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:
Jul. 07, 1981
Filed:
Jun. 04, 1979
Paul R Ostand, Cincinnati, OH (US);
Dover Corporation, New York, NY (US);
Abstract
An automatic shut-off nozzle has liquid flow through its vapor return means stopped in response to movement of an actuator by a flexible diaphragm when liquid has filled the vapor line sufficiently to move a float into engagement with the diaphragm. The actuator produces a signal to cause stopping of liquid flow through the nozzle. In another embodiment, a flexible diaphragm is positioned to block vapor flow through the vapor return means when a predetermined quantity of liquid is collected by the diaphragm. The blocking of the vapor return means creates an increased pressure, which can be sensed by a pressure transducer, for example, with the pressure transducer producing a signal to stop liquid flow through the nozzle. The automatic shut-off nozzle also stops flow in response to the tank being filled to a predetermined level with liquid or to the pressure in the tank exceeding a predetermined pressure.