Daniel C Farabaugh

US Patent:

52154122, Jun 1, 1993

Filed:

Oct 11, 1991

Appl. No.:

7/774898

Inventors:

Eric A. Rogoff - Bethel Park PA
Philip A. Ignelzi - Pittsburgh PA
Daniel G. Farabaugh - Monroeville PA

International Classification:

B65G 5134
B65G 5126
B65G 5106
B65G 5136

US Classification:

406112

Abstract:

A pneumatic transport system, particularly useful as a mail transport system, which includes a transport carrier moving through a pneumatic tube line between remote sending/receiving stations is described. Movement of the transport carrier through the pneumatic tube line is by means of a positive or negative air flow in the tube line provided by a blower means. The air flow direction is controlled by utilizing a series of adjustable valves, such as butterfly valves. The system additionally employs sensors for indicating the presence of the carrier in the exterior station.