INTEGRAL CLOSURE FOR THERMOPLASTIC CONTAINERS AND THEIR PRODUCTION

An improved integral thermoplastic closure for a container formed of a film or sheet, and method of manufacture. The closure includes a pair of interlocking fastener elements with ribs on either side of at least one of the fastener elements to provide a stiffening effect to assist a user in interloc...

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Bibliographic Details
Main Authors JULIE M FISHER, DENNIS R TUMMINIA
Format Patent
LanguageEnglish
Published 25.06.1986
Edition4
Subjects
ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS
CONVEYING
HABERDASHERY
HANDLING THIN OR FILAMENTARY MATERIAL
HUMAN NECESSITIES
JEWELLERY
PACKAGES
PACKAGING ELEMENTS
PACKING
PERFORMING OPERATIONS
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
STORING
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:An improved integral thermoplastic closure for a container formed of a film or sheet, and method of manufacture. The closure includes a pair of interlocking fastener elements with ribs on either side of at least one of the fastener elements to provide a stiffening effect to assist a user in interlocking the fastener elements. By controlling the thickness of a base portion of the fastener element so that it has a thickness greater than the film, the spacing of the ribs adjacent to a profile can be controlled to provide the desired stiffening and wide-track feel in the fastener element.
Bibliography:Application Number: GB19830033273