FILM DISPENSER
First Claim
1. A film dispenser for use in unwinding film from coreless film rolls each having a roll axis passage including first and second openings at opposite ends of the coreless film roll, the film dispenser comprising:
- a first dispenser member having an outer axial end portion and an inner axial end portion opposite the outer axial end portion, the inner axial end portion of the first dispenser member being shaped and arranged to be inserted into the first opening at one end of the coreless film roll, the inner axial end portion of the first dispenser member being radially expandable to engage the coreless film roll in the roll axis passage; and
a second dispenser member having an outer axial end portion and an inner axial end portion opposite the outer axial end portion, the inner axial end portion of the second dispenser member being shaped and arranged to be inserted into the second opening at another end of the coreless film roll, the second dispenser member being configured to engage the first dispenser member, the first and second dispenser members being selectively positionable relative to one another when interengaged in at least a first angular position and a second angular position, the inner axial end portion of the first dispenser member having a first radial position upon engagement of the first and second dispenser members in the first angular position, and the inner axial end portion of the first dispenser member being expanded to a second radial position upon engagement of the first and second dispenser members in the second angular position, the second radial position being radially outward of the first radial position.
2 Assignments
0 Petitions
Accused Products
Abstract
A film dispenser for use in unwinding film from coreless film rolls. A first dispenser member is selectively matable with a second dispenser member. The first and second dispenser members can be mated together in at least two angular positions. The position of a radially outward facing surface of the dispenser can be adjusted based on the angular position of the dispenser members so that the dispenser can firmly engage and support film rolls of varying internal dimensions. Each of the dispenser members can have a radially extending support wall. The support walls define complementary interlocking formations. When the dispenser members are mated together, the complementary interlocking formations engage one another to form a rigid connection between the dispenser members. The engaged support walls radially support a central region of the film roll.
5 Citations
20 Claims
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1. A film dispenser for use in unwinding film from coreless film rolls each having a roll axis passage including first and second openings at opposite ends of the coreless film roll, the film dispenser comprising:
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a first dispenser member having an outer axial end portion and an inner axial end portion opposite the outer axial end portion, the inner axial end portion of the first dispenser member being shaped and arranged to be inserted into the first opening at one end of the coreless film roll, the inner axial end portion of the first dispenser member being radially expandable to engage the coreless film roll in the roll axis passage; and a second dispenser member having an outer axial end portion and an inner axial end portion opposite the outer axial end portion, the inner axial end portion of the second dispenser member being shaped and arranged to be inserted into the second opening at another end of the coreless film roll, the second dispenser member being configured to engage the first dispenser member, the first and second dispenser members being selectively positionable relative to one another when interengaged in at least a first angular position and a second angular position, the inner axial end portion of the first dispenser member having a first radial position upon engagement of the first and second dispenser members in the first angular position, and the inner axial end portion of the first dispenser member being expanded to a second radial position upon engagement of the first and second dispenser members in the second angular position, the second radial position being radially outward of the first radial position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A film dispenser for use in unwinding film from coreless film rolls each having a roll axis passage including first and second openings at opposite ends of the coreless film roll, the film dispenser comprising:
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a first dispenser member having a longitudinal axis, an outer axial end portion, and an inner axial end portion spaced apart from the outer axial end portion along the longitudinal axis, the inner axial end portion of the first dispenser member being shaped and arranged to be inserted into a first opening of a roll axis passage of the film roll, the first dispenser member further comprising an axially inward facing support wall including a first interlocking formation; and a second dispenser member having a longitudinal axis, an outer axial end portion, and an inner axial end portion spaced apart from the outer axial end portion along the longitudinal axis, the inner axial end portion of the second dispenser member being shaped and arranged to be inserted into the second opening of the roll axis passage, the second dispenser member being shaped and arranged to engage the first dispenser member, the second dispenser member further comprising an axially inward facing support wall including a second interlocking formation configured for interlocking engagement with the first interlocking formation when the second dispenser member engages the first dispenser member within the roll axis passage for supporting an axial mid-portion of the coreless film roll. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification