Patent ID: 11897708
Assignee: PEVCO SYSTEMS INTERNATIONAL INC.
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A workstation, comprising:
a first sensor configured to detect presence of a first one of a plurality of carriers at a predetermined location at the workstation, the predetermined location being a location to which carriers are delivered to the workstation via a pneumatic tube delivery system;
a second sensor configured to detect a presence of the first carrier in an area surrounding the workstation; and
circuitry connecting the first and second sensors with a central processor for the pneumatic tube delivery system,
wherein, when the first sensor detects the presence of the first carrier at the predetermined location, the central processor determines the first carrier is at the workstation, and
wherein, when the first sensor detects an absence of the presence of the first carrier at the predetermined location and the second sensor detects the presence of the first carrier in the area surrounding the workstation, the central processor determines the first carrier remains in the area surrounding the workstation; and
wherein, when the first sensor detects the absence of the presence of the first carrier at the predetermined location and the second sensor detects an absence of the presence of the first carrier in the area surrounding the workstation, the central processor determines the first carrier is no longer at the workstation.