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. 15, 1991
Filed:
Jan. 06, 1989
Claude Jouillat, Montigny sur Avre, FR;
S.T.E.P., Avre, FR;
Abstract
It is advantageous for a substance in the form of a liquid or a paste to be packaged under pressure and in the absence of any air inside a receptacle (1) which is hermetically closed by a valve (2) for the purpose of dispensing the substance. A convenient way of putting the substance under pressure therefore consists in using a resilient receptacle (1) which is prior deformed so that its walls (10) seek to return to their natural shape (in dashed lines) and exert a force on the substance. The present invention uses mechanical means for imparting said deformation. As a result, the receptacle (1) can be filled with substance at atmospheric pressure. The receptacle is constituted by a single envelope whose shape is of an appearance suitable for the market for this type of dispenser and is adapted to easy manipulation in the hand. Finally, if the dispenser is provided with a precompression pump type valve (2) up to 95% of the substance initially contained in the receptacle (1) can be dispensed.