DONALD E RIGGIE
Social Work in Monson, MA

License number
Massachusetts 302149
Issued Date
Apr 26, 1982
Expiration Date
Oct 1, 1990
Type
Licensed Social Worker
Address
Address
Monson, MA 01057

Professional information

Donald Riggie Photo 1

Transport System

US Patent:
7721655, May 25, 2010
Filed:
Sep 19, 2007
Appl. No.:
11/857519
Inventors:
Donald E. Riggie - Monson MA, US
International Classification:
B61B 7/00
US Classification:
104115, 104111, 104112
Abstract:
A transport system comprising a cable traveling subsystem movable along a cable that is attached to and extends from a mounting subsystem. The cable traveling subsystem comprises a wheel that rotates along a length of the cable. The cable traveling subsystem further comprises a movable gate which keeps the cable traveling subsystem in physical communication with the cable even should the wheel become disengaged from the cable, and which further allows the cable traveling subsystem to travel though the mounting subsystem thereby resulting in the cable traveling subsystem's uninterrupted flow of motion.