Conveying device
AssigneeNMC-Wollard, Inc.
InventorRichard A. Canapa
Life of this patent
Estimating the term…
Abstract
A portable conveying device comprising an inclining base having a conveyor belt, a plurality of articulating conveying elements having powered cargo rollers defining a conveying device transport plane, the conveying elements extendable from and retractable into the base by drive means. The drive means may include a pair of spaced-apart spur gears which have teeth that engage with rack teeth of the conveying elements. The conveying device may include a hollow universal joint having axes of rotation lying substantially in the same plane.
Claims20
A conveying device comprising:
- at least a first conveying element comprising:
- a supporting rail;
- a cargo roller positioned above said supporting rail;
- and
- said supporting rail having at least one rack tooth,
- where said supporting rail is substantially parallel to an axial direction of said cargo roller.
A conveying device comprising:
- at least a first spur gear;
- at least two conveying elements each having a cargo roller, said at least two conveying elements defining a groove in which at least one tooth of said spur gear inserts;
- and
- at least one of said conveying elements has a supporting rail,
- where said supporting rail is substantially parallel to an axial direction of said cargo roller.
A conveying device comprising:
- at least a first spur gear;
- at least two conveying elements each having a cargo roller, said at least two conveying elements defining a groove in which at least one tooth of said spur gear inserts;
- and
- a universal joint connecting said at least two conveying elements, said universal joint including a yoke having a hollow rectangular cross section.
A conveying device comprising:
- a base;
- at least a first spur gear rotatably affixed to said base;
- and
- at least two conveying elements extendable from said base and each including a cargo roller, at least one of said conveying elements has a supporting rail substantially parallel to an axial direction of said cargo roller associated with said conveying element, said at least two conveying elements defining a groove in which at least one finger of said spur gear inserts.
A conveying device comprising:
- a base;
- at least a first conveying element having a supporting rail and a cargo roller positioned above said rail, said supporting rail having a rack element;
- a drive means for engaging with said rack element to extend said first conveying element from said base,
- where said supporting rail is substantially parallel to an axial direction of said cargo roller.
Dependencies are inferred from the claim text.