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:
Sep. 04, 2001
Filed:
Jan. 28, 2000
Applicant:
Inventor:
Antonino Ragno, Milan, IT;
Assignee:
Lumson S.p.A., Capergnanica, IT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B67D 5/00 ;
U.S. Cl.
CPC ...
B67D 5/00 ;
Abstract
A fluid substance dispenser includes a dispensing head or pusher to be fitted onto the stem of a pump. The fluid substance dispenser also includes a cap to be fixed onto the mouth of a container containing the substance to be dispensed. On the outer surface of the head and on the inner surface of the cap, spiral ribs are provided which extend in the same direction. The spiral ribs interfere with each other and pass snapwise over each other, when the head is pressed onto the cap. The spiral ribs cooperating “with each other” to cause the head to withdraw from the cap, when the head is rotated about the cap.