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:
Jan. 30, 1990
Filed:
Jun. 08, 1988
Applicant:
Inventor:
Giancarlo Giuffredi, Milan, IT;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D / ; G01I / ; B67D / ;
U.S. Cl.
CPC ...
222321 ; 222385 ; 239333 ;
Abstract
The device comprises a pump with its plunger mobile in a cylinder against the action of a spring, and a delivery button associated with the plunger for controlling its delivery movement. The button incorporates a shut-off member provided on a flexible diaphragm fixed peripherally in a seat in the button.