Randall L Wire

US Patent:

54212685, Jun 6, 1995

Filed:

Nov 17, 1993

Appl. No.:

8/153036

Inventors:

Charles Roberts - Evansville IN
Donald Swallow - Evansville IN
Randall Wire - Boonville IN

Assignee:

Evana Automation - Evansville IN

International Classification:

B61C 700

US Classification:

105 2605

Abstract:

A conveying system is provided for moving a pallet along straight and curved paths. The conveying system includes a track on which the pallet is mounted for movement by means of a motor driven roller pivotally mounted on the pallet which engages a stationary shaft mounted on the track. Depending on the position of the drive roller in relation to the shaft, the pallet is driven forward, rearward, or remains stationary. The drive roller is resiliently urged into contact with the shaft and is pivotally mounted on the pallet so as to be movable between a forward drive position, a rearward drive position, and a stationary position. A resilient bias urges the drive roller to the forward drive position. A cam mechanism is provided to move the drive roller to the stationary position when desired.

US Patent:

56322070, May 27, 1997

Filed:

Feb 8, 1995

Appl. No.:

8/385636

Inventors:

Charles Roberts - Evansville IN
Donald Swallow - Evansville IN
Randall Wire - Boonville IN

Assignee:

Evana Automation - Evansville IN

International Classification:

B60L 500

US Classification:

104288

Abstract:

A conveying system is provided for moving a pallet along straight and curved paths. The conveying system includes a track on which the pallet is mounted for movement by a motor driven roller which engages a stationary shaft mounted on the track. The drive roller is urged into contact with the shaft and is capable of clockwise and counterclockwise rotation in order to effectuate forward or reverse motion of the pallet. A control device is provided for controlling the speed and stopping and starting the pallet. The control device may include object detectors and/or switches for stopping the pallet in response to objects on the track or for stopping the pallet at predetermined locations.