Title: Railroad tank car and method for transporting liquids

Abstract: A flexible diaphragm can be moved to line opposite surfaces of a vehicle so that incompatible fluids alternately can be transported in the vehicle without the need for cleaning it. The edge of the diaphragm may be held against the inside surface of the vehicle container by a series of aligned clamps that are independently movable. The terminal edge of the diaphragm is enclosed in a transient pressure absorbing chamber defined in part by the under surface of the clamps which enables the clamps to exert increased sealing pressure on the diaphragm during the transient pressure surges caused by movement of the liquid when the vehicle changes speed or direction suddenly.

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Inventors: Parsons, James D. (Munster, IN, US)

Application Number: 932818
Filing Date: 1978-08-10
Publication_date: 1980-08-05
Assignee: Union Tank Car Company (Lincolnshire, IL)
Primary Class(es): 220/530 220/720, 222/386.5
Other Classes:
US Patent Ref:

2884978	May, 1959	Grimm	220/85.
3502204	Mar, 1970	Paton	220/85.

Other Refs: 2724221

Dec, 1977	DE

Primary Examiner: Lowrance, George E.
Assistant Examiner:
Attorney: Siegel; Joel E., Kaplan; Charles M.