The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 30, 2001
Filed:
Mar. 04, 2000
Spencer M. Nimberger, Houston, TX (US);
Robert L. Ward, Missouri City, TX (US);
PGI International, Ltd., Houston, TX (US);
Abstract
A system for transferring a hazardous fluid product from a transport tank (,) of a roadway vehicle (,) to a fixed storage tank (,). A flexible transfer hose assembly (,) has end couplings (,) which are detachably connected between the transport tank (,) and storage tank (,). A gas operated product supply valve (,) is opened by pressurized gas to permit flow of the hazardous product, such as propane, from tank (,). A gas control valve (,) controls the flow of pressurized gas to gas operated product supply valve (,). Upon a separation or rupture of flexible hose (,) or couplings (,), the fluid pressure of the hazardous product in hose (,) is sensed at fluid sensing chamber (,) in gas control valve (,). A reduction in sensed fluid pressure to a predetermined maximum pressure results in movement of piston (,) to the position shown in FIG.,in which pressurized gas from gas source (,) is vented to atmosphere to result in closing of gas operated product supply valve (,) to stop the flow of hazardous product from tank (,). FIG. 7 shows the transfer of the hazardous fluid from a storage tank (,A) to a tank (,A) of a roadway vehicle.