Back to results
US 4,033,014 AGranted
Continuous molded slide fastener stringer and method and apparatus for manufacture
AssigneeTextron Inc.
InventorHarry F. Manning
Life of this patent
Estimating the term…
Abstract
Interconnecting threads for continuous molded coupling elements are used as load bearing members securing the coupling elements to a support tape. The strength of the union of the connecting threads with the molded coupling elements is increased such as by displacing central portions of embedded segments of the connecting threads deeper into leg portions of the coupling elements or providing a plurality of spaced connecting threads for each leg portion of a pair of leg portions of each element.
Claims17
A stringer for a slide fastener comprising
- a carrier tape,
- a train of spaced coupling elements disposed along one edge of the tape,
- each of said coupling elements having a head portion and a pair of leg portions extending from opposite sides of the head portion,
- each pair of said pairs of leg portions extending in substantially the same direction from the respective head portion,
- at least four spaced connecting threads,
- pairs of said connecting threads having respective spaced segments embedded in spaced relationship in respective leg portions of the pairs of leg portions to interconnect the coupling elements, and
- thread means encircling the connecting threads between the coupling elements and securing the connecting threads to the one edge of the tape.
4 more elements
A stringer for a slide fastener comprising
- a carrier tape,
- a train of molded synthetic polymer resin coupling elements disposed in spaced relationship along one edge of the tape,
- each of said coupling elements having a head portion and a pair of leg portions extending from opposite sides of the head portion,
- each pair of said pairs of leg portions being bent to extend in substantially the same direction from the respective head portion,
- at least two connecting threads,
- each of said two connecting threads having spaced segments embedded in respective leg portions of the pairs of leg portions to interconnect the coupling elements,
- said embedded segments at their opposite ends entering the front and back sides of the respective leg portions adjacent inner sides of the leg portions,
- the embedded segments having midportions being displaced from straight lines between the ends of the embedded segments such that the midportions are deeply embedded in the leg portions, and
- thread means encircling the connecting threads between each of the coupling elements and securing the connecting threads to the one edge of the tape.
6 more elements
Dependencies are inferred from the claim text.