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:
Jun. 14, 1988
Filed:
Aug. 12, 1986
Camillo Catelli, Parma, IT;
Rossi & Catelli S.p.A., , IT;
Abstract
The dispensing head disclosed comprises a chamber (2) with a bottom outlet (3), and a coaxial hollow plunger (8) the bottom end of which carries a plug (10) that registers in the outlet. The plunger is capable of axial shift between a raised position, and a lowered position in which the plug (10) blocks the outlet (3); on completion of the single batching cycle, the plug is lowered into the outlet and pressurized inert gas is directed through the plunger. The head also comprises a poppet (16) capable of axial movement between a raised position, in which it registers in the bore (11) of the plug (10), and a lowered position in which it is distanced from the mouth of the bore; the poppet is fixed to the bottom end of a slender stem (17) accommodated within the hollow plunger (8), and reciprocated in such a way that it keeps the bore (11) normally closed, and is moved into the lowered position only when the plug (10) happens likewise to be in its lowered position.