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. 20, 2011
Filed:
Jan. 23, 2007
Edgar Ivo Maria Van Der Heijden, Broek Op Langedijk, NL;
Edgar Ivo Maria van der Heijden, Broek Op Langedijk, NL;
Rexam Airspray N.V., Alkmaar, NL;
Abstract
The invention relates to a dispensing device for dispensing a foam, comprising a manually compressible container () for storing a liquid and air, which container comprises an opening (), a rigid housing () to be fitted in or on the opening, the housing comprising an air passage () and a liquid passage (), which are in communication with a dispensing passage () which ends in a dispensing opening (), and a valve body () which, in a rest position, covers a mouth of the liquid passage and a mouth of the air passage () in a sealing manner in order to prevent a flow from the liquid passage and the air passage to the dispensing passage, and which, during dispensing, opens the mouth of the liquid passage and the mouth of the air passage in order to allow mixing of air and liquid to take place in the dispensing passage. The invention is characterized in that the elastic valve body comprises an arcuate section (), which arcuate section extends in the mouth of the liquid passage in such a way that, initially, due to the liquid pressure in the liquid passage on the valve body, the arcuate section improves the sealing of the mouth of the liquid passage.