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:
Apr. 05, 1977
Filed:
Nov. 10, 1975
Lowell F Nelson, Muskegon, MI (US);
Enterprise Brass Works, Muskegan, MI (US);
Abstract
An automatic nozzle assembly for the dispensing of gasoline and similar liquids and of simple, efficient and low cost construction. A stem extends into a housing and is actuated by a handle. The stem extends through a check valve which closes a downstream opening in a valve seat secured in the housing. A poppet valve is disposed about the valve stem and closes the upstream side of the opening in the valve seat to prevent fluid flow therethrough. A yoke is disposed about the upper end of the poppet valve and balls are disposed in openings in the poppet valve and are forced into engagement with the top of the stem whereby the poppet valve moves upwardly with the stem and whereby the yoke may be moved to allow the balls out of engagement with the stem whereby the poppet valve may close independently of movement of the stem. The movement of the yoke is controlled by the movement of a diaphragm which, in turn, is in communication with an annular groove in the valve seat which is, in turn, in communication with the opening in the valve seat through passages whereby a venturi is formed between the check valve and the opening in the valve seat to create a vacuum. Normally, the vacuum is in fluid communication, through a vacuum tube connected to the valve seat, with the end of a nozzle tube connected to the housing such that, when liquid covers the end of the vacuum tube, the vacuum is applied to the diaphragm to cause movement thereof to automatically allow the poppet valve to close.