a container, comprising:

• a first closure part;
• a second closure part to be placed on the container, said first closure part opening and closing the container by moving relative to said second closure part;
• at least two connecting elements connecting said first closure part and said second closure part, each said connecting element having a first side separated from a second side, by an intermediate third side spaced-apart from an intermediate fourth side, said fourth side being longer than said third side;
• and
• two pairs of hinge connections, each said pair of hinge connections comprising a first hinge connection and a second hinge connection, said first side of each said connecting element connected to said first closure part via said first hinge connection, said second side of each said connecting element connected to said second closure part via said second hinge connection, wherein in a closed position of the closure each said first hinge connection is closer to an axis of closure than are said second hinge connection, with said first closure part assuming at least two stable positions and assuming unstable positions between said at least two stable positions and with the two connecting elements and the two pairs of hinge connections being accessible in a mould from the inside of the closure and from the outside of the closure and being removable from the mould;
• said closure being free from a main hinge connection between said first closure part and said second closure part.

A closure for a container, comprising:

• a lower closure part oriented to engage an opened end of the container;
• an upper closure part disposed to assume at least two spatially defined and stable positions relative to said lower closure part;
• and
• two connecting elements spaced-apart by an intermediate gap, joining said lower closure part and said upper part by two pairs of hinge connections, each said pair of hinge connections having a first hinge connection and a second hinge connection, each said first hinge connection joining upper sides of said connecting elements to said upper closure part, each said second hinge connection joining bottom sides of said connecting elements to said lower part, with a first angle (φ) occurring between said first and said second hinge connections of each said pair of hinge connections and each of said pair of hinge connections defining a plane with a second angle (ω) occurring between each said plane, with each said plane being inclined relative to a closure axis of said closure, the two connecting elements and the two pairs of hinge connections being accessible in a mould from the inside of the closure and from the outside of the closure and being removable from the mould;
• said closure being free from a main hinge connection between said first closure part and said second closure part.

A closure for a container, comprising:

• a lower closure part oriented to engage an open end of the container;
• an upper closure part disposed to mate with said lower closure part, along a peripheral junction that forms a demarcation between said lower closure part and said upper closure part when said closure is in a closed position of said closure, and joined to said lower closure part by at least one frangible element traversing said peripheral junction while said closure maintains a virginity of said closed position;
• and
• two connecting elements spaced-apart by an intermediate gap movably joining said lower closure part and said upper part by two pairs of hinge connections, each said pair of hinge connections having a first hinge connection and a second hinge connection, each said first hinge connection joining upper sides of said connecting elements to said upper closure part, each said second hinge connection joining bottom sides of said connecting elements to said lower part, with a first angle (φ) occurring between said first and said second hinge connections of each said pair of hinge connections and each of said pair of hinge connections defining a plane with a second angle (ω) occurring between each said plane, with each said plane being inclined relative to a central closure axis of said closure, and the two connecting elements and the two pairs of hinge connections being accessible in a mould from the inside of the closure and from the outside of the closure, with the closure being removable from the mould.

The closure of claim with said closure providing a relationship among an opening angle (α), said first angle (φ) and said second angle (ω) given by a formula of:

• ϕ
• =
• 2
• ·
• arctan
• ⁡
• [
• sin
• ⁡
• (
• α
• /
• 2
• )
• 1
• -
• cos
• ⁡
• (
• α
• /
• 2
• )
• ·
• sin
• ⁡
• (
• ω
• /
• 2
• )
• ]
• where said opening angle (α) is an angle between the first closure part and the second closure part while said first closure part is rotatably displaced from said closed position to an open position of the closure.

A closed injection moulded process, comprising:

• simultaneously moulding in a closed position, an entirety of a closure comprised of a first closure part mated in a closed position against a second closure part along a peripheral junction that forms a demarcation between said lower closure part and said upper closure part, and joined to said lower closure part by at least one frangible element traversing said peripheral junction while said closure maintains a virginity of said closed position;
• and
• two connecting elements spaced-apart by an intermediate gap, connected to the first closure part and the second closure part by two pairs of hinge connections, each said pair of hinge connections having a first hinge connection and a second hinge connection, each said first hinge connection joining upper sides of said connecting elements to said first closure part, each said second hinge connection joining bottom sides of said connecting elements to said second closure part, each said pair of hinge connections making a first angle (φ) with one another, and defining a plane, the planes defined by said two pairs of hinge connections making a second angle (ω) with one another, wherein, in the closed position of the closure, the planes are inclined relative to a closure axis, with the two connecting elements and the two pairs of hinge connections being accessible in the mould from the inside of the closure and from the outside of the closure;
• and
• removing the closure from the mould.