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US 7,604,112 B1Granted
Beading for a conveyor belt
AssigneeTransnorm System GmbH
InventorRick Lee
Life of this patent
Estimating the term…
Abstract
The present invention is related to interlockers or beadings that are attached to the outer edges of conveyor belts. Interlockers and/or beadings are reinforced with aramid fibers to improve their durability.
Claims20
An interlocker attached to an outer margin of a conveyor belt, comprising:
- a) a flexible beading integrally formed with a head, a first lip and a second lip such that said head surrounds said outer margin of said conveyor belt, wherein said flexible beading comprises a composition distinct from said conveyor belt's composition, and wherein said flexible beading's composition further comprises:
- i) from about 97% w/w to about 98% w/w polyether-based thermoplastic polyurethane;
- ii) from about 1% w/w to about 3% w/w polyparaphenylene terphthalamide fibers randomly dispersed and embedded in said polyether-based thermoplastic polyurethane, wherein said polyparaphenylene terphthalamide fibers have diameters from about 10 micrometers to about 14 micrometers and lengths from about 3 millimeters to about 7 millimeters;
- iii) a tensile strength of about 30 Newtons per square millimeter or greater;
- iv) a tear strength of about 2400 Newtons or greater;
- and
- v) a Shore A hardness of from about 85 to about 90;
- and
- b) at least one of said first lip or said second lip comprising teeth for meshing with a driver.
6 more elements
A beading extending outward from an outward arc of a curved conveyor belt, comprising:
- a) a generally ellipsoidal shaped head;
- b) a first leg;
- c) a second leg spaced apart from said first leg;
- and
- d) a tapered transitional body, extending between said generally ellipsoidal shaped head and said first leg and said second leg, wherein one or more of said generally ellipsoidal shaped head's, said first leg's, said second leg's or said transitional body's compositions comprises:
- i) from about 97% w/w to about 98% w/w polyether-based thermoplastic polyurethane;
- ii) from about 1% w/w to about 3% w/w aramid fibers randomly dispersed and embedded in said polyether-based thermoplastic polyurethane;
- iii) a Shore A hardness of from about 85 to about 90;
- and
- iv) a specific gravity of from about 1.07 to about 1.11.
7 more elements
A beading attached to an endless loop conveyor belt, comprising:
- a) a head;
- b) a first leg;
- c) a second leg;
- and
- d) a transitional body extending between said head and said first leg and said second leg, wherein at least one of said head's, said first leg's, said second leg's or said transitional body's compositions comprises:
- i) from about 97% w/w to about 98% w/w polyether-based thermoplastic polyurethane;
- ii) from about 1% w/w to about 3% w/w aramid fibers randomly dispersed and embedded in said polyether-based thermoplastic polyurethane;
- and
- iii) a Shore A hardness of from about 85 to about 90.
6 more elements
A beading attached to a margin of a conveyor belt, comprising:
- i) from about 97% w/w to about 98% w/w polyether-based thermoplastic polyurethane;
- ii) from about 1% w/w to about 3% w/w aramid fibers embedded in said polyether-based thermoplastic polyurethane;
- and
- iii) a Shore A hardness of from about 85 to about 90.
1 more element
Dependencies are inferred from the claim text.